[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.1"]
[White "Delgado Ramirez, Neuris"]
[Black "Santiso, Daniel"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2634"]
[BlackElo "1900"]
[Annotator "TA"]
[PlyCount "29"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,29,0,22,7,10,0,0,0,0,0,0,0,8,3,8,0,67,65,193,196,1044,880]} 1. e4 c5 2. Nf3 Nc6 3. b4 d6 4. bxc5 dxc5 5. Nc3 g6 6. Bb5 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6.} Bd7 7. Bxc6 Bxc6 {[#]} 8. Ne5 $146 {The position is equal.} ({Predecessor:} 8. O-O Bg7 9. Qe2 Nf6 10. d3 O-O 11. Ba3 Nd7 12. Qd2 Qc7 13. Kh1 b5 14. Bb2 b4 15. Nd1 Rad8 16. Bxg7 Kxg7 17. Nb2 Bb5 18. Nc4 Bxc4 19. dxc4 Ne5 {0-1 (19) Zavadilova,K-Palasek,J Sec u Chrudimi 2004}) 8... Qc7 9. Nxc6 Qxc6 10. O-O Bg7 11. Bb2 e6 12. Re1 Nf6 (12... Ne7 $11) 13. Nd5 $14 {[%mdl 64] [#] Pin} e5 (13... Nh5 $14 14. Bxg7 Nxg7) 14. Bxe5 $18 {Black must now prevent Nc7+.} O-O $2 (14... Kf8) 15. Ne7+ {[%mdl 64] Double Attack. Accuracy: White = 100%, Black = 46%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.2"]
[White "Avedisian, Alexander"]
[Black "Hernandez Guerrero, Gilberto"]
[Result "0-1"]
[ECO "A36"]
[WhiteElo "1892"]
[BlackElo "2557"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,56,-2,-4,26,28,14,15,14,19,11,-122,-98,-91,-96,-172,-173,-159,-16,-207,-193,-255,-246,-257,-264,-325,-317,-482,-477,-635,-643,-736,-720,-817,-795,-1360,-1297,-2735,-2580]} 1. g3 g6 2. Bg2 Bg7 3. c4 c5 4. Nc3 Nc6 5. d3 e6 6. e4 Nge7 7. Nge2 d6 8. O-O O-O 9. Be3 Nd4 10. Qd2 Nec6 11. Bh6 Ne5 {A36: Symmetrical English vs ...g6: 4 Bg2 Bg7.} 12. Nxd4 {Hoping for Bxg7.} cxd4 13. Ne2 Bxh6 {The position is equal.} 14. Qxh6 Qb6 {[#]} 15. f4 $146 {[#]} (15. Qd2 $11 {keeps the balance.}) ({Predecessor:} 15. Qd2 a5 16. b3 Bd7 17. h3 Nc6 18. Rab1 Qc5 19. f4 Rae8 20. Kh2 f5 21. Qb2 fxe4 22. Bxe4 {1-0 (38) Granados Gomez,M (2436)-Recuero Guerra,D (2350) Leon 2006}) 15... Ng4 $1 $17 {[%cal Rg4h6]} 16. Qg5 Ne3 $36 {[%mdl 2048] Black is really pushing.} 17. b3 (17. f5 $17 exf5 18. b3) 17... f6 $19 ({Resist} 17... Nxf1 18. Rxf1 f6 19. Qh6 $17) 18. Qh6 a5 (18... e5 $17 19. Rf3 Bg4) 19. Rab1 $2 (19. f5 $1 $11 gxf5 20. exf5) 19... e5 ({Don't do} 19... Nxf1 20. Rxf1 e5 21. f5 $17) 20. Bh3 (20. f5 {might work better.} gxf5 21. Bf3) 20... Nxf1 21. Rxf1 a4 22. f5 g5 ({Not} 22... axb3 23. fxg6 Qc7 24. Bxc8 $17) 23. b4 (23. Nc1 $142) 23... Qxb4 {Black is clearly winning.} 24. Kh1 Qd2 25. Bg4 b5 26. cxb5 Qxd3 {Played: Bc8-b7} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.3"]
[White "Tristan, Leonardo"]
[Black "Pustilnik, Iber"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2533"]
[BlackElo "1892"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,99,85,75,102,99,88,89,124,108,111,105,111,111,111,90,191,187,193,188,188,181,191,171,170,175,215,197,194,42,39,20,134,125,120,22,31,24,0,21,14,8,10,10,55,0,5,0,0,0,0,-5,0,0,0,9,8,0,8,0,0,0,0,-18,110,7,25,6,7,-10,59,74,171,179,724,691,860,837,837,818,1005,995,918,901,2365,2291,1684,1584]} 1. d4 Nf6 2. Bg5 Ne4 3. Bf4 d6 4. f3 Nf6 5. e4 c5 6. dxc5 Qa5+ 7. Nc3 {[%cal Bb1c3,Bc3a4,Ba4b6][%mdl 32]} Qxc5 8. Qd2 a6 {A45: Trompowsky Attack.} 9. O-O-O Nc6 10. Na4 Qb4 {White is better.} 11. Qxb4 Nxb4 12. Nb6 Rb8 13. e5 Nd7 14. exd6 exd6 (14... e6 $16 {keeps fighting.}) 15. Nc4 $18 ({Weaker is} 15. Bxd6 Bxd6 16. Rxd6 Nxa2+ 17. Kb1 Nb4 $11) 15... Ne5 {[#]} 16. Nxe5 $146 ({Predecessor:} 16. Nxd6+ Bxd6 17. Rxd6 f6 18. Bxe5 fxe5 19. a3 Ke7 20. Rd2 Nc6 21. Ne2 Be6 22. Nc3 {1-0 (71) Solaesa Navalpotro,L (2251)-Ortiz Herranz,E (2243) Madrid 2010}) 16... dxe5 17. Bxe5 Ra8 18. Bc4 Bf5 19. Bc3 Nxc2 20. Rd5 Bg6 {[#]} 21. Re5+ $2 (21. Nh3 $1 $18) 21... Kd7 $1 $14 22. Nh3 {Black must now prevent Rd1+.} Nb4 (22... Rc8 $11 23. Rd1+ Bd6) 23. Rd1+ $16 Kc7 24. Ng5 (24. Nf4 $16) 24... Bd6 $1 $11 25. Nxf7 (25. Re2 {seems wilder.} Rhe8 26. Rxe8 Bf4+ 27. Bd2 Bxd2+ 28. Kxd2 Rxe8 29. Rc1) 25... Bxf7 26. Bxf7 {Strongly threatening Rh5.} Bxe5 27. Bxe5+ Kb6 $1 28. Bd4+ Kc7 29. Be5+ Kb6 $1 30. Rd6+ Nc6 31. Bxg7 Rhd8 32. Rf6 Rd7 33. Bh6 Rad8 34. Be3+ Kc7 {And now ...Rf8 would win.} 35. Bf4+ Kb6 $132 {[%mdl 2048] ...Rf8 is the strong threat. Black is not keeping still} 36. Be3+ Kc7 {Threatens to win with ...Rf8.} 37. Bb3 Kb8 38. a3 Ka8 {[#]} (38... Nd4 $11 {keeps the balance.} 39. Bf4+ Ka8) 39. Bb6 (39. Bc2 $1 $16) 39... Re8 40. Ba4 Rc8 41. Kb1 Rg7 (41... Rd2 $11) 42. g4 $14 Ne7 (42... Rg6 $16 43. Rxg6 hxg6) 43. Bd4 $18 Nc6 $2 (43... Ng6 44. Rxa6+ {[%mdl 64] Discovered Attack} bxa6 45. Bxg7 Rc7) 44. Rxc6 {[%mdl 64] Discovered Attack. White is clearly winning.} bxc6 45. Bxg7 Kb7 46. Bb3 Rd8 47. f4 Rd3 48. Kc2 Rh3 49. f5 Rxh2+ 50. Kb1 {Accuracy: White = 81%, Black = 55%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.4"]
[White "Belistri, Ubaldo"]
[Black "Lima, Darcy"]
[Result "0-1"]
[ECO "A33"]
[WhiteElo "1877"]
[BlackElo "2526"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,58,22,-17,-1,-4,0,-7,44,0,12,-17,0,0,0,-150,-156,-156,-148,-160,-168,-180,-172,-208,-187,-183,-173,-171,-155,-150,-149,-208,-182,-166,-148,-320,-332,-324,-339,-455,-461,-670,-671,-671,-671,-666,-658,-636,-654]} 1. d4 Nf6 2. Nf3 e6 3. c4 c5 4. Nc3 cxd4 5. Nxd4 Nc6 6. g3 Qb6 7. Nc2 {7.Ndb5 is a critical line.} Bc5 {A33: Symmetrical English: 2 Nf3 Nf6 3 d4 cxd4 4 Nxd4 e6 5 Nc3 Nc6.} 8. e3 O-O 9. Bg2 Ne5 {[#]} (9... d5 $11) 10. Qe2 $146 ({Predecessor:} 10. b3 Qa5 11. Bd2 Qc7 12. O-O d5 13. cxd5 exd5 14. Na4 Be7 15. Nd4 Bg4 16. f3 {½-½ (61) Lehtivaara,P (2303)-Jantti,P (2101) Finland 2013}) 10... d5 11. cxd5 exd5 12. O-O $1 Bg4 $36 {[%mdl 2048] Black fights for an advantage.} 13. Qb5 (13. Qd2 $11) 13... Qxb5 $17 {[%mdl 64] [#] Overworked Piece} 14. Nxb5 Be2 {[%mdl 64] Double Attack} 15. Nc3 Bxf1 16. Kxf1 Rfd8 17. Na4 Bf8 18. Nd4 Rac8 19. Bh3 Rc7 20. Bd2 Re8 21. Ke2 (21. Rd1 $17 {keeps fighting.}) 21... Ne4 22. Be1 g6 23. f3 $2 (23. Nc3 $17) 23... Ng5 $19 24. Bg2 Ne6 {[%mdl 64] [#] aiming for ...Nxd4+. Overworked Piece} 25. Nxe6 Rc2+ {Black is clearly winning.} ({Weaker is} 25... fxe6 26. Nc3 $19) ({Less strong is} 25... Rxe6 26. Nc3 $19) 26. Bd2 (26. Kf1 $142 fxe6 27. Kg1) 26... Bb4 {Played: Ne5-c4} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.5"]
[White "Vazquez, Guillermo"]
[Black "Palacio, Enzo"]
[Result "1-0"]
[ECO "B53"]
[WhiteElo "2524"]
[BlackElo "1869"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,71,18,25,0,0,0,15,8,16,5,38,25,52,9,17,25,77,86,122,106,108,81,75,77,70,88,83,79,120,113,205,196,282,274,295,297,355,328,443,366,309,314,412,364,361,366,433,417,436,404,407,411,401,351,429,424,504,515,600,593,936,937]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Bd7 6. Qd3 g6 7. c4 {B53: Sicilian: 2...d6: Lines with Qxd4.} Bg7 8. Nc3 Nf6 9. O-O {The position is equal.} O-O 10. h3 {[#]} Qc7 $146 ({Predecessor:} 10... a6 11. Bxc6 Bxc6 12. Nd4 Rc8 13. Be3 Bd7 14. Rac1 h6 15. b3 Qa5 16. Qd2 Kh7 {½-½ (32) Chigaev,M (2616)-Li,C (2683) chess.com INT 2020}) 11. Bg5 Nb4 12. Qe2 (12. Qd2 {is interesting.} Be6 13. Rac1 a6 14. Nd5 Qd8 15. Qxb4 axb5 16. Qxb5 Rxa2 17. Ra1) 12... a6 13. Bxd7 Qxd7 (13... Nxd7 $11 14. Nd5 (14. Bxe7 Rfe8 $11) 14... Nxd5 15. cxd5 (15. exd5 Rae8 $11) 15... Rfc8) 14. Rad1 $16 Qc7 15. a3 Nc6 16. Bxf6 exf6 17. Nd5 Qd8 18. Rfe1 $36 {[%mdl 2048] White has strong initiative.} Re8 19. Qd3 Ne5 20. Nxe5 dxe5 (20... fxe5 $16 21. b3 Rb8) 21. c5 $18 f5 (21... Rb8 {was worth a try.} 22. Qc2 Rc8) 22. exf5 gxf5 23. Qxf5 Rb8 24. b4 h6 25. Ne3 Qf6 26. Rd7 Re6 27. Qxf6 Bxf6 28. Nf5 Bg7 29. Nd6 e4 30. Rxb7 Rxb7 31. Nxb7 {KRB-KRN} Bb2 32. Re3 Bd4 33. Re2 {White is clearly winning.} f5 34. Nd6 e3 35. Nxf5 {[%mdl 64] Double Attack} exf2+ {[#]} 36. Kf1 $1 {Accuracy: White = 84%, Black = 36%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.6"]
[White "Urrestarazu, Diego"]
[Black "Hungaski, Robert"]
[Result "0-1"]
[ECO "A22"]
[WhiteElo "1837"]
[BlackElo "2504"]
[Annotator "ChessBase"]
[PlyCount "80"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. c4 {[%emt 0:00:12]} e5 {[%emt 0:00:00]} 2. Nc3 {[%emt 0:00:08]} Nf6 {[%emt 0:00:00]} 3. g3 {[%emt 0:00:24]} d5 {[%emt 0:00:00]} 4. cxd5 {[%emt 0:00:12]} Nxd5 {[%emt 0:00:00]} 5. Bg2 {[%emt 0:00:17]} Nb6 {[%emt 0:00:00]} 6. d3 {[%emt 0:00:52]} Be7 {[%emt 0:00:12]} 7. Nf3 {[%emt 0:00:38]} Nc6 {[%emt 0:00:06]} 8. O-O {[%emt 0:00:21]} O-O {[%emt 0:00:06]} 9. Be3 {[%emt 0:02:33]} Bg4 {[%emt 0:05:14]} 10. Qd2 {[%emt 0:06:28]} Re8 {[%emt 0:03:08]} 11. Rac1 {[%emt 0:11:46]} Bf8 {[%emt 0:05:59]} 12. h3 {[%emt 0:05:22]} Bh5 {[%emt 0:01:48]} 13. Rfd1 {[%emt 0:07:29]} Nd4 {[%emt 0:04:27]} 14. Bxd4 {[%emt 0:06:48]} exd4 {[%emt 0:00:12]} 15. Ne4 {[%emt 0:02:28]} c6 {[%emt 0:09:21]} 16. Nc5 {[%emt 0:08:01]} Bxc5 {[%emt 0:09:45]} 17. Rxc5 {[%emt 0:00:08]} Bxf3 {[%emt 0:02:25]} 18. Bxf3 {[%emt 0:01:07]} Nd7 {[%emt 0:04:09]} 19. Rf5 {[%emt 0:07:07]} g6 {[%emt 0:07:51]} 20. Rf4 {[%emt 0:07:21]} Nf8 {[%emt 0:00:56]} 21. Qb4 {[%emt 0:09:25]} Ne6 {[%emt 0:00:29]} 22. Rh4 {[%emt 0:01:28]} Qb6 {[%emt 0:02:18]} 23. Qd2 {[%emt 0:02:10]} a5 {[%emt 0:04:45]} 24. Rc1 {[%emt 0:09:50]} Qb4 {[%emt 0:01:04]} 25. Qh6 {[%emt 0:01:32]} Nf8 {[%emt 0:00:13]} 26. Rc4 {[%emt 0:02:29]} Qxb2 {[%emt 0:01:36]} 27. Rcxd4 {[%emt 0:00:17]} Qxa2 {[%emt 0:01:47]} 28. Rd7 {[%emt 0:05:52]} Qa1+ {[%emt 0:02:30]} 29. Kg2 {[%emt 0:00:13]} Nxd7 {[%emt 0:00:14]} 30. Qxh7+ {[%emt 0:00:25]} Kf8 {[%emt 0:00:08]} 31. d4 {[%emt 0:00:31]} Ke7 {[%emt 0:04:50]} 32. Rf4 {[%emt 0:00:49]} Rf8 {[%emt 0:04:57]} 33. Qh4+ {[%emt 0:00:28]} Kd6 {[%emt 0:02:17]} 34. Re4 {[%emt 0:00:46]} Kc7 {[%emt 0:02:05]} 35. Qf4+ {[%emt 0:00:23]} Kb6 {[%emt 0:05:45]} 36. d5 {[%emt 0:00:36]} Qf6 {[%emt 0:05:53]} 37. Qe3+ {[%emt 0:00:23]} c5 {[%emt 0:01:52]} 38. Qb3+ {[%emt 0:00:33]} Kc7 {[%emt 0:01:37]} 39. Rf4 {[%emt 0:00:59]} Qd6 {[%emt 0:00:17]} 40. e4 {[%emt 0:00:28]} f6 {[%emt 0:02:06]} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.7"]
[White "Rodriguez Vila, Andres"]
[Black "Barandiaran, Gabriel"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "2492"]
[BlackElo "1834"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,73,14,26,0,45,45,53,52,53,61,106,98,94,31,37,40,43,41,42,38,28,0,28,33,32,0,168,171,176,87,85,26,37,32,26,31,19,0,16,0,0,0,0,-22,-22,-21,-14,-34,-37,-45,0,0,70,44,754,248,743,743]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O d6 5. c3 Nf6 6. d4 exd4 7. cxd4 Bb6 8. Nc3 Bg4 9. Be3 O-O 10. Bb3 {C56: Two Knights: 4 d4 exd4 5 0-0 Nxe4.} Bxf3 11. gxf3 Qd7 12. Kh1 {[#] White is slightly better.} Kh8 $146 ({Predecessor:} 12... Qh3 13. Rg1 Nh5 14. Nd5 Rae8 15. Nxb6 axb6 16. Rg5 g6 17. Bc4 Qh4 18. Rg4 Qf6 {1-0 (40) Sedykh,A (2120)-Begishev,S (1938) Novosibirsk 2010}) 13. Rg1 Rae8 14. Ba4 {And now d5 would win.} d5 15. Bg5 (15. Qf1 $16) 15... Qe6 $1 $14 16. Bxf6 Qxf6 17. exd5 Nxd4 18. Bxe8 Rxe8 19. Rg3 Nf5 20. Rg4 Bxf2 {next ...Re1+ is good for Black.} 21. Re4 (21. Ne4 $5 {[%cal Re4f6]} Qb6 22. Qa4 $14) 21... Rxe4 $2 (21... Rg8 $11 {and Black stays safe.}) 22. Nxe4 $18 Qb6 23. Qa4 (23. Qb3 $18) 23... g6 $16 24. Qe8+ Kg7 25. Qe5+ f6 26. Qc3 {aiming for d6!} Bd4 27. Qc2 Be5 28. Re1 Qa5 29. Nc3 Qc5 30. Qd2 Qc4 31. Ne4 Qxa2 {Threatening ...Qb3.} 32. f4 Bd4 33. Rc1 Qxd5 34. Rxc7+ Kh6 (34... Kg8 $11 35. Rc8+ Kf7) 35. Qg2 $1 $14 {[%cal Rg2h3] White wants to mate with Qh3+.} Nh4 $2 {[%mdl 8192] [#]} (35... Ne3 $14 36. Qh3+ Qh5 37. Qxh5+ Kxh5) 36. Rxh7+ $1 $18 {[%mdl 576] Decoy} Kxh7 {[#]} 37. Nxf6+ $1 {[%mdl 576] Discovered Attack. Accuracy: White = 72%, Black = 68%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.8"]
[White "Zaruski, Julio"]
[Black "Hoffman, Alejandro"]
[Result "0-1"]
[ECO "A10"]
[WhiteElo "1822"]
[BlackElo "2472"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,121,0,10,2,16,21,33,24,29,18,67,35,40,-31,0,-46,-25,-58,16,19,31,25,35,42,131,131,197,5,61,30,134,141,204,154,158,146,266,241,237,188,268,257,229,211,198,224,194,56,86,12,33,-183,-20,-173,0,0,0,0,0,-28,0,-201,-193,-192,-196,-831,-130,-127,-129,-192,-182,-188,-157,-327,-333,-327,-293,-311,-301,-351,-385,-456,-446,-432,-430,-700,-625,-630,-599,-751,-453,-597,-606,-586,-500,-1026,-1289,-29987,-967,-783,-710,-1248,-1545,-29979,-29980,-29988,-29989,-29988,-29981,-29983,-6535,-2464]} 1. c4 g6 2. g3 Bg7 3. Bg2 e5 4. e4 d6 5. Nc3 Nc6 6. Nge2 h5 7. h3 {A25: English Opening vs King's Indian with ...Nc6 but without early d3.} Nh6 8. d3 Be6 {[#]} 9. Rb1 $146 {White is slightly better.} ({Predecessor:} 9. Nd5 f5 10. h4 Nf7 11. Be3 O-O 12. Qd2 a6 13. Rc1 Qd7 14. O-O a5 15. b3 {0-1 (48) McShane,L (2664)-Efimenko,Z (2701) Wijk aan Zee 2011}) 9... f5 10. exf5 gxf5 11. Be3 h4 12. Bd5 (12. d4 $1 $14 hxg3 13. d5) 12... Qd7 13. Bxe6 Qxe6 14. Nd5 $1 {[%cal Rd5c7]} Rc8 ({Better is} 14... O-O-O $15 15. Qa4 hxg3) 15. Rg1 $11 hxg3 16. Rxg3 Kf8 17. f4 Nf7 (17... e4 $14) 18. Kd2 $16 Nd4 (18... Ne7 $16) 19. Qf1 $2 (19. Bxd4 $18 c6 20. Qg1 (20. Bxa7 cxd5 21. Qg1 Bh6 $11) 20... cxd5 21. Rg6 (21. Rxg7 dxc4 22. Rg6 Qd5 $16) (21. Bxa7 Bh6 $11)) 19... c6 (19... Nxe2 $11 20. Qxe2 c6) 20. Ndc3 $14 Rh7 (20... Nxe2 $11 21. Nxe2 Bf6) 21. Qg2 $1 $16 Rc7 (21... Rd8 $16 22. Bf2 Nxe2 23. Nxe2 Bh8 24. Rg8+ (24. Bxa7 Rg7 $16) 24... Ke7) 22. Rg1 Nh8 23. Kc1 a6 (23... Re7 $16) 24. Kb1 $18 Rf7 25. h4 Qf6 (25... Ke8 $142 26. fxe5 Nxe2 27. Qxe2 (27. Nxe2 dxe5 28. Bc5 Kd8 $16) 27... Bxe5) 26. c5 dxc5 27. fxe5 Qxe5 28. Bf4 Qf6 {[#]} 29. Bg5 (29. h5 $1 $18 {[%mdl 512]}) 29... Qd6 $1 $14 30. Re3 ({White should play} 30. Bc1 $16) 30... Ng6 $11 31. Nc1 $2 (31. Re1 $1 $14 {was forced to keep a grip.} Kg8 32. Nxd4 Qxd4 33. Qe2) 31... Kg8 $2 (31... Nxh4 $19 32. Qf1 Ng6) 32. Rge1 $2 (32. Re8+ $11 Rf8 33. Ree1) 32... Bf8 $2 (32... Nxh4 $19 33. Bxh4 Rxh4 34. Re8+ Rf8) 33. Re8 Rhg7 $1 {...Nxh4! is the strong threat.} 34. Qf2 Kh7 35. Qe3 Be7 $36 {[%mdl 2048] Black has the initiative.} 36. Bxe7 $2 (36. Nb3 $11 {and White has nothing to worry.}) 36... Rxe7 $19 ({Resist} 36... Nxe7 37. Nb3 $17) 37. Qg5 {[%cal Rg5h5]} Rxe8 38. Rxe8 $2 (38. Qh5+ Kg8 39. Rxe8+ Kf7 40. Rh8) 38... Nf8 $2 (38... Nf4 $19 {has better winning chances.} 39. Qd8 Qxd8 40. Rxd8 Rg1 41. Rd7+ Kg8) 39. Qh5+ $17 Kg8 40. Re1 (40. N3e2 $17) 40... Qg3 $19 41. Qd1 Qxh4 42. Rg1 $2 (42. N3e2 $17) 42... Rxg1 43. Qxg1+ Qg4 44. Qh2 b5 45. a3 Nfe6 46. Ka1 b4 {Played: Qg4-f4} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.9"]
[White "Diaz Hollemaert, Nahuel"]
[Black "Araujo Abimorad, Leonardo"]
[Result "1-0"]
[ECO "E92"]
[WhiteElo "2450"]
[BlackElo "1807"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,57,51,29,47,39,42,49,47,45,81,77,94,90,92,86,93,92,111,106,124,125,146,133,299,292,387,398,599,608,612,598,822,824,817,814,824,822,790,793,821,821,920,767,1030,999,1274,1264]} 1. Nf3 Nf6 2. c4 d6 3. d4 g6 4. Nc3 Bg7 5. e4 O-O 6. Be2 e5 7. d5 b6 {E92: King's Indian: Classical: 6 Be2 e5: 7 dxe5, 7 Be3 and Petrosian System without 7...Nbd7} 8. Bg5 Nbd7 9. Nd2 a5 {White is slightly better.} 10. a3 {[%cal Ba2a3,Ba3b4,Bb4c5][%mdl 32] [#]} Nc5 $146 ({Predecessor:} 10... h6 11. Bh4 g5 12. Bg3 Nxe4 13. Ndxe4 f5 14. Bd3 f4 15. O-O Nc5 16. Nxc5 bxc5 {0-1 (27) Ruiz Vinals,M (2101)-Alemany Jara,A (1766) Palma de Mallorca 2009}) 11. b4 axb4 12. axb4 {[%mdl 64] [#] Discovered Attack} Rxa1 13. Qxa1 Na6 14. Qa3 $36 {[%mdl 2048] White has strong initiative.} h6 15. Be3 Nb8 16. c5 bxc5 17. bxc5 {Strongly threatening c6.} Re8 $2 {[#]} (17... c6 $16 {was called for.}) 18. c6 $18 g5 19. O-O Ng4 (19... Nxc6 $142 20. dxc6 Be6) 20. Ba7 {White is clearly winning.} Nxc6 21. dxc6 f5 22. Bxg4 fxg4 23. Nd5 Be6 24. Qa5 Bxd5 25. Qxd5+ Kh7 26. Rb1 Qe7 27. Nf1 Ra8 28. Rb7 Bf6 29. Bb8 {Accuracy: White = 100%, Black = 46%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.10"]
[White "De Haro, Martim Afonso Palma"]
[Black "Garcia Palermo, Carlos"]
[Result "0-1"]
[ECO "B10"]
[WhiteElo "1788"]
[BlackElo "2434"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,54,40,40,49,42,38,14,18,-27,0,0,0,0,0,-20,21,4,0,0,0,0,6,-13,-1,-12,0,-70,-36,-68,-47,-69,-70,-100,-89,-176,-180,-172,-172,-204,-182,-174,-154,-183,-171]} 1. e4 c6 2. Nf3 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg4 6. h3 Bxf3 7. Qxf3 Nf6 {B11: Caro-Kann: Two Knights Variation} 8. Bc4 e6 9. d3 Nbd7 {[#] The position is equal.} 10. Bb3 $146 ({Predecessor:} 10. Bf4 Nb6 11. Bb3 Nbd5 12. Bd2 Bd6 13. Ne4 Be7 14. O-O Qc7 15. Rfe1 O-O 16. d4 {0-1 (72) Laperuta,R (1566)-Stiegemeier,F (2013) Hebraica 2019}) 10... a5 {...a4 is the strong threat.} 11. a4 Bb4+ 12. Ke2 O-O 13. c3 Be7 14. Rd1 Ne5 15. Qe3 Ng6 16. Kf1 Nd5 17. Qe4 Qb6 $36 {[%mdl 2048] White is under pressure.} 18. Bc2 Rad8 19. Ne2 (19. d4 $11) 19... e5 (19... f5 $5 {[%cal Rf5e4]} 20. Qc4 (20. Qxe6+ Kh8 $17) 20... e5 $11) 20. Qc4 f5 21. Qb3 Qc7 22. Bd2 Kh8 23. c4 (23. Kg1 $17) 23... Nb4 $19 {Black is clearly better.} 24. Bxb4 Bxb4 ({Don't take} 24... axb4 25. a5 $17) 25. d4 e4 26. Kg1 Qe7 27. d5 Qe5 {Accuracy: White = 68%, Black = 85%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.11"]
[White "Roselli Mailhe, Bernardo"]
[Black "Silva Rosas, Natalia"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "2433"]
[BlackElo "1787"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,77,22,27,25,20,47,32,91,38,44,-7,45,28,94,83,86,48,57,56,50,55,129,72,200,228,302,247,247,247,247,247,248,247,245,251,251,216,223,216,333,343,337,345,347,331,304,253,414,409,558,560,519,532,521,491,599,690,828,805,1052,1009,29983,29984]} 1. d4 f5 2. Nf3 g6 3. g3 Nf6 4. Bg2 Bg7 5. O-O O-O 6. c4 d6 7. Nc3 Qe8 8. d5 c6 9. Nd4 c5 {A88: Dutch Defence: Leningrad System: 5 Nf3 0-0 6 0-0 d6 7 Nc3 c6.} 10. Ndb5 {[#] aiming for Nc7.} Na6 $146 ({Predecessor:} 10... Qd8 11. e4 a6 12. Na3 fxe4 13. Nxe4 Nxe4 14. Bxe4 Nd7 15. Qb3 Nf6 16. Bg2 Rb8 17. Bf4 {0-1 (44) Slaba,A (1882)-Hrubsa,M (1923) Slovakia 2018}) 11. a3 h6 (11... Bd7 $14) 12. f4 (12. e4 $16) 12... Qd8 $14 13. h3 ({White should try} 13. e4 $14) 13... Bd7 (13... Nb8 $11 14. a4 a6) 14. Kh2 Ne8 (14... Nb8 $11) 15. e4 $16 Nec7 16. e5 Nxb5 17. cxb5 Nc7 18. a4 Rb8 (18... b6 $14) 19. Re1 ({Better is} 19. e6) 19... dxe5 (19... b6 $16 {was called for.}) 20. fxe5 $18 f4 21. gxf4 Bf5 22. Be3 b6 23. Qf3 Qe8 24. Rad1 Qf7 25. Qg3 Kh8 26. Bc1 Rbd8 27. Re2 c4 (27... h5 $142 28. b3 Bh6) 28. Rd4 Bd3 29. Re1 Qf5 {[#]} 30. b3 $1 {[%cal Bb2b3,Bb3c4][%mdl 544]} Ne6 (30... cxb3 31. Rxd3) 31. Rxd3 {Played: Rd4xc4} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.12"]
[White "Boabaid, Jorge Alberto Duarde"]
[Black "Liascovich, Lucas"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "1786"]
[BlackElo "2425"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,62,-10,-7,0,0,0,0,-15,-17,-123,-137,-126,-135,-155,-168,-168,-177,-188,-191,-218,-211,-223,-207,-208,-224,-303,-263,-277,-254,-282,-258,-294,-274,-311,-312,-300,-297,-312,-304,-430,-425,-404,-367,-815,-803,-1019,-1021]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Ndb5 Bc5 7. Nd6+ Ke7 8. Nxc8+ Rxc8 9. Be2 a6 10. O-O {B45: Sicilian Four Knights.} Re8 {[#]} 11. Kh1 $146 ({Predecessor:} 11. Bg5 Kf8 12. Kh1 b5 13. f4 d6 14. f5 Bd4 15. fxe6 fxe6 16. Bh5 Re7 17. e5 Bxe5 {1-0 (33) Imeeva,A (2059)-Sirkova,D (2094) Batumi 2010}) 11... Bd4 12. f4 {And now e5 would win.The position is equal.} Bxc3 13. e5 {[#]} (13. bxc3 $11 Nxe4 14. Bf3) 13... Bxe5 $1 $17 14. fxe5 Nxe5 15. Bf4 d6 16. Rc1 Qb6 17. b3 Nd5 18. c4 Nxf4 19. Rxf4 Qe3 20. Rh4 h6 21. Rd4 Red8 22. Rc2 {[#]} b5 $1 23. Rcd2 (23. cxb5 Rxc2) 23... bxc4 24. bxc4 Qa3 25. h3 Qc5 26. Qe1 g5 27. Qg3 Rb8 28. Bh5 (28. Qe1 $142) 28... Rb1+ $19 29. Kh2 f5 30. Be2 $2 (30. Rd1) 30... Nc6 31. Rd1 Nxd4 {Accuracy: White = 51%, Black = 100%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.13"]
[White "Acosta, Pablo Ismael"]
[Black "Serafim Junior, Arnor"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2416"]
[BlackElo "1765"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,63,18,55,-4,32,42,16,-6,33,-44,110,106,114,119,114,96,95,89,92,98,68,77,66,75,162,131,166,171,166,166,202,186,207,194,355,357,349,349,506,497,623,628,616,451,600,623,614,595,631,627,607,349,785,0,521,-8]} 1. e4 c5 2. Nf3 e6 3. b3 Nf6 4. e5 Nd5 5. c4 Nb6 6. Nc3 {B40: Sicilian: 2...e6, Unusual lines.} ({Better is} 6. b4 $14) 6... d6 7. exd6 Bxd6 {[#]} 8. Ne4 $146 {The position is equal.} ({Predecessor:} 8. Bb2 O-O 9. Be2 e5 10. Ne4 Nc6 11. d3 Qc7 12. Nxd6 Qxd6 13. O-O f6 14. Qd2 {1-0 (51) Heinemann,E (2186)-Dan,E (2112) Germany 2011}) 8... Nc6 9. Ba3 ({White should try} 9. d4 $14 Be7 10. dxc5 Qxd1+ 11. Kxd1) 9... Qe7 $2 {[#]} (9... e5 $15) 10. d4 $16 {[%cal Rd4c5]} Nd7 11. Nxd6+ Qxd6 12. dxc5 Qc7 {[#] Hoping for ...Qa5+.} 13. Qd2 $36 {[%mdl 2048] Keeping Black busy.} O-O 14. Be2 Rd8 15. Qc3 Nf6 16. Bb2 Ne7 (16... e5 $16 {was necessary.}) 17. b4 a5 18. a3 Ng6 19. O-O Bd7 20. Ne5 Nxe5 21. Qxe5 Rac8 $2 (21... Qxe5 22. Bxe5 Rdc8) 22. Qxc7 $18 Rxc7 23. Rfd1 axb4 (23... Rcc8 {is a better defense.} 24. Be5 h6) 24. axb4 {[%cal Ba3b4,Bb4b5][%mdl 32]} Rcc8 25. Bf3 Bc6 26. b5 Bxf3 27. Rxd8+ Rxd8 28. gxf3 {KRB-KRN} h6 29. Ra7 Rc8 30. Ba3 Rd8 $2 (30... Rb8 31. Bb2 Kh7) 31. Bb2 $2 ({Only move:} 31. Rxb7 $18 Nh5 32. h3) 31... Nd7 $2 {[%mdl 8192]} (31... Rc8 $1 $11 {and Black has nothing to worry.}) 32. Ra3 $2 {[%mdl 32768] Accuracy: White = 70%, Black = 24%. . Loss on time!?} (32. Bd4 $18) 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.14"]
[White "Larrea, Daniela"]
[Black "Menna Barreto, Felipe Kubiaki"]
[Result "0-1"]
[ECO "A56"]
[WhiteElo "1757"]
[BlackElo "2395"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,56,45,41,38,5,9,0,30,19,26,-19,-2,-4,9,-43,-19,-75,-74,-73,-74,-98,-29,-47,18,-28,-18,-61,-43,-50,-52,-68,-68,-73,-24,-12,-22,-147,-141,-137,-102,-512,-496]} 1. d4 Nf6 2. c4 c5 3. d5 g6 4. Nc3 Bg7 5. e4 d6 6. Nf3 O-O 7. Be2 e6 8. O-O Re8 9. Bg5 h6 {E91: King's Indian: Classical: 6 Be2, unusual replies including 6...c5 and 6...Bg4.} 10. Bh4 g5 11. Bg3 exd5 {The position is equal.} 12. exd5 Nh5 $1 13. Nd2 Nxg3 14. fxg3 Nd7 {[#]} 15. Rc1 $146 ({White should try} 15. Nde4 $11 Qe7 16. Qc2) ({Predecessor:} 15. Bh5 Ne5 16. Nf3 Rf8 17. Nxe5 Bxe5 18. Qf3 f5 19. Kh1 g4 20. Qe3 Qg5 21. Qxg5+ hxg5 {0-1 (46) De Moura,B-Labussiere,Y (1876) Goiania 2018}) 15... Ne5 16. Nde4 (16. Bh5 $11 {remains equal.}) 16... f5 $17 17. Nf2 g4 18. b3 Ng6 (18... h5 $17) 19. Bd3 Bd4 (19... h5 $15) 20. Ne2 Be3 21. Rc2 Qg5 22. Kh1 Bd7 23. Rb2 Re7 24. Qb1 Rae8 25. Nd1 {[%cal Rd3f5]} Bd2 $36 {[%mdl 2048] Black has some pressure.} 26. Ng1 (26. Ndc3 $11) 26... Re1 {White must now prevent ...Rxf1.} 27. Qc2 Ba5 {And now ...Rxf1 would win.} 28. Be2 $2 {[%mdl 8192] [#]} (28. Rxe1 $17 {is a better chance.} Rxe1 29. Rb1) 28... R8xe2 $1 {[%mdl 512] Accuracy: White = 38%, Black = 78%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.15"]
[White "Mussanti, Diego"]
[Black "Martinez, Carlos Alejandro"]
[Result "1-0"]
[ECO "C14"]
[WhiteElo "2330"]
[BlackElo "2503"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,99,0,-19,34,39,55,38,61,46,70,62,79,69,52,35,85,80,215,170,234,215,337,226,228,227,376,386,391,405,391,402,400,393,365,299,396,395,385,370,487,501,518,513,477,461,421,359,484,488,506,478,662,662,657,659,648,641,849,842,824,825,1122,1103,5139,766,4512,5307,29972,29972,29983,29984,29984,29985,29985,29983,29986,29987,29987,29988]} 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. f4 a6 8. Nf3 c5 9. dxc5 Qxc5 10. Qd2 Nc6 11. O-O-O b5 12. Ne2 Bb7 {C14: French: Classical System: 4 Bg5 Be7 main line.} (12... O-O $11) 13. Ned4 $14 Rc8 14. Nxc6 Rxc6 {White is slightly better.} 15. Nd4 {[#]} Rc8 $146 ({Predecessor:} 15... Rc7 16. f5 Qe7 17. fxe6 fxe6 18. Qf4 Rf8 19. Qg3 Nc5 20. Bd3 Ne4 21. Bxe4 dxe4 {½-½ (44) Manet,E (2036)-Tatard,M (1953) France 2006}) 16. h4 b4 17. Rh3 O-O 18. Re3 Rfe8 19. h5 g6 (19... Qe7 $16) 20. Rh3 Nf8 (20... Rc7 {was necessary.} 21. hxg6 fxg6) 21. g4 Bc6 (21... Rc7 {was called for.} 22. hxg6 fxg6) 22. Re3 (22. Bxa6 Ra8 $14) 22... Bd7 23. f5 (23. Bxa6 Ra8 $11) 23... exf5 (23... g5 $142 24. h6 (24. Bxa6 Ra8 $11) 24... Qc7) 24. gxf5 $18 Bxf5 25. Nxf5 gxf5 26. Rg3+ Ng6 27. hxg6 fxg6 28. Qxd5+ Kg7 {[%csl Gc8][%cal Rc5c2] [#]} 29. Qxc5 Rxc5 30. Rd7+ Kg8 31. Bxa6 Rcxe5 32. Bc4+ Kh8 33. b3 R5e7 34. Rd4 Kg7 35. Bd3 Rf8 36. Rxb4 f4 37. Rg1 f3 38. Kd2 f2 39. Rf1 g5 40. Rg4 h6 41. a4 Re5 42. Rg2 h5 43. Rfxf2 Rxf2+ 44. Rxf2 {[%mdl 4096] Endgame KRB-KR} g4 45. Rf5 {White mates.} Rxf5 46. Bxf5 Kf6 {[#]} 47. Bxg4 $1 {[%mdl 64] Promotion} hxg4 48. Ke3 Kg5 49. Kf2 Kf4 50. a5 {Accuracy: White = 81%, Black = 38%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.16"]
[White "Vieira, Alexandre Letizio"]
[Black "Coppola, Claudio"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "1722"]
[BlackElo "2314"]
[Annotator "TA"]
[PlyCount "111"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,111,10,0,0,0,18,0,22,-10,8,0,5,0,8,-16,0,-13,0,0,0,0,42,30,84,0,2,-31,7,-19,-27,-25,-20,-82,-14,-20,-20,-20,-24,-26,29,24,30,19,99,23,27,0,0,0,0,0,13,0,0,-35,0,0,0,0,0,-41,-31,-31,-31,-33,-36,-43,-19,-23,0,-62,-61,-104,0,-124,-16,-16,-9,-8,0,-15,-9,-15,-8,-12,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Bf4 c5 3. e3 g6 4. c3 Bg7 5. Nd2 d5 6. Ngf3 O-O 7. Be2 b6 8. O-O Bb7 9. h3 Nc6 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} 10. Re1 Rc8 {[#]} 11. a4 $146 ({Predecessor:} 11. a3 Nd7 12. Qa4 a6 13. Rad1 b5 14. Qb3 c4 15. Qc2 f5 16. Bh2 e6 17. Kh1 {½-½ (69) Johnsen,O (1994)-Larsen,K (2254) Helsingor 2019}) 11... Nd7 12. Qb3 e5 13. dxe5 Ndxe5 14. Nxe5 Nxe5 15. Nf3 c4 16. Qd1 Nd7 17. Nd4 Nc5 18. Nb5 $1 a6 19. Nd6 Rc7 (19... Rb8 $11 {keeps the balance.}) 20. Nxb7 (20. Nxc4 $16 Re7 21. Nd2) 20... Rxb7 $11 21. Qc2 (21. e4 $5) 21... Qd7 22. Red1 Qe6 23. Bf3 Rd7 24. g4 (24. e4 $11) 24... b5 ({Black should try} 24... Be5 $17) 25. axb5 axb5 26. Ra5 Qb6 27. Ra3 Nd3 (27... Qb7 $142) 28. Rxd3 $1 cxd3 29. Qxd3 Qc5 (29... Qc6 $11 {remains equal.}) 30. Rb3 (30. Ra5 $16) 30... Qc4 31. Qxc4 (31. Qd1 {is more complex.} Qc6 32. Qf1 Rb7 33. Rb4 Rd8 34. Bg5) 31... bxc4 32. Rb5 Rfd8 33. Kf1 f6 34. h4 Bf8 35. Ke2 Kg7 36. g5 Be7 37. Bg4 f5 38. Bf3 (38. Be5+ {with more complications.} Kf7 39. Bf3 Ke6 40. Bd4 Ra8 41. Kf1) 38... Bd6 39. Bxd6 $1 Rxd6 $15 {[%mdl 4096] Endgame KRR-KRB} 40. b4 cxb3 41. Rxb3 Rc8 42. Rb7+ Kf8 43. Rxh7 (43. Kd3 $11) 43... Rxc3 44. h5 {[#]} Kg8 (44... d4 $1 $17 {White must now prevent ...d3+.} 45. Rh8+ Kf7 46. Rh7+ Kf8 47. Rh8+ Kf7 48. Rh7+ Kf8) 45. hxg6 {[#]} (45. Ra7 $11) 45... Rc2+ ({Resist} 45... Rxg6 46. Rd7 $15) ({Better is} 45... d4 $1 $17 {And now ...d3+ would win.} 46. Rb7 d3+ 47. Kf1 Rc1+ 48. Kg2 d2) 46. Kf1 $11 {The position is equal.} Rc1+ 47. Ke2 Rc2+ 48. Kf1 Rxg6 49. Rd7 $1 Rxg5 50. Bxd5+ Kf8 51. Be6 Ke8 {...Rc6 is the strong threat.} 52. Rd5 Rc1+ 53. Ke2 Rg2 54. Rxf5 Ke7 55. Bd5 Rh2 56. e4 {Accuracy: White = 72%, Black = 70%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.17"]
[White "De Dovitiis, Alejo"]
[Black "Ramirez Dominguez, Agustin"]
[Result "1-0"]
[ECO "C01"]
[WhiteElo "2314"]
[BlackElo "1894"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,62,10,14,-1,22,5,66,12,64,60,58,59,69,58,122,101,180,151,158,118,122,117,119,126,119,120,124,126,127,126,133,133,140,136,178,178,164,154,146,146,120,150,227,219,219,219,323,273,1415,1828,1679,769,932]} 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nf6 5. Bd3 Bd6 6. O-O O-O 7. c4 {C01: French: Exchange Variation.} c6 8. h3 Be6 (8... dxc4 $11 9. Bxc4 Na6) 9. Ng5 {[#]} (9. c5 $14 Bc7 10. Nc3) 9... dxc4 $146 (9... Bc8 $11) ({Predecessor:} 9... Nbd7 10. Re1 Re8 11. Nxe6 Rxe6 12. Rxe6 fxe6 13. Nc3 e5 14. cxd5 exd4 15. dxc6 bxc6 {1-0 (35) Torres Kuckel,R (2301)-Stricker,F (1779) Unna 2012}) 10. Nxe6 $14 fxe6 11. Bxc4 Nd5 12. Nc3 {[%cal Bb1c3,Bc3e4,Be4c5][%mdl 32]} Bf4 (12... Na6 $14) 13. Qg4 $36 {[%mdl 2048] [#] Black must now prevent Bxd5. White has strong initiative.} Qf6 (13... Bxc1 $16 {keeps fighting.} 14. Qxe6+ (14. Rfxc1 Rf6 $14) 14... Kh8 15. Raxc1 (15. Rfxc1 Nb6 $14) 15... Nf4) 14. Ne4 Qf7 15. Nc5 {Hoping for Bxf4.} Bxc1 16. Raxc1 Nd7 17. Qxe6 Nxc5 18. Qxf7+ Kxf7 19. dxc5 Rad8 20. Rfd1 Kf6 21. Rd3 Rfe8 22. Rcd1 a5 23. Bxd5 cxd5 24. Rxd5 Re1+ 25. Rxe1 Rxd5 $16 {[%mdl 4096] Endgame KR-KR} 26. Rc1 Ke5 (26... Ke7 $16 27. Rc3 Kd7) 27. c6 bxc6 28. Rxc6 Kd4 (28... Rd1+ $142 29. Kh2 a4) 29. b3 Rc5 $2 {[#]} (29... Rh5 30. Rc7 g6) 30. Rxc5 $18 Kxc5 31. a3 (31. g4 $142 Kd4 32. Kg2) 31... Kd5 {Accuracy: White = 80%, Black = 41%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.18"]
[White "Manteiga, Franco"]
[Black "Lopez Azambuja, Nicolas"]
[Result "0-1"]
[ECO "E20"]
[WhiteElo "1703"]
[BlackElo "2310"]
[Annotator "TA"]
[PlyCount "18"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,18,11,83,28,17,16,35,38,32,45,29]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 Nc6 5. e4 b6 (5... e5 $11 {remains equal.}) 6. Be3 {E20: Nimzo-Indian: 4 g3 and 4 f3} (6. Nge2 $16) 6... Bxc3+ $11 7. bxc3 Ba6 {[#]} 8. Bd3 $146 ({Predecessor:} 8. e5 Ng8 9. Bd3 Na5 10. Qe2 d6 11. f4 Qd7 12. Nf3 Ne7 13. Nd2 d5 14. O-O dxc4 15. Nxc4 Bxc4 16. Bxc4 Nxc4 17. Qxc4 {½-½ (42) Solozhenkina,E (2276)-Peycheva,G (2152) Porto Carras 2018}) 8... Na5 9. Qe2 d6 {[%mdl 32768] Loss on time!?} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.19"]
[White "Contin, Daniel"]
[Black "Osinaga, Eduardo"]
[Result "1-0"]
[ECO "B54"]
[WhiteElo "2267"]
[BlackElo "1697"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,79,59,54,75,50,60,65,61,52,66,61,54,54,55,59,54,36,155,29,37,28,132,140,135,144,140,141,148,102,97,75,129,62,114,126,115,113,136,139,166,163,141,46,320,320,457,453,604,592,567,381,327,243,225,214,316,301,358,359,374,342,520,508,29972,5895,29996,29997]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 e5 5. Bb5+ Bd7 6. Bxd7+ Qxd7 7. Ne2 Nf6 8. Nbc3 Be7 {B56: Classical Sicilian: Unusual Lines} 9. O-O O-O 10. Bg5 Nc6 {White is slightly better.} 11. Ng3 Nd4 12. Bxf6 Bxf6 13. Nd5 Bd8 14. c3 Ne6 {[#]} 15. Qg4 $146 ({Predecessor:} 15. Nf5 Kh8 16. Qd3 g6 17. Nfe3 Nc5 18. Qc2 f5 19. exf5 gxf5 20. f4 e4 21. Rad1 {0-1 (43) Rivara,M (1767)-Saffioti,M (1891) Genova 2014}) 15... Nc5 ({Black should try} 15... g6 $14) 16. Nf5 (16. Qxd7 $16 Nxd7 17. Nf5) 16... g6 $11 17. b4 $36 {[%mdl 2048] White fights for an advantage.} Kh8 (17... h5 $11 {keeps the balance.} 18. Qh3 Ne6) 18. bxc5 $16 {[#] And now Nfe3 would win.} gxf5 19. exf5 dxc5 20. Rad1 {Strongly threatening Nb6!} Qc6 21. Rd3 Rg8 22. Qe4 (22. Qc4 {is more complex.} Bg5 23. Rdd1 Rad8 24. Qe4 Rd6 25. c4) 22... f6 (22... c4 $142 23. Rg3 (23. Qxe5+ $2 f6 $19) 23... Rxg3 24. hxg3 f6) 23. Re1 (23. c4 $16) 23... Rg7 (23... c4 $14 24. Rh3 Rg7) 24. c4 Ba5 25. Ree3 Rag8 26. Rg3 Bd8 27. Rxg7 Rxg7 28. f4 ({Better is} 28. Nc3 $16 Qc8 29. Nd5) 28... Rg4 $2 {[%mdl 8192]} (28... Bc7 $1 $14) 29. Qe2 $18 Rg7 (29... e4 $142) 30. fxe5 fxe5 31. Qxe5 Bc7 32. Qe6 Qd6 33. Qxd6 Bxd6 {[%mdl 4096] Endgame KRB-KRN} 34. f6 Rf7 (34... Rg6 {keeps fighting.} 35. Re3 Rg8) 35. g4 h6 36. h4 Kh7 37. Kg2 Kg6 (37... Rf8 {was called for.} 38. Ne7 Rxf6) 38. h5+ Kg5 {[#]} (38... Kh7 $18 39. Re3 Kg8 40. Ne7+ Kh7) 39. Kh3 $1 {Threatening mate with Rf3.} Be5 40. Rf3 {Accuracy: White = 68%, Black = 33%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.20"]
[White "Nunez, Hiber"]
[Black "Michailov, Matias"]
[Result "*"]
[ECO "E91"]
[WhiteElo "1691"]
[BlackElo "2262"]
[Annotator "RC"]
[PlyCount "155"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:01]} g6 {[%emt 0:00:30]} 3. c4 {[%emt 0:00:09]} Bg7 {[%emt 0:00:17]} 4. Nc3 {[%emt 0:00:12]} O-O {[%emt 0:00:59]} 5. e4 {[%emt 0:00:11]} d6 {[%emt 0:00:13]} 6. Be2 {[%emt 0:00:06]} Qe8 {[%emt 0:00:55]} 7. O-O {[%emt 0:06:30]} e5 {[%emt 0:00:12]} 8. d5 {[%emt 0:05:47]} a5 {[%emt 0:00:26]} 9. b3 {[%emt 0:17:06]} Na6 {[%emt 0:02:23]} 10. a3 {[%emt 0:03:01]} Nc5 {[%emt 0:04:18]} 11. Nd2 {[%emt 0:16:53]} Bh6 {[%emt 0:02:56]} 12. Qc2 {[%emt 0:10:42]} Qe7 {[%emt 0:04:12]} 13. Rb1 {[%emt 0:03:18]} Ne8 {[%emt 0:17:45]} 14. b4 {[%emt 0:03:13]} axb4 {[%emt 0:00:45]} 15. axb4 {[%emt 0:00:22]} Na6 {[%emt 0:00:09]} 16. Qa2 {[%emt 0:04:32]} c6 {[%emt 0:09:04]} 17. Qb3 {[%emt 0:03:42]} c5 {[%emt 0:18:07]} 18. bxc5 {[%emt 0:03:36]} Nxc5 {[%emt 0:00:27]} 19. Qb4 {[%emt 0:02:36]} f5 {[%emt 0:01:09]} 20. f3 {[%emt 0:02:05]} Be3+ {[%emt 0:00:23]} 21. Kh1 {[%emt 0:01:00]} f4 {[%emt 0:00:44]} 22. Nb3 {[%emt 0:01:39]} Na6 {[%emt 0:05:02]} 23. Qa3 {[%emt 0:02:39]} Nac7 {[%emt 0:03:15]} 24. Qb4 {[%emt 0:00:22]} Na6 {[%emt 0:00:24]} 25. Qa3 {[%emt 0:03:00]} Ba7 {[%emt 0:03:58]} 26. Nb5 {[%emt 0:01:48]} Bb8 {[%emt 0:00:24]} 27. Bd2 {[%emt 0:01:19]} Nac7 {[%emt 0:00:18]} 28. Qb4 {[%emt 0:00:54]} Nxb5 {[%emt 0:00:53]} 29. cxb5 {[%emt 0:01:25]} Qh4 {[%emt 0:00:31]} 30. Rbc1 {[%emt 0:02:28]} Bd7 {[%emt 0:04:44]} 31. Na5 {[%emt 0:00:32]} g5 {[%emt 0:01:06]} 32. Be1 {[%emt 0:01:18]} Qh5 {[%emt 0:00:11]} 33. Nxb7 {[%emt 0:01:26]} Rf6 {[%emt 0:00:27]} 34. Bf2 {[%emt 0:01:00]} Rh6 {[%emt 0:05:16]} 35. Bg1 {[%emt 0:00:06]} Ra2 {[%emt 0:02:15]} 36. Bd1 {[%emt 0:01:59]} Bh3 {[%emt 0:05:00]} 37. Rc2 {[%emt 0:00:35]} Rxc2 {[%emt 0:03:42]} 38. Bxc2 {[%emt 0:00:03]} Bc8 {[%emt 0:00:14]} 39. Nd8 {[%emt 0:00:54]} Bc7 {[%emt 0:01:23]} 40. b6 {[%emt 0:00:37]} Bxd8 {[%emt 0:00:50]} 41. b7 {[%emt 0:00:04]} Bxb7 {[%emt 0:03:52]} 42. Qxb7 {[%emt 0:00:05]} Qf7 {[%emt 0:00:00]} 43. Qxf7+ {[%emt 0:00:00]} Kxf7 {[%emt 0:00:00]} 44. Rb1 {[%emt 0:00:00]} Rg6 {[%emt 0:00:00]} 45. Rb7+ {[%emt 0:00:00]} Be7 {[%emt 0:00:00]} 46. Bb6 {[%emt 0:00:00]} Kf8 {[%emt 0:00:00]} 47. Ba4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 48. Rb8+ {[%emt 0:00:00]} Kf7 {[%emt 0:00:00]} 49. Rb7 {[%emt 0:00:00]} Kf8 {[%emt 0:00:00]} 50. Bc6 {[%emt 0:00:00]} g4 {[%emt 0:00:00]} 51. Rb8+ {[%emt 0:00:00]} Kf7 {[%emt 0:00:00]} 52. Bd8 {[%emt 0:00:00]} Rg8 {[%emt 0:00:00]} 53. Bc7 {[%emt 0:00:00]} Rg6 {[%emt 0:00:00]} 54. Rb7 {[%emt 0:00:00]} Kf8 {[%emt 0:00:00]} 55. Rb2 {[%emt 0:01:26]} Kf7 {[%emt 0:00:00]} 56. Ba5 {[%emt 0:01:25]} Rg8 {[%emt 0:00:00]} 57. Rb7 {[%emt 0:01:26]} h6 {[%emt 0:00:00]} 58. Rc7 {[%emt 0:01:06]} h5 {[%emt 0:00:00]} 59. Rb7 {[%emt 0:01:40]} Rc8 {[%emt 0:00:59]} 60. Bb6 {[%emt 0:00:59]} Kf8 {[%emt 0:00:53]} 61. Ba7 {[%emt 0:01:26]} Kf7 {[%emt 0:01:44]} 62. Kg1 {[%emt 0:01:21]} g3 {[%emt 0:02:00]} 63. h3 {[%emt 0:00:37]} Ne8 {[%emt 0:04:25]} 64. Bb8 {[%emt 0:00:28]} Kf8 {[%emt 0:00:20]} 65. Kf1 {[%emt 0:00:19]} Nf6 {[%emt 0:00:32]} 66. Ba7 {[%emt 0:00:19]} Kf7 {[%emt 0:00:52]} 67. Ke2 {[%emt 0:00:14]} Kf8 {[%emt 0:00:22]} 68. Rb8 {[%emt 0:00:35]} Rxb8 {[%emt 0:00:08]} 69. Bxb8 {[%emt 0:00:04]} Kf7 {[%emt 0:00:20]} 70. Kd3 {[%emt 0:00:19]} Kf8 {[%emt 0:00:34]} 71. Kc4 {[%emt 0:00:17]} Kf7 {[%emt 0:00:21]} 72. Kb5 {[%emt 0:00:15]} Kf8 {[%emt 0:00:53]} 73. Bc7 {[%emt 0:00:17]} Kf7 {[%emt 0:00:21]} 74. Ka6 {[%emt 0:00:36]} Ne8 {[%emt 0:01:12]} 75. Bb6 {[%emt 0:01:45]} Kf8 {[%emt 0:00:22]} 76. Kb7 {[%emt 0:00:22]} Kf7 {[%emt 0:00:23]} 77. Bxe8+ {[%emt 0:00:39]} Kxe8 {[%emt 0:00:07]} 78. Kc6 {[%emt 0:00:11]} *

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.20"]
[White "Nunez, Hiber"]
[Black "Michailov, Matias"]
[Result "0-1"]
[ECO "E76"]
[WhiteElo "1691"]
[BlackElo "2262"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,50,39,36,106,90,94,91,89,75,100,43,55,56,53,45,57,29,85,-57,-17,-14,-21,-58,-28,-47,12,15,37,-172,-174,-343,-339,-714,-696,-1512,-1416]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 Na6 7. Bd3 e5 8. fxe5 dxe5 9. d5 $1 ({Worse is} 9. Nxe5 Qxd4 10. Nf3 Qb6 $17) 9... c5 {E76: King's Indian: Four Pawns Attack: Lines specific to 6 Nf3 move-order.} (9... c6 $14) 10. a3 ({Much worse is} 10. Nxe5 $6 Re8 $11) 10... Ne8 11. O-O Nd6 {[#] White is better.} 12. Qc2 $146 ({Predecessor:} 12. Bg5 f6 13. Bh4 Qd7 14. Rb1 b6 15. b4 Bb7 16. Bf2 Rfc8 17. Qb3 Bf8 18. Ne1 {1-0 (35) Jianu,V (2542)-Nesterets,A (2376) Satu Mare 2018}) 12... h6 13. Be3 (13. Bd2 $16) 13... f5 $1 $14 14. Bf2 f4 15. h3 g5 16. Nh2 h5 (16... b6 $11 {remains equal.}) 17. g4 (17. Qd1 $16) 17... fxg3 18. Bxg3 Bxh3 19. Rxf8+ Qxf8 20. Qe2 h4 (20... Qf7 $15) 21. Bf2 $11 Qf6 {...g4! is the strong threat.} 22. Be3 $2 {[#]} (22. Qh5 $1 $14) 22... g4 $1 $36 {[%mdl 2560] Black is on the roll.} 23. Nd1 $2 (23. Nxg4 {is a better defense.} Qg6 24. Kh2 Bxg4 25. Qg2) 23... g3 24. Nf3 $2 (24. Qh5 gxh2+ 25. Kxh2) 24... Bg4 {And now ...h3 would win.} 25. Kg2 Rf8 {Accuracy: White = 38%, Black = 69%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.21"]
[White "Amura, Claudia"]
[Black "Munoz Rozas, Diego"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2245"]
[BlackElo "1685"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,73,25,25,15,29,13,16,16,81,66,96,97,132,81,123,123,156,116,131,77,113,114,158,172,168,154,185,163,156,166,174,135,160,130,171,159,180,178,170,148,181,178,175,168,242,160,157,155,395,397,620,610,661,617,594,583,758,739,4802,3149,5904,6134,5237,5154,5110,4810]} 1. d4 Nf6 2. Bg5 Ne4 3. Bf4 d5 4. e3 e6 5. Nd2 Nxd2 6. Qxd2 {A45: Trompowsky Attack} Bd6 7. Bg3 c5 8. dxc5 {[#] The position is equal.} Bxg3 $146 (8... Bxc5 $11 9. c4 O-O) ({Predecessor:} 8... Bxc5 9. Qc3 Be7 10. Nf3 O-O 11. Be2 Nc6 12. O-O Bd7 13. Ne5 Nxe5 14. Bxe5 Rc8 {½-½ (63) Druska,J (2395)-Plachetka,J (2373) Bardejov 2014}) 9. hxg3 $16 Nc6 10. Nf3 Qf6 11. Rb1 ({Better is} 11. O-O-O) 11... Bd7 12. b4 Rd8 13. Be2 O-O 14. Bd3 (14. c4 $142) 14... g6 15. e4 Ne5 {[#]} 16. Qh6 $1 {[%csl Gh1][%cal Rh6h7]} Nxf3+ 17. gxf3 {[%csl Gh1][%cal Rh6h7]} Qc3+ 18. Kf1 {[%csl Gh1][%cal Rh6h7]} Qg7 19. exd5 $40 {[%mdl 128] White wants a kill.} exd5 20. Qxg7+ Kxg7 21. Rh4 Rfe8 22. Rd4 Re5 23. Kg1 Rde8 24. Kg2 Rh5 25. g4 Rhe5 26. Kg3 g5 (26... a6 $142 27. c4 dxc4) 27. f4 gxf4+ 28. Kxf4 f5 $2 (28... h5 $16) 29. Rh1 $18 Re4+ (29... R8e7 $142 30. gxf5 a6) 30. Bxe4 {White is clearly winning.} fxe4 31. Rxd5 {[%mdl 4096] Endgame KRR-KRB} Rf8+ 32. Kg5 Bc6 33. Re5 Rxf2 {[#]} 34. b5 $1 Bxb5 35. Re7+ {[%mdl 64] Double Attack} Kf8 36. Rxb7 {[%mdl 64] Double Attack} a6 37. Rhxh7 {Accuracy: White = 82%, Black = 30%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.22"]
[White "Campora, Edgardo"]
[Black "Larrea, Manuel"]
[Result "0-1"]
[ECO "B59"]
[WhiteElo "1676"]
[BlackElo "2243"]
[Annotator "TA"]
[PlyCount "30"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,30,27,31,23,11,-6,0,-20,-26,-18,-21,-395,-389]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3 Be7 8. Be3 O-O 9. O-O a5 10. Nd2 Be6 11. Nc4 {B59: Classical Sicilian: 6 Be2 e5 7 Nb3.} b5 12. Nxb5 {[%cal Rc4d6]} Nxe4 13. f3 Nf6 14. Ncxd6 Nd5 {[#]} 15. Nc4 $146 {[%mdl 8192] [#]} (15. Bf2 $11) ({Predecessor:} 15. Bf2 Bxd6 16. Nxd6 Qxd6 17. c4 Rfd8 18. cxd5 Bxd5 19. Qa4 Qe6 20. Rfe1 Nd4 21. Bxd4 exd4 22. Qxd4 Bxa2 23. Qc5 Qd5 24. Qxd5 {½-½ (24) Cuijpers,F (2500)-Nijboer,F (2598) Netherlands 2007}) 15... Nxe3 {[%mdl 64] Discovered Attack} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.23"]
[White "Carbone, Diego"]
[Black "Lanaro, Emilio"]
[Result "1-0"]
[ECO "E62"]
[WhiteElo "2239"]
[BlackElo "1671"]
[Annotator "TA"]
[PlyCount "109"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,108,59,54,51,53,48,50,26,73,62,116,87,95,71,81,84,66,58,58,18,80,50,53,25,57,52,56,58,47,45,40,38,35,0,0,0,435,426,394,0,0,0,0,-60,-75,-159,-153,-191,-195,-224,-99,-84,-33,-39,0,-4,-4,-124,0,0,0,0,113,96,88,61,64,63,69,73,83,78,92,52,55,0,43,42,59,43,44,14,13,18,106,-224,91,36,157,147,29998,29999,29999]} 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nc6 7. O-O Bd7 8. e4 e5 9. d5 Ne7 10. Ne1 {E62: King's Indian: Fianchetto: 6...c6 and Panno Variation (6...Nc6) without ...a6.} Ne8 11. Nd3 f5 12. f4 {[#] White is slightly better.} fxe4 $146 ({Predecessor:} 12... exf4 13. Bxf4 fxe4 14. Nxe4 Nf6 15. Nxf6+ Bxf6 16. Qd2 Nf5 17. g4 Nh4 18. Bh6 Rf7 {1-0 (28) Vareille,F (2381)-Deslandes,P (2282) France 2010}) 13. Nxe4 Nf6 (13... exf4 $14 14. Nxf4 Nf5) 14. fxe5 Nxe4 15. Rxf8+ Qxf8 16. Bxe4 dxe5 17. Nc5 Bf5 18. Bg2 Nc8 (18... Nc6 $11 19. d6 (19. Nxb7 Nd4 $11) 19... Nd4) 19. Be3 Nd6 20. Qe2 Qc8 21. Ne6 $36 {[%mdl 2048] White is more active.} Bxe6 22. dxe6 c6 23. Bh3 $1 {Strongly threatening Rd1.} Nf5 $1 24. e7 Qe6 25. Bc5 b6 26. Rd1 Re8 $2 {[%mdl 8192] [#]} (26... Bf6 $11 {and Black stays safe.} 27. Bxf5 Qxf5) 27. Rd8 $1 $18 {[%mdl 512]} Kf7 28. Rd6 $2 (28. Bxf5 $1 $18 Qxf5 29. Qd1 bxc5 30. Rxe8) 28... Qxe7 $11 29. Bxf5 $1 gxf5 30. Qh5+ (30. Bb4 $11) 30... Kg8 $15 31. Be3 (31. Bf2 $142) 31... Rf8 $17 ({But not} 31... Qxd6 32. Qxe8+ Bf8 33. Kg2 $15) 32. Qd1 f4 33. Bf2 fxg3 (33... e4 $1 $19 {[%cal Re4e3]} 34. gxf4 e3) 34. Bxg3 e4 ({Black should try} 34... Qg5 $17 {...h5 is the strong threat.} 35. b3 h5) 35. Rxc6 $15 e3 36. Rc7 Qf6 37. Qe2 (37. Rxa7 $11 Kh8 38. Rd7) 37... Qf3 (37... Qf5 $17 {And now ...Be5 would win.} 38. c5 Kh8 39. cxb6 axb6) 38. Qxf3 $11 Rxf3 {[%mdl 4096] Endgame KRB-KRB} 39. Kg2 Rf7 (39... Rf5 $11 {remains equal.}) 40. Rc8+ Bf8 41. Re8 Rd7 42. Be1 Kf7 43. Rxe3 Rd4 44. b3 Bc5 45. Rf3+ Ke6 46. Bc3 (46. a4 $14) 46... Rd1 47. Rf6+ Ke7 48. Rh6 Rc1 $1 {[%cal Rc1c2]} 49. Rxh7+ Ke6 50. Rh6+ Kf5 (50... Kd7 $1 $11) 51. Bg7 $2 {[%mdl 8192]} (51. Rf6+ $16 {keeps the pressure on.} Ke4 52. Re6+ Kf5 53. Rf6+ Ke4 54. Re6+ Kf5 55. Rf6+) 51... Rc2+ $2 {[#]} (51... Rg1+ $19 52. Kf3 Rxg7 53. Rh5+ Kg6) 52. Kg3 ({White should play} 52. Kf3 $1 $16) 52... Rxa2 {[#]} (52... Be7 $1 $14) 53. Rf6+ $1 $16 Kg5 $2 {[%mdl 8192]} (53... Ke4 $16) 54. h4+ Kh5 55. Rh6# {Accuracy: White = 57%, Black = 51%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.24"]
[White "Moratorio, Alberto"]
[Black "Muniz, Rafael"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "1661"]
[BlackElo "2232"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,54,21,-3,20,25,49,10,22,16,53,37,26,30,30,17,39,35,27,6,34,0,0,-34,-29,-25,9,-65,-62,-73,-52,-137,-143,-366,-325,-435,-333,-428,-443,-447,-373]} 1. d4 Nf6 2. Bf4 d5 3. e3 e6 4. Nf3 c5 5. c3 Nc6 6. Nbd2 Bd6 7. Bg3 Bxg3 8. hxg3 Qd6 9. Bd3 Bd7 {has lost popularity (9...e5). D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} 10. Qe2 h6 11. dxc5 Qxc5 {The position is equal.} 12. e4 {[#]} O-O-O $146 ({Predecessor:} 12... dxe4 13. Nxe4 Nxe4 14. Bxe4 Qa5 15. a4 Qc7 16. O-O O-O 17. b4 Rae8 18. g4 e5 {1-0 (43) Rabrenovic,V (2331)-Abhilash,R (2252) Djenovici 2019}) 13. e5 Ng4 14. Nb3 Qb6 15. Nbd4 f6 {[%cal Rc6e5]} 16. Nxc6 bxc6 17. Rh4 h5 18. exf6 gxf6 19. a4 e5 20. a5 Qc5 21. Nd2 ({White should try} 21. Bg6 $11) 21... e4 $1 $15 {[%cal Re4d3]} 22. Ba6+ Kb8 23. Ra4 {[#]} (23. Nf1 $15) 23... Ka8 $1 $17 {Hoping for ...e3.} 24. Nb3 $2 (24. Nf1 $17 {only move.}) 24... Qd6 $19 25. Nd4 {Now Rb4 and White clings on.} Rb8 ({Less strong is} 25... c5 26. Nb5 $19) 26. Ra3 f5 27. b4 {[#]} c5 {Played: Rb8xb4} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.25"]
[White "Shtemler, Lavi"]
[Black "Moreno, Nelson"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2199"]
[BlackElo "1656"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,55,18,0,0,0,11,0,2,2,24,0,97,93,191,191,191,194,191,167,164,168,172,143,122,111,106,0,110,125,123,73,219,225,320,318,670,663,639,667]} 1. Nf3 Nf6 2. g3 g6 3. c4 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. Bg2 Nxc3 7. bxc3 c5 8. Rb1 O-O 9. O-O Nc6 10. Qa4 Qa5 {A34: Symmetrical English: 2 Nc3, lines with ...d5.} 11. Qc4 {[#]} Rb8 $146 ({Predecessor:} 11... b6 12. Ng5 Bb7 13. Bxc6 Bxc6 14. Ne6 Rfc8 15. Nxg7 Kxg7 16. d3 Rd8 17. f3 Rd6 18. Qb3 f6 19. g4 Rad8 20. Bf4 {1-0 (20) Bellmann,H (2476)-Scheuermann,B (2427) ICCF email 2011}) 12. Rb5 Be6 {The position is equal.} 13. Qxc5 Qxa2 14. Ng5 a6 (14... Bd7 $11) 15. Rb2 $16 Qa5 (15... Qc4 $16 16. Nxe6 Qxe6) 16. Nxe6 $18 fxe6 17. Qc4 $1 Nd8 18. d4 Kh8 19. Bf4 e5 20. Ra2 Rc8 21. Qxc8 Qxa2 22. dxe5 (22. Bxe5 $16 {Threatens to win with Qc7.} Bxe5 23. dxe5) 22... Qxe2 (22... Ne6 $11 {remains equal.} 23. Qxb7 Nxf4 24. gxf4 Qxe2) 23. Qd7 $36 {[%mdl 2048] White is in control.} e6 24. Qe7 Qb5 {[#]} (24... Nf7 $16 {keeps fighting.}) 25. Rd1 $1 $18 {[%cal Rd1d8]} Qe8 {[#]} (25... Nf7 $142 26. Rd7 (26. Bxb7 Qe8 $18) (26. Qxb7 Bxe5 27. c4 Qxb7 $16) (26. Qxe6 Qe2 $14) 26... b6) 26. Qc7 $1 {And now Rd7 would win.} Qf7 $2 (26... Nf7 27. Rd7 (27. Qxb7 Nxe5 28. Qxa6 g5 $18) (27. Bxb7 g5 $16) 27... g5) 27. Qxd8 Rxd8 28. Rxd8+ {Accuracy: White = 87%, Black = 41%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.26"]
[White "De Cuadro, Dionisio"]
[Black "El Ters, Antouan"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "1650"]
[BlackElo "2189"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,78,0,0,0,1,-8,-3,-20,-18,-29,11,0,0,-19,-12,-19,-10,-34,-15,-45,-53,-53,-53,-56,-44,-58,-3,-65,-37,-112,-101,-164,-171,-149,-140,-210,-194,-258,-240,-256,-249,-248,-237,-278,-282,-277,-255,-259,-225,-314,-322,-312,-301,-418,-443,-444,-447,-417,-417,-775,-39,-41,-47,-162,-160,-6154,-5831,-5722,-5735,-5406,-5181]} 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. d3 d5 5. O-O Nc6 6. Re1 {A07: Réti Opening: New York and Capablanca Systems.} O-O {[#]} 7. Bg5 $146 ({Predecessor:} 7. Nbd2 e5 8. e4 Re8 9. c3 a5 10. Qc2 h6 11. b3 Bg4 12. a3 Qd7 13. Bb2 Rad8 14. b4 dxe4 15. dxe4 Nh7 16. Nc4 axb4 17. axb4 {1-0 (33) Onischuk,V (2637)-Grinev,V (2409) Zhitomir 2017}) 7... h6 8. Bxf6 {The position is equal.} Bxf6 9. c3 Bg4 10. Nbd2 Qd7 11. Nb3 b6 12. Qd2 Bg7 13. Rad1 Rad8 $36 {[%mdl 2048] Black is pushing.} (13... e5 {keeps more tension.} 14. d4 e4 15. Ne5 Nxe5 16. dxe5 Rad8) 14. e4 dxe4 15. dxe4 Qxd2 16. Rxd2 Rxd2 17. Nfxd2 Rd8 (17... a5 $15) 18. h3 (18. f4 $11) 18... Be6 19. Re2 (19. f4 $15) 19... a5 $17 20. f4 {[#]} (20. a4 $17 {was called for.}) 20... a4 $1 $19 {[%cal Ra4b3]} 21. Nc1 {[#]} a3 $1 {[%mdl 512]} 22. bxa3 (22. Ndb3 $17 {might work better.}) 22... Bxc3 23. Ncb3 (23. Ndb3 $142) 23... Nd4 24. Nxd4 Bxd4+ 25. Kh2 Bc5 ({Don't do} 25... Bxa2 26. Nf3 $17) 26. Nb3 Bxa3 27. Rc2 c5 28. Bf1 Rd1 29. Kg2 {[#]} Bxh3+ $1 {[%mdl 576] Deflection} 30. Kxh3 {aiming for Be2.} Rxf1 {[%mdl 4096] Endgame KRB-KRN} 31. Rd2 c4 32. Kg2 Re1 ({Inferior is} 32... cxb3 33. Kxf1 b2 34. Rd1 $11) 33. Nd4 {Black should prevent Nc2.} Rxe4 {Strongly threatening ...c3.} 34. Kf3 (34. Ne2 $142) 34... Rxd4 $2 (34... c3 $19 35. Rc2 Rxd4 36. Rxc3 Bc5) 35. Rxd4 $15 b5 36. Ke4 (36. Rd5 $15) 36... f5+ $19 37. Kd5 $2 (37. Kf3 $17) 37... c3 {Black is clearly winning.} 38. Rd3 c2 39. Rc3 c1=Q {Accuracy: White = 41%, Black = 77%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.27"]
[White "Carvalho, Guillermo"]
[Black "Reolon, Victor"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "2187"]
[BlackElo "1644"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,67,0,40,26,49,40,89,38,90,85,133,127,127,127,132,135,130,119,122,123,124,120,129,125,137,133,138,156,127,118,138,122,113,87,175,172,213,208,246,244,251,230,261,246,508,508,608,578,763,667,655,629,651,635,833,818,795,601,595,600]} 1. d4 e6 2. Nc3 d5 3. Bf4 c6 4. e3 Nf6 5. Bd3 {[#]} g6 $146 ({Predecessor:} 5... Bd6 6. Qf3 O-O 7. g4 Bxf4 8. Qxf4 b6 9. Nf3 Ba6 10. Ne5 Bxd3 11. cxd3 Nfd7 12. g5 {0-1 (31) Pershin,D (2400)-Kryakvin,D (2588) St Petersburg 2018}) 6. Nf3 {D00: 1 d4 d5: Unusual lines.} Bg7 7. h4 O-O 8. Qd2 (8. h5 $16) 8... Qa5 ({Black should try} 8... Qe7 $14) 9. Bd6 Rd8 {[#]} 10. b4 $1 {[%cal Rb4a5]} Qa3 11. Be7 Re8 {[#]} 12. Bxf6 $1 Bxf6 13. Rb1 {And now Rb3 would win.} b5 14. O-O Nd7 15. Rb3 Qa6 {[#]} 16. a4 $1 $36 {[%mdl 2560] Black is under strong pressure.} Qb6 (16... bxa4 17. Bxa6) 17. axb5 cxb5 {Black wants to play ...a6.} 18. Bxb5 Rd8 19. Be2 Bb7 20. Ra1 e5 21. Ra5 exd4 (21... e4 $16 {was necessary.}) 22. exd4 $18 Nf8 23. Na4 Qd6 24. Nc5 Bc8 25. Rba3 Qe7 26. g3 Re8 $2 (26... a6 27. Bxa6 Bg4) 27. Bb5 {White is clearly winning.} Ne6 28. Bxe8 {Played: Bb5-c6} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.28"]
[White "Labrador Avendano, Angie Jhoana"]
[Black "Benoit, Rodrigo"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "1638"]
[BlackElo "2170"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,70,16,35,36,50,9,16,11,21,27,48,39,39,39,37,24,29,-51,-52,-51,-50,-46,-46,-49,-39,-40,-39,-35,-27,-37,-33,-48,-31,-49,-27,-22,0,-48,0,0,0,12,27,0,0,0,58,21,37,0,58,58,58,58,58,0,0,0,58,0,0,0,14]} 1. d4 Nf6 2. Bf4 d5 3. Nf3 c6 4. e3 Bf5 5. Nbd2 h6 6. c4 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} e6 7. Be2 (7. Qb3 $5 {[%cal Rb3b7]} Qb6 8. c5 Qxb3 9. Nxb3 $14) 7... Be7 8. O-O O-O 9. Qb3 Qb6 {[#]} 10. c5 $146 ({Predecessor:} 10. Qc3 dxc4 11. Nxc4 Qa6 12. Qe1 Qa4 13. Nd6 Bxd6 14. Bxd6 Re8 15. b3 {1-0 (15) Wijesurija,G (2183)-Al Mutwae,H Aden 2002}) 10... Qxb3 11. axb3 Nbd7 12. Rfc1 Nh5 13. Bg3 (13. Be5 $11) 13... Nxg3 $15 14. hxg3 Rfe8 15. b4 a6 16. Kf1 Bf8 17. Rc3 Rac8 18. Nh4 Bh7 19. f4 g5 20. Nhf3 $1 f6 21. Bd3 Bg7 22. Bxh7+ Kxh7 23. Kf2 Kg6 (23... g4 $15 24. Ng1 f5) 24. g4 $11 f5 25. gxf5+ exf5 26. g3 Bf6 27. Rcc1 Nf8 ({Better is} 27... h5 $11) 28. Re1 Ne6 29. Nb3 g4 (29... h5 $11) 30. Ne5+ $14 Bxe5 31. dxe5 Rc7 32. Nd4 (32. Ke2 $14) 32... h5 $11 33. Rh1 Rh7 ({Black should play} 33... Nxd4 $11 34. exd4 Rb8) 34. Rh4 Nxd4 35. exd4 Rb8 {Accuracy: White = 66%, Black = 85%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.29"]
[White "Vazquez, Facundo"]
[Black "Vassallo, Julio"]
[Result "1-0"]
[ECO "A59"]
[WhiteElo "2155"]
[BlackElo "1630"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,101,84,60,105,105,105,104,103,104,93,80,83,90,93,76,81,75,115,106,136,137,174,160,209,137,131,137,137,97,97,97,103,91,124,102,94,121,138,70,154,145,167,175,161,168,206,205,205,202,213,198,209,206,208,193,197,179,211,184,256,248,392,410,455,427,607,592,1502,1422,1454,1408,1299,1329,1653,1586,2116,2043,1377,1215]} 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 d6 7. e4 Bxf1 8. Kxf1 g6 9. g3 Bg7 10. Kg2 O-O 11. Nf3 Nbd7 12. a4 Qb6 13. Qc2 $1 {[%mdl 4] is recently more successful than 13.Qe2.} Rfb8 {A59: Benko/Volga Gambit: White castles by hand.} 14. Nb5 Ne8 15. Bd2 Nc7 {White is better.} 16. Nxc7 Qxc7 17. Rab1 Qa7 18. b3 Qa6 19. Rhc1 Rb7 {[#]} 20. Bg5 $146 ({Predecessor:} 20. h4 h6 21. Re1 c4 22. bxc4 Rxb1 23. Rxb1 Qxa4 24. Qxa4 Rxa4 25. Rb4 Ra2 26. Rb7 {½-½ (37) Diermair,A (2461)-Spindelboeck,G (2246) Bad Gleichenberg 2014}) 20... Nf6 21. Nd2 Rab8 22. Nc4 h6 23. Bd2 Nd7 24. Bc3 Bxc3 25. Qxc3 Rb4 26. Qe3 Nb6 {[%cal Rb6c4]} 27. Nd2 Kg7 28. h4 Nd7 29. h5 Ne5 30. hxg6 fxg6 31. Rh1 (31. f4 $16 Ng4 32. Qc3+ Rd4 33. Nc4) 31... Rh8 (31... h5 $14) 32. f4 $16 Qd3 33. Qxd3 Nxd3 34. Kf3 {Hoping for Ke3.} Rd4 35. Nc4 Nb4 36. Rhd1 Nc2 37. Rxd4 Nxd4+ $18 {[%mdl 4096] Endgame KRN-KRN} 38. Ke3 Nc2+ 39. Kd2 Nb4 40. Re1 Rd8 41. Nb2 h5 (41... g5 {might work better.} 42. fxg5 hxg5) 42. Nd3 Rb8 (42... Na6 {keeps fighting.} 43. a5 Rb8) 43. Nxb4 Rxb4 {KR-KR} 44. Kc3 {White is clearly winning.} Kf7 (44... g5 $142 45. fxg5 Kg6) 45. a5 {[%cal Ba4a5,Ba5a6,Ba6a7][%mdl 32]} e6 46. a6 Rb8 47. a7 Ra8 48. Ra1 Ke7 49. Kc4 exd5+ 50. Kxd5 Kd7 51. Ra6 {Accuracy: White = 83%, Black = 48%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.30"]
[White "Bon, Charles"]
[Black "Trois, Francisco R.T."]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "1614"]
[BlackElo "2141"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,62,-1,-3,-80,-84,-150,-145,-166,-163,-180,-174,-189,-158,-191,-188,-227,-239,-243,-227,-234,-234,-277,-276,-303,-270,-361,-347,-406,-404,-619,-658,-622,-656,-655,-652,-643,-633,-671,-660,-715,-668,-882,-857,-830,-836,-1217,-1215,-1151,-1128,-2572,-2578,-2207,-1690,-1566,-1480]} 1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c4 Bg4 5. Be3 Bxf3 6. Qxf3 {A41: 1 d4 d6: Tartakower System and Modern Defence.} (6. gxf3 $11 c5 7. Nc3) 6... c5 $1 $17 7. Qd1 ({White should play} 7. e5) 7... Nc6 {[%cal Bb8c6,Bc6e5,Be5d3][%mdl 32] [#]} 8. Na3 $146 {Black is clearly better.} ({Predecessor:} 8. dxc5 Bxb2 9. Nd2 Bxa1 10. Qxa1 Nf6 11. cxd6 Qxd6 12. c5 Qc7 13. Be2 O-O 14. O-O {0-1 (73) Brameyer,H (2290)-Kauschmann,H (2215) Berlin 1997}) 8... cxd4 9. Bd2 Nf6 10. Bd3 Qb6 11. Qb3 Ne5 12. Qxb6 Nxd3+ 13. Ke2 axb6 14. Kxd3 Nd7 15. Nb5 {[#] And now Nc7+ would win.} Nc5+ 16. Kc2 Kd7 17. f3 Ra4 18. b3 d3+ {[%mdl 64] Discovered Attack} 19. Kb1 {[#]} (19. Kd1 $142 Nxb3 {[%mdl 64] Pin} 20. Rb1 Nxd2 21. Kxd2) 19... Nxb3 $1 $19 {[%mdl 576] Double Attack, Pin. Black is clearly winning.} 20. Bc3 (20. axb3 Rxa1#) 20... Bxc3 21. Nxc3 Rxc4 22. axb3 Rxc3 {[%mdl 4096] Endgame KRR-KRR} 23. Ra3 Rhc8 {aiming for ...d2.} 24. Rd1 b5 {[%cal Bb6b5,Bb5b4][%mdl 32]} 25. Ra7 Rxb3+ 26. Ka2 Rcc3 27. Rxb7+ Ke6 28. Ra7 b4 29. Ra5 Ra3+ 30. Rxa3 Rxa3+ 31. Kb2 Ke5 {Accuracy: White = 31%, Black = 87%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.31"]
[White "Dominguez, Facundo"]
[Black "Pelaez, Diego"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2135"]
[BlackElo "1607"]
[Annotator "TA"]
[PlyCount "39"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,39,68,29,47,42,75,30,37,33,54,66,96,91,119,134,189,186,459,463,817,773,743,466,452,472,484,485,2391,2314,2494,2431]} 1. e4 g6 2. d4 Bg7 3. Nc3 a6 4. a4 d6 5. Be3 b6 6. Bc4 e6 {B06: Modern Defence.} 7. Nf3 Bb7 8. O-O Nd7 {White has an edge.} 9. Qd2 h6 10. h3 c5 11. Rad1 $36 {[%mdl 2048] [#] White is really pushing.} Qc7 $146 {next ...cxd4 is good for Black.} ({Predecessor:} 11... Ne7 12. Rfe1 g5 13. Qe2 Qc7 14. Rd2 Ng6 15. Red1 Nf6 16. dxc5 dxc5 17. Nxg5 hxg5 18. Bxg5 {1-0 (46) Zatloukal,P (2090)-Belunek,V (2277) Valasska Bystrice 2009}) 12. dxc5 dxc5 (12... bxc5 $16 {was necessary.} 13. Qxd6 Qxd6 14. Rxd6 Bxc3) 13. Bf4 $18 Qc6 $2 (13... Qd8 14. Qe2 Ne7) 14. Nb5 {[#] And now Nc7+ would win.White is clearly winning.} Rd8 (14... Ngf6 $142 15. Nc7+ {[%mdl 64] Double Attack} Kf8 16. Nxa8 Bxa8 17. Bxa6 Qxe4) 15. Nd6+ Kf8 16. Nxb7 Qxb7 17. Qd6+ Ke8 18. Ne5 Ngf6 {[#]} (18... Bxe5 $142 19. Bxe5 Rh7) 19. Bxe6 $1 {[%csl Ge5][%cal Re6f7][%mdl 512]} Rf8 (19... fxe6 20. Qxe6+) 20. Nc6 {Accuracy: White = 77%, Black = 29%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.08"]
[Round "1.32"]
[White "Romero, Robert"]
[Black "Curi, Gabriel"]
[Result "0-1"]
[ECO "D43"]
[WhiteElo "1601"]
[BlackElo "2132"]
[Annotator "TA"]
[PlyCount "44"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,60,-32,-34,-49,-59,-77,-99,-90,-42,-54,-13,-109,-105,-106,-110,-145,-135,-138,-139,-153,-148,-163,-154,-227,-217,-333,-332,-328,-341,-337,-219,-246,-272,-248,-271,-268,-249,-411,-372,-381,-363,-839,-847,-946,-936,-998,-995,-992,-986,-1337,-1289,-5791,-5098]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. a3 dxc4 6. e3 {D43: Semi-Slav: 5 Bg5 h6.} b5 7. Be2 Bb7 8. O-O {Black is better.} Nbd7 {[#]} 9. e4 $146 ({Predecessor:} 9. b3 cxb3 10. Qxb3 Be7 11. Rd1 O-O 12. Bb2 Qb6 13. Rac1 a6 14. Qc2 c5 15. Ne5 cxd4 16. Nxd7 Nxd7 17. Rxd4 {½-½ (50) Paar,J (1950)-Glitz,M (1999) Bayern 2017}) 9... Be7 10. e5 (10. b3 $1 $11 {keeps the balance.}) 10... Nd5 $17 11. Nxd5 cxd5 12. Bf4 O-O 13. Qd2 a5 14. Ng5 b4 15. Bg4 Nb6 {And now ...c3! would win.} 16. h4 (16. axb4 $17 {was worth a try.} axb4 17. Bxe6) 16... h6 $19 17. Nxe6 (17. Nh3 {is a better defense.}) 17... fxe6 18. Bxe6+ Kh8 {Threatens to win with ...c3.} 19. Bxh6 Bc8 20. Bxc8 Rxc8 (20... Qxc8 21. Bg5 $17) 21. Bg5 c3 22. bxc3 bxc3 {Played: Nb6-c4} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.1"]
[White "Carvalho, Guillermo"]
[Black "Delgado Ramirez, Neuris"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "2187"]
[BlackElo "2634"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,76,4,11,8,16,17,22,13,37,25,25,5,19,28,20,-18,-8,-30,-38,-34,-34,-43,-28,-47,-57,-64,-21,-20,-23,-58,-33,-56,-50,-51,0,-11,16,-39,-7,-25,27,-126,-115,-128,-151,-175,-178,-355,-344,-499,-246,-466,-117,-110,-111,-110,-109,-103,-95,-233,-229,-1104,-1092,-1256,-1229,-1305,-1326,-1315,-1312]} 1. d4 Nf6 2. Nc3 d5 3. Bf4 c6 4. e3 Bf5 5. f3 h5 6. Bd3 {D00: 1 d4 d5: Unusual lines.} Bxd3 7. Qxd3 e6 8. Nge2 {[#] The position is equal.} Na6 $146 ({Predecessor:} 8... Bd6 9. O-O-O Bxf4 10. Nxf4 g5 11. Nfe2 Nbd7 12. h4 g4 13. e4 gxf3 14. gxf3 dxe4 15. fxe4 {½-½ (93) Darini,P (2511)-Zhang,Z (2645) Doha 2016}) 9. a3 Be7 10. O-O-O Qa5 11. Kb1 b5 12. Na2 c5 13. dxc5 Nxc5 14. Qd2 Qb6 15. Nd4 $1 Ncd7 16. Bg3 O-O 17. Rhe1 Nc5 18. Qe2 a6 19. c3 Rfe8 20. Nc1 Na4 21. Na2 Nc5 (21... Rac8 $15) 22. h3 Bf8 23. Bf2 (23. Bh4 $11) 23... e5 $36 {[%mdl 2048] Black has good play.} 24. Nc2 $1 e4 ({Better is} 24... Qe6) 25. Nd4 $2 (25. Bh4 $11) 25... Nfd7 26. Nb4 {[#]} Qb7 $1 27. f4 a5 28. Nbc2 $2 (28. Qxb5 Qxb5 29. Nxb5) 28... Reb8 $19 29. Rf1 {[#]} ({Much weaker is} 29. Qxh5 Nd3) (29. Rd2 $142 Nd3 30. b3) 29... Nd3 (29... b4 $142 $1 {[%mdl 512]} 30. cxb4 (30. axb4 axb4) 30... axb4 31. Nxb4 Nd3 32. Nxd3 Bxa3) 30. Be1 $2 ({Don't blunder} 30. Qxh5 $2 b4 $19) (30. b4) 30... Nb6 $2 (30... b4 $19 31. cxb4 axb4 32. Rxd3 exd3 33. Qxd3 Nc5) 31. Rxd3 $17 exd3 32. Qxd3 Nc4 33. g4 Qa6 {...b4! is the strong threat.} 34. Qe2 {[#]} (34. Kc1 $17) 34... b4 $1 {[%cal Bb5b4,Bb4b3][%mdl 544] Strongly threatening ...b3.} 35. a4 $2 (35. b3) (35. axb4 axb4) 35... b3 $19 {Black is clearly winning.} 36. Na1 Bc5 37. Rf2 Bxd4 38. exd4 Qc6 {Accuracy: White = 50%, Black = 69%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.2"]
[White "Hernandez Guerrero, Gilberto"]
[Black "Vazquez, Facundo"]
[Result "1-0"]
[ECO "C05"]
[WhiteElo "2557"]
[BlackElo "2155"]
[Annotator "TA"]
[PlyCount "105"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,105,17,12,46,40,37,-16,0,0,36,18,4,5,12,8,13,12,15,12,16,22,20,12,12,31,65,46,98,98,100,63,63,63,63,56,62,53,51,62,71,71,94,80,79,80,77,76,77,76,76,76,76,74,74,72,74,72,83,83,86,83,91,91,115,91,141,164,181,184,172,157,149,150,358,189,189,189,189,189,457,189,188,189,1500,230,230,229,5096,4982,5702,5439]} 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. f4 c5 6. Ngf3 Nc6 7. Nb3 cxd4 8. Nbxd4 Qb6 {8...Nc5 is becoming the main line.} 9. c3 Bc5 {C11: French: Classical System: 4 e5 and 4 Bg5 dxe4.} 10. a3 a5 11. Rb1 {[#]} ({Better is} 11. Be2 $14) 11... Nxd4 $146 {The position is equal.} ({Predecessor:} 11... O-O 12. Bd3 Nxd4 13. cxd4 Be7 14. Qc2 h6 15. h4 f5 16. g4 fxg4 17. Bh7+ Kh8 {0-1 (45) Brendel,B (2061)-Busch,F (1872) Bad Homburg 2014}) 12. Nxd4 f6 (12... Bxa3 $5 13. Be3 Bc5 $15) 13. exf6 Nxf6 14. Be3 O-O 15. b4 Bxd4 16. Bxd4 Qc7 17. Be5 Qe7 18. Bb5 Bd7 19. Bd3 axb4 20. axb4 Bc6 21. O-O Rfd8 (21... Ra2 $14) 22. Qe2 Ne4 23. Rf3 (23. Ra1 {feels hotter.} Rdc8 24. Bd4 Qf7 25. g3 Qf5 26. Be5) 23... Be8 24. Bxe4 dxe4 25. Rg3 Bg6 26. Bd4 Qc7 27. Rf1 Rd7 28. Rg5 Rf8 29. Re5 Rd5 30. Rxe6 Rxf4 31. Rxf4 Qxf4 32. Re7 Qc1+ 33. Qf1 Qxf1+ 34. Kxf1 $16 {[%mdl 4096] Endgame KRB-KRB} Rf5+ 35. Ke2 Rf7 36. Re5 Rc7 37. Ke3 Kf7 38. g4 h6 39. h4 Bh7 40. Rb5 Ke6 41. h5 Rf7 {[#]} 42. c4 $1 Kd6 43. Rb6+ Kc7 {[#] Strongly threatening ...Rf3+.} 44. c5 $1 Re7 $2 (44... Rf3+ $16 {was necessary.} 45. Ke2 Bg8 46. Be5+ (46. Bxg7 Bc4+ 47. Kd1 e3 $11) 46... Kd8) 45. Rd6 (45. b5 $142) 45... Rf7 $18 46. Ke2 Re7 47. b5 {Black must now prevent Bc3.} e3 $2 (47... Bg8 {was worth a try.} 48. Ke3 Bh7) 48. Bxe3 (48. Bc3 $142 {aiming for Ba5+.} Re8 49. Bxg7) 48... Bg8 49. Kf3 Re6 $2 (49... Kc8 50. b6 Bb3) 50. Rxe6 $2 (50. b6+ Kc8 51. Rxe6 Bxe6 52. Bd4) 50... Bxe6 51. Bd4 g6 $2 (51... Bc4 52. Bxg7 Bxb5 53. Bxh6 Kd7) 52. g5 hxg5 53. h6 {Accuracy: White = 76%, Black = 61%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.3"]
[White "Trois, Francisco R.T."]
[Black "Tristan, Leonardo"]
[Result "0-1"]
[ECO "A06"]
[WhiteElo "2141"]
[BlackElo "2533"]
[Annotator "TA"]
[PlyCount "126"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,126,-33,-42,-44,-31,-47,-7,-27,-34,-36,-26,-29,-38,-50,-35,-35,-39,-43,-35,-45,-20,-29,-25,-18,0,-6,25,23,77,81,89,38,53,0,0,0,111,112,116,117,133,108,138,116,193,101,87,88,100,69,54,55,64,53,70,51,110,47,60,60,49,65,93,72,72,59,59,61,67,0,62,0,0,0,0,0,22,9,49,0,0,0,0,-20,0,-19,0,0,0,-35,-19,-53,-38,-20,-117,-263,-218,-589,-553,-1192,-988,-1556,-1420,-1218,-1258,-1209,-1275,-1493,-1279]} 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. O-O Be7 5. b3 O-O 6. Bb2 c5 7. c4 d4 8. e3 Nc6 9. d3 e5 10. exd4 exd4 11. Re1 {11.h3 is the modern continuation. A14: English Opening: 1...e6 with b3 by White.} Bd6 12. Na3 Bf5 13. Nc2 {The position is equal.} a5 14. Nh4 Bg4 15. Qd2 Qd7 {[#]} 16. f4 $146 ({Predecessor:} 16. Na3 Rac8 17. Nb5 Bb8 18. a3 h6 19. f4 Bh3 20. Bxh3 Qxh3 21. Qg2 Qd7 22. Bc1 {½-½ (41) Jirovsky,M (2305)-Mozny,M (2385) Czechoslovakia 1991}) 16... Bh3 17. Bxh3 Qxh3 18. Qg2 Qd7 19. a4 Ra6 20. Bc1 Rb6 21. Rb1 Ne7 22. Bd2 Ra8 (22... Ra6 {feels hotter.} 23. Na3 Nc6 24. Qf3 Raa8 25. Nb5 Rae8) 23. Na3 Nf5 {[#]} (23... Nc6 $11 {remains equal.}) 24. Nxf5 $1 $16 Qxf5 25. Qf1 (25. Qf3 $16) 25... h5 $14 26. h3 (26. Nb5 $14) 26... Bb8 $11 27. Kg2 Bd6 (27... Raa6 $11) 28. Qf3 Qd7 29. Nb5 Rc6 30. Re2 Bf8 31. Rbe1 b6 (31... g6 $16 {was necessary.}) 32. Re5 (32. f5 $18) 32... Rcc8 $16 {[#]} 33. f5 $1 Re8 34. g4 hxg4 35. hxg4 Rxe5 36. Rxe5 Re8 37. Bf4 g6 (37... Rxe5 $14 38. Bxe5 Ne8) 38. Kf2 (38. Nc7 $16 Rxe5 39. Bxe5) 38... Rxe5 $1 $14 39. Bxe5 Qe7 40. Bf4 Nd7 41. fxg6 fxg6 42. Qd5+ Kh8 43. Qh1+ Kg8 $1 44. Qd5+ Kh8 45. Bg5 ({White should play} 45. g5 $14) 45... Nf6 $1 $11 {[%cal Rf6d5]} 46. Qf3 Bg7 47. Bf4 Qd7 48. Kg3 Qe6 49. Bd2 (49. Nc7 $5 {[%cal Rc7e6]} Qe1+ 50. Kh3 $11) 49... Nd7 50. Bf4 Ne5 51. Bxe5 Qxe5+ 52. Kf2 Qh2+ 53. Kf1 Kh7 54. Ke1 Be5 55. Kf1 Kh6 $36 {[%mdl 2048] Hoping for ...Bb8. White is under pressure.} 56. Na7 $1 Kg5 57. Nc6 (57. Nc8 $17 {was forced.}) 57... Bf6 58. Qe4 $2 (58. Qd5+ {is a better chance.} Kxg4 59. Qe6+ Kg5 60. Qd5+ Kh6 61. Qf3) 58... Qf4+ $19 {Black is clearly winning.} 59. Qxf4+ Kxf4 60. Ke2 Kxg4 61. Nb8 g5 62. Nd7 Bd8 63. Ne5+ Kf4 {Accuracy: White = 62%, Black = 78%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.4"]
[White "Lima, Darcy"]
[Black "Dominguez, Facundo"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2526"]
[BlackElo "2135"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,77,0,0,0,0,0,0,13,4,13,0,0,0,18,10,55,55,87,92,93,29,20,22,24,8,33,32,32,32,51,51,51,32,32,22,32,32,38,39,59,29,29,8,29,8,42,42,42,42,74,38,38,38,38,38,38,39,141,202,370,366]} 1. g3 Nf6 2. Bg2 e5 3. e4 Bc5 4. Nc3 O-O 5. Nf3 Nc6 6. O-O d5 7. exd5 Nxd5 8. Re1 Nxc3 9. bxc3 Bb6 10. d3 f6 {[#] C47: Scotch Four Knights and Four Knights with 4 g3.} 11. Be3 $146 ({Predecessor:} 11. Nd2 Be6 12. a4 Qd7 13. Ba3 Rfe8 14. Nb3 Bd5 15. Bxd5+ Qxd5 16. Bb4 Nxb4 17. cxb4 c6 18. a5 {½-½ (37) Jimenez Melguizo,F (2280)-Morales,O (2279) ICCF email 2018}) 11... Bg4 12. Qb1 Re8 {The position is equal.} 13. Nd2 Be6 14. a4 Rb8 15. Qb5 Bd7 16. Qd5+ Be6 (16... Kh8 {is more complex.} 17. Nc4 Ne7 18. Qe4 Bc6 19. Qg4 Bxe3 20. Nxe3 Qd6) 17. Qxd8 $1 Rexd8 18. Bxc6 {[#] Threatens to win with Bh1.} bxc6 19. a5 ({White should play} 19. Bxb6 $16 axb6 20. f4) 19... Bxe3 $11 20. fxe3 Rb2 21. Rec1 Rdb8 22. c4 Bf5 {White should prevent ...Bxd3!} 23. e4 Bc8 24. Kf2 Kf8 25. Ra3 R2b4 26. Ke3 Ke7 27. Nb3 Kd6 28. Kd2 c5 29. Kc3 a6 30. Raa1 Be6 31. Nd2 Bd7 32. Nf1 h5 33. Ne3 c6 34. Rf1 Ke7 35. Rfe1 Be6 36. Nf1 Kf7 37. Nd2 Bg4 (37... Ke7 $1 $14) 38. Nb3 $16 R4b7 $2 {[#]} (38... Ke7 39. Nxc5 Bc8) 39. Nxc5 {Accuracy: White = 88%, Black = 71%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.5"]
[White "Curi, Gabriel"]
[Black "Vazquez, Guillermo"]
[Result "0-1"]
[ECO "B11"]
[WhiteElo "2132"]
[BlackElo "2524"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,74,15,4,44,13,31,21,12,26,16,22,26,12,37,30,51,20,21,25,23,7,37,-31,-36,-47,0,-31,-8,-23,-12,-23,-24,-70,-70,-75,-70,-77,-77,-75,-62,-156,-169,-197,-193,-237,-78,-68,-67,-327,-328,-311,-316,-495,-493,-893,-881,-815,-797,-895,-852,-29987,-29988,-29989,-29990,-29990,-29991]} 1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. Be2 g6 {B11: Caro-Kann: Two Knights Variation.} 7. O-O Bg7 8. Rd1 d4 {The position is equal.} 9. Nb1 $1 Ne7 10. d3 c5 11. a4 O-O 12. Na3 Nbc6 13. Qg3 a6 14. Bf4 e5 15. Bd2 Rb8 16. f4 (16. h4 $14) 16... b5 $15 17. Rf1 Bh6 (17... f5 {keeps more tension.} 18. fxe5 Bxe5 19. Qh4 Qc7 20. Bh6 Rf7) 18. Qh4 (18. axb5 {is interesting.} axb5 19. Nb1 Bxf4 20. Bxf4 exf4 21. Qxf4 f6 22. Nd2) 18... Bxf4 19. Bxf4 exf4 20. axb5 axb5 21. Rxf4 Ne5 22. Raf1 N7c6 {[#] Hoping for ...Qxh4.} 23. Qh6 $146 {[#] aiming for Rh4.} ({Predecessor:} 23. Qf2 b4 24. Nb1 b3 25. c4 Nb4 26. Qg3 f6 27. Kh2 Qd6 28. Na3 Nc2 29. Nb5 {0-1 (53) Perez Ponsa,F (2553)-Nakamura,H (2781) Caleta 2018}) 23... f6 24. Nb1 Nb4 25. Bd1 (25. Na3 $15) 25... c4 $17 26. dxc4 bxc4 27. Nd2 Nxc2 $2 {[#]} (27... d3 $19 {and Black stays clearly on top.} 28. c3 Nc2) 28. Bxc2 Rxb2 29. Nxc4 $2 {[%mdl 8192]} (29. Rh4 $2 Rf7 $19) (29. Ba4 $15) 29... Nxc4 $19 30. e5 Nxe5 ({But not} 30... Rxc2 $2 31. Rxf6 Rxg2+ 32. Kh1 $18 (32. Kxg2 Ne3+ {[%mdl 64] Double Attack} 33. Kg1 Nxf1 $11)) 31. Be4 (31. Bd1 {keeps fighting.}) 31... d3 32. Kh1 (32. Qh4 $142) 32... d2 33. Rd1 f5 34. Rh4 Rf7 35. Bf3 Nxf3 {Black mates.} 36. gxf3 Qd3 37. Qf4 Rb1 {Accuracy: White = 56%, Black = 81%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.6"]
[White "Hungaski, Robert"]
[Black "Munoz Perez, Rolando"]
[Result "1/2-1/2"]
[ECO "A30"]
[WhiteElo "2504"]
[BlackElo "2130"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,88,44,39,43,55,19,34,23,27,10,10,17,16,0,0,0,0,-57,31,31,28,31,33,27,32,35,57,41,59,29,31,47,36,0,12,-31,-30,-54,-58,-36,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 Nf6 2. c4 c5 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. Re1 d6 8. e4 Nbd7 9. d4 cxd4 10. Nxd4 Qc7 11. b3 a6 12. Bb2 O-O 13. Rc1 Rac8 14. f4 {A30: Symmetrical English: Double Fianchetto and Hedgehog.} Rfd8 15. Kh1 Bf8 16. Qe2 {White is slightly better.} Qb8 17. f5 {[#]} exf5 $146 ({Predecessor:} 17... Re8 18. fxe6 fxe6 19. Rf1 Qa8 20. Rce1 Rc5 21. Kg1 Ne5 22. Bh3 Bc8 23. Na4 Rc7 24. Nxb6 {1-0 (51) Suter,S (2077)-Cohrs,G Biel 2000}) 18. Nxf5 g6 19. Nd4 Re8 20. Qf3 Bg7 21. Nd5 (21. Qf4 $11) 21... Bxd5 ({Black should try} 21... b5 $1 $15) 22. exd5 $14 {[#] Black must now prevent Nc6.} Rxe1+ 23. Rxe1 {Strongly threatening Nc6.} Re8 24. Rf1 Ne5 {[%cal Bd7e5,Be5g4,Bg4e3][%mdl 32]} 25. Qd1 Neg4 {White should prevent ...Ne3.} 26. Nc6 Qc7 {With the idea ...Ne3.} 27. Qa1 {[%cal Rb2f6]} Nh5 28. Bxg7 Nxg7 29. Qd4 h5 30. h3 Ne3 31. Re1 Ngf5 {[%mdl 64] [#] Double Attack} 32. Qf4 Qd7 (32... Kg7 $5 {[%cal Re3g2]} 33. Nd4 Re5 $11) 33. Qf2 $1 {The position is equal.} Nxg2 34. Kxg2 b5 35. cxb5 axb5 36. g4 Rxe1 37. Qxe1 hxg4 38. hxg4 Nh6 39. g5 Qg4+ 40. Qg3 {aiming for Qxg4.} Qe2+ 41. Qf2 $1 {[%cal Rf2e2]} Qg4+ 42. Qg3 {Qxg4 is the strong threat.} Qe2+ 43. Qf2 $1 {[%cal Rf2e2]} Qg4+ 44. Qg3 {Hoping for Qxg4.} Qe2+ {Accuracy: White = 77%, Black = 89%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.7"]
[White "Guerrero, Alvaro"]
[Black "Rodriguez Vila, Andres"]
[Result "0-1"]
[ECO "E70"]
[WhiteElo "2094"]
[BlackElo "2492"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,64,22,62,58,54,45,51,35,58,9,9,12,9,8,14,12,17,25,25,0,24,26,39,58,84,103,105,95,95,96,125,45,62,69,82,-18,36,23,63,44,54,62,130,149,120,-722,-733,-728,-708,-2268,-2105,-1563,-1213,-1177,-1151]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 O-O 5. Be3 d6 6. f3 Na6 {6...Nc6 is setting a new trend.} 7. Nge2 {E81: King's Indian: Sämisch: 6th move deviations (including 6 Be3 c6).} c5 8. d5 Nc7 9. Ng3 {White is slightly better.} e6 10. Be2 exd5 11. cxd5 b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 12. Qd2 b4 13. Nd1 {[%cal Bc3d1,Bd1e3,Be3c4][%mdl 32] [#]} Re8 $146 ({Predecessor:} 13... Bd7 14. Bh6 Nb5 15. Bxb5 Bxb5 16. h4 Nd7 17. Bxg7 Kxg7 18. h5 Qe7 19. Ne3 Kg8 {0-1 (69) Defibaugh,J (2236)-Gonzalez,F (2315) ICC INT 2014}) 14. a3 a5 15. O-O Bd7 16. a4 Rb8 17. Bf4 Bc8 18. Ne3 h5 {White should prevent ...h4.} 19. Nc4 $1 h4 20. Nh1 ({But not} 20. Nxd6 $6 hxg3 21. Nxe8 gxh2+ 22. Kxh2 (22. Bxh2 Nfxe8 23. Bg3 Nd6 $11) 22... Nfxe8 $11) ({Of course not} 20. Nxa5 Ra8 $14) 20... Nh5 21. Bxd6 (21. Bg5 $1 $16 {[%cal Rg5d8]} Bf6 22. Be3) 21... Bd4+ 22. Nf2 Ba6 23. Bxc7 ({White should try} 23. Kh1 $16) 23... Qxc7 $11 24. Kh1 Kg7 25. Nh3 $1 Bc8 26. d6 Qd8 {[#]} ({Better is} 26... Qc6 $14) 27. f4 $1 $36 {[%mdl 2048] Black is under strong pressure.} Rxe4 28. Ng5 $2 {[%mdl 8192] [#]} (28. Bxh5 $16 gxh5 29. Ng5) 28... Ng3+ $1 $19 {[%mdl 512] Black is clearly winning.} 29. hxg3 hxg3 30. f5 Qh8+ 31. Nh3 {[#]} Bb7 {Played: Re4-h4} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.8"]
[White "Hoffman, Alejandro"]
[Black "Torella, Rodolfo"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "2472"]
[BlackElo "2081"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,51,33,27,53,53,45,15,0,12,63,33,52,42,54,58,88,70,89,76,92,46,104,103,101,85,197,202,409,440,381,420,375,240,666,643,743,688]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Bg5 c6 5. e3 h6 6. Bxf6 Qxf6 7. Nc3 Nd7 8. Bd3 Bb4 9. O-O Bxc3 {D43: Semi-Slav: 5 Bg5 h6.} 10. bxc3 O-O 11. Rb1 dxc4 {The position is equal.} 12. Bxc4 e5 {[#]} (12... b6 $11) 13. Be2 $146 ({Predecessor:} 13. e4 exd4 14. cxd4 Nb6 15. Qb3 Qf4 16. Rfe1 Nxc4 17. Qxc4 Be6 18. Qc2 Rab8 19. a3 {½-½ (42) Prazmowski,B (1880)-Hanusek,K (1779) Murzasichle 2011}) 13... Re8 14. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} c5 15. a5 e4 16. Nd2 Qg5 17. Nc4 Nf6 18. Kh1 Rd8 ({Black should try} 18... Re7 $14) 19. Rb5 $16 Rd5 20. f4 Qh4 (20... exf3 $16 {is a better defense.} 21. Bxf3 Be6) 21. Ne5 $18 ({Resist} 21. Rxc5 $6 Rxc5 22. dxc5 Ng4 $14) 21... cxd4 $2 (21... b6 {might work better.} 22. Qa4 (22. axb6 axb6 23. Bc4 Ng4 $16 {[%mdl 64] Double Attack}) 22... Ba6) 22. Rxd5 Nxd5 23. Qxd4 {[%mdl 64] [#] Double Attack} Nc7 24. Qxe4 {Black must now prevent Bd3.} Rb8 $2 (24... Qe7 25. Rd1 Be6 26. Qxb7 Qc5) 25. Bd3 {aiming for Qh7+.} f5 26. Qc4+ {[%mdl 64] Double Attack. Accuracy: White = 63%, Black = 36%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.9"]
[White "Suarez, Pedro"]
[Black "Diaz Hollemaert, Nahuel"]
[Result "0-1"]
[ECO "E41"]
[WhiteElo "2063"]
[BlackElo "2450"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,94,0,0,8,0,7,0,0,-20,0,0,0,0,0,0,0,-14,-5,-22,-15,-26,-30,-45,-41,-56,-58,-69,-56,-112,-101,-116,-119,-106,-96,-129,-104,-129,-125,-149,-154,-154,-169,-162,-167,-174,-173,-166,-162,-193,-193,-183,-187,-183,-183,-307,-300,-313,-295,-342,-339,-333,-306,-319,26,-305,-96,-363,-358,-368,-355,-361,-332,-363,-353,-454,-342,-493,-493,-502,-512,-677,-664,-645,-652]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. Nge2 cxd4 7. exd4 O-O {E41: Nimzo-Indian: Rubinstein: 4...c5 5 Bd3, including Hübner Variation} 8. O-O d5 9. Bf4 dxc4 {The position is equal.} 10. Bxc4 {[#]} Bxc3 $146 ({Predecessor:} 10... Bd6 11. Qc1 b6 12. Rd1 Na5 13. Bd3 Bxf4 14. Nxf4 Bb7 15. h3 Rc8 16. Qe3 Rc7 17. Nb5 Rd7 {½-½ (79) Glembek,B (2212)-Pheby,I (2246) ICCF email 2016}) 11. bxc3 b6 12. Qd3 Na5 13. Bb3 Bb7 14. Qh3 Bd5 15. Bc2 Be4 16. Bxe4 Nxe4 17. Rfd1 Rc8 18. Qd3 Qd5 19. f3 Nf6 20. Ng3 (20. Be5 $15) 20... Qc6 21. Rac1 Nd5 22. Ne2 Nc4 {Hoping for ...Nb2.} 23. Qb1 Rfd8 24. Qb3 Na5 25. Qa3 Qb5 26. Kf2 Rc4 {[%cal Bc8c4,Bc4a4,Ba4a5][%mdl 32]} 27. Rb1 Qc6 28. Bd2 Ra4 29. Qb2 Rc8 30. Rbc1 Nc4 31. Qc2 Qb5 $36 {[%mdl 2048] Black is on the roll.} 32. Qb3 Qa6 33. Rc2 (33. Ra1 {only move.}) 33... Ra5 $19 {White must now prevent ...Rb5.} 34. Rb1 Na3 {[%mdl 64] Double Attack} 35. Rbb2 Nxc2 36. Qxc2 Ra3 {Played: Qa6-c4} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.10"]
[White "Garcia Palermo, Carlos"]
[Black "Meza, Anahi"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "2434"]
[BlackElo "2046"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,61,0,-23,48,48,83,37,20,0,3,0,0,0,0,0,-3,0,36,36,66,33,39,34,34,26,39,21,54,45,75,0,0,0,0,0,0,-7,0,0,0,-175,-191,-154,-191,-204,-189,-218,-207,-236]} 1. d4 Nf6 2. Bg5 Ne4 3. Bf4 c5 4. f3 Qa5+ 5. c3 Nf6 6. Nd2 cxd4 7. Nb3 Qb6 8. cxd4 {[#]} d6 $146 {A45: Trompowsky Attack.} (8... a5 $11) ({Predecessor:} 8... Nc6 9. e4 e5 10. dxe5 Bb4+ 11. Ke2 Nxe5 12. Qd4 Ng6 13. Be3 d5 14. exd5 O-O 15. a3 Qxd4 16. Bxd4 {0-1 (89) Hodgson,J (2550)-Gelfand,B (2665) Groningen 1996}) 9. e4 $14 Nbd7 10. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} e5 {White is slightly better.} 11. a5 Qd8 12. Bg3 Nh5 13. Ne2 Nxg3 14. hxg3 Be7 15. Nc3 $36 {[%mdl 2048] White is pushing.} exd4 16. Nxd4 O-O 17. Bc4 Ne5 18. Bd5 {f4 is the strong threat.} Rb8 19. Qd2 Bd7 20. O-O h5 21. Nf5 b5 22. Bb3 (22. b4 $16) 22... Bxf5 $11 23. exf5 Nc4 24. Bxc4 bxc4 25. Nd5 Bf6 26. Ra2 Rb3 27. Rf2 $2 {[#]} (27. Qf4 $11 {and White stays safe.}) 27... Rd3 $19 {Black is clearly better.} 28. Nxf6+ Qxf6 29. Qf4 Rd4 30. Qe3 Rd1+ 31. Kh2 {Accuracy: White = 68%, Black = 67%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.11"]
[White "Pichuaga, Juan Pablo"]
[Black "Roselli Mailhe, Bernardo"]
[Result "1/2-1/2"]
[ECO "B23"]
[WhiteElo "2030"]
[BlackElo "2433"]
[Annotator "ChessBase"]
[PlyCount "128"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:00]} 2. Nc3 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 3. d3 {[%emt 0:00:04]} Nc6 {[%emt 0:01:19]} 4. g3 {[%emt 0:00:07]} d5 {[%emt 0:03:30]} 5. Bg2 {[%emt 0:00:24]} d4 {[%emt 0:03:42]} 6. Nce2 {[%emt 0:01:10]} Bd6 {[%emt 0:05:49]} 7. f4 {[%emt 0:02:30]} f6 {[%emt 0:06:23]} 8. Nf3 {[%emt 0:02:06]} Bd7 {[%emt 0:00:37]} 9. c3 {[%emt 0:03:33]} e5 {[%emt 0:06:50]} 10. O-O {[%emt 0:02:02]} Qb6 {[%emt 0:02:53]} 11. c4 {[%emt 0:08:41]} O-O-O {[%emt 0:04:54]} 12. Rb1 {[%emt 0:02:59]} h6 {[%emt 0:04:44]} 13. a3 {[%emt 0:06:49]} a5 {[%emt 0:02:41]} 14. b3 {[%emt 0:04:06]} Nge7 {[%emt 0:01:56]} 15. Bd2 {[%emt 0:06:42]} Rde8 {[%emt 0:02:07]} 16. f5 {[%emt 0:08:51]} g6 {[%emt 0:03:24]} 17. fxg6 {[%emt 0:08:02]} Nxg6 {[%emt 0:08:02]} 18. Nh4 {[%emt 0:03:01]} Nxh4 {[%emt 0:03:25]} 19. gxh4 {[%emt 0:00:20]} Reg8 {[%emt 0:00:46]} 20. Ng3 {[%emt 0:02:03]} Rg4 {[%emt 0:05:01]} 21. Rxf6 {[%emt 0:09:19]} Be7 {[%emt 0:04:19]} 22. Rxh6 {[%emt 0:08:42]} Rxh6 {[%emt 0:00:19]} 23. Bxh6 {[%emt 0:00:08]} Rxh4 {[%emt 0:00:03]} 24. Qd2 {[%emt 0:03:38]} Qd8 {[%emt 0:01:22]} 25. Rf1 {[%emt 0:01:00]} Qh8 {[%emt 0:07:01]} 26. Bg5 {[%emt 0:00:58]} Bxg5 {[%emt 0:01:02]} 27. Qxg5 {[%emt 0:00:07]} Rxh2 {[%emt 0:01:43]} 28. Nf5 {[%emt 0:03:11]} Rh7 {[%emt 0:01:29]} 29. Qg6 {[%emt 0:01:57]} Bxf5 {[%emt 0:11:27]} 30. exf5 {[%emt 0:01:34]} Rh6 {[%emt 0:00:17]} 31. Qg4 {[%emt 0:03:26]} Qf6 {[%emt 0:00:42]} 32. Qg8+ {[%emt 0:01:29]} Kc7 {[%emt 0:00:48]} 33. Qd5 {[%emt 0:00:27]} Qg5 {[%emt 0:02:34]} 34. Qxc5 {[%emt 0:03:18]} Rf6 {[%emt 0:01:38]} 35. Rf3 {[%emt 0:01:12]} Qc1+ {[%emt 0:01:12]} 36. Kf2 {[%emt 0:00:40]} Qd2+ {[%emt 0:00:41]} 37. Kf1 {[%emt 0:00:46]} Rxf5 {[%emt 0:00:56]} 38. Rxf5 {[%emt 0:00:57]} Qxd3+ {[%emt 0:00:03]} 39. Kg1 {[%emt 0:00:22]} Qxf5 {[%emt 0:00:07]} 40. Bxc6 {[%emt 0:01:04]} bxc6 {[%emt 0:00:19]} 41. Qe7+ {[%emt 0:01:02]} Kc8 {[%emt 0:01:48]} 42. Qe8+ {[%emt 0:00:42]} Kc7 {[%emt 0:00:54]} 43. Qe7+ {[%emt 0:00:09]} Kc8 {[%emt 0:00:29]} 44. Qe8+ {[%emt 0:00:06]} Kb7 {[%emt 0:00:02]} 45. Qe7+ {[%emt 0:01:00]} Ka6 {[%emt 0:00:18]} 46. Qe8 {[%emt 0:00:31]} Qg4+ {[%emt 0:00:55]} 47. Kf2 {[%emt 0:00:18]} Qf4+ 48. Kg2 {[%emt 0:00:13]} Qg5+ {[%emt 0:01:16]} 49. Kf2 {[%emt 0:00:13]} Qh4+ {[%emt 0:00:33]} 50. Kg2 {[%emt 0:00:09]} Qe4+ {[%emt 0:00:48]} 51. Kf2 {[%emt 0:00:58]} Qc2+ {[%emt 0:00:32]} 52. Kg1 {[%emt 0:00:45]} Qd1+ {[%emt 0:00:11]} 53. Kg2 {[%emt 0:00:13]} Qe2+ {[%emt 0:00:10]} 54. Kg1 {[%emt 0:00:25]} Qe1+ {[%emt 0:01:27]} 55. Kh2 {[%emt 0:00:53]} Qf2+ {[%emt 0:00:35]} 56. Kh1 {[%emt 0:00:20]} Qf3+ {[%emt 0:00:31]} 57. Kh2 {[%emt 0:00:22]} Qf4+ {[%emt 0:00:22]} 58. Kg1 {[%emt 0:00:16]} Qg3+ {[%emt 0:00:44]} 59. Kh1 {[%emt 0:00:28]} Qf3+ {[%emt 0:00:33]} 60. Kg1 {[%emt 0:00:05]} d3 {[%emt 0:00:24]} 61. Qa8+ {[%emt 0:00:31]} Kb6 {[%emt 0:00:06]} 62. Qb8+ {[%emt 0:00:10]} Ka6 {[%emt 0:00:18]} 63. Qa8+ {[%emt 0:00:09]} Kb6 {[%emt 0:00:05]} 64. Qb8+ {[%emt 0:00:07]} Ka6 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.12"]
[White "Liascovich, Lucas"]
[Black "Escofet, Jaime"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "2425"]
[BlackElo "2025"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,51,18,17,40,35,69,75,79,74,77,28,40,40,65,57,64,40,61,52,60,69,63,77,74,69,71,75,76,62,133,138,143,137,546,573,572,562]} 1. d4 e6 2. Nf3 f5 3. g3 Nf6 4. Bg2 d5 5. O-O Bd6 6. c4 c6 7. b3 Qe7 8. Bb2 O-O 9. Ne5 Bd7 {A90: Dutch Defence: Miscellaneous and Modern Stonewall (with ...Bd6).} 10. Nd2 Ne4 11. Nxe4 fxe4 {White is better.} 12. f3 exf3 13. Bxf3 Be8 14. e4 {[%cal Re4d5] [#]} dxe4 $146 ({Predecessor:} 14... Bxe5 15. dxe5 dxc4 16. bxc4 Qc5+ 17. Qd4 Qxd4+ 18. Bxd4 Na6 19. Bg4 Bd7 20. Bc3 Rxf1+ 21. Rxf1 {1-0 (28) Shevchenko,A (2144)-Kovalenko,S (2305) Voronezh 2008}) 15. Bxe4 Rxf1+ 16. Qxf1 Nd7 17. Qh3 Nf8 18. Nf3 Bg6 19. Bxg6 Nxg6 20. Re1 {[%cal Ba1e1,Be1e2,Be2f2][%mdl 32]} Re8 21. Qh5 Nf8 22. Ng5 $36 {[%mdl 2048] Black must now prevent Rxe6! White is pushing.} g6 (22... h6 $1 $14 23. Ne4 Rd8) 23. Qh6 $16 Bb4 {[#]} 24. Re2 $1 {aiming for a3!} Ba3 $2 {[%mdl 8192]} (24... e5 $16 {is a better chance.} 25. a3 (25. Rxe5 Qd8 $16) (25. dxe5 Qd7 $16) 25... Bxa3) 25. Bxa3 $18 Qxa3 26. Rf2 {[%mdl 64] Remove Defender. Accuracy: White = 94%, Black = 57%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.13"]
[White "Brizzi, Milagros Tatiana"]
[Black "Acosta, Pablo Ismael"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "2022"]
[BlackElo "2416"]
[Annotator "RC"]
[PlyCount "96"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:00:56]} e6 {[%emt 0:00:00]} 2. d3 {[%emt 0:00:16]} c5 {[%emt 0:00:59]} 3. Nf3 {[%emt 0:00:31]} Nc6 {[%emt 0:00:10]} 4. g3 {[%emt 0:00:18]} g6 {[%emt 0:00:08]} 5. Bg2 {[%emt 0:00:31]} Bg7 {[%emt 0:00:07]} 6. O-O {[%emt 0:00:46]} Nge7 {[%emt 0:00:39]} 7. c3 {[%emt 0:05:37]} d6 {[%emt 0:01:15]} 8. Nbd2 {[%emt 0:02:47]} O-O {[%emt 0:00:33]} 9. Re1 {[%emt 0:03:04]} h6 {[%emt 0:05:17]} 10. Nb3 {[%emt 0:08:48]} e5 {[%emt 0:05:00]} 11. d4 {[%emt 0:08:49]} exd4 {[%emt 0:05:57]} 12. cxd4 {[%emt 0:00:34]} Bg4 {[%emt 0:06:58]} 13. Be3 {[%emt 0:09:05]} c4 {[%emt 0:06:20]} 14. Nbd2 {[%emt 0:09:47]} b5 {[%emt 0:01:03]} 15. h3 {[%emt 0:00:26]} Bxf3 {[%emt 0:04:29]} 16. Nxf3 {[%emt 0:00:21]} Kh7 {[%emt 0:04:52]} 17. Qd2 {[%emt 0:04:33]} Qa5 {[%emt 0:04:08]} 18. Qe2 {[%emt 0:09:19]} Rac8 {[%emt 0:05:36]} 19. a3 {[%emt 0:02:32]} Rfe8 {[%emt 0:05:02]} 20. Rad1 {[%emt 0:05:31]} Ng8 {[%emt 0:03:41]} 21. Qc2 {[%emt 0:13:24]} Nf6 {[%emt 0:01:43]} 22. d5 {[%emt 0:02:38]} Nb8 {[%emt 0:06:46]} 23. Bf4 {[%emt 0:02:09]} Rcd8 {[%emt 0:00:43]} 24. Nd4 {[%emt 0:03:04]} Nxd5 {[%emt 0:01:29]} 25. Bd2 {[%emt 0:05:42]} Qa4 {[%emt 0:01:57]} 26. Qxa4 {[%emt 0:00:33]} bxa4 {[%emt 0:00:07]} 27. Ba5 {[%emt 0:00:07]} Nb6 {[%emt 0:00:48]} 28. Bc3 {[%emt 0:00:54]} d5 {[%emt 0:04:45]} 29. exd5 {[%emt 0:00:42]} Rxe1+ {[%emt 0:00:52]} 30. Rxe1 {[%emt 0:00:06]} Nxd5 {[%emt 0:00:13]} 31. Bxd5 {[%emt 0:00:48]} Rxd5 {[%emt 0:00:04]} 32. Re8 {[%emt 0:00:28]} Nd7 {[%emt 0:04:54]} 33. Ne2 {[%emt 0:00:34]} Nb6 {[%emt 0:02:33]} 34. Re7 {[%emt 0:00:37]} Rd7 {[%emt 0:00:13]} 35. Rxd7 {[%emt 0:00:33]} Nxd7 {[%emt 0:00:05]} 36. Nd4 {[%emt 0:00:22]} Nc5 {[%emt 0:03:43]} 37. Kg2 {[%emt 0:00:39]} Ne4 {[%emt 0:00:32]} 38. Kf3 {[%emt 0:00:32]} Nxc3 {[%emt 0:02:35]} 39. bxc3 {[%emt 0:00:04]} Bf8 {[%emt 0:00:26]} 40. Nc2 f5 41. Ke2 {[%emt 0:01:30]} g5 {[%emt 0:00:41]} 42. f3 {[%emt 0:00:27]} Kg6 {[%emt 0:00:10]} 43. Kd2 {[%emt 0:00:31]} Bd6 {[%emt 0:00:44]} 44. g4 {[%emt 0:00:28]} Kf6 {[%emt 0:03:38]} 45. Ne3 {[%emt 0:00:25]} fxg4 46. Nxg4+ {[%emt 0:00:40]} Kg6 {[%emt 0:01:02]} 47. Ke3 {[%emt 0:00:27]} h5 {[%emt 0:00:00]} 48. Nh2 Bxh2 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.14"]
[White "Menna Barreto, Felipe Kubiaki"]
[Black "Meskanen, Vesa"]
[Result "1-0"]
[ECO "B38"]
[WhiteElo "2395"]
[BlackElo "2019"]
[Annotator "TA"]
[PlyCount "49"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,49,54,52,57,35,56,33,20,33,95,82,88,6,9,0,2,17,161,158,144,151,113,114,92,103,75,108,137,112,949,910]} 1. c4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. e4 Bg7 6. Be3 d6 7. Nc3 Nf6 8. Be2 Bd7 9. O-O O-O 10. h3 Rc8 11. Rc1 Nxd4 {B38: Sicilian: Maroczy Bind with 5...Bg7 and 7...0-0.} 12. Bxd4 Bc6 {[#]} 13. Qc2 $146 (13. Bxa7 b6 $17) ({Predecessor:} 13. Qd3 a6 14. f4 b5 15. cxb5 axb5 16. Nd5 Nxd5 17. exd5 Bxd4+ 18. Qxd4 Bd7 19. Rfe1 {0-1 (42) Foldesi,M (2040)-Nagy,A (2058) Slovakia 2017}) 13... a6 {White is slightly better.} 14. Qb1 b5 (14... Qd7 $14) 15. cxb5 $16 axb5 16. b4 ({But not} 16. Nxb5 $6 Bxe4 17. Rxc8 Qxc8 $11) (16. Bxb5 $16 Bh6 17. Rc2) 16... Qd7 $11 17. Rfd1 Bh6 18. Bxf6 Bxc1 (18... exf6 $11 19. Rc2 Bf4) 19. Bg4 $18 Qb7 20. Bxc8 Rxc8 21. Qxc1 {[#] And now Bg5 would win.} exf6 22. Qf4 f5 23. exf5 {Strongly threatening f6.} Bxg2 {[#]} 24. f6 $1 {White wants to mate with Qh6.} Bh1 $2 {[%mdl 8192]} ({Don't blunder} 24... Bxh3 $2 25. Nd5 $18) (24... Qf3 $16 25. Qxf3 Bxf3 26. Rxd6 h5) 25. Nd5 {Accuracy: White = 86%, Black = 54%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.15"]
[White "Gomez Troccoli, Martin"]
[Black "Mussanti, Diego"]
[Result "0-1"]
[ECO "B44"]
[WhiteElo "2004"]
[BlackElo "2330"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,84,-24,-24,-54,-56,-52,-56,-65,-81,-98,-70,-83,-68,-63,-22,-36,-30,-112,-104,-166,-61,-193,-151,-202,-216,-200,-212,-193,-202,-194,-193,-193,-194,-214,0,0,0,0,0,0,0,0,0,-562,-564,-485,-377,-395,-390,-381,-376,-380,-364,-368,-270,-340,-301,-362,-292,-518,-524,-509,-468,-526,-485,-632,-554,-12739,-12739,-29982,-29983,-6175,-6175]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. c4 Nf6 6. Nc3 Bb4 7. f3 O-O 8. Be2 {B44: Sicilian: Taimanov: 5 Nb5.} d5 9. Nxc6 bxc6 {[#]} 10. e5 $146 {Black is slightly better.} ({Predecessor:} 10. cxd5 cxd5 11. O-O d4 12. Na4 e5 13. a3 Be7 14. b4 Bd7 15. Nb2 a5 16. Bd2 axb4 17. axb4 {0-1 (36) Sjogren,S (1822)-Kryvoruchko,Y (2666) Warsaw 2011}) 10... Nd7 11. f4 Qb6 12. a3 Bxc3+ 13. bxc3 f6 14. cxd5 cxd5 15. Qd4 (15. exf6 $11 {was the only way to keep the balance.} Nxf6 16. Qd3) 15... fxe5 $17 16. fxe5 (16. Qxb6 $17 {was worth a try.} axb6 17. fxe5) 16... Qc7 (16... Qc6 $19 17. c4 Ba6 18. cxd5 exd5 19. Bxa6 Qxa6 20. Qxd5+ Kh8) 17. Bf4 {[#]} (17. Rf1 $15) 17... Ba6 $1 $19 {[%mdl 512]} 18. Bxa6 (18. Ra2 $17 Bxe2 19. Rxe2) 18... Rxf4 $1 19. Qxf4 Qxc3+ {[%mdl 64] Double Attack} 20. Ke2 {[#]} Rf8 $1 {[%cal Rf8f4]} 21. Qc1 Qxe5+ 22. Kd1 Qd4+ 23. Ke1 {Black should prevent Rf1.} Qe5+ $2 (23... Qh4+ $19 24. Kd2 Qf4+ 25. Ke1 Qh4+ 26. Kd2 Qd4+ 27. Ke1 Qf2+ {[%mdl 64] Double Attack} 28. Kd1 Qxg2) 24. Be2 $11 {Rf1 is the strong threat.} Nc5 $1 {[%cal Rc5d3]} 25. Qxc5 Qxa1+ 26. Bd1 Qe5+ 27. Kd2 Qg5+ {[%mdl 64] Double Attack} 28. Kc3 $2 {[%mdl 8192]} (28. Kd3 $11) 28... Qc1+ $19 29. Bc2 Qxh1 30. Bxh7+ Kxh7 31. Qxf8 Qxh2 {[%mdl 4096] Endgame KQ-KQ} 32. Qf3 Qe5+ 33. Kb3 Qb8+ 34. Ka4 {intending Qh3+.} Qe8+ 35. Ka5 Qd7 36. Qg3 $2 (36. Kb4) 36... d4 {[%cal Bd5d4,Bd4d3][%mdl 32] Hoping for ...d3.} 37. Qh2+ Kg8 {Strongly threatening ...d3.} 38. Qb8+ Kf7 39. Qf4+ Ke8 {Threatens to win with ...d3.} 40. Qh2 d3 41. Qh8+ Kf7 42. Qh5+ Kg8 {Accuracy: White = 45%, Black = 70%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.16"]
[White "Gaye, Gustavo"]
[Black "De Dovitiis, Alejo"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2001"]
[BlackElo "2314"]
[Annotator "TA"]
[PlyCount "48"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,48,0,41,-15,-19,-39,-39,-22,-23,-23,-35,-26,-27,-33,-11,-47,-60,-59,-19,-21,-27,-24,20,21,51,45,75,27,64,-33,-39,-54,-43,-94,-79,-140,-131,-802,-802,-794,-776]} 1. e4 g6 2. Nc3 Bg7 3. g3 c6 4. Bg2 Nf6 5. d3 d5 6. Nf3 {B06: Modern Defence.} ({Better is} 6. e5 $1 $14 Ng4 7. d4) 6... dxe4 $11 {[#]} 7. Nxe4 $146 ({Predecessor:} 7. dxe4 Qxd1+ 8. Kxd1 O-O 9. Ke1 e5 10. h3 Re8 11. Be3 Na6 12. a3 Bf8 13. Nd2 {0-1 (58) Porth,H (2130)-Becker,A (2125) Duesseldorf 2008}) 7... Nxe4 8. dxe4 {Black is slightly better.} Qxd1+ 9. Kxd1 Na6 {[%cal Bb8a6,Ba6c5,Bc5a4][%mdl 32]} 10. c3 Nc5 11. Ne1 f5 12. f3 fxe4 13. fxe4 Bg4+ 14. Kc2 O-O {Threatens to win with ...Rf2+.} 15. Be3 Na4 16. Rf1 b5 17. Nd3 Rfd8 18. Rf2 Rd7 19. Nc5 (19. h3 $14 Rad8 20. Nb4) 19... Nxc5 $15 20. Bxc5 Rad8 21. Be3 {[#]} (21. h3 $15 Bd1+ 22. Rxd1 Rxd1 23. Bxe7) 21... Bd1+ $1 $17 22. Kc1 (22. Rxd1 $142 Rxd1 23. Bxa7) 22... Ba4 {[%csl Ga4,Gd8][%cal Rd7d1]} 23. Rd2 $2 {[%mdl 8192]} (23. b3 $17 Rd1+ 24. Kb2) 23... Rxd2 $19 24. Bxd2 {[#]} Bh6 $1 {[%mdl 512] Accuracy: White = 42%, Black = 73%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.17"]
[White "Lopez Azambuja, Nicolas"]
[Black "Soto, Nicolas"]
[Result "1-0"]
[ECO "C18"]
[WhiteElo "2310"]
[BlackElo "2002"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,65,54,5,108,110,114,118,206,201,409,388,372,274,238,0,482,270,387,365,806,800,728,474,804,777,775,719,587,367,1173,1115,1118,1036,1838,1652,3488,5850,3559,3087,2311,1891,1735,1647]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Qc7 7. Qg4 Ne7 8. Qxg7 Rg8 9. Qxh7 cxd4 10. Ne2 dxc3 11. f4 Nbc6 12. Qd3 Bd7 13. Rb1 Rc8 {C18: French: 3 Nc3 Bb4: Main line: 7 h4 and 7 Qg4.} (13... d4 $11 {keeps the balance.}) 14. h4 $16 ({Of course not} 14. Nxc3 $6 Nxe5 15. fxe5 Qxc3+ 16. Qxc3 Rxc3 $11) 14... Nf5 15. h5 {[#]} Na5 $146 (15... Kf8 $16 {was necessary.}) ({Predecessor:} 15... a6 16. h6 Rh8 17. h7 Na5 18. Nd4 Qc4 19. Nxf5 exf5 20. Rb6 Qxd3 21. Bxd3 Rc6 {1-0 (37) Baklan,V (2609)-Kononenko,T (2371) Cappelle-la-Grande 2002}) 16. h6 $18 Qd8 $2 {[#]} (16... Rh8 17. h7 b6) 17. g4 Nh4 18. Qh7 Kf8 19. Qd3 $2 (19. a4 $18 {Ba3+ is the strong threat.} Qe7 20. Nd4) 19... Ng6 $2 {[%mdl 8192]} (19... Ke8 $1 $11 {and Black has nothing to worry.} 20. Qh3 Ng6) 20. Nd4 (20. h7 $142 Rh8 21. Qh3 (21. Nxc3 Qc7 $18)) 20... Qc7 (20... Ke8 $142 21. h7 Rh8) 21. Qe3 Nc4 $2 {[#]} (21... Nc6 22. Nb5 Qb6 23. Qxb6 axb6) 22. Bxc4 dxc4 23. a4 b6 (23... Ke8 $142 24. Ba3 Qa5) 24. Ba3+ Ke8 25. Bd6 Qb7 26. Rh2 Ne7 $2 (26... Nf8 27. h7 Nxh7 28. Rxh7 Qg2) 27. h7 {White is clearly winning.} Rh8 28. f5 exf5 29. Bxe7 Kxe7 30. Qg5+ Kf8 31. Qh6+ Ke8 32. Qg7 Qe4+ 33. Ne2 {Accuracy: White = 66%, Black = 23%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.18"]
[White "Montanu, Dan-Vladimir"]
[Black "Contin, Daniel"]
[Result "0-1"]
[ECO "A47"]
[WhiteElo "1983"]
[BlackElo "2267"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,75,-20,12,1,18,9,8,-10,65,-47,-45,-37,-44,-39,-48,-39,-44,-45,-47,-47,-14,-30,-16,-75,-60,-81,-53,-123,-120,-96,0,0,17,-19,0,0,12,0,90,78,80,82,76,8,96,-9,-5,-27,-37,-103,-35,-88,-104,-183,-172,-204,-204,-174,-187,-29993,-12231,-1954,-1241,-29996,-29995,-29995,-29996,-29999]} 1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 c5 5. c3 g6 6. Qb3 {A47: 1 d4 Nf6 2 Nf3 b6: Torre, London and Colle Systems.} Qc8 7. dxc5 bxc5 {[#]} 8. Bg5 $146 {The position is equal.} ({Predecessor:} 8. O-O c4 9. Qa4 Qc6 10. Qxc6 Nxc6 11. Na3 d5 12. Rd1 e6 13. Nb5 O-O-O 14. Ng5 {1-0 (53) Barbascu,M (2096)-Ciobanu,C (2234) Buzias 2002}) 8... Bg7 (8... c4 $11 9. Qb5 Ne4) 9. Bxf6 ({White should try} 9. Ne5 $14 Bxg2 10. Qxf7+ {[%mdl 64] Double Attack} Kd8 11. Rg1 (11. Qxg7 $2 Rg8 $19)) 9... Bxf6 $15 10. Nbd2 d5 11. O-O O-O 12. Rfe1 Nd7 13. Qc2 c4 14. Rac1 Nc5 15. b4 cxb3 16. axb3 (16. Nxb3 $11 Rb8 17. c4) 16... a5 $17 17. Nd4 Qd7 18. e4 (18. b4 $15 axb4 19. cxb4) 18... e5 19. Ne2 Ba6 (19... Bg5 $17 20. Red1 a4) 20. exd5 $11 Nd3 21. Ne4 Bg7 {Strongly threatening ...Rfc8.} 22. c4 Nxe1 23. Rxe1 f5 (23... Qb7 $11) 24. Nc5 $16 Qd6 25. Nxa6 Qxa6 26. Nc3 (26. c5 $16) 26... Rac8 (26... e4 $11) 27. Qa2 (27. Na4 $1 $16) 27... e4 $11 28. Nb5 Qb6 29. Qa3 (29. Rd1 $15) 29... Rc5 (29... f4 $17 {White must now prevent ...fxg3.} 30. Qa2 e3) 30. Bf1 (30. Qa2 $15) 30... f4 $1 $36 {[%mdl 2048] Black is on the roll.} 31. Re2 {[#]} (31. g4 $17 e3 32. Kh1) 31... e3 $1 $19 {[%mdl 512]} 32. gxf4 {[#]} (32. fxe3 f3) 32... exf2+ $1 33. Kg2 {And now Re6 would win.} Rxf4 34. Re6 $2 {[#]} (34. Re8+ $19 Bf8 35. Qb2) 34... Qd8 (34... Qxe6 $142 $1 {[%mdl 512]} 35. dxe6 Rg5+ 36. Kh3 Rf3+ 37. Kh4 Bf6 38. Qf8+ {[%mdl 64] Decoy} Kxf8 39. e7+ Bxe7 40. h3 Rgg3#) 35. Re3 Rxb5 36. cxb5 Qxd5+ {Black mates.} 37. Kh3 Rf3+ {[%mdl 64] Double Attack} 38. Kg4 Qh5# {Accuracy: White = 49%, Black = 68%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.19"]
[White "Michailov, Matias"]
[Black "Dotta, Gian Franco"]
[Result "1/2-1/2"]
[ECO "B92"]
[WhiteElo "2262"]
[BlackElo "2000"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,75,16,38,0,0,-18,-8,-17,-10,-11,0,8,0,-14,-20,-14,0,-25,0,0,4,-16,-18,-22,-18,-21,-13,-22,-17,-22,-20,-27,-14,-56,-58,-58,-27,-23,-2,-2,0,-29,-8,-8,-8,-8,-8,-8,-8,-11,-12,-29,-29,-29,-29,-65,-65,-65,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be6 8. O-O {8.Be3 is more advanced technology.} Nbd7 9. f3 {B92: Sicilian Najdorf: 6 Be2.} Be7 10. Nd5 Bxd5 11. exd5 b5 12. a4 Qb6+ 13. Kh1 {Hoping for axb5.} O-O {[#]} 14. axb5 $146 ({Predecessor:} 14. Qd3 b4 15. Rd1 Rfc8 16. Bg5 Qc7 17. Bxf6 Bxf6 18. Rac1 Bg5 19. Nd2 Nc5 20. Qf5 Bxd2 21. Rxd2 {0-1 (36) Ehlers,M (1958)-Zuferi,E (1853) Oberhof 2010}) 14... axb5 15. Rxa8 Rxa8 16. Qd3 Nc5 17. Nxc5 Qxc5 18. Qxb5 Qxc2 19. Bd3 Qc7 20. Bg5 Rc8 21. b4 Nxd5 {[#] And now ...Nc3 would win.} 22. Qxd5 Bxg5 23. g3 Qc6 24. Be4 Qxd5 25. Bxd5 $15 {[%mdl 4096] Endgame KRB-KRB} Rc1 26. Kg2 Rxf1 27. Kxf1 $11 {KB-KB} Be3 28. h4 Kf8 29. Ke2 Bg1 30. h5 Ke7 31. g4 g6 32. hxg6 fxg6 33. g5 Bh2 34. b5 Bf4 35. b6 {[#] b7 would kill now.} Kd7 36. Bg8 h6 (36... Kc6 $15) 37. gxh6 Bxh6 38. Bd5 {Accuracy: White = 84%, Black = 86%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.20"]
[White "Durante, Aurelio"]
[Black "Amura, Claudia"]
[Result "1/2-1/2"]
[ECO "B30"]
[WhiteElo "1955"]
[BlackElo "2245"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,78,29,35,33,-4,0,0,0,0,0,0,0,0,0,-37,-27,-49,-24,-32,-29,-25,-26,-30,-23,-13,-29,-4,-8,-13,-8,-24,-18,-18,-11,-18,-18,-18,0,0,0,4,108,108,105,112,108,80,150,88,92,81,89,71,88,83,76,66,131,108,107,54,122,107,101,0,0,0,0,0,7]} 1. e4 c5 2. Nf3 Nc6 3. c3 d5 4. exd5 Qxd5 5. d4 Bf5 6. Be3 Nf6 {B22: Sicilian: 2 c3.} 7. h3 e6 8. Na3 cxd4 9. Nb5 $1 {[%cal Rb5c7] Nc7+ is the strong threat.} O-O-O {[#]} 10. Nbxd4 $146 ({Predecessor:} 10. Nfxd4 Nxd4 11. Qxd4 Qxd4 12. Nxd4 Be4 13. f3 Bg6 14. Bg5 Bc5 15. Nb3 Bb6 16. c4 {0-1 (58) Ramirez,M (1994)-Madl,I (2347) Tromsoe 2014}) 10... Bc5 11. Qa4 Nxd4 $1 12. Nxd4 (12. cxd4 $5 {[%cal Ra1c1]} Bb6 13. Bc4 Qa5+ 14. Qxa5 Bxa5+ 15. Ke2 $11) 12... Bg6 13. Rd1 e5 (13... Bb6 {is more complex.} 14. Qc4+ Kb8 15. Qxd5 Nxd5 16. Bc1 e5) 14. Nf5 Qxd1+ 15. Qxd1 Rxd1+ 16. Kxd1 Bxe3 17. Nxe3 Ne4 18. Ke1 Nc5 19. h4 h5 20. Bc4 Nd3+ 21. Bxd3 $1 Bxd3 $11 {[%mdl 4096] Endgame KRB-KRN} 22. f3 Rd8 23. Kf2 g6 24. Rd1 e4 25. g4 Rf8 (25... exf3 $11 {keeps the balance.} 26. gxh5 gxh5) 26. gxh5 $16 gxh5 27. Nd5 f5 28. Nf4 Bc4 (28... Bc2 $142 29. Rc1 Ba4) 29. fxe4 (29. b3 $142 Bf7 30. Rd6) 29... fxe4 30. Ke3 $1 {[%csl LRe4,LRh5]} Rg8 31. b3 Bf7 32. Kxe4 Rg4 33. Rh1 Bd5+ (33... b5 $14) 34. Kxd5 Rxf4 {KR-KR} 35. Rh2 (35. Re1 $16) 35... Kd7 {[#]} ({Black should play} 35... Kc7 $14) 36. Ke5 $1 {[%cal Re5f4]} Rg4 {[#]} 37. c4 (37. Rd2+ $1 $16 Kc7 38. Rd4) 37... Kc6 $11 {The position is equal.} 38. Kf5 Kc5 39. Ke5 a6 {Accuracy: White = 79%, Black = 78%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.21"]
[White "Larrea, Manuel"]
[Black "Siddeley, Hugh"]
[Result "1/2-1/2"]
[ECO "B09"]
[WhiteElo "2243"]
[BlackElo "1974"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,63,54,-10,0,0,0,0,0,0,0,0,0,0,10,0,17,0,75,67,137,104,170,167,200,204,197,200,175,175,166,97,120,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Bd3 Na6 {[%cal Bb8a6,Ba6b4,Bb4d3][%mdl 32]} 7. O-O c5 8. d5 Bg4 9. Qe1 (9. Be2 $14) 9... Bxf3 {B09: Pirc Defence: Austrian Attack.} 10. Rxf3 Nb4 11. a3 Nxd3 12. cxd3 e6 13. f5 exf5 14. exf5 Ng4 {[#]} 15. Qg3 $146 ({Predecessor:} 15. fxg6 hxg6 16. Ne4 Re8 17. Qg3 f5 18. Bg5 Qd7 19. Nc3 Be5 20. Bf4 Qg7 21. Raf1 {0-1 (28) Cornelisse,J (2118)-Nijboer,F (2586) Bussum 2004}) 15... Ne5 16. Rf1 Kh8 (16... c4 $11) 17. Ne4 $16 {[#] Threatens to win with f6.} gxf5 (17... f6 $14) 18. Rxf5 f6 (18... Qb6 $16 {was worth a try.}) 19. Bd2 $18 Qe7 20. Bc3 Qf7 21. Bxe5 ({Stronger than} 21. Nxd6 Qd7 $11) 21... dxe5 22. d6 Qd5 23. Raf1 (23. Rh5 $18) 23... c4 24. Qh4 ({Better is} 24. Rd1 $16) 24... cxd3 $11 {The position is equal.} 25. Rh5 d2 26. Rxh7+ Kg8 27. Rxg7+ Kxg7 28. Qg4+ Kh8 29. Qh4+ Kg7 30. Qg4+ Kh8 31. Qh4+ Kg7 32. Qg4+ {Accuracy: White = 87%, Black = 73%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.22"]
[White "Pinero, Ismael"]
[Black "Carbone, Diego"]
[Result "1/2-1/2"]
[ECO "B48"]
[WhiteElo "1914"]
[BlackElo "2239"]
[Annotator "TA"]
[PlyCount "39"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,39,18,33,-14,-18,-112,-110,-123,-28,-36,-18,-13,-21,-28,0,0,229,237,659,666,452,425,411,405,799,760]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. Be3 a6 7. Bd3 Nf6 8. O-O b5 9. Re1 {B48: Sicilian: Taimanov: 5 Nc3 Qc7 6 Be3 a6 without Be2.} Bb7 10. Nd5 (10. Qd2 $11) 10... exd5 $17 11. exd5 {[#]Black is better.} Ne7 $146 ({Better is} 11... Ne5 $1 $17 12. f4 Nxd3 {[%mdl 64] Discovered Attack} 13. cxd3 Nxd5) ({Predecessor:} 11... Ne5 12. Bf4 d6 13. c4 bxc4 14. Qa4+ Qd7 15. Qxc4 Bxd5 16. Qb4 Be6 17. Bxe5 dxe5 {0-1 (35) Reis,N (1919)-Smit,J (2094) Bad Homburg 2009}) 12. c4 $11 bxc4 13. Rc1 $1 Bxd5 {...Qb7 is the strong threat.} 14. Bxc4 Qb7 15. Bxd5 $1 Nfxd5 $2 (15... Nexd5 $11 16. Bg5+ Kd8) 16. Bg5 $18 {Threatens to win with Nf5.} Rd8 $2 {[#]} (16... g6) 17. Nf5 $1 {[%cal Rf5d6]} d6 18. Bxe7 Bxe7 19. Qf3 Qa8 (19... Kf8 $142 20. Nxe7 Qxe7 21. Rxe7 Nxe7) 20. Nxg7+ {[%mdl 32768] Accuracy: White = 72%, Black = 28%. . An unexpected result.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.23"]
[White "Muniz, Rafael"]
[Black "Rodriguez Farias, Eduardo"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2232"]
[BlackElo "1963"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,59,0,0,17,23,16,0,37,37,43,35,43,44,45,8,43,25,19,0,8,-16,14,13,27,11,48,45,36,0,0,0,0,0,12,-16,62,56,989,985,963,977,976,971,989,960]} 1. e4 c5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 g6 5. d4 cxd4 6. Nxd4 Bg7 7. Nb3 d6 8. Bg2 O-O 9. O-O a6 {B70: Sicilian Dragon: 6 g3 and 6 Be2 (without a later Be3).} 10. h3 Qc7 11. Bg5 Be6 {The position is equal.} 12. Nd5 Bxd5 13. exd5 {[#]} Na5 $146 ({Predecessor:} 13... Ne5 14. Qe2 Rac8 15. c3 h6 16. Be3 Kh7 17. Rae1 Qc4 18. Bd4 Ng8 19. Qd1 Qd3 {1-0 (34) Dourerassou,J (2469)-Ditmas,H (1993) London 2014}) 14. Nxa5 Qxa5 15. Re1 Rfe8 16. c3 e5 17. Qd2 Rac8 18. a3 Qb5 19. Bf1 Qa4 20. c4 b5 21. Bxf6 Bxf6 22. cxb5 axb5 23. Rac1 e4 24. Rc6 $36 {[%mdl 2048] White has good play.} Be5 25. Rec1 e3 (25... Rb8 $11) 26. Qxe3 $14 Bd4 $2 {[%mdl 8192] [#]} (26... Ra8 $14) 27. Rxc8 $18 {White is clearly winning.} Bxe3 28. Rxe8+ Kg7 29. Rxe3 Qd4 30. Rc7 {Accuracy: White = 81%, Black = 49%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.24"]
[White "Rodriguez Buela, Martin"]
[Black "Shtemler, Lavi"]
[Result "0-1"]
[ECO "E00"]
[BlackElo "2199"]
[Annotator "TA"]
[PlyCount "32"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,70,-23,-20,-26,-20,-27,-24,-34,0,-24,-23,-49,-45,-58,-57,-79,-78,-132,-143,-137,-83,-145,-141,-313,-302,-306,-170,-181,-143,-143,-137,-134,-132,-113,-87,-112,-76,-150,-45,-48,-37,-49,-38,-56,-50,-81,-14,-20,-17,-145,-141,-147,-142,-388,-390,-386,-112,-110,-76,-1047,-1015,-29992,-29992]} 1. d4 e6 2. c4 Bb4+ 3. Bd2 a5 4. Bxb4 axb4 5. e4 d6 6. Nf3 {A40: Unusual replies to 1 d4.} Nf6 7. Nbd2 O-O {[#]} 8. Be2 $146 {Black has an edge.} ({Predecessor:} 8. Qc2 Qe7 9. Be2 e5 10. dxe5 dxe5 11. O-O c5 12. Rfe1 Nc6 13. Nb3 b6 14. Nfd2 {0-1 (45) Sherwin,J (2344)-Atalik,S (2551) Kallithea 2002}) 8... Nbd7 9. O-O e5 10. dxe5 dxe5 11. Qc2 Qe7 12. Rfd1 Nc5 13. h3 (13. Ne1 $142) 13... b6 $17 14. Ne1 h6 ({Better is} 14... Bb7 {[%cal Rf6e4]} 15. f3 Nh5) 15. f3 ({White should play} 15. Nd3) 15... Nh5 16. Nd3 $2 (16. Bf1 $17) 16... Bxh3 {Played: Qe7-g5} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.25"]
[White "El Ters, Antouan"]
[Black "Aguilar Samper, Valentin"]
[Result "1/2-1/2"]
[ECO "C15"]
[WhiteElo "2189"]
[BlackElo "1946"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,72,28,27,27,30,20,10,10,7,8,8,12,11,9,0,0,-2,0,-3,0,-20,-18,-158,-29,-22,0,0,27,16,35,33,36,39,31,18,39,11,29,7,18,0,4,0,14,21,19,10,19,10,10,10,197,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. exd5 exd5 5. Nf3 Ne7 6. Bd3 O-O {C01: French: Exchange Variation.} 7. O-O Bf5 8. Bg5 {Threatens to win with Bxf5.} f6 9. Bf4 Nbc6 10. Nb5 {[#]} Ba5 $146 ({Predecessor:} 10... Bxd3 11. Qxd3 Ba5 12. c3 a6 13. Na3 Qd7 14. Rae1 Rae8 15. Nc2 Qf5 16. Qd2 Ng6 {1-0 (26) Starostits,I (2470)-Goris,T (2021) Bad Woerishofen 2013}) 11. c3 Qd7 12. Qc2 Bxd3 13. Qxd3 Ng6 14. Bg3 Nce7 15. h3 c6 16. Nd6 {[#]} (16. Na3 $11) 16... b5 ({Worse is} 16... Bc7 17. Nxb7 Bxg3 18. Nc5 $14) (16... f5 $1 $17 {Hoping for ...f4.} 17. Be5 Bc7 18. Nxb7 Bxe5 {[%mdl 64] Discovered Attack}) 17. Rfe1 Bc7 18. Nf5 Nxf5 19. Bxc7 Rfe8 20. Bh2 Nd6 21. Bxd6 Qxd6 22. a4 b4 23. Qa6 bxc3 24. bxc3 Nf4 25. Rab1 Qd7 26. Kh2 Rxe1 (26... Reb8 {is more complex.} 27. Qf1 Rxb1 28. Rxb1 Re8 29. Qa6 Re7) 27. Nxe1 Rc8 28. Rb7 Rc7 29. Rxc7 Qxc7 30. g3 Qe7 $2 (30... Ne6 $11) 31. Nc2 $2 ({Weaker is} 31. Qxc6 Qxe1 32. Qc8+ Kf7 $11) (31. Nf3 $18) 31... Qe2 $1 $11 {[%cal Re2f2][%mdl 64] Double Attack. The position is equal.} 32. Qc8+ {[#]} Kf7 $1 {[%mdl 512]} 33. Qd7+ {[#]} Kg6 $1 {[%mdl 512]} 34. Qg4+ Kf7 35. Qd7+ {[#]} Kg6 $1 {[%mdl 512]} 36. Qg4+ Kf7 {Accuracy: White = 83%, Black = 82%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.26"]
[White "Coppola, Claudio"]
[Black "Alvarez Ramirez, Miguel Angel"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "2314"]
[BlackElo "2282"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,119,22,24,10,26,-8,21,25,8,17,14,8,18,12,32,24,35,0,0,0,104,0,36,33,36,28,82,41,35,20,62,50,41,47,145,67,82,75,103,72,370,366,360,351,450,438,462,395,394,387,592,586,822,809,791,737,716,593,696,670,706,699,704,664,871,961,1177,1113,976,1127,1143,1088,1123,1068,1126,1124,1095,1056,1046,0,0,0,1034,994,919,891,2008,2004,1928,1872,1725,1687,29978,29979,29979,29980,29984,29985,29985,29986,29986,29987,29988,29989,29991,29990]} 1. d4 Nf6 2. c4 e6 3. g3 c5 4. Nf3 cxd4 5. Nxd4 Qb6 6. Bg2 Bc5 7. e3 Nc6 8. Nb3 Bb4+ 9. Bd2 {A32: Symmetrical English: 2 Nf3 Nf6 3 d4 cxd4 4 Nxd4 e6.} Ne5 10. Qc2 O-O {[#]} 11. Bxb4 $146 {The position is equal.} ({Predecessor:} 11. O-O Bxd2 12. c5 Qc7 13. Qxd2 Rb8 14. Nc3 b5 15. f4 Nc4 16. Qd4 e5 17. Qd3 {0-1 (38) Telea,S (2154)-Turlea,C (1995) Ploiesti 2007}) 11... Qxb4+ {[%mdl 64] Double Attack} 12. N1d2 $1 d5 {[%cal Rd5c4]} 13. cxd5 exd5 14. O-O Bd7 15. Qc5 Qg4 16. Qd4 Qh5 17. Rfc1 Rac8 (17... Rfe8 $11) 18. Nc5 (18. Rxc8 $1 $16 Rxc8 19. Qxa7) 18... Bc6 19. Nd3 $36 {[%mdl 2048] White has the initiative.} Nxd3 20. Qxd3 Rfe8 (20... Ng4 $11 {remains equal.} 21. Nf3 d4) 21. b4 a6 22. a4 Ng4 23. h3 Ne5 24. Qd4 Bd7 (24... Qe2 $14) 25. g4 ({Stronger than} 25. Bxd5 Rcd8 $15) (25. Qxd5 Bc6 $11) (25. Rxc8 $1 $16 Bxc8 26. Qxd5) 25... Qh4 {[#]} 26. Rxc8 $1 ({Not} 26. Qxd5 Bc6 $17) ({Of course not} 26. Bxd5 $6 Qxh3 27. Bg2 Qxg4 $11) 26... Bxc8 27. Qxd5 Bxg4 $2 {[%mdl 8192]} (27... h5 $16 {was necessary.}) 28. hxg4 $18 Nxg4 {[#]} 29. Qf5 $1 Qh2+ 30. Kf1 h5 31. Nf3 Qc7 32. Qc5 Nh2+ (32... Qxc5 {was called for.} 33. bxc5 Rc8) 33. Ke2 Qb8 34. Qxh5 Nxf3 35. Bxf3 Qc8 36. Qc5 Qe6 37. Rd1 Rc8 38. Qd5 Rc2+ 39. Rd2 Rxd2+ 40. Kxd2 Qf6 41. Qxb7 Qb2+ 42. Ke1 Qc1+ 43. Bd1 Qc3+ 44. Kf1 Qd3+ 45. Be2 Qb1+ 46. Kg2 Qg6+ 47. Kf1 Qb1+ 48. Kg2 Qg6+ 49. Kh3 Qh6+ 50. Kg3 g5 51. Qc8+ Kg7 52. Qc3+ Kg8 53. Qd4 Kh7 54. b5 {White mates.} axb5 55. axb5 {[%cal Ba4b5,Bb5b6][%mdl 32]} Qf8 56. Bd3+ Kg8 57. b6 Qb8+ 58. Kg2 Qc8 59. Qe4 f5 60. Qc4+ {Accuracy: White = 80%, Black = 39%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.27"]
[White "Benoit, Rodrigo"]
[Black "Vieira, Alexandre Letizio"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2170"]
[BlackElo "1722"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,63,39,42,0,29,0,25,-1,36,46,53,72,73,73,82,75,81,69,73,28,37,22,28,22,28,27,27,34,110,65,123,55,78,70,202,192,326,308,452,457,579,382,832,851,789,789,2169,1836]} 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nf3 Nf6 5. O-O O-O 6. d4 cxd4 7. Nxd4 Nc6 8. Nc2 d6 9. Nc3 a6 10. h3 {A38: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3 Nf6.} Rb8 11. Rb1 Bd7 {[#]} 12. e4 $146 {White has an edge.} ({Predecessor:} 12. a4 Na5 13. b3 Qc8 14. Nd5 Nxd5 15. Qxd5 b5 16. Bd2 Bc6 17. Qg5 Bf6 18. Qe3 Bxg2 19. Kxg2 {½-½ (61) Luksza,A (2069)-Libersan,T (1996) Montreal 2019}) 12... Ne5 13. b3 (13. c5 $5) 13... Qc8 14. f4 Nc6 15. Kh2 $1 Ng4+ {[%mdl 64] Discovered Attack} 16. hxg4 Bxc3 17. g5 b5 18. Qd3 Bg7 19. Bd2 bxc4 20. bxc4 Rxb1 21. Rxb1 Qc7 22. Ne3 e6 (22... Qa7 $14) 23. Qa3 Rb8 {[#]} ({Better is} 23... f6 $14) 24. Rxb8+ (24. Rd1 $1 $16) 24... Qxb8 $14 25. Qxa6 Qb2 (25... h5 $14) 26. Qa8+ $18 Bf8 {[#]} (26... Qb8 $142 27. Qxb8+ Nxb8) 27. Ng4 $1 {[%cal Rg4f6]} Qb8 (27... Kg7 {was necessary.} 28. Nf6 Nb8) 28. Nf6+ Kg7 29. Qa4 Qc7 $2 (29... Qc8 30. e5 Nxe5) 30. Bc3 {And now Ne8+ would win.White is clearly winning.} e5 31. Bh3 exf4 32. Nxd7+ {Accuracy: White = 67%, Black = 32%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.28"]
[White "Moccero, Eduardo"]
[Black "Labrador Avendano, Angie Jhoana"]
[Result "1-0"]
[ECO "D04"]
[WhiteElo "1926"]
[BlackElo "1638"]
[Annotator "NA RC"]
[PlyCount "65"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 d5 {[%emt 0:03:00]} 2. Nf3 {[%emt 0:00:10]} Nf6 {[%emt 0:00:33]} 3. e3 {[%emt 0:00:32]} Bg4 {[%emt 0:02:28]} 4. h3 {[%emt 0:00:43]} Bh5 {[%emt 0:00:18]} 5. g4 {[%emt 0:00:10]} Bg6 {[%emt 0:00:20]} 6. Ne5 {[%emt 0:00:59] D04: Colle System.} Nbd7 {[%emt 0:02:10]} 7. h4 {[%emt 0:00:11]} h5 {[%emt 0:16:49]} (7... e6 $142) 8. Nxg6 {[%emt 0:01:06]} fxg6 {[%emt 0:00:07]} 9. Bd3 {[%emt 0:01:27]} Kf7 {[%emt 0:15:38]} 10. g5 {[%emt 0:01:56]} Ne4 {[%emt 0:03:16]} 11. Qf3+ {[%emt 0:01:20]} Kg8 {[%emt 0:03:34]} 12. Nd2 {[%emt 0:02:26] [#]} Qe8 $146 {[%emt 0:24:24]} ({Predecessor:} 12... e5 13. Nxe4 dxe4 14. Qxe4 Qe8 15. Qxg6 Qxg6 16. Bxg6 Bd6 17. Bd2 exd4 18. exd4 Nf8 {1-0 (42) Liesmann,K (2006)-Ringwelski,M (1998) Germany 2017}) 13. Nxe4 {[%emt 0:01:44]} dxe4 {[%emt 0:00:09]} 14. Qxe4 {[%emt 0:03:01]} c6 {[%emt 0:00:36]} 15. Qxg6 {[%emt 0:05:54]} Qxg6 {[%emt 0:03:29]} 16. Bxg6 {[%emt 0:00:16]} e6 {[%emt 0:00:35]} 17. Bd2 {[%emt 0:00:53]} Bd6 {[%emt 0:01:50]} 18. O-O-O {[%emt 0:01:15]} Kf8 {[%emt 0:00:23]} 19. f4 {[%emt 0:01:03]} Ke7 {[%emt 0:00:57]} 20. Rhf1 {[%emt 0:02:38]} Nf8 {[%emt 0:01:57]} 21. Bd3 {[%emt 0:00:23]} g6 {[%emt 0:00:27]} 22. Rf3 $18 {[%emt 0:03:32]} Rd8 {[%emt 0:05:55]} 23. e4 Bc7 24. f5 {[%emt 0:04:26]} Rg8 {[%emt 0:03:15]} 25. Bb4+ {[%emt 0:04:01]} Bd6 {[%emt 0:04:50]} 26. Bc3 {[%emt 0:00:30]} Bc7 {[%emt 0:04:35]} 27. fxe6 {[%emt 0:01:44]} Nxe6 {[%emt 0:00:15]} 28. Bc4 {[%emt 0:05:11]} Rgf8 29. Rdf1 Bf4+ {[%emt 0:02:02]} 30. Kb1 {[%emt 0:02:33]} Nxd4 {[%emt 0:00:23]} 31. Rxf4 {[%emt 0:00:37]} Rxf4 {[%emt 0:00:05]} 32. Rxf4 {[%emt 0:02:07]} Nb5 {[%emt 0:00:50]} 33. Bf6+ {[%emt 0:00:09]} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.29"]
[White "Santiso, Daniel"]
[Black "Cardozo, Lucas"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "1900"]
[BlackElo "2052"]
[Annotator "NA RC"]
[PlyCount "65"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} d5 {[%emt 0:02:14]} 2. Bf4 {[%emt 0:00:37]} e6 {[%emt 0:01:25]} 3. e3 {[%emt 0:01:14]} Nf6 {[%emt 0:03:30]} 4. Bd3 {[%emt 0:02:13]} b6 {[%emt 0:21:52]} 5. c3 {[%emt 0:12:09]} Ba6 {[%emt 0:07:32]} 6. Bxa6 {[%emt 0:02:00] [#] D00: 1 d4 d5: Unusual lines.} Be7 $146 {[%emt 0:13:24]} ({Predecessor:} 6... Nxa6 7. Qa4+ c6 8. Qxa6 Qd7 9. Qe2 Be7 10. Nf3 O-O 11. Ne5 Qc8 12. Nd2 c5 13. dxc5 bxc5 {1-0 (37) Ristoja,A (1558)-Cassidy,S (1599) Mali Losinj 2019}) 7. Bb7 {[%emt 0:00:33]} Nbd7 {[%emt 0:06:43]} 8. Bxa8 {[%emt 0:00:17]} Qxa8 {[%emt 0:00:09]} 9. Bxc7 {[%emt 0:00:33]} Qc6 {[%emt 0:00:14]} 10. Be5 {[%emt 0:02:31]} Qb5 {[%emt 0:14:16]} 11. Qe2 {[%emt 0:00:48]} Qc6 {[%emt 0:02:27]} 12. Nd2 {[%emt 0:01:42]} O-O {[%emt 0:02:29]} 13. Ngf3 {[%emt 0:02:05]} Ne4 {[%emt 0:03:12]} 14. Nxe4 {[%emt 0:03:03]} dxe4 {[%emt 0:00:08]} 15. Nd2 {[%emt 0:00:08]} Nxe5 {[%emt 0:05:12]} 16. dxe5 {[%emt 0:00:11]} Qd5 {[%emt 0:00:13]} 17. Qc4 {[%emt 0:03:27]} Qxe5 {[%emt 0:04:31]} 18. Qxe4 {[%emt 0:00:52]} Qb5 {[%emt 0:00:14]} 19. Qc2 {[%emt 0:07:03]} Rd8 {[%emt 0:03:24]} 20. Rd1 {[%emt 0:01:59]} Qd5 {[%emt 0:03:06]} 21. Nf3 {[%emt 0:00:46]} Qxa2 {[%emt 0:00:22]} 22. Rxd8+ {[%emt 0:00:10]} Bxd8 {[%emt 0:00:10]} 23. O-O {[%emt 0:00:05]} Bf6 {[%emt 0:01:16]} 24. Rd1 {[%emt 0:00:55]} g6 {[%emt 0:01:02]} 25. h3 {[%emt 0:00:26]} Kg7 {[%emt 0:00:17]} 26. Nd2 {[%emt 0:01:12]} b5 {[%emt 0:01:33]} 27. Ne4 {[%emt 0:00:25]} Be7 {[%emt 0:00:28]} 28. Rd7 {[%emt 0:00:53]} Ba3 {[%emt 0:01:42]} 29. Qd2 $18 {[%emt 0:04:06]} Qb1+ {[%emt 0:00:30]} 30. Kh2 {[%emt 0:00:23]} Qxe4 {[%emt 0:00:13]} 31. bxa3 {[%emt 0:00:09]} Qa4 {[%emt 0:00:49]} 32. Qd4+ {[%emt 0:00:16]} Qxd4 {[%emt 0:00:05]} 33. exd4 {[%emt 0:00:15]} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.30"]
[White "Reolon, Victor"]
[Black "Avedisian, Alexander"]
[Result "0-1"]
[ECO "D71"]
[WhiteElo "1644"]
[BlackElo "1892"]
[Annotator "NA RC"]
[PlyCount "104"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:31]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:19]} g6 {[%emt 0:00:00]} 3. g3 {[%emt 0:00:45]} Bg7 {[%emt 0:00:02]} 4. Bg2 {[%emt 0:00:08]} O-O {[%emt 0:00:16]} 5. Nf3 {[%emt 0:00:26]} d6 {[%emt 0:00:16]} 6. b3 {[%emt 0:01:51]} c5 {[%emt 0:00:36]} 7. Bb2 {[%emt 0:01:08]} Nc6 {[%emt 0:00:34] 7...Qa5+ is a critical line.} 8. d5 {[%emt 0:04:16] E60: King's Indian: Unusual lines and Fianchetto Variation without Nc3.} Na5 {[%emt 0:04:50]} 9. Nbd2 {[%emt 0:05:18] [#]} b5 $146 {[%emt 0:02:31]} ({Predecessor:} 9... a6 10. O-O Rb8 11. Re1 b5 12. Rc1 Bd7 13. e4 e5 14. dxe6 Bxe6 15. e5 Ng4 16. cxb5 axb5 {1-0 (31) Bispo,L (2223)-Chang,S (2098) Guarapari 2017}) 10. a3 {[%emt 0:10:10]} ({White should try} 10. Bc3 $14) 10... Rb8 {[%emt 0:03:24]} 11. cxb5 {[%emt 0:04:49]} Rxb5 {[%emt 0:07:49]} 12. O-O {[%emt 0:00:40]} Nxd5 {[%emt 0:02:09]} 13. Bxg7 {[%emt 0:02:43]} Kxg7 {[%emt 0:00:09]} 14. Qc2 {[%emt 0:09:41]} Kg8 {[%emt 0:07:55]} 15. Rfb1 {[%emt 0:06:37]} Ba6 {[%emt 0:07:17]} 16. Ng5 {[%emt 0:02:35]} e6 {[%emt 0:10:10]} 17. h4 {[%emt 0:02:00]} Nc6 {[%emt 0:02:31]} 18. e3 {[%emt 0:05:07]} Ne5 {[%emt 0:03:25]} 19. Nc4 {[%emt 0:05:37]} Ng4 {[%emt 0:09:39]} 20. Bh3 {[%emt 0:05:51]} Ngf6 {[%emt 0:04:51]} 21. Rd1 {[%emt 0:02:43]} Ne8 $2 {[%emt 0:16:47] [#]} (21... Rb8 $1 $11 {and Black stays safe.}) 22. Nxe6 $1 {[%emt 0:10:54]} Nxe3 {[%emt 0:00:22]} 23. Nxe3 {[%emt 0:05:27]} ({Stronger than} 23. Nxd8 Nxc2 24. Rab1 Nd4 $17) (23. fxe3 fxe6 24. Bxe6+ Kg7 $11) 23... fxe6 {[%emt 0:00:14]} 24. Bxe6+ {[%emt 0:00:18]} Kg7 {[%emt 0:00:44] [#]} 25. Ng4 {[%emt 0:03:01]} ({Not} 25. a4 Rb8 $14) (25. Bc4 $1 $18) 25... Rb6 {[%emt 0:02:41] [#]} (25... h5 $16) 26. Qd2 {[%emt 0:00:42]} ({Better is} 26. b4 $1 $18 {[%cal Rb4c5]} c4 27. Qb2+ (27. Bxc4 Nf6 $16) 27... Nf6 28. Rac1) 26... Qe7 {[%emt 0:02:12]} (26... Kh8 $16) 27. Re1 {[%emt 0:00:10]} Kh8 {[%emt 0:02:07]} 28. Bd5 {[%emt 0:01:43]} Qg7 {[%emt 0:00:34]} 29. Rab1 {[%emt 0:01:12]} Bc8 {[%emt 0:01:06]} 30. Qe2 {[%emt 0:02:34]} Nf6 {[%emt 0:00:46]} 31. Nxf6 {[%emt 0:00:26]} Qxf6 {[%emt 0:00:09]} 32. Qb2 {[%emt 0:00:33]} Qxb2 {[%emt 0:00:52]} 33. Rxb2 {[%emt 0:00:01]} Bb7 {[%emt 0:01:04]} 34. Bxb7 {[%emt 0:00:55]} Rxb7 {[%emt 0:00:05]} 35. Re6 {[%emt 0:00:49]} Rd8 {[%emt 0:01:29]} 36. Re3 {[%emt 0:02:33]} c4 {[%emt 0:00:47]} 37. b4 {[%emt 0:01:05]} d5 {[%emt 0:00:24]} 38. Rbe2 {[%emt 0:00:13]} d4 {[%emt 0:01:10]} 39. Rd2 {[%emt 0:00:45]} Kg7 {[%emt 0:00:23]} 40. Re4 {[%emt 0:00:11]} Rbd7 {[%emt 0:00:39]} 41. Kf1 {[%emt 0:00:32]} c3 {[%emt 0:01:15]} 42. Rd3 {[%emt 0:01:12]} Rc8 {[%emt 0:02:04]} 43. Re1 {[%emt 0:00:33]} Kf6 {[%emt 0:01:22]} 44. Rf3+ {[%emt 0:00:32]} Kg7 {[%emt 0:00:16]} 45. Rd3 {[%emt 0:00:09]} Rc6 {[%emt 0:01:19]} 46. Rc1 {[%emt 0:01:11] [#]} Kf6 $19 {[%emt 0:00:29]} 47. Re1 {[%emt 0:00:16]} Kf5 {[%emt 0:01:22]} 48. Rf3+ {[%emt 0:00:34]} Kg4 {[%emt 0:00:55]} 49. Kg2 {[%emt 0:00:30]} c2 {[%emt 0:01:20]} 50. Rf4+ {[%emt 0:01:55]} Kh5 {[%emt 0:00:08]} 51. g4+ {[%emt 0:00:39]} Kh6 {[%emt 0:00:14]} 52. Rc1 {[%emt 0:00:28]} d3 {[%emt 0:00:12]} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.31"]
[White "Pustilnik, Iber"]
[Black "Vassallo, Julio"]
[Result "1-0"]
[ECO "E06"]
[WhiteElo "1892"]
[BlackElo "1630"]
[Annotator "NA RC"]
[PlyCount "53"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. Nf3 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. d4 {[%emt 0:00:00]} e6 {[%emt 0:00:11]} 3. c4 {[%emt 0:00:00]} d5 {[%emt 0:00:35]} 4. g3 {[%emt 0:00:00]} Be7 {[%emt 0:00:59]} 5. Bg2 {[%emt 0:00:00]} O-O {[%emt 0:00:29]} 6. O-O {[%emt 0:01:01]} dxc4 {[%emt 0:00:35]} 7. a4 {[%emt 0:01:11] [#] E05: Open Catalan: 5 Nf3 Be7.} a5 $146 {[%emt 0:05:43]} ({Predecessor:} 7... Nc6 8. a5 Rb8 9. Qc2 Nxd4 10. Nxd4 Qxd4 11. Rd1 Qc5 12. Be3 Qb4 13. Ra4 Qb3 14. Rxc4 Qxc2 15. Rxc2 {½-½ (24) Caruana,F (2822)-Dominguez Perez,L (2739) Saint Louis 2018}) 8. Qc2 {[%emt 0:04:29]} Na6 {[%emt 0:04:18]} 9. Qxc4 {[%emt 0:02:44]} Rb8 {[%emt 0:05:42]} 10. Nc3 {[%emt 0:04:49]} b6 {[%emt 0:07:55]} 11. Ne5 {[%emt 0:17:05]} Nb4 {[%emt 0:14:49]} 12. Nb5 {[%emt 0:24:20]} Ba6 {[%emt 0:15:25]} 13. Bd2 {[%emt 0:08:17]} Rc8 {[%emt 0:17:19]} 14. Bxb4 Bxb4 {[%emt 0:00:24]} 15. Nc6 {[%emt 0:05:23]} Bxb5 {[%emt 0:06:55]} 16. axb5 {[%emt 0:01:41]} Qd7 {[%emt 0:07:46]} 17. e4 {[%emt 0:11:13]} Rfe8 {[%emt 0:04:16]} 18. Rfd1 {[%emt 0:01:01]} h6 {[%emt 0:03:01]} 19. Rac1 $18 {[%emt 0:01:34]} ({Don't play} 19. Nxb4 $6 axb4 20. Qxb4 Red8 $16) 19... Kh8 {[%emt 0:01:02]} 20. Na7 {[%emt 0:01:59]} c5 {[%emt 0:00:58]} 21. Nxc8 {[%emt 0:00:47]} Qxc8 {[%emt 0:00:11]} 22. d5 {[%emt 0:00:26]} exd5 {[%emt 0:00:31]} 23. exd5 {[%emt 0:00:13]} Qf5 {[%emt 0:01:14]} 24. Qf4 {[%emt 0:05:09]} Qxf4 {[%emt 0:00:39]} 25. gxf4 {[%emt 0:00:07]} Re2 {[%emt 0:00:11]} 26. d6 {[%emt 0:00:23]} Nd7 {[%emt 0:00:43]} 27. Bc6 {[%emt 0:00:31]} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "2.32"]
[White "Pelaez, Diego"]
[Black "Belistri, Ubaldo"]
[Result "1/2-1/2"]
[ECO "A70"]
[WhiteElo "1607"]
[BlackElo "1877"]
[Annotator "NA RC"]
[PlyCount "73"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 8,70,77,53,32767,32767,32767,63,61,32767,50,32767,0,-8,0,0,0,32767,32767,32767,32767,4,9,32767,32767,32767,32767,32767,0,32767,-8,32767,32767,163,170,144,144,32767,32767,160,161,51,47,40,399,160,32767,32767,32767,32767,32767,32767,32767,10,8,8,12,0,0,0,0,0,32767,0,0]} 1. d4 {[%emt 0:02:22]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:27]} c5 {[%emt 0:00:17]} 3. d5 {[%emt 0:00:10]} e6 {[%emt 0:00:33]} 4. Nc3 {[%emt 0:00:16]} exd5 {[%emt 0:00:27]} 5. cxd5 {[%emt 0:00:21]} d6 {[%emt 0:00:25]} 6. e4 {[%emt 0:00:11]} g6 {[%emt 0:00:18]} 7. Nf3 {[%emt 0:01:33]} Bg7 {[%emt 0:00:14]} 8. Bb5+ {[%emt 0:02:13]} Bd7 {[%emt 0:03:16]} 9. Bxd7+ {[%emt 0:06:41]} Nbxd7 {[%emt 0:08:11]} 10. O-O {[%emt 0:00:26]} O-O {[%emt 0:00:26] A70: Modern Benoni: 6 e4 g6 7 Nf3.} 11. Bf4 {[%emt 0:02:57]} Re8 {[%emt 0:02:43]} 12. Re1 {[%emt 0:00:51]} Qb6 {[%emt 0:01:05]} 13. Rb1 {[%emt 0:02:03] [#]} Nh5 $146 {[%emt 0:01:05]} ({Predecessor:} 13... Ng4 14. Nd2 Nge5 15. Qe2 a6 16. Be3 Nf6 17. h3 Qc7 18. f4 Ned7 19. a4 Rab8 {0-1 (54) Straub,N (2316)-Alexandrova,O (2265) Alushta 1999}) 14. Bd2 {[%emt 0:07:09]} Ne5 {[%emt 0:04:40]} 15. Nxe5 {[%emt 0:03:42]} Bxe5 {[%emt 0:00:22]} 16. Qg4 {[%emt 0:05:33]} Qd8 {[%emt 0:06:44]} 17. f4 {[%emt 0:04:14]} Bd4+ {[%emt 0:04:18]} 18. Kh1 {[%emt 0:00:36]} Nf6 {[%emt 0:04:40]} 19. Qf3 {[%emt 0:03:58]} b5 {[%emt 0:03:04]} 20. Nxb5 {[%emt 0:02:50]} Qb6 {[%emt 0:02:33]} 21. Nxd4 {[%emt 0:00:15]} cxd4 {[%emt 0:00:14]} 22. e5 {[%emt 0:01:39]} Nh5 {[%emt 0:03:47]} 23. e6 {[%emt 0:03:09]} f5 {[%emt 0:00:20] [#]} 24. g4 {[%emt 0:11:13]} (24. Red1 $1 $18) 24... fxg4 {[%emt 0:00:45]} 25. Qxg4 {[%emt 0:00:18]} Nf6 $2 {[%emt 0:00:19]} ({Better is} 25... Qb5 $14) 26. Qg2 {[%emt 0:00:30]} (26. Qg5 $18 {and the rest is easy.}) 26... Qb7 {[%emt 0:01:03]} 27. Rg1 {[%emt 0:06:57]} Rac8 {[%emt 0:09:11]} 28. f5 {[%emt 0:06:19]} Rc2 {[%emt 0:02:14]} 29. fxg6 {[%emt 0:01:16]} Qxd5 {[%emt 0:00:22]} 30. gxh7+ {[%emt 0:06:21]} Kxh7 {[%emt 0:01:41]} 31. Qxd5 {[%emt 0:00:37]} Nxd5 {[%emt 0:00:19]} 32. Rg2 {[%emt 0:00:31]} Rxe6 {[%emt 0:00:54]} 33. Rbg1 {[%emt 0:00:29]} Ne3 {[%emt 0:02:42]} 34. Rg7+ {[%emt 0:01:45]} Kh6 {[%emt 0:00:51] [#]} 35. R7g3 $11 {[%emt 0:01:35]} ({White should try} 35. R7g4 $1 $16 {[%cal Rg4h4]} Kh7 36. Rxd4) 35... Kh7 {[%emt 0:02:34]} 36. Rg7+ {[%emt 0:01:05]} Kh6 {[%emt 0:00:21]} 37. R7g3 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.1"]
[White "Delgado Ramirez, Neuris"]
[Black "Acosta, Pablo Ismael"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2634"]
[BlackElo "2416"]
[Annotator "TA"]
[PlyCount "132"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,132,15,5,26,21,27,8,17,-21,-18,-17,37,47,35,15,12,8,21,32,32,31,49,53,45,10,16,21,11,4,51,50,50,18,18,0,0,0,0,0,0,-28,-23,-89,-88,-193,-189,-234,-234,-218,-224,-215,-213,-213,-206,-568,-530,-715,-534,-901,-483,-435,-8,-8,-8,-8,-8,-8,-8,-8,-8,-74,-65,-74,-74,-74,-74,-430,-430,-430,-430,-430,-41,-41,-41,-41,-41,-41,-22,-74,-74,-29948,-29948,-29952,-29956,-29957,-29959,-29960,-29962,-29970,-29971,-29972,-12438,-29954,0,-29972,-29956,-29969,-29950,-29966,-29943,-12841,-12819,-12848,-12850,-29948,-29948,-12802,-12732,-7050,-6592,-7239,-6996,-29978,-29979]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Nb3 e6 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} 7. g4 b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 8. Bg2 {Strongly threatening e5!} Bb7 {The position is equal.} 9. g5 b4 10. Nd5 Nxd5 (10... exd5 $11 11. gxf6 dxe4) 11. exd5 $14 Be7 12. Qg4 Bxd5 13. Bxd5 exd5 {[#]} 14. Be3 $146 ({Predecessor:} 14. Qxb4 O-O 15. Qb7 Nd7 16. Qxd5 Rc8 17. c3 Nb6 18. Qg2 Qd7 19. O-O Nc4 20. Nd4 {½-½ (126) Pultinevicius,P (2465)-Abdusattorov,N (2558) Batumi 2018}) 14... Nc6 15. O-O-O Qc8 16. Qxc8+ Rxc8 17. Nd4 Nxd4 18. Rxd4 {[%mdl 64] Double Attack} Rc4 19. Rhd1 h6 20. gxh6 g5 21. Rxd5 (21. h4 $5 Rxd4 22. Rxd4 gxh4 23. Rxd5 $14) 21... Rxh6 22. b3 Rg4 23. Re1 Re4 24. Kd1 Rxh2 25. Ra5 g4 26. Rxa6 (26. Ba7 $11 Rxe1+ 27. Kxe1) 26... f5 $1 $17 27. Ra7 (27. a4 $17 {was worth a try.}) 27... Bf6 $1 $19 28. Bb6 Bc3 {[%csl Gc3][%cal Re4e1]} 29. Rxe4+ fxe4 {[%mdl 4096] Endgame KRB-KRB} 30. Ke2 g3 $1 {[%cal Rg3g2]} 31. Kf1 gxf2 32. Ra5 $2 (32. Be3) 32... Bd2 33. Ra8+ Kf7 34. Ra7+ Ke6 35. Ra8 e3 $2 {[#]} ({Black should play} 35... Ke7 $19 36. Ra7+ Kf6 37. Bd4+ Ke6) 36. Bxe3 $1 $11 {[%mdl 512]} Bxe3 {KRB-KR} 37. Re8+ Kd5 38. Rxe3 {KR-KR} Rh1+ 39. Kxf2 Rh2+ 40. Ke1 (40. Kf3 $1 $11) 40... Rxc2 $17 41. Rh3 Kc5 42. Rh8 {aiming for Rc8+.} Rxa2 43. Rc8+ $2 {[%mdl 8192]} (43. Kd1 $17 {was the crucial defense.}) 43... Kd4 $1 $19 44. Rc4+ Ke3 45. Kd1 Rd2+ $2 (45... d5 $19 46. Rh4 Kd3 47. Rh3+ Ke4) 46. Kc1 $15 Rd4 47. Rc6 Kd3 48. Kb2 Kd2 49. Rc2+ (49. Rb6 $11 {remains equal.}) 49... Ke3 $1 $17 {( -> ...Rd2)} 50. Rc6 $2 {[%mdl 8192]} (50. Kc1 $17) 50... d5 $1 51. Rb6 Rh4 52. Rb5 Rh2+ 53. Kc1 d4 54. Re5+ {[#]} Kd3 $1 {[%cal Rd3c3]} 55. Rc5 Ke4 (55... Rh1+ $142 56. Kb2 Kd2 57. Rc4 d3 58. Rc6 Re1 59. Rh6 Ke2 60. Rh2+ Kd1 61. Rh4 Re2+ 62. Kb1 d2 63. Rh3 Re1 64. Kb2 Ke2 65. Rh2+ Kd3 66. Rh3+ Re3 67. Rh1 Rg3 68. Rb1 Ke2 69. Kc2 {[#]} d1=Q+ $1 {[%mdl 512]} 70. Rxd1 Rc3+ 71. Kb1 Kxd1 72. Kb2 Rg3 73. Ka2 Kc2 74. Ka1 Rxb3 75. Ka2 Ra3#) 56. Rc8 Kd3 $2 (56... Ke3 {mates} 57. Re8+ Kd3 58. Rd8 Kc3 59. Kd1 Rb2 60. Rd7 Rf2 61. Rd8 Rd2+ 62. Kc1 Rc2+ 63. Kb1 Rf2 64. Rc8+ Kxb3 65. Kc1 Rf1+ 66. Kd2 Kb2 67. Re8 b3 68. Rb8 Ra1 69. Rb4 Ka3 70. Rb7 b2 71. Kd3 Rd1+ 72. Ke4 d3 73. Rh7 b1=Q 74. Ra7+ Kb3 75. Kd5 Re1 76. Rd7 Qa2 77. Rd6 Kb4+ 78. Kc6 Qa4+ 79. Kb6 Qb5+ 80. Kc7 Re7+ 81. Kc8 Qb7+ 82. Kd8 Qc7#) 57. Rc7 $2 {[%mdl 8192]} (57. Rc5 $11) 57... Rh5 58. Rc8 Rh4 59. Rc7 Ke3 60. Re7+ Re4 61. Rb7 d3 62. Kd1 Rh4 {[%cal Rh4h1]} 63. Re7+ Kd4 64. Rc7 Rh1+ 65. Kd2 Rh2+ 66. Kc1 Rc2+ {Accuracy: White = 47%, Black = 78%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.2"]
[White "Mussanti, Diego"]
[Black "Hernandez Guerrero, Gilberto"]
[Result "0-1"]
[ECO "B61"]
[WhiteElo "2330"]
[BlackElo "2557"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,70,56,70,-90,-95,-93,-91,-96,-110,-85,-95,-105,-98,-99,-70,-71,0,0,0,0,0,-45,-39,-65,-61,-69,-56,-89,-95,-141,-133,-161,-156,-182,-179,-210,-211,-273,-271,-275,-257,-373,-352,-363,-332,-349,-344,-680,-668,-631,-489,-764,-782]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 Bd7 7. Qd2 Rc8 8. O-O-O Nxd4 9. Qxd4 Qa5 10. f4 Rxc3 11. Bxf6 $2 {B61: Sicilian: Richter-Rauzer: 6...Bd7 7 Qd2.} (11. bxc3 $14 e5 12. Qd3) 11... Rc7 $17 12. Bh4 ({Don't blunder} 12. Bxg7 $2 {[#]} e5 $1 $19 {[%mdl 512]}) 12... Qxa2 13. e5 {[%cal Re5d6] Black is better.} Qa1+ 14. Kd2 Qa5+ 15. b4 dxe5 16. fxe5 Qa4 17. Bd3 $1 {[#]} a5 $146 (17... Qc6 $17) ({Predecessor:} 17... e6 18. c3 Qa2+ 19. Ke3 Qd5 20. Ra1 a6 21. Qxd5 exd5 22. Kd4 Be7 23. Bxe7 Kxe7 {½-½ (45) Kallio,H (2493)-Bui,V (2463) Budapest 2003}) 18. Ra1 $11 Qxb4+ 19. Qxb4 axb4 20. Ra8+ (20. e6 $5 fxe6 21. Bg3 $11) 20... Rc8 21. Rha1 g6 22. Rxc8+ Bxc8 23. Bb5+ Kd8 24. Ra4 Bh6+ 25. Kd3 Bf4 26. Ke4 Bxh2 27. Rxb4 Bf5+ 28. Kd5 g5 ({Weaker is} 28... Bxc2 29. Bf2 $14) 29. Bf2 {intending Bb6+.} Kc7 {[#] White must now prevent ...Rd8+.} 30. g3 (30. Bd4 {was necessary.}) 30... Rd8+ $19 31. Kc4 Rd2 ({Much less strong is} 31... Bxc2 32. Kc3 $19) 32. Bb6+ Kb8 33. Kc3 $2 (33. Be3 Rxc2+ 34. Kd4) 33... Rxc2+ {Black is clearly winning.} 34. Kb3 Rc1 35. Rd4 (35. Be3 $142 Rb1+ 36. Kc4) 35... Bxg3 {Accuracy: White = 37%, Black = 89%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.3"]
[White "Tristan, Leonardo"]
[Black "Menna Barreto, Felipe Kubiaki"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2533"]
[BlackElo "2395"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,53,1,0,-6,13,18,4,0,0,0,14,18,27,21,16,13,177,192,179,150,379,333,469,459,525,522,677,658,652,498,618,479,2280,2227,1813,1711,29990,29991,29991,29992,29993,29993]} 1. d4 d5 2. Bf4 c5 3. e3 Nc6 4. Nf3 Nf6 5. Nbd2 e6 6. c3 Bd6 7. Bg3 O-O 8. Bb5 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} Bxg3 9. hxg3 Qb6 10. a4 {The position is equal.} h6 11. Qc2 {[#]} Ng4 $146 ({Predecessor:} 11... Bd7 12. Ne5 Rfc8 13. Bxc6 Bxc6 14. Nb3 cxd4 15. exd4 Be8 16. Nc5 Ne4 17. Nxe4 dxe4 {1-0 (44) Naroditsky,D (2646)-Xiong,J (2674) chess.com INT 2017}) 12. Bxc6 Qxc6 13. Ne5 Nxe5 14. dxe5 $40 {[%mdl 128] Black needs to defend precisely.} f6 $2 {[#]} (14... f5 $11 {and Black stays safe.}) 15. Rxh6 $1 $18 {[%mdl 512] aiming for Qh7+.} f5 (15... gxh6 16. Qg6+) 16. Rh2 b5 $2 (16... Bd7 $16 {was necessary.} 17. g4 Kf7) 17. Nf3 bxa4 (17... Kf7 {was worth a try.} 18. axb5 Qxb5) 18. Ng5 a3 19. Qd1 {White threatens Qh5 and mate.} g6 20. Rh6 Kg7 21. Rh7+ Kg8 22. Rxa3 {[%cal Ba1a3,Ba3b3,Bb3b7,Bb7d7][%mdl 32]} Bd7 (22... d4 $142 23. exd4 a5) 23. Kd2 {White wants to mate with Qh1.} Qb6 24. Rb3 Qd8 25. Rb7 {White mates.} Qxg5 26. Rbxd7 {[%csl Gh7][%cal Rd7g7]} Rfd8 27. Qh1 {Accuracy: White = 95%, Black = 42%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.4"]
[White "De Dovitiis, Alejo"]
[Black "Lima, Darcy"]
[Result "1/2-1/2"]
[ECO "D05"]
[WhiteElo "2314"]
[BlackElo "2526"]
[Annotator "TA"]
[PlyCount "133"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,133,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-3,-3,-13,0,0,0,0,0,0,0,0,0,0,11,0,0,0,0,0,0,0,26,37,28,8,12,9,33,0,0,0,51,0,39,42,54,46,62,53,47,54,43,5,607,530,625,618,590,582,574,558,537,537,530,518,491,417,397,350,2148,1666,2112,2103,1920,1694,1714,1627,933,917,872,747,2650,1894,1911,1710,1527,1030,29973,29974,29981,36,36,36,36,36,36,36,36,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. Nf3 e6 3. e3 Nf6 4. Bd3 b6 5. O-O Bb7 6. b3 Nbd7 7. Bb2 Bd6 8. Ne5 O-O 9. Nd2 Ne4 10. Nxe4 {D05: Colle System with ...e6.} dxe4 11. Bb5 Nxe5 12. dxe5 Bc5 {[#]} 13. Qxd8 $146 ({Predecessor:} 13. Qg4 Qe7 14. a3 a6 15. Be2 b5 16. c4 bxc4 17. Bxc4 Rfd8 18. Rfc1 Rd7 19. b4 {½-½ (41) Stefanova,A (2506)-Szczepkowska,K (2406) Germany 2017}) 13... Rfxd8 14. Rfd1 Kf8 15. a3 a5 16. a4 Ke7 17. Kf1 f5 18. h4 Ba6 (18... g6 {looks sharper.} 19. Ke2 Rd5 20. Bc4 Rxd1 21. Rxd1 Bb4) 19. Bxa6 Rxa6 20. Rxd8 Kxd8 $11 {[%mdl 4096] Endgame KRB-KRB} 21. Ke2 Ra8 22. h5 Ke7 23. Rg1 Rf8 24. Bc1 Rf7 25. Bd2 Kd7 26. c3 Be7 27. b4 Bd8 28. bxa5 bxa5 29. g4 c6 30. c4 Bc7 31. gxf5 exf5 32. Rb1 Bxe5 (32... Ke6 $11) 33. Rb7+ (33. Bxa5 $14 Kd6 34. Bb6) 33... Bc7 34. Bxa5 Kc8 35. Ra7 Rd7 36. Bxc7 Rxc7 $14 {KR-KR} 37. Ra8+ Kd7 38. a5 {[%cal Ba4a5,Ba5a6][%mdl 32]} Rb7 $2 {[%mdl 8192]} (38... Kd6 $11) 39. a6 $18 Rb2+ 40. Kf1 Ra2 41. a7 Kc7 42. Rg8 Rxa7 43. Rxg7+ Kb6 {[#]} 44. c5+ $1 {[%mdl 512]} Ka6 (44... Kxc5 45. Rxa7) 45. h6 Ra8 46. Rxh7 Rf8 $2 (46... Kb5 47. Rf7 Rh8) 47. Rg7 Rf6 48. h7 Rh6 49. Kg2 Kb5 50. Kg3 Kxc5 51. Kf4 Rh5 52. Ke5 Kc4 53. Kf6 Kd3 54. Kg6 Rh2 55. Rc7 Ke2 56. Rxc6 Kf3 57. Kg7 $2 (57. Rc5 {mates} Rg2+ 58. Kxf5 Rh2 59. Kg6 Rh1 60. Rh5 Rb1 61. Rh3+ Ke2 62. h8=Q Rb6+ 63. Kf5) 57... Rxh7+ $1 $14 58. Kxh7 Kxf2 59. Kg6 Kxe3 60. Kxf5 {[#] White wants to mate with Rc4. KR-KP} Kf3 61. Ke5 {Threatening mate with Kd4.} (61. Rh6 $5 {[%cal Rh6h3]} e3 62. Rh3+ Kf2 63. Kf4 $14) 61... e3 {The position is equal.} 62. Rf6+ Kg2 63. Kd4 e2 64. Re6 Kf2 65. Rf6+ Kg2 66. Re6 Kf2 67. Rxe2+ {Accuracy: White = 84%, Black = 66%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.5"]
[White "Vazquez, Guillermo"]
[Black "Lopez Azambuja, Nicolas"]
[Result "1-0"]
[ECO "C65"]
[WhiteElo "2524"]
[BlackElo "2310"]
[Annotator "RC"]
[PlyCount "93"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:02:38]} e5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:10]} Nc6 {[%emt 0:00:00]} 3. Bb5 {[%emt 0:01:01]} Nf6 {[%emt 0:00:09]} 4. d3 {[%emt 0:00:52]} Bc5 {[%emt 0:00:27]} 5. Bxc6 {[%emt 0:02:11]} dxc6 {[%emt 0:00:18]} 6. Nbd2 {[%emt 0:00:53]} Be6 {[%emt 0:05:15]} 7. O-O {[%emt 0:01:19]} Nd7 {[%emt 0:00:42]} 8. Nb3 {[%emt 0:01:22]} Bb6 {[%emt 0:01:04]} 9. Ng5 {[%emt 0:00:41]} Bxb3 {[%emt 0:01:56]} 10. axb3 {[%emt 0:00:06]} f6 {[%emt 0:01:13]} 11. Nf3 {[%emt 0:03:06]} O-O {[%emt 0:01:25]} 12. Nd2 {[%emt 0:03:41]} Nc5 {[%emt 0:05:02]} 13. Nc4 {[%emt 0:00:37]} Ne6 {[%emt 0:02:18]} 14. Be3 {[%emt 0:02:40]} Qd7 {[%emt 0:05:18]} 15. Qg4 {[%emt 0:03:46]} Rad8 {[%emt 0:05:25]} 16. Nxb6 {[%emt 0:04:43]} axb6 {[%emt 0:00:12]} 17. Ra7 {[%emt 0:00:12]} Ra8 {[%emt 0:07:25]} 18. Rfa1 {[%emt 0:03:11]} Rab8 {[%emt 0:00:34]} 19. h3 {[%emt 0:05:51]} Rfd8 {[%emt 0:03:26]} 20. g3 {[%emt 0:02:20]} c5 {[%emt 0:18:31]} 21. f4 {[%emt 0:07:23]} Nd4 {[%emt 0:02:03]} 22. Qxd7 {[%emt 0:03:00]} Rxd7 {[%emt 0:00:05]} 23. Bxd4 {[%emt 0:00:14]} cxd4 {[%emt 0:00:44]} 24. Ra8 {[%emt 0:07:19]} Rdd8 {[%emt 0:04:41]} 25. Rxb8 {[%emt 0:01:25]} Rxb8 {[%emt 0:00:06]} 26. Kf2 {[%emt 0:02:10]} Kf7 {[%emt 0:07:33]} 27. c3 {[%emt 0:04:51]} Rd8 {[%emt 0:04:32]} 28. Ke2 {[%emt 0:01:14]} c5 {[%emt 0:04:39]} 29. Ra7 {[%emt 0:01:48]} Rd7 {[%emt 0:00:25]} 30. Ra8 {[%emt 0:00:18]} Ke7 {[%emt 0:06:09]} 31. Rb8 {[%emt 0:07:00]} Kd6 {[%emt 0:03:38]} 32. h4 {[%emt 0:00:47]} b5 {[%emt 0:02:01]} 33. h5 {[%emt 0:02:20]} h6 {[%emt 0:02:38]} 34. c4 {[%emt 0:03:04]} bxc4 {[%emt 0:03:24]} 35. bxc4 {[%emt 0:00:06]} Kc7 {[%emt 0:00:15]} 36. Re8 {[%emt 0:01:13]} Kd6 {[%emt 0:00:38]} 37. Rb8 {[%emt 0:01:49]} Kc7 {[%emt 0:00:25]} 38. Rg8 {[%emt 0:00:04]} Kd6 {[%emt 0:01:25]} 39. Kd2 {[%emt 0:01:51]} Ke6 {[%emt 0:00:37]} 40. Kc2 {[%emt 0:02:23]} b5 {[%emt 0:00:42]} 41. cxb5 {[%emt 0:02:22]} Rb7 {[%emt 0:00:14]} 42. b6 {[%emt 0:00:30]} Kd6 {[%emt 0:00:40]} 43. Ra8 {[%emt 0:03:48]} exf4 {[%emt 0:00:41]} 44. gxf4 {[%emt 0:00:03]} Rxb6 {[%emt 0:01:30]} 45. Ra7 {[%emt 0:00:16]} Rc6 {[%emt 0:00:58]} 46. Rxg7 {[%emt 0:00:42]} c4 {[%emt 0:00:09]} 47. Rg6 {[%emt 0:00:59] Kd5} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.6"]
[White "Rodriguez Vila, Andres"]
[Black "Contin, Daniel"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "2492"]
[BlackElo "2267"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,82,-29,-22,-35,43,-27,20,-10,8,5,13,-52,-73,-75,-48,-61,0,0,0,14,86,-60,0,-8,0,0,41,36,47,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-2,8,15,23,15,22,20,14,12,50,46,41,31,97,110,98,83,70,81,100,85,159,169,171,90,408,384,460,0,393,387,341]} 1. d4 e6 2. Nc3 d5 3. Bf4 Bd6 4. Qd2 Nf6 5. f3 {[#]} Bxf4 $146 ({Predecessor:} 5... c5 6. dxc5 Bxc5 7. O-O-O Nc6 8. e4 d4 9. Bb5 Qa5 10. Bxc6+ bxc6 11. Nb1 Qxa2 {½-½ (55) Schlenker,J (2153)-Sawlin,L (2402) Karlsruhe 2019}) 6. Qxf4 {[#] D00: 1 d4 d5: Unusual lines.} Qd6 ({Better is} 6... c5 $1 $15 {[%mdl 512]}) 7. Qh4 (7. Qxd6 $14 cxd6 8. e3) 7... b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 8. e4 {The position is equal.} dxe4 9. O-O-O b4 10. Nb5 (10. Nxe4 $11 Nxe4 11. fxe4 (11. Qxe4 c6 $14)) 10... Qe7 {And now ...a6 would win.} 11. Qg3 Kd8 12. Nh3 {Hoping for Nxc7!} Rg8 (12... Re8 $15 13. Bc4 Bb7) 13. d5 $36 {[%mdl 2048] White fights for an advantage.} exd5 14. fxe4 c6 (14... a6 $11 {remains equal.} 15. e5 axb5 16. exf6 Qxf6) 15. e5 (15. Nd6 $16 {Black must now prevent Ng5.} Nxe4 16. Nxe4 {[%mdl 64] Pin} Bxh3 17. gxh3 Qxe4 18. Bd3) 15... Nh5 (15... Ne4 $15 16. Qf4 f5 17. exf6 gxf6) 16. Qb3 Qxe5 17. Bc4 {Rhe1 is the strong threat.} Bxh3 18. Bxd5 $1 Bd7 ({Not} 18... cxb5 $2 19. gxh3 Nf6 20. Bxa8+ Nbd7 21. Rhe1 $18) 19. Bxf7 (19. Rhe1 $5 {[%cal Re1e5]} Qg5+ {[%mdl 64] Pin} 20. Kb1 cxd5 21. Rxd5 $11) 19... Rf8 ({Of course not} 19... cxb5 $6 20. Bxh5 Qxh5 21. Qxg8+ Kc7 22. Qxg7 $16) 20. Nd6 $1 {aiming for Rhe1.} a5 21. Rhe1 Qf4+ 22. Kb1 a4 23. Qd3 $1 Rxf7 24. Rf1 {[#]} Qxf1 $1 25. Rxf1 Rxf1+ 26. Qxf1 Kc7 27. Nc4 Be6 {[#]} 28. g4 $1 {[%mdl 512]} Bxc4 $1 (28... Bxg4 29. Qf8) 29. Qxc4 Nf6 {Threatens to win with ...Nd5.} 30. Qf4+ Kc8 31. g5 Nd5 32. Qf7 a3 ({Black should play} 32... Ra5 $14) 33. Qxg7 $16 Nd7 34. Qg8+ Kb7 35. Qxh7 Kc7 36. g6 Re8 ({Black should try} 36... Kd6) 37. Qh4 axb2 38. Kxb2 (38. Qg3+ $18 Kd8 39. h4 (39. Kxb2 N5f6 $16)) 38... Ne5 $2 {[%mdl 8192] [#]} (38... Kd6 $16 {is tougher.}) 39. g7 $1 $18 Rg8 40. Qg5 $2 ({White has to play} 40. Qf2 $18) 40... Kd6 $2 {[%mdl 8192]} (40... Nc4+ $11 {and Black is okay.} 41. Kc1 Nd6) 41. h4 Ke6 {Accuracy: White = 75%, Black = 49%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.7"]
[White "Shtemler, Lavi"]
[Black "Hoffman, Alejandro"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "2199"]
[BlackElo "2472"]
[Annotator "TA"]
[PlyCount "114"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,114,27,30,30,31,45,18,22,0,0,-14,-11,0,-12,-59,-59,-53,-66,-50,-32,-45,-43,-57,-37,-82,-103,-130,-70,-61,-78,-133,-106,-254,-241,-295,-274,-278,-271,-270,-225,-218,-225,-221,-229,-247,-246,-220,-211,-192,-177,-185,-189,-172,-177,-186,-163,-264,-273,-267,-275,-270,-272,-267,-157,-151,-154,-154,-156,-134,-144,-143,-143,-142,-143,-138,-130,-125,-136,-108,-79,-83,-51,-50,-37,-122,-161,-285,-242,-285,-282,-250,-271,-244,-149,-147,-137,-212,-193,-322,-319,-29978,-29978]} 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Be7 6. Be2 O-O 7. O-O Re8 8. Re1 c6 {C41: Philidor Defence.} 9. a4 a5 10. Bf3 Na6 {[#] The position is equal.} 11. Nce2 $146 ({Predecessor:} 11. Bf4 Nb4 12. h3 Qb6 13. Qd2 Bf8 14. Rad1 Nd7 15. Be3 Qc7 16. Bf4 Qb6 17. Be3 {½-½ (25) Malbran,G (2306)-Perelman,H (2185) Buenos Aires 2006}) 11... Bf8 12. Ng3 Nc5 13. b3 g6 14. c4 Bg7 15. Rb1 h5 16. Bg5 Qb6 17. Nc2 Nh7 18. Be3 Qc7 19. Bf4 Be5 20. Ne2 Bxf4 (20... Nf6 $17 21. Bxe5 dxe5) 21. Nxf4 $15 d5 $36 {[%mdl 2048] Black is really pushing.} 22. e5 (22. Nd3 $142 Nxe4 23. cxd5 cxd5 24. Rc1) 22... dxc4 (22... Rxe5 $6 23. Qd4 $15) 23. bxc4 (23. Qe2 $17) 23... Bf5 $19 (23... Rxe5 24. Qd4 $17) (23... Nxa4 24. Qd6 $17) 24. Ra1 Rxe5 25. Rxe5 Qxe5 26. Qd4 Re8 27. Qxe5 Rxe5 28. Ne3 Nf6 29. h3 Kf8 30. Ra3 h4 31. Nxf5 Rxf5 32. Nd3 {With the idea Bg4.} Nfd7 33. Bg4 {[#]} Rf6 $1 34. Bxd7 Nxd7 {[%mdl 4096] Endgame KRN-KRN} 35. c5 (35. Kf1 $142) 35... Rf5 36. Rb3 Rd5 (36... Nxc5 37. Nxc5 Rxc5 38. Rxb7 $19) 37. Kf1 Ke8 (37... Nxc5 38. Nxc5 Rxc5 39. Rxb7 $17) 38. Ke2 Kd8 (38... Nxc5 39. Nxc5 Rxc5 40. Rxb7 $17) (38... Rd4 $19 39. Ra3 Kd8) 39. Ke3 $17 Kc7 ({But not} 39... Nxc5 40. Nxc5 Rxc5 41. Rxb7 $15) 40. Rc3 b5 41. cxb6+ Nxb6 42. Nc5 Rg5 {aiming for ...Nd5+.} 43. Kf3 Rf5+ 44. Ke2 Rf4 45. g3 Rd4 ({Don't play} 45... Nxa4 46. Na6+ Kb7 47. Rb3+ Kxa6 48. gxf4 $11) 46. Rf3 hxg3 47. fxg3 Kd6 48. Nb7+ Kd5 49. Rxf7 (49. Nxa5 $15 f5 50. h4) 49... Rxa4 50. Rf6 (50. Rg7 {was necessary.}) 50... Ra2+ $19 51. Kd3 Nc4 52. Rf8 {Threatens to win with Rd8+.} Ra3+ 53. Kc2 Rxg3 {And now ...c5 would win.} 54. Rd8+ Ke5 55. Rc8 (55. Re8+ $17 Kd5 56. Rd8+ Ke6 57. Rd4 Ne3+ 58. Kd2) 55... a4 56. Rxc6 (56. Re8+ {was worth a try.} Kf6 57. Nc5) 56... Kd4 ({And not} 56... Rxh3 57. Rxc4 a3 58. Ra4 $11) 57. Nd6 $2 {[#]} (57. Nd8 $19 Rg2+ 58. Kb1) 57... Rc3+ {Accuracy: White = 54%, Black = 80%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.8"]
[White "Diaz Hollemaert, Nahuel"]
[Black "Muniz, Rafael"]
[Result "1-0"]
[ECO "A25"]
[WhiteElo "2450"]
[BlackElo "2232"]
[Annotator "TA"]
[PlyCount "117"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,117,14,20,14,33,22,26,-14,-15,-8,-6,-4,-14,-16,0,-46,-33,-37,-25,-69,-67,-74,-65,-91,-107,-103,-95,-135,-111,-130,-132,-176,-104,-102,0,-166,-177,-192,-179,-359,-200,-200,-198,-196,-189,-200,-204,-184,-106,-109,-43,-39,-48,-44,-39,-46,-40,-35,-35,-112,-91,-97,-90,-94,4,4,32,16,16,16,16,16,25,25,25,27,15,20,25,8,68,11,10,9,254,87,273,8,8,8,5490,5490,5490,4775,29977,29978,29978,29979,29979,29980,29979,29981,29981,29982,29982,29983,29983,29984,29984,0]} 1. c4 e5 2. Nc3 Nc6 3. g3 Bc5 4. Bg2 a6 5. a3 Ba7 6. e3 {A25: English Opening vs King's Indian with ...Nc6 but without early d3.} d6 7. Nge2 h5 8. h3 {White has an edge.} h4 9. g4 f5 10. gxf5 Bxf5 11. d3 {[#]} Nge7 $146 ({Predecessor:} 11... Qd7 12. b4 Nf6 13. Bb2 Rb8 14. Rc1 O-O 15. Nd5 Nd8 16. Nec3 Nh7 17. Ne4 Qf7 {0-1 (60) Suba,M (2322)-Galvan,J (2216) Sueca 2015}) 12. Nd5 Nxd5 (12... Qd7 {keeps more tension.} 13. Qb3 O-O-O 14. Bd2 Rdf8 15. O-O-O g5) 13. cxd5 Ne7 14. Qb3 O-O $36 {[%mdl 2048] Black has some pressure.} 15. Bd2 Qe8 16. Rc1 Bb6 $1 17. Rg1 Qg6 18. Rc4 Bd7 ({Don't take} 18... Bxd3 19. Rg4 $15) 19. a4 {next a5 is good for White.} a5 20. Qc2 Qf7 (20... Qf6 $19 21. Rf1 Qg6) 21. Rf1 $17 Qg6 (21... Qf6 $17 22. Qb3 Rae8) 22. Be4 $2 (22. Rg1 $1 $11) 22... Qf6 $1 $19 23. Bg2 {[#]} Rf7 $1 24. Nc3 $2 (24. Rxc7 Bxc7 25. Qxc7 Bxa4 26. Qxb7) 24... Raf8 (24... Qg5 $142 25. Rg1 {[#]} Bxh3 $1 {[%mdl 576] Pin}) 25. Qd1 {intending Qh5.} Qg5 26. Rg4 Bxg4 27. Qxg4 Qxg4 28. hxg4 c6 (28... g5 $19 29. Ne4 Rg7) 29. Ne4 $17 cxd5 (29... Nxd5 $17 {White must now prevent ...Bc5.} 30. Nxd6 Rd7) 30. Nxd6 $15 Rf6 {[#]} 31. Nf5 $1 {[%cal Rf5e7][%mdl 512]} Nxf5 32. Bxd5+ Kh8 33. gxf5 Rxf5 34. Rh1 (34. Bxb7 $15 R5f6 35. Ke2) 34... g5 35. Rh2 Kg7 36. Bxb7 g4 (36... Rb8 $17 37. Be4 Rf7) 37. Rxh4 $11 Rg5 (37... Rxf2 {with more complications.} 38. Rxg4+ Kh6 39. Rh4+ Kg7 40. Rh1 Bc5) 38. Be4 {Black should prevent Ke2.} (38. Kf1 {is more complex.} g3 39. f4 Bd8 40. Bc3 g2+ 41. Kg1) 38... Rh8 39. Rxh8 Kxh8 {[%mdl 4096] Endgame KRB-KB} 40. Kf1 Kg7 41. Kg2 Kf6 42. b4 axb4 43. Bxb4 g3 44. a5 Ba7 (44... gxf2+ $11 45. Kxf2 Ba7) 45. f4 ({White should play} 45. fxg3 $14 Bxe3 46. Kf3) 45... exf4 46. exf4 {Hoping for Bc3+.} Rg4 $2 (46... Rb5 $1 $11 {and Black is okay.} 47. Bc3+ Ke7) 47. Bd6 $2 (47. Bc3+ $18 {and the rest is easy.} Ke6 48. Be5) 47... Bf2 $2 (47... Bd4 $16) 48. f5 $2 (48. a6 $18 {aiming for Be5+.} Ba7 49. Be5+ Ke6 50. d4) 48... Rg7 49. a6 Ra7 $2 {[%mdl 8192]} (49... Bd4 $11) 50. Bb7 $18 Kxf5 51. Bxg3 Bxg3 52. Kxg3 {KR-KB. White mates.} Ke5 53. Kf3 Kd4 54. Ke2 Kc5 55. Ke3 Kb6 56. Kd4 Rxb7 57. axb7 Kxb7 58. Kd5 Kc7 59. Ke4 $2 {[%mdl 32768] Accuracy: White = 62%, Black = 60%. . Sensor Board Error (Ke4/e5)?} (59. Ke6 {mates} Kd8 60. d4 Kc7 61. d5 Kd8 62. Kd6 Ke8 63. Kc7 Kf7 64. d6) 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.9"]
[White "Meza, Anahi"]
[Black "Liascovich, Lucas"]
[Result "0-1"]
[ECO "D25"]
[WhiteElo "2046"]
[BlackElo "2425"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,57,12,0,-3,-112,-112,-108,-116,-109,-106,-98,-99,-105,-107,-87,-90,-93,-79,-99,-52,-75,-62,-66,-52,-72,-53,-52,-59,-66,-62,-150,-152,-141,-140,-135,-143,-295,-283,-283,-281,-352,-353,-384]} 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 Bg4 5. Bxc4 e6 6. O-O a6 7. a4 Nc6 8. Nc3 Bd6 9. Be2 O-O {D24: Queen's Gambit Accepted: 3 Nf3 Nf6 4 Nc3.} 10. e4 (10. h3 $11 Bh5 11. b3) 10... Bxf3 $1 $17 11. Bxf3 {[#] Hoping for e5.} Nxd4 $1 {[%mdl 512] Black is better.} 12. Be3 {[#]} (12. Qxd4 Bxh2+) 12... e5 $146 ({Predecessor:} 12... Be5 13. Bxd4 Qxd4 14. Qb3 Qa7 15. Rfd1 Rad8 16. g3 h6 17. Qc4 c6 18. a5 Rd4 19. Rxd4 Bxd4 {0-1 (54) Kozenkov,V (2091)-Shushpanov,V (2375) St Petersburg 2010}) 13. Bxd4 exd4 14. Nd5 c6 15. Nxf6+ Qxf6 16. g3 Rad8 {White must now prevent ...d3!} 17. Qd3 g5 18. Bg2 Kh8 19. Rad1 Be5 20. Qb3 b5 21. axb5 axb5 22. Rd3 Qd6 23. Bh3 (23. Rd2 $15) 23... c5 $1 {[%cal Rc5c4] aiming for ...c4.} 24. Qxb5 Rb8 25. Qc4 {[#]} Rb4 $1 {[%cal Rb4c4]} 26. Qd5 $2 {[#]} (26. Qc1 $17) 26... Qxd5 $1 $19 ({Resist} 26... Rxb2 27. Rc1 $17) 27. exd5 c4 ({Don't play} 27... Rxb2 28. Rc1 $17) 28. Rd2 d3 29. Bg4 {Accuracy: White = 56%, Black = 94%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.10"]
[White "Dotta, Gian Franco"]
[Black "Hungaski, Robert"]
[Result "0-1"]
[ECO "C15"]
[WhiteElo "2000"]
[BlackElo "2504"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,76,4,-1,10,8,8,-10,0,0,0,0,0,-9,8,-6,6,0,7,0,8,0,232,237,229,230,264,260,253,261,238,225,215,147,166,76,183,163,138,99,101,-70,-70,-90,-81,-127,-125,-140,-133,-145,-131,-128,-110,-119,0,-35,-39,-896,-894,-895,-897,-850,-837,-764,-672,-12829,-12829,-743,-655]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. exd5 exd5 5. a3 Bxc3+ 6. bxc3 Ne7 {C01: French: Exchange Variation.} 7. Bd3 Bf5 8. Bf4 O-O {The position is equal.} 9. Nf3 Nbc6 10. O-O Qd7 11. Re1 {[#]} f6 $146 ({Predecessor:} 11... Rae8 12. Rb1 Na5 13. Ne5 Qc8 14. h3 b6 15. Bh2 f6 16. Ng4 Bxd3 17. cxd3 Nf5 18. Qf3 c6 {½-½ (35) Palladino,M (2184)-Jahn,P (2124) ICCF email 2015}) 12. c4 Bxd3 13. Qxd3 dxc4 14. Qxc4+ Nd5 15. Bd2 Nd8 $2 (15... Qf7 $11) 16. Bb4 $1 $18 b5 17. Qb3 Nc6 {[%cal Bd8c6,Bc6a5,Ba5c4][%mdl 32]} 18. Bxf8 Na5 19. Qd3 Rxf8 20. Re4 Nc4 21. Rae1 a5 22. a4 (22. g3 $18 {is more deadly.}) 22... c6 (22... Nd6 $16 {is a better defense.}) 23. Nd2 Nd6 24. Rh4 g5 25. Rh6 $2 ({White must play} 25. Rh3 $1 $16) 25... Nf4 $15 26. Qb3+ Kg7 {And now ...bxa4 would win.} 27. g3 bxa4 $1 28. Qf3 Kxh6 $40 {[%mdl 128] Black is out for blood.} 29. gxf4 g4 30. Qa3 Rd8 31. Qxa4 {[#]} Qf5 (31... Nf5 $1 $17 {Hoping for ...Nh4.} 32. c3 Nh4) 32. Qxc6 Qxf4 {[%mdl 64] Double Attack} 33. Ne4 $2 {[%mdl 8192] [#]} (33. Qb6 $15 Qxd2 {[%mdl 64] Double Attack} 34. Rf1) 33... Re8 $1 $19 {[%cal Rd6e4] Black is clearly winning.} 34. Qc7 Rxe4 {[%mdl 64] Overworked Piece} 35. Rxe4 Qc1+ ({Not} 35... Qxe4 36. Qxd6 Kg6 37. Qc5 $15) 36. Kg2 Nxe4 37. Qxa5 Qxc2 38. Qf5 Qxf2+ {Played: Qc2-e2} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.11"]
[White "Roselli Mailhe, Bernardo"]
[Black "El Ters, Antouan"]
[Result "1-0"]
[ECO "E12"]
[WhiteElo "2433"]
[BlackElo "2189"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,82,27,35,23,30,16,16,8,18,15,16,14,7,10,14,0,0,0,22,21,23,0,26,0,0,0,21,18,50,52,60,49,74,58,97,87,96,95,133,151,137,59,62,62,59,58,61,33,47,33,33,-15,60,53,137,121,512,505,606]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 Be7 6. Qc2 d5 7. cxd5 Nxd5 8. e4 Nxc3 9. bxc3 Nd7 10. Bd3 c5 11. O-O cxd4 12. cxd4 Rc8 13. Qe2 O-O 14. Bb2 {E12: Queen's Indian: Unusual White 4th moves, 4 a3, 4 Nc3 Bb7 5 a3 and 4 Nc3 Bb7 .} Qc7 15. Qe3 Rfd8 {[#]} 16. h3 $146 {The position is equal.} ({Predecessor:} 16. Rad1 Qd6 17. Rfe1 a6 18. d5 exd5 19. e5 Qh6 20. Qxh6 gxh6 21. Bf5 Rc7 {1-0 (52) Pappier,C (2409)-De Souza,O (2376) ICCF email 2007}) 16... Nf8 17. Rfc1 Qd7 18. a4 Rxc1+ 19. Qxc1 Rc8 20. Qd2 Ng6 21. a5 Qc7 22. axb6 axb6 23. Re1 Qf4 24. Qe3 Qxe3 25. fxe3 Bb4 26. Rb1 Ba5 27. Kf2 f6 28. Ke2 Kf7 29. Nd2 Ra8 30. Rc1 {[#] And now Rc7+ would win.} Rc8 31. Nc4 {Threatens to win with Nd6+.} Ke7 32. Ba3+ Kd7 33. Rb1 (33. g3 $16) 33... Bxe4 $1 $14 34. Nxb6+ Bxb6 35. Bxe4 Rb8 36. Rc1 f5 37. Bc6+ Kd8 $1 38. d5 exd5 (38... Bxe3 $1 $11 39. Kxe3 Rb3+ {[%mdl 64] Double Attack} 40. Kd4 Rxa3) 39. Bxd5 Bc7 {[#]} (39... f4 $14) 40. Rd1 $1 $16 {Strongly threatening Bb7+.} f4 $2 {[%mdl 8192]} (40... Be5 $16 {is a better chance.} 41. Be6+ Ke8 42. Bxf5 Ra8) 41. Bb7+ $18 Bd6 {Accuracy: White = 81%, Black = 66%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.12"]
[White "Munoz Perez, Rolando"]
[Black "Coppola, Claudio"]
[Result "1-0"]
[ECO "A43"]
[WhiteElo "2130"]
[BlackElo "2314"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,96,56,45,93,43,56,63,55,22,175,62,63,52,66,55,64,57,58,53,77,53,54,37,37,39,53,51,32,43,50,47,40,15,40,28,25,0,0,-1,9,-17,10,14,29,89,61,20,19,0,18,19,59,-38,-22,-52,-35,-182,-49,-46,-45,-148,-162,-169,-68,-93,-57,-317,139,142,261,139,542,547,560,560,539,520,440,440,29997,29998,29998]} 1. d4 Nf6 2. Nf3 c5 3. d5 g6 4. c4 Bg7 5. Nc3 O-O 6. e4 d6 7. Bd3 e6 8. O-O exd5 9. exd5 Re8 {E90: King's Indian: Classical: Early deviations and 6 h3.} 10. Bf4 Nh5 11. Bg5 f6 {White is slightly better.} 12. Be3 {[#]} Na6 $146 (12... Bg4 $11) ({Predecessor:} 12... Bg4 13. h3 Bxf3 14. Qxf3 Bf8 15. g4 Ng7 16. Qg3 Qd7 17. h4 f5 18. h5 fxg4 19. hxg6 {1-0 (30) Dubiel,L (1918)-Kaniak,J (1942) Rewal 2007}) 13. h3 (13. Nh4 $1 $18 {[%cal Rh4g6] And now Nxg6! would win.} f5 14. Nxf5 $1 {[%mdl 512]}) 13... f5 $14 14. Re1 Nc7 15. Qb3 Rb8 16. Bg5 Rxe1+ 17. Rxe1 Nf6 18. Qc2 Bd7 19. Qe2 Qf8 20. Qe7 Re8 21. Bxf6 Rxe7 22. Bxe7 Qc8 23. Bxd6 Ne8 {[%cal Bc7e8,Be8d6,Bd6f7,Bf7e5][%mdl 32]} 24. Be5 Bf8 25. b3 Qd8 26. Re2 Nd6 27. Bf4 Nf7 28. Ne5 Bg7 29. Nxd7 Qxd7 30. Nb5 g5 31. Bd2 Ne5 32. Bc2 a6 {[%cal Ba7a6,Ba6b5,Bb5b4][%mdl 32]} 33. Nc3 b5 34. cxb5 (34. Bxg5 $14 bxc4 35. bxc4) 34... axb5 $15 35. a4 b4 $36 {[%mdl 3072] Black has compensation. Black fights for an advantage.} 36. Nd1 (36. Nb5 $15) 36... h6 (36... Qxd5 37. Ne3 $14) ({Better is} 36... f4 $19 37. Be4 f3 $1 {[%mdl 512]}) 37. Ne3 $1 {[%cal Re3f5]} f4 38. Bf5 (38. Nf5 $15) 38... Qb7 $17 39. Be6+ Kf8 (39... Kh8 $1 $19 {aiming for ...Qa6.} 40. Ng4 Nxg4 41. Bxg4 (41. hxg4 Qa6 $17) 41... Qxd5) 40. Nf5 $15 Qa6 41. Re4 $2 {[%mdl 8192] [#]} (41. Bxb4 $1 $15 Qxe2 42. Bxc5+ Ke8 43. Nxg7+ Kd8 44. Bb6+ Ke7 45. Nf5+ Ke8 46. a5 (46. Nxh6 $2 Nd3 $17)) 41... Qd3 $2 {[#]} ({Black should try} 41... Bf6 $1 $19 {...h5 is the strong threat.} 42. Be1 Qd3 {[%mdl 64] Double Attack} 43. Bxb4 cxb4 44. Rxb4 Nf7) 42. Bxb4 $1 $16 {[%mdl 512]} cxb4 (42... Qb1+ $16 43. Re1 Qc2) 43. Rxb4 $18 {[%cal Rb4b8]} Nd7 $2 {[%mdl 8192]} (43... Nc6 $16 44. dxc6 Be5) 44. Rb7 ({Not} 44. Bxd7 Be5 $14) 44... Be5 {( -> ...Qd1+)} 45. Rxd7 {[%cal Rd7d8]} Qd1+ 46. Kh2 {[%cal Rd7d8]} f3+ 47. g3 {[%cal Rd7d8]} Bf6 (47... Ke8 $18 48. Ra7 Qxb3) 48. Rf7+ {[%mdl 64] Double Attack} Ke8 {Accuracy: White = 53%, Black = 56%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.13"]
[White "Siddeley, Hugh"]
[Black "Michailov, Matias"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "1974"]
[BlackElo "2262"]
[Annotator "ChessBase"]
[PlyCount "49"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:01:50]} 2. Bf4 {[%emt 0:00:00]} g6 {[%emt 0:01:46]} 3. e3 {[%emt 0:00:08]} Bg7 {[%emt 0:00:14]} 4. h3 {[%emt 0:01:54]} O-O {[%emt 0:00:43]} 5. Nf3 {[%emt 0:00:11]} d6 {[%emt 0:01:59]} 6. Be2 {[%emt 0:00:10]} Nbd7 {[%emt 0:03:41]} 7. O-O {[%emt 0:00:14]} Qe8 {[%emt 0:05:42]} 8. c3 {[%emt 0:05:31]} e5 {[%emt 0:01:12]} 9. Bh2 {[%emt 0:00:06]} Qe7 {[%emt 0:02:17]} 10. a4 {[%emt 0:00:44]} Ne4 {[%emt 0:06:40]} 11. Nbd2 {[%emt 0:04:40]} Nxd2 {[%emt 0:01:22]} 12. Nxd2 {[%emt 0:00:54]} f5 {[%emt 0:00:37]} 13. a5 {[%emt 0:05:10]} a6 {[%emt 0:05:07]} 14. b4 {[%emt 0:02:13]} Nf6 {[%emt 0:02:43]} 15. b5 {[%emt 0:09:00]} axb5 {[%emt 0:09:30]} 16. Qb3+ {[%emt 0:03:45]} Kh8 {[%emt 0:05:38]} 17. Qxb5 {[%emt 0:00:19]} Nd7 {[%emt 0:13:40]} 18. Bf3 {[%emt 0:13:37]} e4 {[%emt 0:03:57]} 19. Bd1 {[%emt 0:00:55]} g5 {[%emt 0:01:15]} 20. Bc2 {[%emt 0:00:59]} Nf6 {[%emt 0:04:30]} 21. Rfe1 {[%emt 0:09:36]} Qf7 {[%emt 0:03:08]} 22. f3 {[%emt 0:03:50]} exf3 {[%emt 0:03:43]} 23. Nxf3 {[%emt 0:03:38]} Bh6 {[%emt 0:00:31]} 24. Qe2 {[%emt 0:00:30]} g4 {[%emt 0:00:30]} 25. Nd2 {[%emt 0:10:20]} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.14"]
[White "Amura, Claudia"]
[Black "Pinero, Ismael"]
[Result "1-0"]
[ECO "E73"]
[WhiteElo "2245"]
[BlackElo "1914"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,79,42,54,59,108,108,108,102,106,102,102,95,102,104,107,92,113,120,122,103,113,113,139,106,153,118,131,127,204,203,341,175,251,240,261,202,354,308,316,319,380,331,443,448,452,445,416,368,447,163,186,170,639,643,603,612,1448,1392,2790,2511,29988,29989,29990,29991,29991,29991]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c6 7. Nf3 Nbd7 8. O-O e5 9. d5 {E94: King's Indian: Classical: 6 Be2 e5 7 0-0: Various Black 7th moves.} c5 10. Qd2 a6 11. a3 {[#] White is better.} b6 $146 ({Predecessor:} 11... Rb8 12. h3 Qe8 13. Rfe1 b6 14. a4 a5 15. Nh2 Kh8 16. Bg4 Ba6 17. b3 Nxg4 18. Nxg4 f5 19. exf5 gxf5 20. Nh2 Qg6 21. f3 h6 {½-½ (21) Neumann,H (1809)-Fleischer,M (1926) Buesum 2017}) 12. b4 Qc7 13. Ne1 Re8 14. Rb1 Rb8 15. Rb3 Nf8 16. Nc2 N6d7 17. Ne3 f6 18. Bh4 Bh6 19. Rfb1 Kf7 20. Na4 {[%cal Bc3a4,Ba4b2,Bb2c4][%mdl 32]} b5 21. Nb2 cxb4 (21... Kg8 $16 22. Qc2 Bxe3) 22. axb4 $18 f5 (22... Qb6 $142 23. Qd3 Bb7) 23. f3 (23. exf5 $142 {Strongly threatening Rc3.} Kg7 24. Rc3) 23... bxc4 (23... Kg8 {was worth a try.} 24. Qc3 (24. exf5 gxf5 25. Rc3 bxc4 $14) 24... a5) 24. Nbxc4 Nb6 {aiming for ...Nxc4.} 25. Na5 Na4 $2 (25... Kg8 26. Qd3 Bf4) 26. Bf2 fxe4 27. fxe4 Nd7 28. Rc1 Qxa5 29. bxa5 Rxb3 30. Bd1 Rb2 31. Rc2 Rb1 32. Qe2 $2 (32. Rc7) 32... Ndc5 {[#] ...Kg8 would now be nice for Black.} 33. Nc4 $1 {[%cal Rc4d6]} Nxe4 $2 (33... Bf8) 34. Qxe4 Rxd1+ 35. Be1 Ke7 36. Qh4+ {[%mdl 64] Double Attack} g5 37. Qxh6 {[%mdl 64] White threatens Qg7+ and mate. Double Attack} Rxe1+ {[#]} 38. Kf2 $1 {[%mdl 512] White mates.} Ra1 39. Qg7+ Kd8 40. Nxd6 {[%mdl 64] Double Attack. Accuracy: White = 65%, Black = 42%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.15"]
[White "Aguilar Samper, Valentin"]
[Black "Larrea, Manuel"]
[Result "0-1"]
[ECO "E63"]
[WhiteElo "1946"]
[BlackElo "2243"]
[Annotator "ChessBase"]
[PlyCount "120"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:08]} Nf6 2. g3 g6 {[%emt 0:07:12]} 3. Bg2 {[%emt 0:00:16]} Bg7 {[%emt 0:00:06]} 4. Nf3 {[%emt 0:00:06]} O-O {[%emt 0:00:09]} 5. O-O d6 {[%emt 0:00:06]} 6. c4 {[%emt 0:00:21]} Nc6 {[%emt 0:00:27]} 7. Nc3 {[%emt 0:00:19]} a6 {[%emt 0:00:06]} 8. Re1 {[%emt 0:00:08]} Rb8 {[%emt 0:01:39]} 9. Rb1 {[%emt 0:00:09]} b5 {[%emt 0:07:55]} 10. cxb5 {[%emt 0:00:18]} axb5 {[%emt 0:00:05]} 11. b4 {[%emt 0:00:14]} e6 {[%emt 0:04:37]} 12. e4 {[%emt 0:06:24]} Ne7 {[%emt 0:05:12]} 13. Nd2 {[%emt 0:17:23]} Nd7 {[%emt 0:03:10]} 14. Nb3 {[%emt 0:04:39]} Ba6 {[%emt 0:12:59]} 15. Qc2 {[%emt 0:08:41]} Nc6 {[%emt 0:11:26]} 16. Nd5 {[%emt 0:13:36]} Bb7 {[%emt 0:10:49]} 17. Nxc7 {[%emt 0:05:35]} Qxc7 {[%emt 0:11:52]} 18. d5 {[%emt 0:01:11]} Nde5 {[%emt 0:01:44]} 19. dxc6 {[%emt 0:08:11]} Qxc6 {[%emt 0:00:23]} 20. Qe2 {[%emt 0:11:37]} Qc4 {[%emt 0:02:16]} 21. Na5 {[%emt 0:01:13]} Qxe2 {[%emt 0:00:45]} 22. Rxe2 {[%emt 0:00:06]} Ba8 {[%emt 0:00:14]} 23. Bb2 {[%emt 0:03:26]} Rfc8 {[%emt 0:04:41]} 24. Rd1 {[%emt 0:03:20]} Bf8 {[%emt 0:02:31]} 25. a3 {[%emt 0:05:38]} Nc4 {[%emt 0:01:59]} 26. Nxc4 {[%emt 0:00:15]} bxc4 {[%emt 0:01:40]} 27. Rc2 {[%emt 0:01:58]} f5 {[%emt 0:03:03]} 28. Rd4 {[%emt 0:05:19]} c3 {[%emt 0:03:43]} 29. Bxc3 {[%emt 0:02:03]} Bg7 {[%emt 0:00:29]} 30. Rxd6 {[%emt 0:00:28]} Rxc3 {[%emt 0:02:24]} 31. Rxc3 {[%emt 0:00:13]} Bxc3 {[%emt 0:00:04]} 32. exf5 {[%emt 0:01:50]} exf5 {[%emt 0:00:27]} 33. Rd3 {[%emt 0:00:33]} Bf6 {[%emt 0:01:09]} 34. Rb3 {[%emt 0:00:36]} Kf7 {[%emt 0:00:37]} 35. b5 {[%emt 0:00:38]} Ke6 {[%emt 0:00:15]} 36. a4 {[%emt 0:00:21]} Bxg2 {[%emt 0:00:47]} 37. Kxg2 {[%emt 0:00:04]} Kd5 {[%emt 0:00:08]} 38. Rd3+ {[%emt 0:00:55]} Bd4 {[%emt 0:00:18]} 39. Kf3 {[%emt 0:00:41]} Kc4 {[%emt 0:00:59]} 40. Rd2 {[%emt 0:00:15]} Ra8 {[%emt 0:00:19]} 41. g4 {[%emt 0:00:46]} fxg4+ {[%emt 0:00:20]} 42. Kxg4 {[%emt 0:00:05]} Rxa4 {[%emt 0:00:15]} 43. Kg5 {[%emt 0:00:32]} Ra3 {[%emt 0:00:31]} 44. h4 {[%emt 0:00:26]} Rf3 {[%emt 0:01:00]} 45. Rc2+ {[%emt 0:00:59]} Kxb5 {[%emt 0:00:53]} 46. Kg4 {[%emt 0:00:28]} Rf5 {[%emt 0:00:40]} 47. f3 {[%emt 0:00:30]} h5+ {[%emt 0:00:25]} 48. Kg3 {[%emt 0:00:06]} Be5+ {[%emt 0:00:10]} 49. Kg2 {[%emt 0:00:06]} Bf6 {[%emt 0:00:22]} 50. Kg3 {[%emt 0:00:14]} Rc5 {[%emt 0:00:15]} 51. Rd2 {[%emt 0:01:33]} Kc6 {[%emt 0:00:49]} 52. Ra2 {[%emt 0:00:13]} Be5+ {[%emt 0:00:37]} 53. Kh3 {[%emt 0:00:37]} Kd5 {[%emt 0:00:32]} 54. Ra6 {[%emt 0:00:41]} Bd6 {[%emt 0:00:24]} 55. Ra8 {[%emt 0:00:33]} Ke6 {[%emt 0:00:25]} 56. Re8+ {[%emt 0:00:21]} Kf6 {[%emt 0:00:35]} 57. Re3 {[%emt 0:00:35]} Rc2 {[%emt 0:00:41]} 58. f4 {[%emt 0:00:22]} Rc4 {[%emt 0:00:10]} 59. Rb3 {[%emt 0:00:40]} Bxf4 {[%emt 0:00:35]} 60. Rb6+ {[%emt 0:00:23]} Ke5 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.16"]
[White "Carbone, Diego"]
[Black "Benoit, Rodrigo"]
[Result "1-0"]
[ECO "A81"]
[WhiteElo "2239"]
[BlackElo "2170"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,79,33,27,28,44,44,36,14,15,12,18,11,15,0,7,-7,4,0,0,0,0,0,0,0,0,0,0,0,13,13,13,13,8,9,66,-37,-40,-18,0,0,0,0,0,0,0,0,0,0,14,0,67,43,131,122,115,28,26,24,56,70,210,210,210,206,200,188,953,951]} 1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. O-O O-O 6. b3 Ne4 7. Bb2 d5 8. c4 {A81: Dutch Defence: 2 g3.} Be6 9. cxd5 Bxd5 10. Nc3 {White is slightly better.} Nxc3 11. Bxc3 {[#]} e6 $146 ({Predecessor:} 11... Nc6 12. e3 Qd6 13. Qe2 h6 14. Rfd1 Kh7 15. h4 e6 16. Bf1 a5 17. Nd2 a4 {½-½ (30) Pytel,K (2295)-Haub,T (2397) Rochefort 2017}) 12. Rc1 Nd7 13. Bd2 c6 14. Bf4 h6 15. Qd2 g5 16. Bd6 Re8 17. Rfd1 a5 18. Ne5 Nf6 19. Bc5 Bxg2 20. Kxg2 Ne4 21. Qe3 Nf6 22. Kg1 Nd5 23. Qd3 Qc7 (23... Bxe5 $11 24. dxe5 Qc7) 24. e4 (24. Nc4 $1 $14) 24... fxe4 $15 25. Qxe4 {[#] Qg6 is the strong threat.} Bxe5 26. dxe5 Qh7 27. Qg4 Qf5 28. Qh5 Kg7 29. Rc4 {[%cal Bc1c4,Bc4g4,Bg4f4,Bf4f5][%mdl 32]} Rad8 30. Bd6 Qf7 31. Qe2 Ne7 (31... Qf5 $11) 32. h4 {Strongly threatening hxg5.} Nf5 ({Better is} 32... Nd5 $14) 33. Rg4 $36 {[%mdl 2048] Keeping Black busy.} Qg6 34. f4 (34. b4 $16) 34... Kh7 35. Qf3 {[%cal Rf4g5]} Rd7 36. fxg5 h5 ({Black should try} 36... Rg8 $14) 37. Rf4 $18 Red8 38. Rf1 Kg7 39. Qc3 Ra8 $2 {[#]} (39... Kh7 40. Kh2 Rc8) 40. Rxf5 {Accuracy: White = 87%, Black = 70%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.17"]
[White "Garcia Palermo, Carlos"]
[Black "Pichuaga, Juan Pablo"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "2434"]
[BlackElo "2030"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,69,36,48,45,54,45,45,46,58,53,78,66,67,72,86,79,97,64,69,45,43,40,59,58,53,32,39,44,58,67,64,52,64,72,133,92,104,108,100,102,168,163,155,137,270,283,300,280,407,415,417,411,632,622,666,665,647,648,1538,1156,1257,1207]} 1. d4 e6 2. c4 d5 3. Nf3 f5 4. e3 Nf6 5. Bd3 Be7 6. O-O {A84: Dutch Defence: 2 c4 Miscellaneous.} O-O 7. b3 c6 8. Bb2 {White is slightly better.} Bd7 9. Nc3 {[%cal Bb1c3,Bc3e2,Be2f4][%mdl 32]} Ne4 10. Ne2 {[#]} Bd6 $146 ({Predecessor:} 10... Na6 11. Ne5 Nc7 12. f3 Nf6 13. Qc1 Be8 14. Ba3 Nd7 15. f4 Bh5 16. Ng3 Bg6 {0-1 (41) Purygin,A (2301)-Muratov,S (2181) Sochi 2018}) 11. Ne5 Qh4 12. f3 Ng5 13. Nf4 (13. Bc3 {keeps more tension.} Qh6 14. Qd2 Nf7 15. f4 Nxe5 16. dxe5 Be7 17. cxd5 exd5 18. b4) 13... Nf7 14. Nxf7 (14. Qc1 {looks sharper.} Qh6 15. Rd1 g5 16. Ne2 Be8 17. Ba3) 14... Rxf7 15. Qd2 (15. c5 {feels hotter.} Bc7 16. Qe1 Qe7 17. g3 a5 18. Rc1) 15... Qh6 16. g3 Be8 17. e4 fxe4 18. fxe4 dxe4 19. Bxe4 Nd7 20. Rae1 Nf8 21. Bc1 Rd8 ({Black should try} 21... Bxf4 22. Rxf4 Rxf4 23. Qxf4 Qxf4 24. Bxf4 Rd8) 22. Qc3 g5 23. Nd3 Rxf1+ 24. Rxf1 Bg6 (24... Be7 $16) 25. Bxg6 $18 Qxg6 26. Bb2 $40 {[%mdl 128] White is out for blood.} Nd7 {[#]} (26... Qg7 $16 {keeps fighting.} 27. Qa5 b6) 27. d5 $1 {[%csl Gb2][%cal Rc3h8][%mdl 512]} e5 (27... cxd5 28. Qh8#) 28. c5 {Threatens to win with dxc6.} Bb8 (28... Bf8 {is a better defense.} 29. dxc6 (29. Nxe5 Nxe5 30. Qxe5 Bg7 $18) 29... Qxc6 30. Qc4+ Kh8) 29. d6 Re8 30. Re1 g4 (30... b6 $142 31. Nxe5 Nxe5 32. Rxe5 Rxe5 33. Qxe5 bxc5) 31. Nxe5 {White is clearly winning.} Rxe5 32. Rxe5 Nxe5 33. Qxe5 Qb1+ 34. Kf2 {[%csl Gb2][%cal Re5g7]} Qc2+ 35. Ke3 {Accuracy: White = 91%, Black = 58%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.18"]
[White "Avedisian, Alexander"]
[Black "Carvalho, Guillermo"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "1892"]
[BlackElo "2187"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,68,-52,-39,-151,1,-4,39,35,65,52,41,47,45,31,77,37,39,23,19,6,37,35,31,0,0,0,0,0,0,-118,0,-18,0,-34,19,8,22,5,0,0,0,0,83,0,0,-32,35]} 1. g3 d5 2. Nf3 Nf6 3. Bg2 e6 4. O-O Be7 5. d3 b6 6. Nbd2 Bb7 7. e4 c5 8. e5 Nfd7 9. Re1 Nc6 10. Nf1 h6 11. h4 Qc7 12. Qe2 O-O-O 13. Bf4 {C00: French: Unusual White 2nd moves} ({White should play} 13. c3 $15) 13... Nf8 $2 (13... Rdg8 $1 $17 {And now ...g5 would win.} 14. Bd2 g5 15. hxg5 hxg5) 14. c3 {[#]} Rd7 $146 ({Predecessor:} 14... Kb8 15. g4 Rc8 16. Bg3 Qd8 17. a3 Ka8 18. b4 Nd7 19. Rab1 Re8 20. Qd2 Bf8 21. b5 {½-½ (68) Domont,A (2355)-Pytel,M (2340) Switzerland 1996}) 15. a3 {White is slightly better.} Qd8 16. b4 g5 17. hxg5 $1 hxg5 18. Bd2 $1 Rg8 19. bxc5 Bxc5 20. d4 Be7 $1 21. Ne3 Na5 22. Reb1 Rc7 23. Ne1 Kb8 24. N1c2 Qc8 25. Nb4 Rh8 26. Bf3 {[#]} (26. a4 $11 {keeps the balance.}) 26... Nc4 (26... Nd7 $1 $17 27. Kg2 f6) 27. a4 Na5 28. Bg2 $1 f5 (28... Nd7 $15) 29. exf6 $1 $11 Bxf6 30. Ng4 Be7 31. Ne5 Ka8 32. Rb2 Qe8 {[#]} (32... Bd6 $11) 33. Na6 (33. c4 $1 $16 {[%cal Rc4d5]} Nxc4 34. a5 Nxa5 35. Na6 Bxa6 36. Qxa6) 33... Rc8 $1 34. Nb4 Qh5 {Accuracy: White = 69%, Black = 56%.} ({Black should try} 34... Bd6 $15) 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.19"]
[White "Vazquez, Facundo"]
[Black "Pustilnik, Iber"]
[Result "0-1"]
[ECO "E61"]
[WhiteElo "2155"]
[BlackElo "1892"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,130,19,12,43,17,22,31,33,36,30,16,56,60,128,128,118,112,137,134,141,140,133,107,176,181,191,181,191,197,189,122,151,172,123,101,100,0,0,-29971,-29973,-29969,-29970,-29970,-29970,-29970,-29969,-4132,-1312,-29977,-29978,-29978,-29979,-29979,-29980,-29980,-29981,-29980,-891,-874,-860,-839,-810,-769,-791,-743,-705,-1080,-998,-1083,-875,-2212,-2032,-1781,-1057,-1454,-1374,-1269,-6,-62,-90,-95,0,0,0,-993,-999,-29982,-29983,-29983,-29984,-29987,-29984,-29984,-29985,-29985,-29983,-29983,-29984,-29984,-29985,-29985,-29986,-29986,-29987,-29987,-29988,-29989,-29990,-29990,-29990,-29989,-29989]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 c6 5. Bg2 d5 6. cxd5 cxd5 7. Nf3 O-O 8. Ne5 Nc6 9. Nxc6 bxc6 10. O-O Bf5 11. Na4 Qc8 {D79: Fianchetto Grünfeld: Symmetrical Variation (6 0-0 c6 7 cxd5 cxd5).} 12. Bd2 Bh3 {[#]} 13. Rc1 $146 ({Predecessor:} 13. Bb4 Re8 14. Rc1 e5 15. e3 exd4 16. exd4 Bh6 17. Bd2 Bxd2 18. Qxd2 Ne4 19. Qf4 Bxg2 20. Kxg2 {½-½ (32) Kalaiyalahan,A (2233)-Serikbay,A (1978) Porto Carras 2015}) 13... Bxg2 {White is slightly better.} 14. Kxg2 Ne4 15. Be3 Qe8 16. Nc5 Rc8 (16... Nd6 $14) 17. Nxe4 $16 dxe4 18. Qc2 e5 19. dxe5 (19. Qxe4 exd4 20. Qxe8 Rfxe8 $17) 19... Qxe5 20. b3 (20. Bxa7 $6 Qxb2 21. Qc4 Ra8 $14) 20... h5 21. h4 Rfd8 (21... Qe6 $16) 22. Rfd1 $18 Bf6 23. Qc4 Qf5 24. Rxd8+ ({Don't play} 24. Bxa7 $6 Bxh4 25. Be3 (25. gxh4 Qg4+ 26. Kh2 Qxh4+ 27. Kg2 Qg4+ 28. Kh1 Qh3+ 29. Kg1 Qg4+ 30. Kh1 Qh3+ 31. Kg1 Qg4+ 32. Kh1 $11) 25... Bf6 $16) 24... Bxd8 25. Bxa7 (25. Qa6 $18) 25... Bxh4 $16 26. gxh4 {Threatens to win with Rc3.} Qg4+ 27. Kf1 {Strongly threatening Bd4.} Qxh4 {[%cal Rh4h1]} 28. Ke1 (28. e3 $16 {Black must now prevent Bd4.} Ra8 29. Bd4 Rxa2 30. Rc2 Rxc2 31. Qxc2) 28... Rd8 $40 {[%cal Rh4h1][%mdl 128] White needs to defend precisely.} 29. Bd4 $2 {[%mdl 8192] [#]} (29. e3 $11 Rd3 30. Ke2 (30. Qxc6 Qh1+ 31. Ke2 Qf3+ 32. Ke1 Qh1+ 33. Ke2 Qf3+ 34. Ke1 Qh1+ $11) 30... Qg4+ 31. Kf1) 29... e3 $1 {[%cal Rh4h1][%mdl 512]} 30. Qxc6 (30. Bxe3 Qh1#) 30... Qxf2+ 31. Kd1 Rxd4+ {[%mdl 4096] Endgame KQR-KQR} 32. Kc2 Qxe2+ 33. Kb1 Qd3+ (33... Rd1 $142 34. Qe8+ Kg7 35. Qxe3 Qxe3 36. Rxd1 h4) 34. Ka1 e2 35. Qe8+ Kg7 36. Qe5+ Kh7 37. Rc8 Qd1+ 38. Kb2 Rd8 (38... Qd2+ $142 39. Ka3 Qb4+ 40. Kb2 Rd2+ 41. Kc1 Rd1+ 42. Kb2 Qd2+ 43. Ka3 Qd6+ {[%mdl 64] Double Attack} 44. Rc5 e1=Q 45. Qxd6 Rxd6 46. Rc8 Qd2 47. Ra8 Rb6 48. Ra7 Qc1+ 49. Ka4 Qc5 50. Rxf7+ Kh6 51. Rh7+ Kxh7 52. a3 Qb5#) 39. Rxd8 $19 Qxd8 40. Qxe2 {KQ-KQ} Qd4+ 41. Kc2 h4 42. Qf3 Kg7 43. a4 Qf6 44. Qh1 g5 45. b4 g4 46. a5 Qf5+ 47. Kd2 h3 48. a6 Qf3 $2 (48... Qg5+ $19 49. Kd3 Qg6+ 50. Kc3 Qf6+ 51. Kb3 Qxa6) 49. Qa1+ ({White should play} 49. Qxf3 $11 gxf3 50. a7) 49... f6 $1 $15 50. a7 Qd5+ {Played: Qf3-a8} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.20"]
[White "Palacio, Enzo"]
[Black "Trois, Francisco R.T."]
[Result "1/2-1/2"]
[ECO "B06"]
[WhiteElo "1869"]
[BlackElo "2141"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,73,40,71,25,38,6,55,38,38,35,36,32,30,27,30,33,36,0,36,20,28,33,27,0,2,-43,-44,-41,-36,-48,-48,-49,-42,-64,-34,-33,-32,-37,-22,-32,0,0,0,0,0,-16,-11,-4,0,0,0,0,0,0,0,0,7,0,0,0,0,0]} 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 c6 5. Qd2 b5 6. Bd3 Nd7 7. Nf3 a6 8. Ne2 {B06: Modern Defence.} e5 9. O-O Bb7 10. c3 {White is slightly better.} Ngf6 11. Bh6 O-O 12. Bxg7 Kxg7 13. Ng3 c5 14. Qg5 {And now Nf5+ would win.} Ne8 {[#]} 15. Qd2 $146 ({Predecessor:} 15. Qe3 Nef6 16. Rfd1 exd4 17. cxd4 Re8 18. Rac1 c4 19. Bb1 Nxe4 20. Bxe4 Bxe4 21. Nxe4 {0-1 (32) Do Amaral,R-Bossenbroek,H LSS email 2006}) 15... Qf6 16. Bc2 Nc7 17. d5 Nb6 18. b3 Bc8 19. Qg5 (19. Qd3 {keeps more tension.} a5 20. Nd2 Qe7 21. f4 exf4 22. Rxf4 f6 23. Rff1) 19... Qxg5 20. Nxg5 a5 {[%cal Ba6a5,Ba5a4][%mdl 32]} 21. Nf3 b4 22. c4 a4 23. a3 Na6 24. Nd2 bxa3 25. Rxa3 Nb4 26. Rc1 {[%cal Rb3a4]} Nxc2 27. Rxc2 {The position is equal.} axb3 28. Rxb3 Ra1+ 29. Rb1 (29. Ndf1 {is interesting.} Nd7 30. f3 f5 31. exf5 gxf5 32. Rbb2) 29... Rxb1+ 30. Nxb1 Ba6 31. Nd2 Rb8 32. Ngf1 f5 33. exf5 gxf5 34. Ne3 Kg6 35. g4 Bc8 $1 36. gxf5+ Bxf5 37. Rb2 {Accuracy: White = 78%, Black = 84%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.21"]
[White "Dominguez, Facundo"]
[Black "Serafim Junior, Arnor"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2135"]
[BlackElo "1765"]
[Annotator "TA"]
[PlyCount "127"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,127,12,12,9,16,10,10,10,10,6,21,7,30,26,37,27,73,105,96,66,73,-43,-33,-70,-34,-78,-65,-133,-81,-83,-48,-102,-48,-37,-24,-26,-43,-48,41,-136,-78,-83,-81,-160,-66,-76,-31,-39,-40,-57,-16,-23,-25,-58,-4,-25,0,-19,-19,-31,-25,-87,0,-42,0,-102,-109,-102,-111,-112,-98,-197,-196,-205,-164,-226,-210,-210,-183,-170,-111,-149,-138,-141,-131,-98,0,-160,-155,-1088,-1087,-1413,-1375,-1177,0,0,0,0,0,0,43,15,31,29,78,35,54,0,17,19,45,44,29998,29999]} 1. e4 c5 2. Nf3 e6 3. b3 d6 4. Bb2 Nf6 5. Bb5+ Bd7 6. Bxd7+ Nbxd7 7. Qe2 Be7 8. O-O O-O 9. d3 {B52: Sicilian: Moscow Variation with 3...Bd7.} Qc7 10. Nbd2 Rac8 11. a4 {The position is equal.} Rfe8 {[#]} 12. Rfe1 $146 ({Predecessor:} 12. Ne1 Bf8 13. f4 e5 14. fxe5 Nxe5 15. Nef3 Nfd7 16. Nxe5 Nxe5 17. Bxe5 dxe5 18. Nc4 {½-½ (46) Nikolic,Z (2455)-Dabetic,R (2315) Cetinje 1990}) 12... Nh5 13. e5 d5 14. Qe3 g6 15. g4 Ng7 16. Qh6 Qd8 17. Kg2 f5 18. h3 (18. exf6 $1 $16 Bxf6 19. Bxf6 Qxf6 20. c4) 18... Rf8 $15 19. a5 a6 20. Ra4 Rf7 21. Rh1 (21. c3 $15) 21... Ne8 (21... Qc7 $142 $1 22. Raa1 d4) 22. Qe3 $17 Nb8 23. h4 ({White should play} 23. d4 $15) 23... fxg4 (23... Nc6 $17 24. g5 Ng7) 24. Rxg4 $15 Ng7 $1 25. h5 $1 {[%cal Rh5g6]} Nf5 26. Qe2 Rg7 (26... g5 $15) 27. Nf1 $2 (27. hxg6 $14 {was forced to keep a grip.} Rxg6 28. Rxg6+ hxg6 29. c4) 27... gxh5 ({Stronger than} 27... Qxa5 28. hxg6 hxg6 29. Ng3 $14) (27... g5 $142 $1 28. Ng3 Nh6) 28. Rxg7+ $17 Nxg7 29. Bc1 (29. Ng3 $142) 29... Qe8 ({Much weaker is} 29... Qxa5 $6 30. Ng3 $11) (29... Nc6 $1 $17 30. Qd2 Qe8) 30. Ng3 $15 Qg6 31. Kf1 $1 Kh8 32. Nh4 Qf7 {next ...Rf8 is good for Black.} (32... Bxh4 $5 33. Rxh4 Rg8 $15) 33. Bh6 Nc6 34. Bxg7+ $1 Qxg7 ({Black should try} 34... Kxg7 $15 35. Qxh5 Qxh5 36. Nxh5+ Kf7) 35. Qxh5 $11 Bxh4 (35... Nxe5 $2 36. Qxe5 $1 {[%mdl 512]} Bxh4 37. Qxg7+ Kxg7 38. Rxh4 $18) 36. Qxh4 Nxe5 37. Nh5 Qh6 38. Qg3 Nf7 (38... Nc6 $1 $17) 39. Qf3 Ne5 40. Qe2 (40. Qg3 $11 Nc6 41. Qf4 Qxf4 42. Nxf4) 40... Qc1+ $17 41. Kg2 Qg5+ $1 42. Ng3 {Hoping for Rh5.} Ng6 {...Nf4+ is the strong threat.} 43. Qe1 (43. Qe3 $17 Nf4+ 44. Kf1) 43... Rf8 $19 44. Kg1 Ne5 {aiming for ...Nf3+.} 45. Kg2 (45. Qe3 $142) 45... Qf6 46. Qe2 Ng6 {( -> ...Nf4+)} 47. Qe3 Nh4+ (47... Qg7 $19 48. Kf1 Qa1+ 49. Ke2 Qxa5) 48. Kg1 Nf3+ 49. Kf1 Qa1+ 50. Kg2 Qf6 ({Avoid the trap} 50... Qxa5 $2 51. Qh6 $1 $18 {[%mdl 512]}) (50... Qd4 $17 51. Qxe6 Nh4+ 52. Rxh4 Qxh4 53. Qxd5 Qd4 54. Qxd4+ cxd4) 51. Rh6 $2 {[#]} ({Only move:} 51. Kf1 $1 $11) 51... Nh4+ $1 $17 52. Kg1 $2 (52. Kf1 $17 Ng6 53. Qxc5) 52... Qa1+ $19 {[%mdl 64] Double Attack} 53. Kh2 Nf3+ 54. Kh3 Qe5 $2 ({Better is} 54... d4 $19 55. Qxf3 Rxf3) 55. Qxe5+ $11 Nxe5 56. Rxe6 {[%mdl 4096] Endgame KRN-KRN} Nc6 57. Kg2 Rf7 58. Nh5 {Re8+ would kill now.} (58. Rd6 $5 {[%cal Rd6d5]}) 58... Re7 59. Rd6 d4 60. Nf6 Nxa5 61. Nd7 (61. Ne4 $14) 61... Nc6 62. Nxc5 Nb4 63. Ne6 {White wants to mate with Rd8+.} Nxc2 $2 {[%mdl 8192]} (63... Kg8 $14) 64. Rd8+ {Accuracy: White = 55%, Black = 56%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.22"]
[White "Urrestarazu, Diego"]
[Black "Curi, Gabriel"]
[Result "0-1"]
[ECO "A11"]
[WhiteElo "1837"]
[BlackElo "2132"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,100,0,0,-14,25,21,15,16,31,20,33,13,30,-29,-16,-47,-35,-34,-31,-63,29,28,9,-91,-76,-85,-89,-87,-89,-103,-103,-108,-108,-108,-108,-108,-105,-101,-82,-108,-96,-125,-92,-125,-125,-129,-129,-132,-126,-151,-125,-140,-142,-220,-181,-185,-147,-189,-112,-117,-108,-108,-108,-112,-108,-108,-106,-100,-117,-143,-86,-81,-39,-375,-362,-510,-504,-1108,-1100,-993,-1087,-1076,-1060,-1181,-1088,-1352,-1243,-1640,-1392,-29962,-29974,-6648,-6087]} 1. c4 c6 2. Nc3 d5 3. cxd5 cxd5 4. d4 Nf6 5. g3 Nc6 6. Bg2 {D10: Slav Defence: 3 cxd5 (without early Nf3) and 3 Nc3} g6 7. Nf3 Ne4 8. Qb3 {The position is equal.} Nxc3 9. bxc3 Bg7 10. O-O O-O 11. Re1 (11. Ne5 $142) 11... Na5 $11 {[#]} 12. Qd1 $146 ({Predecessor:} 12. Qc2 Nc4 13. e4 e6 14. Bg5 Qa5 15. exd5 exd5 16. Be7 Re8 17. Bb4 Rxe1+ 18. Rxe1 {1-0 (33) Bispo,L (2131)-Sandstad Skrondal,I ICC INT 2009}) 12... Bf5 13. Nd2 Rc8 $36 {[%mdl 2048] Black has the initiative.} 14. Bb2 Nc4 (14... e5 $15 15. dxe5 Re8) 15. Nxc4 Rxc4 16. e4 (16. Qb3 $11) 16... dxe4 17. Bxe4 Bxe4 18. Rxe4 e6 19. Qb3 Qd5 20. Re2 Rfc8 21. Rae1 h5 22. h4 Bf6 23. Re3 Kg7 24. Qd1 Rd8 (24... b5 {feels hotter.} 25. a3 Kg8 26. Rd3 Rd8 27. Qc1 Bg7) 25. Qf3 Ra4 26. Qxd5 Rxd5 27. a3 Rb5 28. R1e2 Rc4 29. Kg2 Kf8 30. Rf3 Be7 31. Rf4 (31. Rfe3 $17 {was called for.}) 31... Bd6 32. Rf3 {intending Rxe6.} Kg8 33. Rd3 Rd5 ({Better is} 33... Rb3 $19 34. Rdd2 b6) 34. Rd1 $17 Ra4 35. Rc2 {and if c4 works, White does fine.} b5 ({But not} 35... Bxa3 $6 36. c4 $14) 36. Ra1 Kf8 37. Kf3 Ke8 38. Ke3 Kd7 39. f4 Kc6 (39... Ke7 $142 40. Re2 Kf6) 40. Kd3 Rc4 41. Ke3 $2 {[%mdl 8192] [#]} ({White should play} 41. a4 $15 Rxa4 42. Rxa4 bxa4 43. c4) 41... Rdxd4 $1 $19 {[%mdl 512]} 42. cxd4 (42. Rd2 $142 Rxd2 43. Kxd2) 42... Rxc2 43. Rc1 (43. d5+ $142 Kxd5 44. Bd4) 43... Rxc1 44. Bxc1 {[%mdl 4096] Endgame KB-KB} Kd5 45. Kd3 a5 {[%cal Ba7a5,Ba5a4,Ba4a3][%mdl 32]} 46. Bb2 a4 47. Bc1 b4 48. axb4 Bxb4 49. Bb2 a3 50. Ba1 Be1 {Accuracy: White = 51%, Black = 72%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.23"]
[White "Zaruski, Julio"]
[Black "Guerrero, Alvaro"]
[Result "0-1"]
[ECO "A10"]
[WhiteElo "1822"]
[BlackElo "2094"]
[Annotator "NA"]
[PlyCount "142"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 15,140,27,34,1,0,-21,-2,32767,32767,4,32767,-21,-32,-9,-8,-69,-82,-92,32767,32767,32767,-28,-24,-45,-53,-36,-42,32767,32767,32767,-55,-83,-44,-62,-38,-52,-40,-36,-36,-70,-50,-72,0,0,0,-78,-102,-103,-96,-143,-153,-156,-127,-134,-126,-126,-120,-193,-19,-164,-8,-21,0,-8,0,-8,0,-578,-830,-591,-888,32767,32767,32767,32767,32767,32767,32767,32767,32767,32767,32767,-1283,-827,32767,-1484,-2450,-1849,-2202,-1764,-3070,-6446,32767,32767,32767,32767,-29986,-29990,-29978,-29978,-12840,-12845,32767,-29987,-29979,-29961,-29985,-29970,-12843,-5118,32767,-29981,-29982,-29983,-29985,32767,32767,32767,32767,32767,32767,32767,32767,32767,32767,-29994,-29995]} 1. c4 {[%emt 0:00:00]} g6 {[%emt 0:05:27]} 2. g3 {[%emt 0:00:00]} Bg7 {[%emt 0:00:10]} 3. Bg2 {[%emt 0:00:12]} d6 {[%emt 0:01:32]} 4. Nc3 {[%emt 0:01:30]} Nc6 {[%emt 0:04:46]} 5. d3 {[%emt 0:00:59]} e6 {[%emt 0:03:02]} 6. e4 {[%emt 0:00:20] A10: English Opening: Unusual Replies for Black.} Nge7 {[%emt 0:00:52]} 7. Nge2 {[%emt 0:00:07]} O-O {[%emt 0:01:06] [#]} 8. O-O $146 {[%emt 0:00:46]} ({Predecessor:} 8. Be3 Ne5 9. h3 c6 10. f4 Nd7 11. O-O Re8 12. Qe1 Nf8 13. Qf2 f5 14. Rad1 {0-1 (37) Seidemann,U (2090)-Nagrocka,E (2105) Germany 1996}) 8... e5 {[%emt 0:04:53]} 9. Be3 {[%emt 0:03:47]} Nd4 {[%emt 0:00:27]} 10. Kh1 {[%emt 0:00:30]} c6 {[%emt 0:04:03]} 11. Qd2 {[%emt 0:01:57]} Bg4 {[%emt 0:04:26]} 12. f3 {[%emt 0:01:29]} Be6 {[%emt 0:00:03]} 13. Nd1 {[%emt 0:06:16]} f5 {[%emt 0:09:46]} 14. Nxd4 {[%emt 0:00:29]} exd4 {[%emt 0:00:03]} 15. Bg5 {[%emt 0:05:33]} fxe4 {[%emt 0:05:05]} 16. fxe4 {[%emt 0:02:11]} Rxf1+ {[%emt 0:00:07]} 17. Bxf1 {[%emt 0:00:09]} Qd7 {[%emt 0:00:58]} 18. b4 {[%emt 0:08:17]} Rf8 {[%emt 0:01:29]} 19. Nf2 {[%emt 0:00:57] [#]} h6 $1 {[%emt 0:01:23]} 20. Bxe7 $1 {[%emt 0:00:14]} Qxe7 {[%emt 0:00:03]} 21. Bg2 {[%emt 0:00:23]} Kh7 {[%emt 0:01:59]} 22. Nh3 {[%emt 0:01:23]} g5 {[%emt 0:07:59]} 23. Rf1 {[%emt 0:01:16]} Bf6 {[%emt 0:04:15]} 24. a3 {[%emt 0:01:36]} Qd7 {[%emt 0:00:21]} 25. Ng1 {[%emt 0:14:47]} Kg7 {[%emt 0:00:17]} 26. Qd1 {[%emt 0:05:25]} Rf7 {[%emt 0:01:53]} 27. Rf2 {[%emt 0:05:44]} b6 {[%emt 0:01:13]} 28. Qa4 {[%emt 0:01:47]} Kg8 {[%emt 0:11:00]} (28... c5 $15 29. b5 Bd8 30. Rxf7+ Qxf7) 29. e5 {[%emt 0:08:47]} b5 {[%emt 0:00:08]} 30. cxb5 {[%emt 0:01:21]} (30. Qa6 $11 Bxe5 31. Bxc6 {[%mdl 64] Double Attack}) 30... cxb5 {[%emt 0:00:04]} 31. Qd1 {[%emt 0:01:07]} dxe5 {[%emt 0:00:27]} 32. Qh5 {[%emt 0:01:10]} Bg7 {[%emt 0:01:37]} 33. Rxf7 {[%emt 0:00:52]} Bxf7 {[%emt 0:00:53]} 34. Qf3 {[%emt 0:00:18]} Bg6 {[%emt 0:01:46]} 35. Qa8+ {[%emt 0:00:56]} Kh7 {[%emt 0:00:13]} 36. Be4 {[%emt 0:00:12] [#]} (36. Bc6 $17 Qf7 37. Bd5) 36... Qf7 $2 {[%emt 0:04:40]} (36... g4 $1 $19 37. h4 h5) 37. Kg2 {[%emt 0:02:07] [#]} (37. g4 $1 $11) 37... Bxe4+ {[%emt 0:01:24]} (37... g4 $1 $17 38. h3 h5 39. hxg4 hxg4) 38. Qxe4+ {[%emt 0:00:21]} Qg6 {[%emt 0:00:01]} 39. Qxg6+ $1 {[%emt 0:01:49]} Kxg6 {[%emt 0:00:03]} 40. Kf3 $1 {[%emt 0:00:26]} h5 {[%emt 0:05:07]} 41. Ke4 $2 {[%emt 0:00:44]} (41. h3 $1 $11) 41... g4 {[%emt 0:00:08]} 42. Ne2 {[%emt 0:00:40] [#]} Kf6 $1 {[%emt 0:00:25]} 43. Nc1 {[%emt 0:01:52]} Bh6 {[%emt 0:01:16]} 44. Nb3 {[%emt 0:00:06]} Be3 {[%emt 0:00:33]} 45. Nc5 {[%emt 0:00:05]} Bg1 46. Nd7+ {[%emt 0:00:08]} Ke6 {[%emt 0:00:54]} 47. Nxe5 {[%emt 0:00:11]} Bxh2 {[%emt 0:00:10]} 48. Nc6 {[%emt 0:00:40]} Bxg3 {[%emt 0:00:43]} 49. Nxd4+ {[%emt 0:00:05]} Kf6 {[%emt 0:00:52]} 50. Ne2 {[%emt 0:12:11]} Bb8 {[%emt 0:00:27]} 51. Ke3 {[%emt 0:00:41]} h4 {[%emt 0:00:21]} 52. Kf2 {[%emt 0:00:33]} a6 {[%emt 0:01:49]} 53. Kg2 {[%emt 0:00:33]} Ke5 {[%emt 0:00:30]} 54. Nc3 {[%emt 0:02:10]} h3+ {[%emt 0:00:10]} 55. Kh1 {[%emt 0:00:50]} g3 {[%emt 0:00:29]} 56. Ne4 {[%emt 0:00:11]} Kd4 {[%emt 0:00:27]} 57. Ng5 {[%emt 0:01:56]} h2 {[%emt 0:01:15]} 58. Ne6+ {[%emt 0:01:22]} Kxd3 {[%emt 0:00:57]} 59. Kg2 {[%emt 0:00:52]} Kc4 {[%emt 0:00:17]} 60. Nc5 {[%emt 0:01:12]} Bd6 {[%emt 0:00:05]} 61. Ne4 {[%emt 0:00:34]} Be5 {[%emt 0:01:33]} 62. Nc5 {[%emt 0:00:28] [#]} a5 $1 {[%emt 0:00:09]} 63. Nd7 {[%emt 0:01:23]} axb4 {[%emt 0:02:20]} 64. axb4 {[%emt 0:00:12]} Bd4 {[%emt 0:00:20]} 65. Nb8 {[%emt 0:01:32]} Kxb4 {[%emt 0:00:04]} 66. Na6+ {[%emt 0:00:15]} Kc4 {[%emt 0:00:04]} 67. Kh1 {[%emt 0:00:20]} Be5 {[%emt 0:00:07]} 68. Kg2 {[%emt 0:00:55]} Bd6 {[%emt 0:00:02]} 69. Kh1 {[%emt 0:00:34]} Kd3 {[%emt 0:00:03]} 70. Kg2 {[%emt 0:00:42]} Ke2 {[%emt 0:00:04]} 71. Kh1 {[%emt 0:01:40]} Kf1 {[%emt 0:00:05]} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.24"]
[White "Torella, Rodolfo"]
[Black "Lanaro, Emilio"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "2081"]
[BlackElo "1671"]
[Annotator "NA RC"]
[PlyCount "58"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 14,58,-2,0,10,32767,15,40,55,59,68,47,64,58,50,0,124,-67,93,0,54,39,61,59,63,75,33,-32,2,-1,0,8,1,-116,-119,-185,-192,-177,-208,-179,-204,-224,-218,-218,-208,-227,-221]} 1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} d6 {[%emt 0:00:03]} 3. g3 {[%emt 0:05:10]} g6 {[%emt 0:02:36]} 4. Bg2 {[%emt 0:00:15]} Bg7 {[%emt 0:00:07]} 5. O-O {[%emt 0:01:23]} Nf6 {[%emt 0:00:12]} 6. Re1 {[%emt 0:01:13] B50: Sicilian: 2...d6, Miscellaneous.} O-O {[%emt 0:00:30]} 7. d4 {[%emt 0:04:56]} cxd4 {[%emt 0:12:46]} 8. Nxd4 {[%emt 0:00:12] [#]} Re8 $146 {[%emt 0:04:05]} ({Predecessor:} 8... Qc7 9. Nc3 Nc6 10. Nde2 Rb8 11. a4 a6 12. h3 b5 13. axb5 axb5 14. Bg5 b4 15. Bxf6 exf6 {1-0 (52) Gukesh,D (2433)-Slovak,K (2285) Pardubice 2018}) 9. h3 {[%emt 0:06:03]} Nbd7 {[%emt 0:06:54]} 10. c4 {[%emt 0:04:26]} a6 {[%emt 0:05:36]} 11. Nc3 {[%emt 0:02:56]} Rb8 {[%emt 0:06:03]} 12. Be3 {[%emt 0:01:30]} Nc5 {[%emt 0:06:07]} 13. b4 {[%emt 0:10:25]} Ne6 {[%emt 0:03:51]} 14. Nb3 {[%emt 0:04:20]} (14. Rc1 $14) 14... Bd7 {[%emt 0:10:42]} (14... Ng4 $1 $11) 15. a4 $2 {[%emt 0:08:24]} (15. Rc1 $16) 15... Qc8 $2 {[%emt 0:04:34] [#]} (15... Ng4 $1 $17 {and life is bright.} 16. Rc1 Nxe3 17. Rxe3 Bxc3 18. Rcxc3 Bxa4) 16. Qd3 {[%emt 0:02:46]} ({Only move:} 16. Rc1 $1 $16) 16... Nc7 {[%emt 0:06:15]} (16... Nd8 $11) 17. Kh2 {[%emt 0:04:14]} b5 {[%emt 0:03:28]} 18. axb5 {[%emt 0:00:36]} axb5 {[%emt 0:00:06] [#]} 19. c5 $1 {[%emt 0:11:08]} Na6 {[%emt 0:08:40]} 20. Na2 {[%emt 0:02:00]} (20. Rac1 $14) 20... Be6 {[%emt 0:01:24]} 21. cxd6 {[%emt 0:05:10]} Bc4 {[%emt 0:01:07]} 22. Qc2 {[%emt 0:03:59]} exd6 {[%emt 0:01:14]} 23. e5 {[%emt 0:05:57]} (23. Na5 $11 {remains equal.}) 23... dxe5 {[%emt 0:04:18]} 24. Ba7 {[%emt 0:00:55]} (24. Nc5 $17 {was called for.}) 24... Bd5 {[%emt 0:02:40]} 25. Qxc8 {[%emt 0:01:04]} Rbxc8 {[%emt 0:00:07]} 26. Nc5 {[%emt 0:00:44]} Ra8 {[%emt 0:05:05]} 27. Nxa6 {[%emt 0:03:47]} Rxa7 {[%emt 0:00:04]} 28. Nc3 {[%emt 0:01:54]} Bxg2 {[%emt 0:00:42]} 29. Nxb5 {[%emt 0:00:26] [#]} Rxa6 $19 {[%emt 0:01:10]} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.25"]
[White "Manteiga, Franco"]
[Black "Suarez, Pedro"]
[Result "1/2-1/2"]
[ECO "E43"]
[WhiteElo "1703"]
[BlackElo "2063"]
[Annotator "NA RC"]
[PlyCount "58"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 12,58,6,6,0,32767,33,3,37,-15,-16,-18,16,9,12,4,25,16,35,15,24,24,30,27,63,68,98,82,85,62,105,80,95,114,157,138,165,102,108,119,120,69,88,79,75,59,59,54,45]} 1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:01:13]} 2. c4 {[%emt 0:00:00]} e6 {[%emt 0:00:15]} 3. Nc3 {[%emt 0:00:00]} Bb4 {[%emt 0:03:11]} 4. e3 {[%emt 0:01:41]} b6 {[%emt 0:02:02]} 5. Bd3 {[%emt 0:07:55]} Bb7 {[%emt 0:03:03]} 6. Nge2 {[%emt 0:00:27]} O-O {[%emt 0:03:27]} (6... Bxg2 $17 7. Rg1 Bf3) 7. O-O {[%emt 0:02:41]} (7. a3 $5 {[%cal Ra3b4]} Be7 8. O-O $11) 7... d5 {[%emt 0:02:25]} 8. a3 {[%emt 0:11:23]} Bd6 {[%emt 0:19:47] E47: Nimzo-Indian: Rubinstein: 5 Bd3 without ...d5} 9. Ng3 {[%emt 0:23:19]} Nbd7 {[%emt 0:10:10]} 10. b3 {[%emt 0:13:40]} Re8 {[%emt 0:06:15] [#]} 11. cxd5 $146 {[%emt 0:09:04]} ({Predecessor:} 11. Bb2 c5 12. cxd5 exd5 13. Rc1 Rc8 14. dxc5 bxc5 15. Nb5 {0-1 (108) Navalgund,N (2312)-Rozum,I (2595) New Delhi 2018}) 11... Bxg3 {[%emt 0:01:31]} 12. hxg3 {[%emt 0:01:15]} exd5 {[%emt 0:00:41]} 13. Bb2 {[%emt 0:05:33]} a6 {[%emt 0:04:54]} 14. Rc1 {[%emt 0:02:52]} Nf8 {[%emt 0:02:43]} 15. Rc2 {[%emt 0:07:32]} Ne6 {[%emt 0:06:38]} 16. Qd2 {[%emt 0:01:04]} Ng5 {[%emt 0:02:07]} 17. Rfc1 {[%emt 0:00:57]} Re7 {[%emt 0:12:23]} 18. a4 {[%emt 0:02:13]} Qd6 {[%emt 0:00:28]} 19. Nb1 {[%emt 0:02:18]} Nfe4 {[%emt 0:04:05]} 20. Qe2 {[%emt 0:00:35]} c5 {[%emt 0:05:16]} 21. Ba3 {[%emt 0:01:25]} Rc7 {[%emt 0:00:48]} 22. Nd2 {[%emt 0:00:32]} Nxd2 {[%emt 0:00:49]} 23. Qxd2 {[%emt 0:00:54]} ({Don't take} 23. Rxd2 $6 a5 $16) ({Don't do} 23. dxc5 $6 bxc5 24. Qxd2 Rac8 $14) 23... Rac8 {[%emt 0:00:54]} 24. Qe2 {[%emt 0:01:00]} (24. a5 $18) 24... a5 {[%emt 0:00:40]} 25. Bf5 {[%emt 0:00:43]} Ne6 {[%emt 0:00:24]} 26. Bxe6 {[%emt 0:00:58]} fxe6 {[%emt 0:00:12]} 27. Qb5 {[%emt 0:01:07]} Qc6 {[%emt 0:02:05]} 28. Qxc6 {[%emt 0:00:22]} Rxc6 $14 {[%emt 0:00:05]} 29. dxc5 {[%emt 0:00:13]} Ba6 {[%emt 0:00:27]} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.26"]
[White "Moreno, Nelson"]
[Black "Brizzi, Milagros Tatiana"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "1656"]
[BlackElo "2022"]
[Annotator "NA RC"]
[PlyCount "117"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 8,117,8,14,25,32767,32767,32767,32767,-29,-18,-29,-36,-28,-34,-78,32767,-30,63,0,15,0,19,0,64,-20,7,15,26,-91,0,-25,-12,-55,-55,-98,-8,-27,5,0,0,-89,-69,-70,3,-154,0,-46,-52,-83,0,-49,-11,-134,-82,-115,-93,-128,-55,-105,-96,-141,-125,-125,-88,-183,-218,32767,-309,-342,-354,32767,-333,-314,-314,-350,-374,32767,32767,32767,32767,-542,-575,-843,-514,-920,-526,-843,-384,-758,-404,-381,-272,-360,-172,-177,32767,32767,32767,32767,32767,-634,-824,32767,32767,32767,32767,32767,32767,32767,-585,-29984]} 1. e4 {[%emt 0:00:36]} c6 {[%emt 0:00:00]} 2. d4 {[%emt 0:00:11]} d5 {[%emt 0:00:00]} 3. exd5 {[%emt 0:00:06]} cxd5 {[%emt 0:00:01]} 4. c4 {[%emt 0:01:27]} Nf6 {[%emt 0:00:23]} 5. Nc3 {[%emt 0:00:07]} Nc6 {[%emt 0:00:10]} 6. Nf3 {[%emt 0:03:46]} Bg4 {[%emt 0:00:50]} 7. Be3 {[%emt 0:01:43]} e6 {[%emt 0:08:24]} 8. Bd3 {[%emt 0:04:58] B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack.} Be7 {[%emt 0:01:34]} 9. O-O {[%emt 0:00:08]} O-O {[#]} 10. a3 $146 {[%emt 0:01:53]} ({Predecessor:} 10. Rc1 Rc8 11. cxd5 Nxd5 12. Ne4 e5 13. dxe5 Nxe5 14. Rxc8 Qxc8 15. Be2 Rd8 16. Nd4 Bxe2 17. Qxe2 Nxe3 18. fxe3 {1-0 (34) Balint,V (2274)-Gal,T (2080) Nyiregyhaza 2004}) 10... Rc8 {[%emt 0:06:39]} 11. c5 {[%emt 0:02:09]} (11. cxd5 $11 Nxd5 12. h3) 11... e5 {[%emt 0:01:56]} 12. Be2 {[%emt 0:02:19]} e4 {[%emt 0:23:36]} (12... Bxf3 $15 13. Bxf3 exd4 14. Bxd4 Nxd4 15. Qxd4 Bxc5) 13. Nd2 {[%emt 0:04:39]} Bxe2 {[%emt 0:04:25]} 14. Nxe2 {[%emt 0:01:26]} Ne8 {[%emt 0:02:36]} 15. Qb3 {[%emt 0:01:43]} Rb8 {[%emt 0:01:57]} (15... b6 $11) 16. Nf4 {[%emt 0:00:54]} (16. Bf4 $14) 16... Nc7 {[%emt 0:00:55]} 17. f3 {[%emt 0:00:11]} Bf6 {[%emt 0:04:07]} 18. Ne2 {[%emt 0:10:41]} (18. fxe4 $11 Bxd4 19. Bxd4 Nxd4 20. Qd3 dxe4 21. Nxe4) 18... Ne6 {[%emt 0:03:24]} (18... b6 $17 19. cxb6 Rxb6) 19. Qc3 {[%emt 0:00:13]} exf3 {[%emt 0:03:52]} 20. Rxf3 {[%emt 0:04:36]} b6 {[%emt 0:01:58]} 21. cxb6 {[%emt 0:03:09]} Rxb6 {[%emt 0:02:52]} ({Better is} 21... Qxb6 $17 22. Qd3 Qb5 23. Qxb5 Rxb5) 22. b4 {[%emt 0:00:30]} g6 {[%emt 0:04:47]} 23. Raf1 {[%emt 0:14:58]} Bg7 {[%emt 0:00:07]} 24. Rg3 {[%emt 0:09:13]} (24. Nb3 $11 {keeps the balance.}) 24... Qc8 {[%emt 0:03:41]} 25. Qd3 {[%emt 0:01:09]} Qb8 {[%emt 0:01:09]} (25... Re8 $15) 26. Nc3 {[%emt 0:02:58]} (26. Nb3 $1 $11 {remains equal.}) 26... Qd8 {[%emt 0:02:03]} (26... Ncxd4 $17 27. Bxd4 (27. Nxd5 $2 Rd6 $19) 27... Nxd4) 27. Nf3 {[%emt 0:02:20]} Rb7 {[%emt 0:01:00]} 28. Qa6 {[%emt 0:02:46]} Rb6 {[%emt 0:07:10]} (28... Re7 $17) 29. Qd3 {[%emt 0:00:07]} Rb8 {[%emt 0:03:45]} 30. Rc1 {[%emt 0:04:06]} (30. Na4 $11) 30... Rc8 {[%emt 0:01:21]} 31. Ne2 {[%emt 0:00:22]} Qb6 {[%emt 0:01:20]} 32. Kh1 {[%emt 0:04:40]} (32. Rf1 $15) 32... Rfe8 {[%emt 0:03:09]} ({Better is} 32... Ne7 $17 33. Rd1 Nf5) 33. Rd1 {[%emt 0:03:45]} (33. Rf1 $15) 33... Ne7 {[%emt 0:01:47]} 34. Bg1 {[%emt 0:08:02]} Nf5 {[%emt 0:00:52]} 35. Rh3 {[%emt 0:00:41]} Qd6 {[%emt 0:01:43]} 36. Ne5 {[%emt 0:01:17]} (36. Rf1 $17) 36... Ng5 {[%emt 0:00:55]} 37. Nf4 {[%emt 0:02:18]} Nxh3 {[%emt 0:01:26]} 38. Nxh3 {[%emt 0:00:01]} f6 {[%emt 0:01:34]} 39. g4 {[%emt 0:01:08]} Ne7 {[%emt 0:01:10]} 40. Nf3 {[%emt 0:00:34]} Rc7 {[%emt 0:00:19]} 41. Bf2 {[%emt 0:00:15]} Qd7 {[%emt 0:00:22]} 42. Bg3 {[%emt 0:00:54]} Rc6 {[%emt 0:00:18]} 43. Nf2 {[%emt 0:00:11]} Re6 {[%emt 0:00:16]} 44. g5 $2 {[%emt 0:00:26]} (44. Rc1 {was called for.}) 44... Nf5 {[%emt 0:00:24]} 45. Bf4 {[%emt 0:00:14]} fxg5 {[%emt 0:01:16]} 46. Bxg5 {[%emt 0:00:11]} Qf7 {[%emt 0:00:34]} 47. Ng4 {[%emt 0:00:51]} h6 {[%emt 0:00:44]} (47... Ne3 $142 48. Nfe5 Rxe5 49. Nxe5 Rxe5) 48. Bc1 {[%emt 0:00:59]} (48. Nge5 $142 Bxe5 49. Nxe5 Rxe5 50. dxe5 hxg5 51. Qxd5) 48... Qc7 {[%emt 0:00:29]} 49. Nge5 {[%emt 0:00:48]} Rf8 {[%emt 0:00:36]} ({Much less strong is} 49... Bxe5 50. dxe5 d4 51. Bd2 $19) 50. Rg1 {[%emt 0:00:54]} Ne7 {[%emt 0:00:19]} ({Weaker is} 50... Bxe5 51. Nxe5 g5 52. b5 $19) (50... g5 $142 51. Bb2 Nd6) 51. Bd2 {[%emt 0:00:51]} Ref6 {[%emt 0:00:42]} 52. Nh4 {[%emt 0:00:31]} g5 {[%emt 0:00:28]} 53. Nhg6 {[%emt 0:00:26]} Nxg6 {[%emt 0:00:18]} 54. Nxg6 {[%emt 0:00:07] [#]} Rf2 $1 {[%emt 0:00:31]} 55. Ne5 {[%emt 0:01:08]} Bxe5 {[%emt 0:00:31]} 56. dxe5 {[%emt 0:00:01]} Qxe5 {[%emt 0:00:10]} 57. Qg6+ {[%emt 0:00:02]} Qg7 {[%emt 0:00:12]} 58. Qe6+ {[%emt 0:00:19]} Qf7 59. Qe3 {[%emt 0:02:32]} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.27"]
[White "Meskanen, Vesa"]
[Black "Cardozo, Camila"]
[Result "1-0"]
[ECO "E06"]
[WhiteElo "2019"]
[BlackElo "1539"]
[Annotator "NA RC"]
[PlyCount "56"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 8,56,0,11,32767,32767,32767,32767,32767,32767,32767,32767,32767,-5,32767,-14,0,0,-12,0,64,25,27,19,158,144,207,121,114,34,39,62,32767,30,16,0,142,32767,118,158,194,198,303,306,445,478,480,511,536,506,506]} 1. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:03]} 2. c4 {[%emt 0:00:00]} e6 {[%emt 0:00:24]} 3. Nf3 Nf6 {[%emt 0:00:53]} 4. g3 {[%emt 0:00:05]} Be7 {[%emt 0:00:43]} 5. Bg2 {[%emt 0:00:15]} O-O {[%emt 0:01:01]} 6. O-O {[%emt 0:00:17]} dxc4 7. Qc2 {[%emt 0:03:59]} a6 {[%emt 0:03:24]} 8. Qxc4 {[%emt 0:06:50]} b5 {[%emt 0:01:33]} 9. Qc2 {[%emt 0:00:58]} Bb7 {[%emt 0:00:52]} 10. Bf4 {[%emt 0:15:01]} Nd5 {[%emt 0:04:40]} 11. Bd2 {[%emt 0:01:59]} Nd7 {[%emt 0:05:24] E05: Open Catalan: 5 Nf3 Be7} 12. e4 {[%emt 0:10:04]} N5f6 {[%emt 0:01:52]} 13. e5 {[%emt 0:07:29] [#]} Ne4 $146 {[%emt 0:06:11]} ({Black should try Predecessor:} 13... Nd5 $11 14. a3 c5 15. dxc5 Nxc5 16. Nc3 Rc8 17. Rfd1 h6 18. Rac1 Qb6 19. Nxd5 Bxd5 {0-1 (55) Salem,Z-Jhunjhnuwala,N (2250) Thessaloniki 1984}) 14. Ba5 {[%emt 0:02:33]} Nb6 {[%emt 0:09:54]} 15. b3 {[%emt 0:09:55]} c5 {[%emt 0:45:39] [#]} (15... Ra7 $11) 16. Rd1 $1 {[%emt 0:12:49]} Qc7 {[%emt 0:14:04]} 17. Ne1 {[%emt 0:16:49]} (17. Re1 $18) 17... f5 {[%emt 0:14:34]} 18. f3 {[%emt 0:06:00]} (18. exf6 $1 $16 Nxf6 19. dxc5 Bxc5 20. b4 Bxg2 21. bxc5) 18... Ng5 {[%emt 0:02:02] [#]} 19. Rc1 $1 {[%emt 0:05:12]} Rac8 {[%emt 0:01:46]} 20. dxc5 {[%emt 0:04:16]} Bxc5+ {[%emt 0:04:41] [#]} ({Much worse is} 20... Qxe5 $6 21. Bxb6 f4 22. gxf4 $16 (22. Qc3 Qb8 $16)) 21. Qxc5 $1 {[%emt 0:02:25] Remove Defender} Qxc5+ {[%emt 0:00:18]} (21... Qd7 $1 $11 22. Qe3 (22. Bxb6 Rxc5 23. Bxc5 Rc8 $17) (22. Qxb6 Rxc1 23. Bd2 Rd1 $11) 22... Rxc1 23. Qxc1 Qd4+ 24. Kf1 Qxa1 25. Bxb6 h6) 22. Rxc5 {[%emt 0:00:09]} Rxc5 {[%emt 0:00:13]} 23. Bxb6 {[%emt 0:00:09]} Rxe5 {[%emt 0:01:24]} 24. Nc3 {[%emt 0:03:37]} b4 {[%emt 0:04:19]} (24... f4 {was called for.} 25. gxf4 Rxf4) 25. Nd3 {[%emt 0:03:33]} bxc3 {[%emt 0:00:33]} 26. Nxe5 {[%emt 0:03:47]} Rc8 {[%emt 0:00:29]} 27. Rc1 {[%emt 0:00:55]} Kf8 {[%emt 0:01:02]} 28. h4 $18 {[%emt 0:00:48]} Nf7 {[%emt 0:01:32]} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.28"]
[White "De Cuadro, Dionisio"]
[Black "Gomez Troccoli, Martin"]
[Result "1-0"]
[ECO "A21"]
[WhiteElo "1650"]
[BlackElo "2004"]
[Annotator "NA RC"]
[PlyCount "69"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 29,69,-122,0,-140,-13,32767,32767,0,-3,10,9,7,135,167,137,43,68,74,138,127,146,67,85,89,82,0,95,55,45,55,83,69,214,254,347,385,435,510,1427,1736,29995,29996]} 1. c4 {[%emt 0:01:03]} e5 {[%emt 0:00:00]} 2. Nc3 {[%emt 0:00:12]} g6 {[%emt 0:00:00]} 3. g3 {[%emt 0:00:14]} Bg7 {[%emt 0:00:05]} 4. Bg2 {[%emt 0:00:11]} Ne7 {[%emt 0:00:20]} 5. e3 {[%emt 0:00:11]} d6 {[%emt 0:00:14]} 6. Nge2 {[%emt 0:00:20]} O-O {[%emt 0:00:26]} 7. O-O {[%emt 0:00:21]} Nd7 {[%emt 0:00:13] A21: English Opening: 1...e5 2 Nc3.} 8. d4 {[%emt 0:00:33]} exd4 {[%emt 0:00:17]} 9. exd4 {[%emt 0:00:33]} Nf5 {[%emt 0:00:38] [#]} 10. Nd5 $146 {[%emt 0:02:41]} ({Predecessor:} 10. a4 a5 11. b3 Nb8 12. Bb2 Nc6 13. Nd5 Nfe7 14. Nef4 Nxd5 15. Nxd5 Ne7 16. Nxe7+ Qxe7 {½-½ (90) Zwaig,A (2450)-Szmetan,J (2435) Amsterdam 1977}) 10... Nb6 {[%emt 0:01:02]} 11. Nxb6 {[%emt 0:01:56]} axb6 {[%emt 0:00:05]} 12. Qd3 {[%emt 0:01:01]} Qf6 {[%emt 0:00:36]} 13. Rd1 {[%emt 0:03:37]} Re8 {[%emt 0:00:14]} 14. b3 {[%emt 0:02:25]} Qe7 {[%emt 0:00:46]} 15. Rd2 {[%emt 0:02:17] [#]} (15. Bf3 $11) 15... Bh6 {[%emt 0:01:42]} (15... Nxd4 $1 $17 {[%mdl 512]} 16. Nxd4 Bxd4) 16. Nf4 {[%emt 0:02:53]} (16. Rc2 $11 {remains equal.}) 16... Nxd4 {[%emt 0:07:41]} (16... Bxf4 $1 $17 17. gxf4 Nh4) 17. Bb2 {[%emt 0:05:07]} c5 18. Nd5 {[%emt 0:03:24]} Qd8 {[%emt 0:00:53]} 19. Bxd4 {[%emt 0:03:26]} cxd4 {[%emt 0:00:09]} 20. Re2 {[%emt 0:00:40]} Bg7 {[%emt 0:00:40] [#]} (20... Re5 $11) 21. Rxe8+ $1 {[%emt 0:01:14]} Qxe8 {[%emt 0:00:06]} 22. Nxb6 {[%emt 0:00:36]} (22. Nc7 $16 Bf5 23. Qf3) 22... Bf5 {[%emt 0:00:24]} 23. Qd2 {[%emt 0:02:04]} Ra7 {[%emt 0:09:11]} ({Black should try} 23... Rd8) 24. Re1 {[%emt 0:00:10]} Qd8 {[%emt 0:00:21]} 25. Nd5 {[%emt 0:00:30]} Be6 $11 {[%emt 0:00:47] keeps the balance.} 26. Nf4 {[%emt 0:03:47]} Bg4 {[%emt 0:02:44]} 27. Nd5 {[%emt 0:00:34]} ({Better is} 27. h3 $16 Bf5 28. a4) 27... h5 {[%emt 0:00:39]} 28. h3 {[%emt 0:00:46]} Be6 {[%emt 0:00:21]} 29. a4 {[%emt 0:02:03]} Kh7 {[%emt 0:00:22]} 30. h4 {[%emt 0:00:56]} Bf5 $2 {[%emt 0:01:58]} (30... Bxd5 $14 31. Bxd5 b6) 31. Re7 {[%emt 0:03:29]} Be6 {[%emt 0:01:11] [#]} (31... Qf8 {was called for.} 32. Be4 Bxe4 33. Rxe4 Qc8) 32. Qg5 $1 {[%emt 0:02:38]} Bxd5 {[%emt 0:04:24]} 33. Bxd5 {[%emt 0:01:53]} ({Inferior is} 33. cxd5 Kg8 $11) 33... f6 $18 {[%emt 0:01:15]} (33... Ra5 $142 34. Rxb7 Qxg5 35. hxg5 Kh8 36. Rxf7 d3) 34. Qxf6 $1 {[%emt 0:02:14]} Qh8 {[%emt 0:00:28] [#]} 35. Be4 $1 {[%emt 0:00:42]} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.29"]
[White "Soto, Nicolas"]
[Black "Kulik, Nicolas"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2002"]
[BlackElo "1496"]
[Annotator "NA RC"]
[PlyCount "99"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 9,85,51,44,36,38,14,32,8,18,12,31,20,47,-35,-43,-23,32767,-25,0,-43,21,-38,-40,-69,-58,-49,-56,0,-43,-70,-63,-80,-50,-110,-101,-129,-104,-108,-91,-75,-49,-68,-50,-58,-33,-66,-79,-67,-47,-110,-79,-45,-58,-112,0,0,10,12,25,0,42,12,66,40,340,339,431,347,317,345,373,336,370,32767,541,573,555,612]} 1. e4 {[%emt 0:11:15]} d5 {[%emt 0:00:00]} 2. exd5 {[%emt 0:04:45]} Qxd5 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:00:08]} Qd6 {[%emt 0:00:00]} 4. d4 {[%emt 0:01:37]} c6 {[%emt 0:00:00]} 5. Bc4 {[%emt 0:03:38]} Nf6 {[%emt 0:00:12]} 6. h3 {[%emt 0:01:48] B01: Scandinavian Defence.} Bf5 {[%emt 0:00:11]} 7. Nge2 {[%emt 0:01:18]} e6 {[%emt 0:00:20]} 8. Bf4 {[%emt 0:01:10]} Qd8 {[%emt 0:00:29]} 9. Qd2 {[%emt 0:01:49]} Bd6 {[%emt 0:00:24] [#]} 10. O-O-O $146 {[%emt 0:03:56]} ({Predecessor:} 10. Bb3 Qc7 11. Bxd6 Qxd6 12. Nf4 h6 13. g4 Bh7 14. O-O-O Nbd7 15. Rhg1 g5 16. Nfe2 {½-½ (31) Nemcova,K (1659)-Vavrinkova,E (1488) Kouty nad Desnou 2014}) 10... b5 {[%emt 0:02:01]} 11. Bd3 {[%emt 0:06:26]} ({Better is} 11. d5 $14 Bc5 12. Bd3) 11... Bxd3 {[%emt 0:00:31]} 12. Qxd3 {[%emt 0:01:32]} O-O {[%emt 0:01:34]} 13. Bg5 {[%emt 0:02:08]} Be7 {[%emt 0:01:06]} 14. Kb1 {[%emt 0:05:22]} (14. Bxf6 $5 Bxf6 15. Ne4 $11) 14... a5 {[%emt 0:01:41]} 15. Qf3 {[%emt 0:03:54]} (15. Bxf6 $5 Bxf6 16. Ne4 $11) 15... Nd5 {[%emt 0:01:08]} 16. Bxe7 {[%emt 0:00:49]} Qxe7 {[%emt 0:01:59]} 17. Rhe1 {[%emt 0:00:23]} Nd7 {[%emt 0:00:41]} 18. Nxd5 {[%emt 0:02:45]} cxd5 {[%emt 0:00:53]} 19. Nf4 {[%emt 0:04:50]} ({White should try} 19. Nc3 $1 $11) 19... Qf6 {[%emt 0:03:03]} 20. Qg3 {[%emt 0:00:43]} Rac8 {[%emt 0:01:02]} 21. Re3 {[%emt 0:10:35]} Rc4 {[%emt 0:02:49]} 22. Red3 {[%emt 0:00:35]} Rfc8 {[%emt 0:00:52]} 23. R1d2 {[%emt 0:00:28]} Nf8 {[%emt 0:01:35]} 24. Nh5 {[%emt 0:03:36]} Qg6 {[%emt 0:00:37]} 25. Qxg6 {[%emt 0:03:07]} Nxg6 {[%emt 0:00:44]} 26. Rg3 {[%emt 0:00:10]} f6 {[%emt 0:02:28]} 27. b3 {[%emt 0:02:46]} R4c7 {[%emt 0:03:49]} 28. Kb2 {[%emt 0:07:53]} a4 {[%emt 0:06:15]} 29. c3 {[%emt 0:02:50]} (29. a3 $15) 29... Kf8 {[%emt 0:01:46]} 30. Re3 {[%emt 0:01:00]} Kf7 {[%emt 0:01:42]} 31. g3 {[%emt 0:01:52]} Nf8 {[%emt 0:07:03]} (31... axb3 $17 32. axb3 Ra7) 32. Nf4 {[%emt 0:00:36]} Rc6 {[%emt 0:01:00]} 33. Rde2 {[%emt 0:02:03]} R8c7 {[%emt 0:09:39]} 34. h4 {[%emt 0:00:15]} Rc8 {[%emt 0:00:51]} 35. Nd3 {[%emt 0:04:43]} Nd7 {[%emt 0:02:08]} 36. Nb4 {[%emt 0:00:32]} R6c7 $2 {[%emt 0:00:31]} (36... Rd6 $1 $14) 37. Rxe6 {[%emt 0:01:07]} Ne5 {[%emt 0:11:14]} 38. Rd6 {[%emt 0:00:28]} ({Not} 38. dxe5 Kxe6 39. exf6+ Kd6 $14) 38... Nf3 {[%emt 0:04:27]} 39. Nxd5 {[%emt 0:00:48]} Ra7 {[%emt 0:00:55]} 40. b4 {[%emt 0:01:14]} a3+ {[%emt 0:01:03]} 41. Kb3 {[%emt 0:00:41]} h5 {[%emt 0:01:20]} (41... Rb8 {is a better defense.} 42. Kc2 Ng1) 42. Rb6 {[%emt 0:00:22]} Re8 $18 {[%emt 0:03:16]} 43. Rxe8 {[%emt 0:00:26]} Kxe8 {[%emt 0:00:16]} 44. Rxb5 {[%emt 0:00:33]} Nd2+ {[%emt 0:00:47]} 45. Kc2 {[%emt 0:00:10]} Nc4 {[%emt 0:00:17]} 46. Ne3 {[%emt 0:00:53]} Re7 {[%emt 0:00:53]} 47. Nxc4 {[%emt 0:00:43]} Re2+ {[%emt 0:00:09]} 48. Kb3 {[%emt 0:00:11]} Rb2+ {[%emt 0:00:19]} 49. Nxb2 {[%emt 0:00:14]} axb2 {[%emt 0:00:05]} 50. Kxb2 {[%emt 0:00:03]} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.30"]
[White "Silvera, Pilar"]
[Black "Gaye, Gustavo"]
[Result "0-1"]
[ECO "B27"]
[WhiteElo "1356"]
[BlackElo "2001"]
[Annotator "NA RC"]
[PlyCount "60"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 24,60,-52,-67,32767,0,0,-32,26,-28,-34,-33,-41,-195,-199,32767,32767,32767,32767,32767,32767,-209,-197,-196,-168,-180,-175,-210,-206,-242,-231,-230,-207,-204,-201,-193,-204,-187,-204]} 1. e4 {[%emt 0:11:01]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:41]} g6 {[%emt 0:00:00]} 3. d4 {[%emt 0:00:22]} cxd4 {[%emt 0:00:00]} 4. Nxd4 {[%emt 0:00:08]} Nc6 {[%emt 0:00:08]} 5. Be3 {[%emt 0:00:08]} Nf6 {[%emt 0:00:18]} 6. Nc3 {[%emt 0:00:08]} Bg7 {[%emt 0:00:07]} 7. f3 {[%emt 0:00:09]} O-O {[%emt 0:00:07]} 8. Qd2 {[%emt 0:01:34]} d5 {[%emt 0:04:30]} 9. O-O-O {[%emt 0:00:09]} dxe4 {[%emt 0:00:57]} 10. Nxc6 {[%emt 0:00:18]} Qxd2+ {[%emt 0:00:43]} 11. Rxd2 {[%emt 0:00:09]} bxc6 {[%emt 0:00:08]} 12. Nxe4 {[%emt 0:00:09]} Nd5 {[%emt 0:00:24] B34: Sicilian: Accelerated Dragon with 5 Nc3: sidelines.} 13. Bc5 {[%emt 0:00:32]} Re8 {[%emt 0:19:48] [#]} 14. Rd1 $146 {[%emt 0:06:08]} ({Predecessor:} 14. c4 Nc7 15. Be3 a5 16. Be2 Ne6 17. h4 f5 18. Ng5 f4 19. Bf2 Nxg5 20. hxg5 {½-½ (87) Khatibi,M (2172)-Mahjoob,M (2381) Rasht 2015}) 14... Rb8 {[%emt 0:04:33]} 15. c3 {[%emt 0:28:14]} Bf5 {[%emt 0:04:25]} (15... Be6 $15) 16. g3 {[%emt 0:14:42]} ({White should play} 16. g4 Bxe4 17. fxe4 Bh6+ 18. Kc2) 16... Bh6+ {[%emt 0:03:49]} 17. Kc2 {[%emt 0:00:08]} Be3 {[%emt 0:14:14]} 18. Bd3 $2 {[%emt 0:04:42]} (18. Ba3 $15) 18... Bxc5 {[%emt 0:00:39]} 19. Nxc5 {[%emt 0:01:37]} Ne3+ {[%emt 0:00:05]} 20. Kc1 {[%emt 0:00:06]} Nxd1 {[%emt 0:00:24]} 21. Rxd1 {[%emt 0:00:06]} Bxd3 {[%emt 0:00:22]} 22. Rxd3 {[%emt 0:00:09]} Red8 {[%emt 0:01:17]} 23. Re3 {[%emt 0:02:15]} e6 {[%emt 0:00:29]} 24. f4 {[%emt 0:03:19]} Rd5 {[%emt 0:01:21]} 25. Nb3 {[%emt 0:00:15]} Rbd8 {[%emt 0:00:39]} 26. Re1 {[%emt 0:00:42]} Kg7 {[%emt 0:01:50]} 27. Kc2 {[%emt 0:00:35]} Kf6 {[%emt 0:01:20]} 28. Re2 {[%emt 0:04:46]} h5 {[%emt 0:01:06]} 29. Nd4 {[%emt 0:01:10]} Rc8 {[%emt 0:04:07]} 30. Nf3 {[%emt 0:00:32]} Rc7 $19 {[%emt 0:04:28]} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.31"]
[White "Aguilera, Angel"]
[Black "Montanu, Dan-Vladimir"]
[Result "0-1"]
[ECO "A06"]
[WhiteElo "1196"]
[BlackElo "1983"]
[Annotator "NA RC"]
[PlyCount "94"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 8,83,-4,32767,32767,32767,32767,32767,32767,32767,32767,32767,-33,-58,-66,-70,-53,-83,-66,-54,-48,-71,32767,32767,32767,32767,-58,-72,-72,-69,-62,-62,-59,-59,-64,-64,-59,-56,-57,-67,-64,-70,-71,-76,-78,-72,-67,-87,-56,-50,0,-139,-124,-141,-75,-88,-92,-99,-70,-42,-39,-43,-7,-67,-23,-59,-72,-109,-43,-53,0,-172,-83,-367,-468,-483,-544,-458]} 1. Nf3 {[%emt 0:00:00]} d5 {[%emt 0:00:00]} 2. g3 {[%emt 0:00:14]} Nf6 {[%emt 0:00:18]} 3. c3 {[%emt 0:00:39]} c5 {[%emt 0:00:32]} 4. Bg2 {[%emt 0:00:13]} Nc6 {[%emt 0:00:50]} 5. O-O {[%emt 0:01:06]} e5 {[%emt 0:01:15]} 6. d3 {[%emt 0:00:44] A07: Réti Opening: New York and Capablanca Systems.} h6 {[%emt 0:00:54] [#]} 7. b3 $146 {[%emt 0:01:22]} ({Predecessor:} 7. a3 Be6 8. b4 e4 9. Nfd2 exd3 10. exd3 Bd6 11. Nb3 c4 12. dxc4 dxc4 13. Nd4 Nxd4 14. cxd4 O-O 15. Bxb7 Rb8 16. Bg2 a5 17. bxa5 Qxa5 18. Bd2 Qb6 19. Nc3 Qxd4 20. Bf4 {½-½ (20) Telljohann,S (2391)-Khenkin,I (2675) Frankfurt 2012}) 7... Bd6 {[%emt 0:02:04]} 8. Nbd2 {[%emt 0:01:00]} Be6 {[%emt 0:03:26]} 9. Bb2 {[%emt 0:04:38]} O-O {[%emt 0:04:27]} 10. Qc2 {[%emt 0:01:14]} Rc8 {[%emt 0:00:32]} 11. Rfe1 {[%emt 0:00:45]} Qd7 {[%emt 0:00:58]} 12. Rad1 {[%emt 0:01:20]} b5 {[%emt 0:04:01]} 13. a3 {[%emt 0:01:56]} a5 {[%emt 0:00:22]} 14. e4 {[%emt 0:00:45]} d4 {[%emt 0:01:51]} 15. c4 {[%emt 0:01:56]} bxc4 {[%emt 0:00:35]} 16. bxc4 {[%emt 0:01:00]} Qa7 {[%emt 0:08:06]} 17. Rb1 {[%emt 0:05:08]} a4 {[%emt 0:01:50]} 18. Ba1 {[%emt 0:00:43]} Rb8 {[%emt 0:02:56]} 19. Rxb8 {[%emt 0:05:16]} Rxb8 {[%emt 0:00:18]} 20. Rb1 {[%emt 0:00:23]} Bd7 {[%emt 0:01:10]} 21. Rxb8+ {[%emt 0:01:06]} Bxb8 {[%emt 0:00:47]} 22. Bb2 {[%emt 0:03:29]} Bc7 {[%emt 0:03:54]} 23. h3 {[%emt 0:03:22]} Ne8 {[%emt 0:08:54]} 24. Kh2 {[%emt 0:06:18]} Qb6 {[%emt 0:01:30]} 25. Ba1 {[%emt 0:01:07]} Na5 {[%emt 0:02:43]} 26. Bb2 {[%emt 0:07:44]} f6 {[%emt 0:06:10]} 27. h4 {[%emt 0:00:26]} Nd6 {[%emt 0:00:42]} 28. Bh3 {[%emt 0:00:43]} Qc6 {[%emt 0:01:10]} (28... Be8 $15) 29. g4 {[%emt 0:04:43]} (29. Bxd7 $11 {remains equal.} Qxd7 30. Kg2) 29... Nf7 {[%emt 0:01:55]} 30. h5 {[%emt 0:02:24]} Nb7 {[%emt 0:03:51]} 31. Nh4 {[%emt 0:00:41]} Nbd8 {[%emt 0:01:45]} 32. Ng6 {[%emt 0:00:30]} Bd6 {[%emt 0:01:21]} 33. Nf3 {[%emt 0:00:39]} Ne6 {[%emt 0:00:37]} 34. Nfh4 {[%emt 0:02:42]} Neg5 {[%emt 0:02:30]} 35. Qd1 {[%emt 0:03:06]} Qb6 {[%emt 0:03:17]} 36. Qe2 {[%emt 0:00:31]} Qb3 {[%emt 0:00:35]} 37. Kg3 {[%emt 0:02:47]} (37. Nf5 $11) 37... Bc7 {[%emt 0:08:47]} 38. Ne7+ {[%emt 0:01:22]} Kh7 {[%emt 0:00:41]} 39. Nd5 $2 {[%emt 0:10:27]} (39. Nhg6 $11 {and White has nothing to worry.} Qb8 40. Nd5) 39... Ba5 {[%emt 0:00:59]} (39... Be6 $19 {and Black stays clearly on top.} 40. Nxc7 Bxc4) 40. Nf3 $2 {[%emt 0:05:37]} (40. Ng6 $15) 40... Bc3 {[%emt 0:04:28]} 41. Bc1 {[%emt 0:01:22]} Nxh3 {[%emt 0:03:43]} 42. Kxh3 $19 {[%emt 0:01:13]} Qb1 {[%emt 0:02:00]} 43. Qd1 {[%emt 0:01:37]} Bb2 {[%emt 0:00:37]} 44. Nd2 {[%emt 0:01:48]} Qxc1 {[%emt 0:00:22]} 45. Qxc1 {[%emt 0:00:27]} Bxc1 {[%emt 0:00:07]} 46. Nb1 {[%emt 0:00:47]} Ng5+ {[%emt 0:00:43]} 47. Kg2 {[%emt 0:00:25]} Bxg4 {[%emt 0:00:28]} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.09"]
[Round "3.32"]
[White "Rodriguez Farias, Eduardo"]
[Black "Rodriguez Buela, Martin"]
[Result "1-0"]
[ECO "C02"]
[WhiteElo "1963"]
[Annotator "NA RC"]
[PlyCount "45"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 26,45,59,32767,32767,40,27,14,66,0,101,32767,106,115,117,110,107,108,120,116,114,16]} 1. e4 {[%emt 0:00:00]} e6 {[%emt 0:00:04]} 2. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:08]} 3. e5 {[%emt 0:00:00]} c5 {[%emt 0:00:22]} 4. c3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:19]} 5. Nf3 {[%emt 0:00:00]} Qb6 {[%emt 0:00:15]} 6. Bd3 {[%emt 0:00:08]} Bd7 {[%emt 0:00:45]} 7. O-O {[%emt 0:00:07]} cxd4 {[%emt 0:00:22]} 8. cxd4 {[%emt 0:00:02]} Nxd4 {[%emt 0:01:13]} 9. Nbd2 {[%emt 0:00:11]} Nxf3+ {[%emt 0:09:40] C02: French: Advance Variation.} 10. Nxf3 {[%emt 0:00:25]} Bc5 {[%emt 0:00:16]} 11. b4 {[%emt 0:00:37]} Be7 {[%emt 0:03:19]} 12. Be3 {[%emt 0:00:10]} Qd8 {[%emt 0:00:18]} 13. Qd2 {[%emt 0:02:23]} f6 {[%emt 0:02:21]} 14. Rac1 {[%emt 0:00:40]} fxe5 {[%emt 0:00:23]} 15. Nxe5 {[%emt 0:00:18]} Nf6 {[%emt 0:00:23] [#]} 16. Qe2 $146 {[%emt 0:03:15]} ({Predecessor:} 16. Bd4 O-O 17. Qe3 Bd6 18. a3 Qe8 19. Rfe1 Qh5 20. h3 Rae8 21. Bc5 Bxc5 22. Rxc5 {1-0 (41) Pisk,P (2390)-Zpevakova,J (2016) Pardubice 2014}) 16... a6 {[%emt 0:03:09]} 17. g4 {[%emt 0:01:28]} (17. Bf4 $5 {[%cal Re5d7]} Bd6 18. b5 $14) 17... O-O {[%emt 0:04:56]} (17... Bd6 $1 $11 {remains equal.} 18. Bc5 (18. Nxd7 Nxd7 19. Bc5 Be5 $11) 18... Bxc5 19. Rxc5 O-O) 18. g5 {[%emt 0:00:38]} Ne4 {[%emt 0:07:36]} 19. Bxe4 $1 {[%emt 0:02:16]} dxe4 {[%emt 0:03:54]} 20. Rfd1 {[%emt 0:00:28]} Bb5 {[%emt 0:00:42]} 21. Qg4 {[%emt 0:00:29]} Qe8 {[%emt 0:00:59]} 22. Qxe6+ {[%emt 0:00:19]} ({Much worse is} 22. Qxe4 $6 Qh5 $11) 22... Kh8 {[%emt 0:00:33] [#]} 23. g6 $11 {[%emt 0:06:57]} (23. Rc7 $1 $16 {[%cal Rc7e7]} Qh5 24. Rd5 Bxg5 25. Nf7+ {[%mdl 64] Discovered Attack} Rxf7 26. Rxf7 (26. Qxf7 $2 {perishes.} Qg4+ 27. Kh1 Bxe3 $19)) 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.1"]
[White "Hernandez Guerrero, Gilberto"]
[Black "Diaz Hollemaert, Nahuel"]
[Result "1-0"]
[ECO "C24"]
[WhiteElo "2557"]
[BlackElo "2450"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,55,12,15,23,12,26,46,9,15,0,0,-12,-10,-12,14,-12,10,-15,0,0,47,42,46,51,55,44,84,64,118,97,116,122,113,118,179,181,155,99,112,104,129,20,17,21,179,180,184,173]} 1. e4 e5 2. Bc4 Nf6 3. d3 c6 4. Nf3 d5 5. Bb3 Bb4+ 6. Bd2 {C24: Bishop's Opening: 2...Nf6.} Bxd2+ 7. Qxd2 $1 {[%mdl 4] is currently scoring better than 7.Nbxd2.} Qc7 {[#]} 8. exd5 $146 {White is slightly better.} (8. Qg5 $5 {[%cal Rg5g7]} O-O 9. Qxe5 Qxe5 10. Nxe5 $11) ({Predecessor:} 8. Qg5 O-O 9. Qxe5 Qxe5 10. Nxe5 dxe4 11. dxe4 Nxe4 12. Nd2 Nxd2 13. Kxd2 Nd7 14. Nd3 {½-½ (30) Ponomariov,R (2686)-Meier,G (2638) Linares 2018}) 8... cxd5 9. Nc3 d4 10. Nd5 Nxd5 11. Bxd5 Qd6 12. Bb3 (12. c4 {is interesting.} f6 13. O-O Nc6 14. Rfe1 Ne7 15. Be4) 12... O-O (12... h6 {feels hotter.} 13. O-O Nc6 14. h3 O-O 15. Rfe1 Re8) 13. O-O Be6 14. Bxe6 fxe6 15. Rae1 $36 {[%mdl 2048] White is more active.} Nc6 16. Re4 Rf5 17. Qe2 Rc8 18. a3 h5 ({Better is} 18... Rcf8 $14) 19. h3 Rcf8 20. Nh4 Rg5 21. Re1 Qc7 (21... a5 $16 {was worth a try.}) 22. b4 a6 {[#]} 23. Qd2 (23. f4 $142 $1 {[%cal Rf4g5][%mdl 512]} exf4 24. Rxe6) 23... Qd8 $16 24. Kh1 Qf6 {[#]} 25. a4 (25. f4 $1 $16 {[%mdl 512]} exf4 26. Rxe6) 25... Ne7 $11 {[#]} 26. f4 $1 {[%mdl 512]} Rg3 $2 (26... Rg4 $1 $11 27. Nf3 (27. hxg4 Qxh4+ 28. Kg1 hxg4 $11) 27... Rxf4) (26... exf4 27. Rxe6) 27. fxe5 $18 Qf2 {[#]} 28. R1e2 $1 {Accuracy: White = 77%, Black = 54%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.2"]
[White "Hoffman, Alejandro"]
[Black "Tristan, Leonardo"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "2472"]
[BlackElo "2533"]
[Annotator "TA"]
[PlyCount "30"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,30,25,39,12,39,28,36,52,41]} 1. d4 d6 2. e4 Nf6 3. Nc3 g6 4. g3 Bg7 5. Bg2 O-O 6. Nge2 e5 7. h3 Nc6 8. Be3 exd4 9. Nxd4 Re8 10. O-O Bd7 11. a4 a6 12. Re1 Nb4 13. Nde2 {[#] B07: Pirc Defence: Miscellaneous Systems.} Qc8 $146 ({Predecessor:} 13... a5 14. Nf4 Ra6 15. Qd2 Qc8 16. Kh2 Rc6 17. Nfd5 Nbxd5 18. exd5 Rc4 19. Nb5 Re5 20. Bg5 Rxe1 21. Rxe1 Rxa4 {0-1 (34) Mate Adan,C (2262)-Movsziszian,K (2505) Vila Real 2001}) 14. Nf4 Bc6 {[%cal Rf6e4]} 15. Qd2 a5 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.3"]
[White "Liascovich, Lucas"]
[Black "Vazquez, Guillermo"]
[Result "0-1"]
[ECO "D05"]
[WhiteElo "2425"]
[BlackElo "2524"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,62,18,16,13,-8,0,-11,-16,-41,-4,-18,-32,-22,-29,-65,-61,-71,-77,-84,-79,-58,-20,-26,-33,-34,-13,-91,-56,-64,-64,-69,-62,-68,-75,-62,-33,-119,-116,-149,-152,-225,-230,-300,-312,-528,-522,-29996,-29997]} 1. d4 Nf6 2. Nf3 e6 3. e3 d5 4. Bd3 c5 5. b3 Nc6 6. Bb2 Bd6 7. O-O O-O 8. Nbd2 b6 9. a3 Bb7 {D05: Colle System with ...e6.} 10. Ne5 {10.Qe2 is the hot move.} Rc8 11. f4 Ne7 {The position is equal.} 12. Qf3 b5 {Strongly threatening ...c4.} 13. dxc5 Bxc5 14. b4 Bb6 $1 15. Kh1 {[#]} Ne4 $1 {[%mdl 512]} 16. Nxe4 dxe4 17. Bxe4 Bxe4 18. Qxe4 Qd5 19. Qxd5 Nxd5 20. Nd7 $1 {[%cal Rd7f8] [#]} Nxe3 $146 ({Predecessor:} 20... Rfd8 21. Nxb6 axb6 22. Bd4 Rxc2 23. h3 f5 24. a4 bxa4 25. Rxa4 Rd7 26. b5 Re2 {½-½ (69) Kosic,D (2516)-Dinger,F (2333) Budapest 2008}) 21. Nxb6 (21. Rf3 $11 {remains equal.} Rxc2 22. Nxf8 Kxf8 23. Be5) 21... axb6 22. Rf3 Nxc2 23. Rd1 Rfd8 24. Rfd3 $1 {[%cal Rd3d8]} Rxd3 25. Rxd3 $15 {[%mdl 4096] Endgame KRB-KRN} h5 26. h3 (26. Kg1 $15) 26... Rc4 27. f5 exf5 28. Rd5 (28. Rg3 $17) 28... Ne3 $19 29. Rxb5 f4 {Threatens to win with ...Rc2!} 30. Rxh5 $2 {[#]} (30. Kg1) 30... Rc2 $1 {[%csl LRb2,LRg2][%mdl 576] Double Attack} 31. Bd4 Rc1+ {Accuracy: White = 35%, Black = 77%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.4"]
[White "Acosta, Pablo Ismael"]
[Black "Rodriguez Vila, Andres"]
[Result "1-0"]
[ECO "A20"]
[WhiteElo "2416"]
[BlackElo "2492"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,77,0,0,13,30,21,6,9,18,10,28,23,32,31,9,16,29,19,39,0,0,0,19,28,20,14,21,24,95,87,88,89,97,88,92,87,85,85,88,92,128,81,125,120,233,228,275,266,268,241,407,248,377,363,720,720,716,703,700,688,1373,1324,6628,894,5425,1993,29973,29978,29978,29979]} 1. c4 e5 2. g3 Nf6 3. Bg2 h6 4. Nc3 Bb4 5. e4 O-O 6. Nge2 {[#] A20: English Opening: 1...e5.} Re8 $146 ({Predecessor:} 6... d6 7. a3 Bxc3 8. Nxc3 Be6 9. b3 Qd7 10. O-O Nc6 11. Ne2 Bh3 12. f3 Nd4 13. Bxh3 Qxh3 14. Nxd4 exd4 {1-0 (28) Martins,D (2384)-Hanley,C (2457) England 2018}) 7. O-O a5 8. h3 {The position is equal.} d6 9. d3 c6 10. Be3 Na6 11. d4 exd4 12. Bxd4 Nc5 {[%cal Rf6e4]} 13. Qc2 Ne6 14. Bxf6 Qxf6 15. Rad1 Nc5 16. a3 Bxc3 $1 17. Nxc3 a4 18. f4 Be6 (18... Qe7 $11 {remains equal.}) 19. Rxd6 $16 {Strongly threatening Qf2.} Qe7 20. Rfd1 $1 $36 {[%mdl 2048] Keeping Black busy.} Bxc4 {[#] aiming for ...Bb3.} 21. Qf2 $1 {[%cal Rf2c5]} Bb3 {[#]} 22. R1d2 $1 ({Worse is} 22. Qxc5 Bxd1 23. e5 (23. Nxd1 $2 Rad8 $19) 23... Bb3 $17) 22... Ra5 23. e5 Be6 24. g4 Bc8 25. Rd1 Rf8 26. Qd4 h5 (26... Qc7 $16 {was called for.}) 27. Qb4 $18 ({Don't do} 27. gxh5 $6 Be6 $16) 27... Qc7 28. gxh5 Be6 29. Kh1 Rfa8 $2 (29... Re8 30. h6 g6) 30. Qd4 Bf5 (30... Re8 {is a better defense.} 31. Qf2 Bb3) 31. h6 Ne6 $2 (31... Qe7 32. Ne4 (32. hxg7 Qh4 $16) 32... Bxe4) 32. Qf2 g6 33. Rd7 Qc8 {[#]} 34. h7+ $1 {[%mdl 576] Deflection, Decoy} Kxh7 35. Rxf7+ Ng7 36. Qh4+ Kg8 37. Re7 Qf8 38. Ne4 Nh5 39. Nf6+ {Accuracy: White = 86%, Black = 50%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.5"]
[White "Lima, Darcy"]
[Black "Amura, Claudia"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "2526"]
[BlackElo "2245"]
[Annotator "TA"]
[PlyCount "115"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,115,12,14,23,16,9,20,-4,15,9,10,8,18,12,10,4,19,8,6,10,26,8,28,-14,0,0,0,-7,0,0,0,-18,-6,-11,-6,-16,0,0,8,10,15,16,14,29,32,9,15,18,16,-49,-14,-62,-73,-79,-72,-68,-52,-51,-60,-102,-49,-102,0,0,0,0,0,0,55,53,58,73,155,132,140,97,137,85,363,325,298,131,124,126,340,418,445,421,412,400,382,44,393,368,277,0,2386,1958,12841,12842,12837,12835,2996,5816,12838,7058,12833,1352]} 1. d4 d5 2. c4 e6 3. Nc3 a6 4. cxd5 exd5 5. Bf4 Nf6 6. e3 {D31: Queen's Gambit Declined: Semi-Slav without ...Nf6 (+ Marshall Gambit and Noteboom) and Exchange Variation lines without ...Nf6.} Bd6 7. Nge2 O-O {[#]} 8. g3 $146 {The position is equal.} ({Predecessor:} 8. h3 c6 9. Qc2 a5 10. Bxd6 Qxd6 11. Nf4 Re8 12. Be2 Nbd7 13. O-O Nf8 14. Na4 {0-1 (39) Rasmussen,A (2543)-Prusikin,M (2510) Germany 2018}) 8... Bg4 9. Bxd6 Qxd6 10. Bg2 Nbd7 11. O-O Bxe2 12. Qxe2 Rae8 13. Qc2 c6 14. Qb3 Qb8 15. Qb4 Ne4 16. a4 Ndf6 17. Ne2 Nd6 18. Nf4 Nfe4 19. Nd3 Re6 20. Nc5 Nxc5 21. dxc5 Ne4 22. Qd4 f5 23. b4 g5 24. b5 f4 25. bxc6 bxc6 26. f3 Nf6 27. Rab1 Qc7 28. exf4 gxf4 29. g4 (29. Bh3 $11 Re7 30. gxf4) 29... Nd7 30. Rb3 Rb8 31. Rfb1 Rxb3 32. Rxb3 Qe5 33. Qxe5 Rxe5 $15 {[%mdl 4096] Endgame KRB-KRN} 34. Rb4 Nxc5 (34... a5 $17 35. Rxf4 Nxc5) 35. Rxf4 (35. Bf1 $15) 35... Re1+ (35... a5 $1 $17 36. h4 h6) 36. Bf1 $11 Kg7 37. g5 a5 38. h4 Ra1 (38... Re7 $11) 39. Rf6 $14 Nb3 40. Kf2 $1 Rxa4 ({Black should play} 40... h5) 41. h5 $1 $16 Nd4 42. h6+ {[%mdl 1024] White has strong compensation.} Kg8 43. Bh3 (43. Bd3 $142 {aiming for g6.} Ra3 44. Ke3) 43... Ra3 $2 {[%mdl 8192]} (43... Rb4 $16) 44. Bg4 $1 $18 Rb3 {[#] With the idea ...a4.} 45. Bh5 (45. Rd6 $1 $18) 45... Rb7 $16 46. Ke3 Nc2+ $2 (46... c5 $16 {might work better.}) 47. Kd3 $18 Nb4+ 48. Kd4 a4 {And now ...a3 would win.} 49. Bg4 {Be6+ would kill now.} Rb8 {White must now prevent ...a3.} 50. Be6+ Kh8 51. Rf7 {Strongly threatening Bf5.} Nc2+ 52. Kd3 $2 (52. Kc5 $18) 52... Nb4+ $2 {[%mdl 8192]} (52... Ne1+ $11 53. Ke2 Nc2) 53. Kd2 {White is clearly winning.} a3 54. Bf5 Kg8 55. Rg7+ Kf8 56. Rxh7 {White wants to mate with Rd7.} a2 {[#]} 57. Ra7 $1 {Threatening mate with g6.} Rb7 58. h7 {Accuracy: White = 79%, Black = 68%.} (58. Ra8+ $142 Ke7 59. h7) 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.6"]
[White "Hungaski, Robert"]
[Black "Carbone, Diego"]
[Result "1-0"]
[ECO "D70"]
[WhiteElo "2504"]
[BlackElo "2239"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,51,29,40,39,19,54,46,50,46,75,78,95,75,92,27,39,32,179,163,136,150,105,158,135,151,106,38,40,20,756,451,760,742,741,701,906,909]} 1. d4 Nf6 2. c4 g6 3. f3 d5 4. cxd5 Nxd5 5. e4 Nb6 6. Nc3 Bg7 7. Be3 O-O 8. Qd2 Nc6 9. O-O-O f5 {D70: Grünfeld: Unusual White 3rd moves (met by ...d5).} 10. h4 e5 {[%cal Re5d4]} 11. d5 $1 {[%cal Rd5c6]} Nd4 $1 {White is slightly better.} 12. h5 $1 c6 {[%cal Rc6d5]} 13. hxg6 hxg6 {[#]} 14. exf5 $146 ({Predecessor:} 14. Bh6 f4 15. Nge2 Bxh6 16. Rxh6 c5 17. b3 Bd7 18. Nxd4 cxd4 19. Nb5 Kg7 20. Rh1 Bxb5 21. Bxb5 {1-0 (41) Def,P (1869)-Reppert,V (1928) LSS email 2009}) 14... Bxf5 15. g4 ({White should play} 15. dxc6 $16 bxc6 16. g4) 15... Bc2 $11 16. Qh2 Kf7 (16... Bxd1 $14 17. Qh7+ Kf7) 17. Bxd4 $18 exd4 18. Kxc2 {[#] dxc6 is the strong threat.} dxc3 19. dxc6 Nd5 {aiming for ...Ne3+.} 20. Bc4 $36 {[%mdl 2048] Keeping Black busy.} bxc6 {[#]} 21. Ne2 ({White should try} 21. Nh3 $1 $16) 21... cxb2 $14 22. Kb1 {Threatens to win with Nf4.} Rb8 $2 {[%mdl 8192]} (22... Rh8 $11 23. Qf4+ Qf6) 23. Nf4 {[%cal Rf4d5] White is clearly winning.} Qd6 (23... Rh8 $142 24. Qc2 Qg5) 24. Nxd5 $18 {[%mdl 64] Discovered Attack} Qxh2 25. Nc7+ ({Less strong is} 25. Rxh2 cxd5 26. Rxd5 (26. Bxd5+ Kf6 $16) 26... Rfe8 $16) 25... Ke7 26. Rxh2 {Accuracy: White = 71%, Black = 31%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.7"]
[White "Larrea, Manuel"]
[Black "Roselli Mailhe, Bernardo"]
[Result "0-1"]
[ECO "C17"]
[WhiteElo "2243"]
[BlackElo "2433"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,60,106,93,104,95,0,23,43,54,50,56,61,139,115,134,0,0,-56,-28,-39,-37,-34,-30,-34,-43,-42,-29,-34,-24,-181,-171,-174,-187,-228,-198,-487,-482,-468,-463,-492,-468,-1022,-993,-5127,-4998,-5497,-5485]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Ba5 6. b4 cxd4 7. Qg4 Ne7 8. bxa5 dxc3 9. Qxg7 {C18: French: 3 Nc3 Bb4: Main line: 7 h4 and 7 Qg4.} Rg8 10. Qh6 (10. Qxh7 $16 Nbc6 11. Nf3) 10... Qc7 11. Nf3 {White has an edge.} Nbc6 12. Bf4 {[#]} Bd7 $146 ({Predecessor:} 12... Qxa5 13. Bg3 Bd7 14. Bd3 O-O-O 15. O-O Ng6 16. Qxh7 Rdf8 17. Qh6 Nce7 18. Qe3 Kb8 {1-0 (69) Rumjantsev,J (2201)-Bivol,A (2017) Dmitrov 2010}) 13. Bd3 Rxg2 {[#]} (13... Qxa5 $14 14. O-O (14. Qxh7 Qa4 $11) 14... O-O-O) 14. Bg3 $1 $16 O-O-O ({Don't blunder} 14... Nxa5 $2 15. Kf1 $18) 15. Qh3 {[#]} (15. Kf1 $16 Rxg3 16. hxg3) 15... Rxg3 $1 $11 {[%mdl 512]} 16. Qxg3 (16. hxg3 $11 Ng6 17. a6) (16. fxg3 Nxe5) 16... Ng6 17. a6 b6 {[%cal Rc6e5]} 18. Bxg6 hxg6 19. O-O Kb8 20. Rfe1 Bc8 21. Qf4 Bxa6 22. Ng5 $2 (22. Rad1 $11 {and White stays safe.}) 22... Rd7 $19 23. Nf3 d4 24. Rad1 {[%cal Rf3d4]} Qd8 25. Ng5 $2 (25. h3 {was worth a try.}) 25... d3 {Black is clearly winning.} 26. cxd3 c2 27. Rd2 Rd4 28. Ne4 (28. Qg3 $142 Rxd3 29. Rxd3 Bxd3 30. Kg2) 28... Bxd3 29. Rxd3 Rxd3 30. Nd6 {[#]} Rd1 $1 {Accuracy: White = 45%, Black = 85%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.8"]
[White "Munoz Perez, Rolando"]
[Black "De Dovitiis, Alejo"]
[Result "1/2-1/2"]
[ECO "E16"]
[WhiteElo "2130"]
[BlackElo "2314"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,72,9,11,15,8,11,13,22,0,10,0,23,-17,-12,-15,36,36,47,0,0,0,0,0,0,-7,0,-2,22,0,0,0,0,0,0,0,21,0,21,0,21,12,24,24,24,12,51,51,51,0,0,0,0,0,0]} 1. d4 e6 2. Nf3 Nf6 3. c4 Bb4+ 4. Bd2 Qe7 5. Nc3 O-O 6. g3 Bxc3 7. Bxc3 Ne4 8. Rc1 b6 9. Bg2 Bb7 10. O-O Nxc3 11. Rxc3 d6 {E16: Queen's Indian: 4 g3 Bb7 5 Bg2 Bb4+.} 12. d5 e5 13. e4 Nd7 14. Ne1 a5 15. f4 {[#]} Nc5 $146 ({Predecessor:} 15... Ba6 16. Nf3 b5 17. cxb5 Bxb5 18. Re1 Ra7 19. Qc2 exf4 20. Nd4 Rb7 21. Rxc7 Bd3 22. Rxd7 Qxd7 23. Qxd3 {1-0 (33) Halasz,T (2373)-Pfleger,S Recklinghausen 2000}) 16. Nd3 Nxd3 17. Qxd3 Bc8 (17... exf4 $1 $11 18. Rxf4 (18. gxf4 f5 $11) 18... f6) 18. f5 $14 f6 19. a4 Bd7 20. b3 Kf7 21. Qe2 Rh8 22. Qh5+ Kf8 23. g4 Qf7 24. Qh4 h6 25. Qf2 Ke7 26. Rg3 Rag8 27. h4 Kd8 28. Qe3 Qe7 29. Kf2 Kc8 30. Ke1 Kb7 31. Bf3 g6 {White should prevent ...gxf5.} 32. Rfg1 g5 33. Rh3 Be8 34. Rgh1 (34. Kd1 $14) 34... h5 $11 {The position is equal.} 35. hxg5 fxg5 36. Qe2 {[%cal Rg4h5]} h4 {Accuracy: White = 88%, Black = 92%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.9"]
[White "Menna Barreto, Felipe Kubiaki"]
[Black "Siddeley, Hugh"]
[Result "1/2-1/2"]
[ECO "A28"]
[WhiteElo "2395"]
[BlackElo "1974"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,90,22,33,16,16,21,38,20,21,16,29,0,0,-18,-11,-11,-7,-20,-20,-20,-20,-20,-18,-24,-18,-33,0,-33,-34,-49,-29,-55,-63,-120,-82,-73,-67,-165,-165,-165,-165,-165,-165,-165,-165,-165,-162,-152,-162,-160,-160,-160,-58,-50,-49,-56,-25,-24,-28,-152,-135,-135,-135,-158,-135,-135,-135,-135,-135,-135,-135,-135,-135,-135,-135,-135,-135]} 1. c4 Nf6 2. Nc3 e5 3. Nf3 Nc6 4. e4 Bb4 5. d3 d6 6. Be2 h6 7. O-O Bxc3 8. bxc3 O-O 9. Ne1 {A28: English Opening: Four Knights Variation.} Nh7 10. Rb1 {[#]} b6 $146 ({Predecessor:} 10... Rb8 11. Nc2 f5 12. exf5 Bxf5 13. Ne3 Bg6 14. Bf3 Nf6 15. Nd5 Kh8 16. Nxf6 Qxf6 {0-1 (47) Vuelban,V (2304)-Plischki,S (2347) Marianske Lazne 2017}) 11. Nc2 {White is slightly better.} Ne7 12. f4 f5 13. fxe5 dxe5 14. exf5 Bxf5 15. Ne3 Bg6 16. c5 Rxf1+ 17. Bxf1 Nf6 18. Ng4 Nxg4 19. Qxg4 Qd5 ({Worse is} 19... Bxd3 20. Bxh6 $1 {[%mdl 512]} Bg6 21. Bc4+ Kh8 22. Rd1 $16) 20. Be3 Rd8 21. c4 Qf7 22. Re1 Bxd3 23. cxb6 axb6 24. Bxh6 (24. c5 $15) 24... Rd4 25. Qg3 Nf5 $36 {[%mdl 2048] Black fights for an advantage.} ({Of course not} 25... Bxc4 26. Qxe5 Nf5 27. Bxg7 $11) 26. Qxe5 (26. Qh3 $15 Bxc4 27. Bc1) 26... gxh6 $19 27. Bxd3 Rxd3 28. Rf1 {[#]} Ne3 $1 {[%csl Ge3][%cal Rf7f1][%mdl 576] Double Attack, Discovered Attack} 29. Rxf7 {[%csl Gf7][%cal Re5g7]} Rd1+ 30. Kf2 {[%csl Gf7][%cal Re5g7]} Ng4+ {[%mdl 64] Double Attack} 31. Ke2 {[%csl Gf7][%cal Re5g7]} Nxe5 $17 {[%mdl 4096] Endgame KRN-KR} 32. Re7 Ng6 {aiming for ...Rg1.} 33. Rxc7 Rd6 ({Black should play} 33... Ra1 $17 34. Rc6 Rxa2+ 35. Kf1 Kg7 36. Rxb6 Nh4) 34. g3 Ne5 35. c5 Re6 {Threatens to win with ...bxc5.} 36. cxb6 Rxb6 {...Rb2+ is the strong threat.} 37. h4 (37. a4 $11) 37... Rb2+ {Black is clearly better.} 38. Ke3 Rxa2 39. Kf4 Nf7 40. g4 Rh2 41. Kg3 Rh1 42. Ra7 Kg7 43. Rc7 Rd1 44. Kf4 Rf1+ 45. Kg3 Rg1+ {Accuracy: White = 71%, Black = 81%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.10"]
[White "Brizzi, Milagros Tatiana"]
[Black "Delgado Ramirez, Neuris"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "2022"]
[BlackElo "2634"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,74,24,25,30,20,29,44,42,42,30,44,24,47,35,65,24,20,25,25,28,100,107,105,100,88,66,76,68,69,44,92,102,91,29,43,-27,-27,-85,-76,-214,-215,-1183,-210,-241,-225,-224,-211,-1033,-418,-750,-783,-687,-493,-482,-472,-29977,-29978]} 1. e4 c5 2. Nf3 d6 3. d3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O Nf6 7. c3 O-O 8. Re1 Bg4 9. h3 Bxf3 10. Bxf3 Nd7 11. Bg2 {A05: Réti Opening: 1 Nf3 Nf6.} b5 12. e5 {[#]} Qb6 $146 ({Predecessor:} 12... Qc7 13. exd6 exd6 14. Be3 Rfe8 15. Nd2 Rab8 16. a3 h6 17. Nf3 Nce5 18. Nxe5 Nxe5 19. f4 Nc6 20. Qf3 Ne7 21. Re2 Nf5 22. Bf2 Bf6 23. Rae1 Rxe2 24. Rxe2 b4 {½-½ (24) Masala,P (1867)-Baier,G (2086) IECG email 2007}) 13. exd6 {White is slightly better.} exd6 14. Bf4 Nde5 15. Na3 {[%cal Bb1a3,Ba3c2,Bc2e3,Be3d5][%mdl 32]} Rad8 16. Nc2 b4 17. Ne3 Qa6 18. Bf1 bxc3 19. bxc3 h6 (19... d5 $11 {remains equal.}) 20. Nd5 $1 $16 ({But not} 20. d4 $6 Qa3 $11) 20... Qa5 21. Bg2 Rb8 22. Qd2 Kh7 23. Rab1 Qa6 24. Red1 (24. Rbd1 {is interesting.} c4 25. d4 Nd3 26. Re2 Rb2 27. Qe3) 24... Rfd8 25. Rxb8 Rxb8 26. h4 (26. Qc2 $16) 26... Qa3 $11 27. Qc1 (27. Qe1 $14) 27... Qxa2 28. d4 (28. Qa1 $11 {keeps the balance.} Qxa1 29. Rxa1) 28... cxd4 {And now ...Ng4 would win.} 29. cxd4 {[#]} (29. Bxe5 $17 {was called for.} dxe5 30. h5) 29... Nxd4 $1 $19 {[%mdl 512] Hoping for ...Ne2+.} 30. Qc7 $2 {[#]} ({Avoid the trap} 30. Rxd4 $2 Rb1 $19) (30. Nc3 Qc4 31. Bf1) 30... Ne2+ $2 (30... Ng4 $1 {[%mdl 512]} 31. Be3 Rb1 32. Rxb1 Qxb1+ 33. Bf1 Ne2+ 34. Kg2 Qe4+ {[%mdl 64] Double Attack} 35. f3 Nxe3+ 36. Kf2 Ng4+ $1 {[%mdl 512]} 37. Ke1 Qb1+ 38. Kxe2 Qa2+ {[%mdl 64] Double Attack} 39. Ke1 Qf2+ {[%mdl 64] Double Attack} 40. Kd1 Qxf1+ 41. Kd2 Ne5) 31. Kh1 {[#] Strongly threatening Bxe5.} Nxf4 $1 {[%mdl 512]} 32. Qxb8 {[#]} (32. Nxf4 Rb1) 32... Nxd5 $1 $40 {[%mdl 128] Black goes for the king.} 33. Rxd5 $2 (33. Bxd5 Qxf2 34. h5 Qxg3 35. hxg6+ Nxg6 36. Qb3) 33... Qxf2 (33... Qa1+ $142 34. Kh2 Ng4+ {[%mdl 64] Double Attack} 35. Kh3 Qg1 36. Kxg4 Qxg2) 34. Rd1 (34. Rxe5 $142 Bxe5 35. Qb3) 34... Qxg3 {( -> ...Nf3)} 35. Qxd6 Qxh4+ 36. Kg1 a5 37. Rd5 (37. Qd2 $19) 37... Qe1+ {Accuracy: White = 41%, Black = 73%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.11"]
[White "Gaye, Gustavo"]
[Black "Garcia Palermo, Carlos"]
[Result "0-1"]
[ECO "B10"]
[WhiteElo "2001"]
[BlackElo "2434"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,74,0,-16,-12,0,-12,-12,-36,18,2,0,-2,46,13,16,24,31,21,10,28,33,18,46,22,68,83,55,64,64,43,23,28,36,33,42,-38,-34,-35,-8,-19,-8,-9,-8,-8,-8,-8,-8,-8,-16,-29,-6,-67,-68,-102,-102,-116,-119,-102,-111,-131,-115,-90,-51,-737,-611,-29966,-29960]} 1. e4 c6 2. Nc3 d5 3. Qf3 d4 4. Bc4 e6 5. Nce2 c5 6. d3 {B11: Caro-Kann: Two Knights Variation.} Nc6 7. Qg3 h5 8. f4 {[#]The position is equal.} Nf6 (8... b5 $1 $15 {[%mdl 512]} 9. Bb3 (9. Bxb5 $2 Qa5+ {[%mdl 64] Double Attack} 10. Nc3 Nge7 $19) 9... Nf6) 9. a3 {[#]} b5 $146 {[%mdl 512]} ({Predecessor:} 9... Be7 10. Nf3 h4 11. Qf2 Ng4 12. Qg1 b5 13. Ba2 Qb6 14. h3 Nf6 15. Qf2 Bb7 16. O-O Nd7 17. Ng5 Bxg5 18. fxg5 Nce5 19. b4 c4 20. Nxd4 cxd3 21. Be3 {1-0 (21) Plenca,J (2478)-Banzea,A (2304) Zadar 2017}) 10. Ba2 (10. Bxb5 Qa5+) 10... Bb7 (10... h4 $5 {[%cal Rh4g3]} 11. Qh3 g6 $11) 11. h3 {[#]} c4 $1 {[%mdl 512]} 12. Nf3 {[#]} (12. dxc4 Nxe4) 12... h4 $1 {[%mdl 512]} 13. Qf2 (13. Nxh4 Nxe4) 13... Bc5 14. Ng5 Bb6 15. O-O Ne7 16. Kh1 Nxe4 17. Nxe4 Bxe4 18. dxe4 {Rd1 is the strong threat.} d3 19. Be3 {Black must now prevent Rfd1.} (19. Qf3 {is interesting.} d2 20. Nc3 a6 21. b3 cxb3 22. Bxb3 dxc1=R 23. Raxc1 Qc7 24. f5) 19... dxe2 20. Qxe2 Bxe3 21. Qxe3 Qb6 22. Qxb6 (22. Qe1 $14) 22... axb6 $15 23. Rad1 Rd8 24. Rxd8+ Kxd8 $11 {[%mdl 4096] Endgame KRB-KRN} 25. a4 Rh5 26. axb5 Rxb5 27. Bxc4 Rxb2 28. Bb3 Nc6 29. f5 Ke7 30. fxe6 (30. Rf4 $1 $11) 30... fxe6 $15 31. e5 Nd4 $1 32. Rf4 Rb1+ $1 33. Kh2 {[#]} Nf5 $1 ({Don't play} 33... Nxb3 $6 34. cxb3 Rxb3 35. Rxh4 $11) 34. Bc4 Rb4 {Strongly threatening ...b5.} 35. Re4 g5 {Hoping for ...Ng3.} 36. g4 $2 {[%mdl 8192]} (36. Kg1 $15) 36... hxg3+ 37. Kg2 {[#]} Rxc4 $1 {[%mdl 512] Accuracy: White = 68%, Black = 77%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.12"]
[White "Montanu, Dan-Vladimir"]
[Black "Mussanti, Diego"]
[Result "0-1"]
[ECO "D05"]
[WhiteElo "1983"]
[BlackElo "2330"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,64,14,27,0,0,10,16,8,10,0,2,-1,0,0,0,-99,-105,-100,-71,-74,-54,-98,-116,-213,-206,-283,-287,-285,-280,-369,-364,-376,-316,-419,-418,-421,-427,-685,-672,-714,-700,-795,-796,-775,-767,-1167,-1020,-1751,-1657,-29988,-29989,-29990,-29990,-29992,-29993]} 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 c5 5. b3 Nc6 6. Bb2 Bd6 7. Nbd2 {D05: Colle System with ...e6.} b6 8. O-O Bb7 9. a3 {The position is equal.} O-O 10. Qe2 {is more profitable than 10.Ne5 at the moment.} Rc8 11. c4 cxd4 12. exd4 Ne7 {[#]} 13. c5 $146 (13. Rac1 $11 {remains equal.}) ({Predecessor:} 13. Ne5 Ng6 14. f4 Rc7 {½-½ (14) Valiente,C (2218)-Jodorcovsky Werjivker,P (2214) Asuncion 2016}) 13... bxc5 $17 14. dxc5 Rxc5 15. b4 Rc8 16. Bxf6 gxf6 17. Nh4 (17. Nd4 $17 {keeps fighting.}) 17... Ng6 $19 18. Qh5 f5 19. Ndf3 {[#] Ng5 is the strong threat.} Be7 (19... Nf4 20. Qh6 $19) 20. Nxg6 hxg6 ({Don't take} 20... fxg6 21. Qh3 $19) 21. Qh6 d4 22. Qh3 Bf6 23. Rfe1 Rc3 24. Ne5 (24. Rad1 $142) 24... Bxe5 25. Rxe5 {[#]} Be4 $1 {[%mdl 512]} 26. Rd1 (26. Bxe4 Rxh3) 26... Bxd3 27. Qh6 Qf6 28. f4 Rfc8 29. Ree1 Be4 30. Rd2 d3 {Black mates.} 31. h4 Rc2 32. Red1 Rxd2 {Accuracy: White = 39%, Black = 93%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.13"]
[White "Lopez Azambuja, Nicolas"]
[Black "Meskanen, Vesa"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2310"]
[BlackElo "2019"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,65,-5,-5,-4,-4,-10,-31,-27,-61,-43,-63,-61,-56,-18,-38,-37,-31,19,19,21,11,57,0,0,0,0,0,10,3,33,33,35,35,95,83,90,96,91,93,137,124,471,61,623,587,613,610]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Be3 O-O 9. Be2 Qa5 10. Qd2 Nc6 11. Rc1 cxd4 {D85: Exchange Grünfeld: Unusual White 7th moves and lines with 7 Nf3.} 12. cxd4 Qxd2+ 13. Kxd2 Rd8 {Black is slightly better.} 14. Rc4 {[#]} f5 $146 ({Predecessor:} 14... Bg4 15. d5 e6 16. Kc1 exd5 17. exd5 Ne5 18. Rc2 Bf5 19. Rc5 b6 20. Nxe5 Bxe5 {0-1 (61) Arjun,B (2281)-Danin,A (2575) Koge 2013}) 15. exf5 Bxf5 16. Rd1 Rd7 17. Ke1 Rad8 18. Rd2 e5 (18... Be4 {with more complications.} 19. Kf1 h6 20. Rc5 Kh8 21. Bb5 Bxf3 22. gxf3 Bxd4 23. Bxc6 Bxe3 24. Rxd7 Rxd7 25. fxe3 Rc7) 19. dxe5 Rxd2 20. Bxd2 Nxe5 21. Nxe5 (21. Rc7 $1 $14) 21... Bxe5 $11 22. f4 Bf6 23. Be3 a6 24. a4 Bd7 25. Rc7 Bc6 {[#]} 26. Bxa6 $1 {[%mdl 512]} Bc3+ ({Black should try} 26... Bd4 $14 27. Bxd4 (27. Bxb7 Bxb7 28. Bxd4 Rxd4 $16) 27... Rxd4) (26... bxa6 27. Rxc6) 27. Ke2 Ba5 28. Bc4+ $1 Kh8 29. Rf7 $1 Bxg2 {[#]} 30. f5 $1 {Hoping for Bh6.} gxf5 $2 {[%mdl 8192] [#]} (30... Bc3 $16) 31. Bg5 $2 (31. Rf8+ $1 $18 {[%mdl 512]} Kg7 (31... Rxf8 32. Bd4+) 32. Rxf5) 31... Re8+ $2 {[%mdl 8192] [#]} (31... Bd5 $14 32. Bxd5 Rxd5) 32. Kf2 $1 $18 {[%mdl 512] Threatening mate with Bf6+.} Bc3 33. Kxg2 {Accuracy: White = 74%, Black = 45%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.14"]
[White "Contin, Daniel"]
[Black "Soto, Nicolas"]
[Result "0-1"]
[ECO "A29"]
[WhiteElo "2267"]
[BlackElo "2002"]
[Annotator "TA"]
[PlyCount "110"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,110,0,0,0,14,0,11,0,0,-8,-12,-40,0,-44,83,102,95,-116,-107,-105,-110,-115,-104,-110,-97,-108,-97,-89,0,0,47,47,46,18,18,16,41,-228,-237,-225,-272,-248,-242,-240,-236,-237,-233,-240,-233,-225,-185,-174,-174,-295,-289,-478,-470,-397,-26,-434,-186,-175,-149,-787,-758,-874,-596,-686,-640,-993,-961,-1723,-1677,-2367,-2141,-29980,-29982,-29982,-29983,-29985,-29984,-29984,-29985,-29985,-29986,-29986,-29987,-29994,-29988,-29988,-29989]} 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 O-O 6. O-O e4 7. Ng5 Bxc3 8. bxc3 Re8 9. f3 e3 10. d3 d5 11. cxd5 Nxd5 12. Qb3 {A29: English Opening: Four Knights Variation with 4 g3.} Na5 13. Qa3 b6 14. f4 {Hoping for c4.The position is equal.} Bb7 {[#]} 15. Rb1 $146 ({Predecessor:} 15. c4 Ne7 16. Nf3 c5 17. Bb2 Nf5 18. Bc3 Nc6 19. Qb2 Rb8 20. Rab1 Ncd4 21. Nxd4 cxd4 {½-½ (28) Gelfand,B (2719)-Hammer,J (2629) Palma de Mallorca 2017}) 15... c5 16. Ne4 Qc7 17. f5 f6 (17... c4 $15 {stays ahead.}) 18. Nxc5 $16 bxc5 {[#]} 19. Rb5 $2 {[#]} (19. Rxb7 $1 $16 {[%mdl 512]} Nxb7 20. Bxd5+ Kh8 21. Rf3) 19... Nxc3 $1 $17 {[%mdl 512]} 20. Qxc3 Bxg2 21. Rf4 {[#]} Bh1 $1 {[%mdl 512]} 22. Qxc5 (22. Kxh1 Qc6+) 22... Qxc5 23. Rxc5 Nb7 24. Rc7 Bd5 (24... Rac8 $17 25. Rxc8 Rxc8 26. Bxe3 Bc6) 25. Rg4 $11 Bf7 {White must now prevent ...Nd6.} 26. Rxb7 Rac8 27. Bb2 Rc2 28. Kf1 Rec8 {aiming for ...Rc1+!} 29. Re4 $2 {[%mdl 8192]} (29. Bxf6 $14 {keeps the upper hand.} Bd5 30. Rbxg7+ Kf8 31. Re4 (31. Be7+ Ke8 $14) 31... Bxe4 32. dxe4 Rxa2 33. e5 (33. Rxh7 Rcc2 $14) 33... Rc1+ 34. Kg2 Rxe2+ 35. Kf3 Rf2+ 36. Kxe3 Rxf5 37. Rxh7 (37. Rxa7 h5 $14)) 29... Bd5 $19 {[%mdl 64] Double Attack} 30. Rb5 Bxe4 31. dxe4 {[%mdl 4096] Endgame KRR-KRB} Rd2 32. e5 fxe5 33. Bxe5 Rcc2 34. Kg2 Rxe2+ 35. Kf3 Re1 {And now ...Rf2+ would win.} 36. Rb8+ Kf7 {Strongly threatening ...Rf2+.} 37. Bd6 (37. Rb7+ $142 Ke8 38. Rb8+ Kd7 39. Rb7+ Ke8 40. Rb8+ Ke7 41. Rb7+ Kd8 42. Rb8+ Rc8 43. Rb4) 37... g5 {Threatens to win with ...e2.} 38. Kg4 $2 (38. Rb7+ {might work better.} Kf6 39. Bb4) 38... h6 39. Rb7+ Ke8 $2 (39... Kf6 $19 40. Be7+ Ke5 41. Rb5+ Kd4) 40. Kh5 $2 {[%mdl 8192]} (40. Re7+ $11 {and White stays safe.} Kd8 41. f6) 40... Rf1 (40... e2 $142 41. Re7+ Kd8) 41. Re7+ Kd8 42. Kxh6 $2 {[%mdl 8192]} (42. Rxe3 $17 Rxf5 43. h3) 42... e2 43. Bb4 Rxf5 44. Re3 Rxa2 45. Kg6 Rb5 46. Be7+ Kd7 47. Bxg5 Rb1 48. h4 e1=Q {Black mates.} 49. Rxe1 Rxe1 50. h5 Rg2 51. Bf4 {[#]} Rxg3+ $1 52. Bxg3 Rg1 53. h6 Rxg3+ 54. Kh7 {[#]} Rh3 $1 55. Kg7 a5 {Accuracy: White = 38%, Black = 64%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.15"]
[White "Muniz, Rafael"]
[Black "Durante, Aurelio"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2232"]
[BlackElo "1955"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,59,33,38,68,63,88,82,82,83,92,84,89,78,96,82,87,89,108,123,118,129,203,184,269,245,278,246,266,226,442,330,333,323,313,281,296,299,457,455,754,741,714,582,982,970,1346,1330,1217,984,5716,5343]} 1. e4 d5 2. exd5 Nf6 3. Bb5+ Bd7 4. Be2 Nxd5 5. d4 e6 6. Nf3 Nc6 {B01: Scandinavian Defence.} 7. O-O Be7 8. c4 Nf6 {White is better.} 9. Nc3 O-O {[#]} 10. h3 $146 ({Predecessor:} 10. a3 Qc8 11. b4 Rd8 12. Qb3 Ne8 13. Bb2 Bf6 14. Ne4 Nb8 15. Nxf6+ Nxf6 16. d5 {1-0 (35) Sarmiento Afonso,S (2095)-Sanchez Ramirez,G (1616) Vecindario 2019}) 10... h6 11. Be3 a5 12. Qd2 a4 13. Rad1 Bb4 14. Bd3 Re8 15. a3 Bf8 (15... Bxc3 $16 {was worth a try.} 16. Qxc3 (16. bxc3 e5 $14) 16... Ne7) 16. Bc2 $18 e5 (16... Bd6 {was necessary.} 17. Qd3 (17. Bxa4 Nxd4 18. Bxd4 Bxa4 $14) (17. Nxa4 Na5 $11) 17... Qc8) 17. dxe5 {[%mdl 64] [#] Overworked Piece} (17. Bxa4 exd4 18. Nxd4 Nxd4 $16) ({Weaker is} 17. Nxa4 exd4 18. Bxd4 (18. Nxd4 Ne5 $11) 18... Nxd4 $14) 17... Nxe5 18. Nxe5 Rxe5 19. Bd4 Raa5 $2 (19... Qe8 20. f4 (20. Bxe5 Qxe5 21. Rfe1 Qa5 $18) 20... Re6) 20. Bxe5 Rxe5 21. Bxa4 c6 22. Bc2 Qc8 {Black hopes to continue with ...Bxh3.} 23. Qd4 Rg5 (23... Qc7 {keeps fighting.} 24. Ne4 Nxe4) 24. Ne4 {White is clearly winning.} Rxg2+ (24... Nxe4 $142 25. Qxd7 Qxd7 26. Rxd7 Nc5) 25. Kxg2 Bxh3+ 26. Kh1 Ng4 27. Rg1 f5 {[#]} 28. Nf6+ $1 gxf6 29. f3 {[%mdl 64] Pin} Qe8 30. fxg4 {Accuracy: White = 95%, Black = 35%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.16"]
[White "Santiso, Daniel"]
[Black "Shtemler, Lavi"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "1900"]
[BlackElo "2199"]
[Annotator "TA"]
[PlyCount "103"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,103,52,34,40,46,26,35,27,41,35,62,54,78,73,85,78,102,84,100,72,153,52,52,52,56,60,56,41,53,37,46,20,18,16,31,15,15,0,0,0,0,0,0,-21,-14,-25,-25,-47,-9,-8,-2,-2,0,-28,0,0,0,0,0,0,0,-30,-30,-43,-31,-33,0,-43,-39,-93,-12,-82,-16,-65,-39,-82,-43,-95,-90,-159,-137,-216,-223,-427,-420,-387,-333,-407,-380,-341,-319,-306,-280,-531,-509,-457]} 1. d4 Nf6 2. Bf4 Nh5 3. Bg5 h6 4. Bh4 g5 5. e3 Nf6 6. Bg3 {A45: Trompowsky Attack.} d6 7. Bd3 Bg7 {[#]} 8. c3 $146 {White is slightly better.} ({Predecessor:} 8. Nd2 Nc6 9. c3 e5 10. Qc2 Qe7 11. O-O-O Be6 12. h4 g4 13. h5 O-O-O 14. Ne2 {0-1 (49) Ponomariov,R (2744)-Andreikin,D (2683) Moscow 2010}) 8... Nc6 9. Nf3 Bg4 10. Qb3 Qc8 11. Nbd2 Nh5 12. h3 Nxg3 13. fxg3 Bxf3 14. Nxf3 (14. gxf3 {keeps more tension.} Qe6 15. Be4 Nd8 16. Qxe6 fxe6 17. h4) 14... Qe6 (14... e6 $142) 15. e4 (15. Qxb7 $16 Qxe3+ {[%mdl 64] Double Attack} 16. Be2) 15... Qxb3 $14 16. axb3 a6 17. b4 O-O 18. O-O e6 19. g4 Rad8 20. b5 axb5 21. Bxb5 Ra8 22. Bxc6 bxc6 23. e5 Rfb8 24. Rxa8 Rxa8 $11 {[%mdl 4096] Endgame KRB-KRN} 25. Re1 Kf8 26. g3 Ke7 27. Re2 Ra5 28. h4 f6 {[%cal Rf6e5]} 29. hxg5 hxg5 {[%cal Rf6e5]} 30. exf6+ Kxf6 31. Nd2 Ra2 32. Kf2 Kf7 33. Nf3 Bf6 34. Ke3 Ra5 35. Kd3 c5 36. Rh2 Kg6 37. Re2 Kf7 38. Rh2 cxd4 39. Nxd4 ({White should play} 39. b4 $15 Ra1 40. Nxd4) 39... Bxd4 (39... c5 $17 40. Nf3 Ra4) 40. Kxd4 $15 {KR-KR} (40. cxd4 $11 {keeps the balance.} Ra2 41. Rh7+ Kf6 42. Rh6+ Ke7 43. Rh7+ Kd8 44. Kc3) 40... Rd5+ (40... c5+ $17 41. Ke3 d5) 41. Ke4 Re5+ 42. Kf3 Kg6 43. b4 (43. Rh8 $15) 43... Re1 $17 {Hoping for ...Rc1.} 44. Rc2 (44. Ra2 $142) 44... Kf6 $1 45. c4 {[#]} (45. Kf2 $17 {is a better defense.} Rb1 46. Ke3) 45... Ke5 $1 $19 46. c5 $2 (46. Kf2 {might work better.} Rb1 47. Re2+ Kf6 48. b5) 46... Rb1 47. Re2+ Kd5 48. Rd2+ Kc6 49. cxd6 cxd6 50. Rc2+ Kd5 51. Rd2+ $2 {[#]} (51. Rc7) 51... Ke5 $1 52. Re2+ {Accuracy: White = 58%, Black = 74%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.17"]
[White "Pustilnik, Iber"]
[Black "Dominguez, Facundo"]
[Result "0-1"]
[ECO "A62"]
[WhiteElo "1892"]
[BlackElo "2135"]
[Annotator "TA"]
[PlyCount "43"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,43,34,35,49,31,36,7,31,0,2,9,10,-33,0,-33,0,0,0,-80,-79,-133,-6,-67,-20,-234,-241,-722]} 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. g3 g6 7. Bg2 Bg7 8. Nf3 O-O 9. O-O a6 10. a4 Qc7 {A62: Modern Benoni: Fianchetto Variation without early ...Nbd7.} 11. Re1 Re8 12. e4 Bg4 {The position is equal.} 13. h3 Bxf3 $1 14. Bxf3 Nbd7 15. Bg2 Rab8 {[#]} 16. Qc2 $146 ({Predecessor:} 16. Bf1 Nf8 17. g4 N6d7 18. Qd2 f5 19. f3 Ne5 20. Qg2 fxe4 21. Rxe4 Nfd7 22. f4 {0-1 (55) Petrovic,P (2017)-Milajic,V (2121) Belgrade 2018}) 16... b5 17. axb5 axb5 18. Bf1 {[#]} (18. Bf4 $11 {remains equal.}) 18... c4 $1 $17 19. Ra6 {[#]} (19. f3 $142) 19... Bf8 (19... Nc5 $1 $17 {[%cal Rc5a6]} 20. Rc6 Qa5) 20. f3 (20. Bf4 $11) 20... Qb7 (20... Nc5 $5 {[%cal Rc5a6]} 21. Ra1 Nb3 $15) 21. Rc6 $2 (21. Ra1 $11 {and White is okay.}) 21... Ne5 $19 22. Bg5 $2 {Accuracy: White = 12%, Black = 50%.} (22. Kg2) 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.18"]
[White "Curi, Gabriel"]
[Black "Rodriguez Farias, Eduardo"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2132"]
[BlackElo "1963"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,55,21,-16,-23,-16,41,34,52,45,54,50,59,55,60,61,81,80,83,77,182,185,187,170,215,192,395,387,449,422,428,443,429,430,419,413,982,792,1057,1054]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 Nf6 6. e5 Nd5 7. Nc3 {[%cal Bb1c3,Bc3e4,Be4f6][%mdl 32]} Nc7 8. Bxc6 dxc6 9. Ne4 b6 10. Nf6+ Kf8 {B31: Sicilian: 2...Nc6 3 Bb5 g6.} 11. Ne4 Bf5 {[#]} ({Black should play} 11... Bg4 $11) 12. h3 $146 ({Predecessor:} 12. d3 Qd5 13. h3 Rd8 14. Ng3 Qd7 15. b3 h5 16. Bb2 h4 17. Nxf5 Qxf5 18. Re4 Qxe4 19. dxe4 Rxd1+ 20. Rxd1 {1-0 (47) Predojevic,B (2558)-Saric,I (2339) Bosnjaci 2006}) 12... Bxe4 {White is slightly better.} 13. Rxe4 Qd5 14. d3 Rd8 {[#] White must now prevent ...Qxe4!} 15. Qe2 Ne6 16. Be3 h6 17. a3 {[%cal Ba2a3,Ba3b4][%mdl 32]} Kg8 18. b4 f5 (18... Kh7 $16) 19. exf6 $1 $18 Bxf6 {[#]} 20. Re1 $1 cxb4 21. axb4 Nc7 $2 (21... c5 {keeps fighting.} 22. bxc5 bxc5 23. Bxh6 Nd4 24. Nxd4 cxd4) 22. Bd4 Rh7 23. Bxf6 exf6 24. Rd4 Qxd4 25. Nxd4 Rxd4 26. Qf3 Nd5 (26... Rf7 $142 27. Qxc6 Rd8) 27. c4 Nf4 28. Re8+ {Accuracy: White = 100%, Black = 35%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.19"]
[White "Guerrero, Alvaro"]
[Black "Moccero, Eduardo"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "2094"]
[BlackElo "1926"]
[Annotator "NA RC"]
[PlyCount "47"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 8,40,16,8,15,2,0,-6,14,-9,0,-4,1,0,9,10,50,0,0,0,60,84,78,78,135,41,353,374,364,377,379,395,362,388,400]} 1. d4 {[%emt 0:17:21]} d5 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:16]} e6 {[%emt 0:00:00]} 3. Nf3 {[%emt 0:00:21]} c5 {[%emt 0:00:00]} 4. e3 {[%emt 0:00:43]} Nc6 {[%emt 0:00:54]} 5. Nc3 {[%emt 0:00:49]} Nf6 {[%emt 0:00:47]} 6. Bd3 {[%emt 0:00:22]} dxc4 {[%emt 0:02:13]} 7. Bxc4 {[%emt 0:00:04]} cxd4 {[%emt 0:00:46]} 8. exd4 {[%emt 0:00:04]} Be7 {[%emt 0:00:48]} 9. O-O {[%emt 0:00:21]} O-O {[%emt 0:01:31]} 10. Re1 {[%emt 0:00:34]} h6 {[%emt 0:07:07] D40: Queen's Gambit Declined: Semi-Tarrasch with 5 e3.} 11. a3 {[%emt 0:01:42] [#]} Re8 $146 {[%emt 0:04:35]} ({Predecessor:} 11... a6 12. Be3 b5 13. Bd3 Bb7 14. b4 Rc8 15. Rc1 Re8 16. Ne4 Nxe4 17. Bxe4 Ba8 {1-0 (33) Ali,M (1851)-Shafayet,A Dhaka 2015}) 12. Bb3 {[%emt 0:03:04]} Bd6 {[%emt 0:06:39]} 13. Qd3 {[%emt 0:00:46]} Bc5 {[%emt 0:05:21]} (13... Ne7 $11) 14. Be3 {[%emt 0:04:45]} Bb6 {[%emt 0:07:39]} 15. Rad1 {[%emt 0:04:57]} e5 {[%emt 0:01:54] [#]} (15... Bc7 $142) 16. Qc4 {[%emt 0:04:18]} ({White should try} 16. Bxh6 $1 $16 {[%mdl 512]} Be6 (16... gxh6 17. Qg6+) 17. d5 Nxd5 18. Nxd5 (18. Bxd5 gxh6 19. Qe4 Qf6 $16) 18... gxh6 19. Bc2 (19. Nxe5 Bxd5 20. Qg3+ Qg5 $14)) 16... Be6 $2 {[%emt 0:02:11]} ({Black should try} 16... Qe7 $14) 17. d5 {[%emt 0:00:37] Double Attack} Na5 {[%emt 0:01:26]} 18. dxe6 {[%emt 0:07:06]} Nxc4 {[%emt 0:01:50]} 19. Rxd8 {[%emt 0:01:25]} Raxd8 {[%emt 0:01:02]} 20. Bxb6 $18 {[%emt 0:01:00]} ({Don't play} 20. Bxc4 fxe6 21. Bxb6 (21. Nxe5 Bxe3 22. fxe3 Rd2 $18) 21... axb6 $18) 20... axb6 {[%emt 0:00:39]} 21. exf7+ {[%emt 0:00:18]} Kxf7 {[%emt 0:00:07]} 22. Bxc4+ {[%emt 0:00:05]} Kf8 {[%emt 0:01:27]} 23. Nxe5 g5 24. Nd7+ 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.20"]
[White "Vassallo, Mariano"]
[Black "Meza, Anahi"]
[Result "0-1"]
[ECO "B43"]
[WhiteElo "1313"]
[BlackElo "2046"]
[Annotator "NA RC"]
[PlyCount "64"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 9,63,17,48,42,53,42,61,41,55,6,25,-9,0,0,15,-32,-26,-41,-37,-43,-56,-49,-47,-53,-47,-75,-60,-79,-84,-118,-98,-82,-46,-50,-50,-137,-70,-147,-148,-149,-159,-162,-160,-170,-167,-481,-500,-738,-774,-1151,-1272,-1733,-1749,-2177,-1594,-29988]} 1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 3. d4 {[%emt 0:00:39]} cxd4 {[%emt 0:00:00]} 4. Nxd4 {[%emt 0:00:29]} a6 {[%emt 0:00:00]} 5. Nc3 {[%emt 0:00:39]} b5 {[%emt 0:00:13]} 6. Bd3 {[%emt 0:01:00]} Qb6 {[%emt 0:00:25]} 7. Nf3 {[%emt 0:03:08]} d6 {[%emt 0:14:47] B43: Sicilian: Kan Variation: 5 Nc3.} 8. O-O {[%emt 0:04:47]} Bb7 {[%emt 0:03:34] [#]} 9. Ne2 $146 {[%emt 0:05:23]} ({Predecessor:} 9. Re1 Nd7 10. a4 b4 11. a5 Qc7 12. Na2 Ngf6 13. Nxb4 d5 14. Nxd5 exd5 15. exd5+ {1-0 (55) Peng,X (2588)-Tong,Y (2502) Chengdu 2009}) 9... Nf6 {[%emt 0:03:56]} 10. Ng3 {[%emt 0:00:54]} Nbd7 {[%emt 0:02:00]} 11. Be3 {[%emt 0:05:53]} Qc7 {[%emt 0:00:57]} 12. h3 {[%emt 0:02:41]} Be7 {[%emt 0:06:15]} 13. Re1 {[%emt 0:03:43]} O-O {[%emt 0:02:18]} 14. c3 {[%emt 0:01:32]} Nc5 {[%emt 0:16:49]} 15. Bxc5 {[%emt 0:04:24]} Qxc5 {[%emt 0:00:33]} 16. Qe2 {[%emt 0:07:54]} Nd7 {[%emt 0:09:16]} 17. Nd4 {[%emt 0:11:01]} Ne5 {[%emt 0:03:12]} 18. Nb3 {[%emt 0:03:33]} Qb6 {[%emt 0:02:09]} 19. Bc2 {[%emt 0:02:49]} Bh4 {[%emt 0:08:53]} 20. Nf1 {[%emt 0:06:06]} Rac8 {[%emt 0:05:41]} ({Black should play} 20... b4 $17 21. Rab1 Rfc8) 21. Ne3 {[%emt 0:03:24]} Bg5 {[%emt 0:05:08]} 22. Qh5 {[%emt 0:04:42]} (22. a3 $15) 22... Bf6 {[%emt 0:00:49]} 23. Ng4 {[%emt 0:02:20]} ({White should play} 23. a3 $15) 23... Nxg4 {[%emt 0:00:38]} 24. Qxg4 {[%emt 0:00:21]} b4 {[%emt 0:00:46]} 25. Re3 {[%emt 0:03:52]} bxc3 {[%emt 0:00:57]} 26. bxc3 {[%emt 0:03:25]} Bxc3 {[%emt 0:02:17]} 27. Rc1 $2 {[%emt 0:06:43]} (27. Rb1 {is more resistant.}) 27... Bb2 {[%emt 0:00:37]} 28. Rg3 {[%emt 0:01:11]} (28. Qd1 $142 Qc7 29. Re2 Bxc1 30. Nxc1) 28... g6 {[%emt 0:00:15]} 29. e5 {[%emt 0:00:53]} Bxc1 {[%emt 0:02:06]} 30. Bxg6 {[%emt 0:00:17]} hxg6 {[%emt 0:01:19]} 31. Qh5 {[%emt 0:00:08]} Be4 {[%emt 0:00:45]} 32. exd6 {[%emt 0:01:23]} Qxd6 {[%emt 0:00:14]} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.21"]
[White "Vitoux, Colomban"]
[Black "De Cuadro, Dionisio"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2377"]
[BlackElo "1650"]
[Annotator "TA"]
[PlyCount "49"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,49,-1,20,-23,18,16,18,0,0,0,28,2,14,22,82,77,118,112,201,191,221,206,347,347,330,296,281,286,276,254,287,206,310,194,424,437,427,435,431,421,1096,1091]} 1. c4 c5 2. Nf3 Nc6 3. g3 Nf6 4. Bg2 e5 5. O-O Be7 6. b3 {A30: Symmetrical English: Double Fianchetto and Hedgehog.} d6 7. Bb2 O-O 8. e3 {The position is equal.} Bg4 {[#] And now ...e4 would win.} 9. h3 {[#]} Bf5 $146 ({Predecessor:} 9... Bh5 10. d3 e4 11. dxe4 Nxe4 12. a3 Bf6 13. Qc2 Bg6 14. Bxf6 Qxf6 15. Qa2 Rad8 {½-½ (35) Gupta,R (1626)-Serrano Campos,J (1930) Barbera del Valles 2019}) 10. d4 cxd4 11. exd4 Qc7 (11... e4 $11 {keeps the balance.} 12. Nh4 Bd7) 12. Nc3 $16 a6 13. Rc1 Rfd8 {[#]} (13... e4 $16 {was called for.}) 14. Nd5 $1 $18 {[%cal Rd5c7]} Qa5 15. Nh4 ({Much less strong is} 15. dxe5 $6 Nxd5 16. cxd5 (16. Qxd5 Qxa2 {[%mdl 64] Double Attack} 17. exd6 Qxb2 $11) 16... dxe5) 15... Bc8 (15... Bg6 {was worth a try.} 16. Bc3 Qa3 17. Nxe7+ Nxe7) 16. Bc3 Qa3 {Black wants to play ...Nxd5.} 17. Nxe7+ Nxe7 18. Qd2 a5 19. dxe5 Ne8 20. Rfd1 {aiming for Qg5.} Qc5 (20... Nc6 $142 21. exd6 Rxd6) 21. Qg5 Qc7 $2 (21... f6 22. Qh5 fxe5 23. Bxe5 Be6) 22. exd6 {White is clearly winning.} Rxd6 23. Be5 {Black must now prevent Rxd6.} Rxd1+ 24. Rxd1 h6 (24... f6 $142 25. Qh5 g6 26. Bxc7 gxh5) 25. Qe3 {Accuracy: White = 71%, Black = 36%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.22"]
[White "Coppola, Claudio"]
[Black "Aguilar Samper, Valentin"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2314"]
[BlackElo "1946"]
[Annotator "TA"]
[PlyCount "43"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,43,-18,-18,-22,12,-15,-1,0,0,0,4,4,10,5,97,91,105,96,114,114,110,-41,-35,-44,-34,-40,-37,-38,589,569,611,624,1275,1262,1990,1950]} 1. d4 d5 2. Nc3 Nf6 3. Bf4 a6 4. e3 e6 5. Nf3 c5 6. Ne5 {D00: 1 d4 d5: Unusual lines.} Nc6 7. Be2 cxd4 8. exd4 {The position is equal.} Qb6 9. Na4 Qa5+ 10. c3 Nxe5 11. dxe5 {[#]} Ne4 $146 {[#]} (11... Nd7 $11) ({Predecessor:} 11... Nd7 12. b4 Qc7 13. Qd4 g5 14. Bxg5 Rg8 15. Bh4 b5 16. Nb2 Qxe5 17. Qd3 Bg7 {½-½ (64) Bromann,T (2395)-Thorfinnsson,B (2433) Reykjavik 2019}) 12. Be3 $1 $16 {[%cal Re3b6]} Bd7 13. Nb6 $36 {[%mdl 2048] White is on the roll.} Rd8 14. Nxd7 Rxd7 15. f3 $2 ({White should play} 15. Bd4 $16) 15... d4 $1 $15 {[%cal Rd4c3]} 16. Bxd4 Bc5 {[#] Threatens to win with ...Bxd4.} 17. Qc2 {Hoping for b4.} Rxd4 18. fxe4 Qc7 $2 {[%mdl 8192]} (18... Ba7 $15 {keeps the upper hand.}) 19. cxd4 $18 {White is clearly winning.} Qa5+ 20. Kf1 Bxd4 21. Qc8+ Ke7 22. Qxb7+ {[%mdl 64] Double Attack. Accuracy: White = 72%, Black = 54%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.23"]
[White "Michailov, Matias"]
[Black "Pinero, Ismael"]
[Result "1-0"]
[ECO "B34"]
[WhiteElo "2262"]
[BlackElo "1914"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,73,7,16,0,12,0,0,0,18,16,62,68,56,63,56,59,100,62,67,56,76,81,89,60,81,82,169,131,152,98,190,155,217,159,491,473,494,503,834,843,894,835,962,361,565,568,755,765,743,752,5261,5210,29973,11523,5357,5318]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Nd5 Nxd5 8. exd5 Nb8 9. a4 Be7 10. Be2 O-O 11. Bd2 {B33: Sicilian: Pelikan and Sveshnikov Variations.} f5 12. O-O a6 13. Na3 {The position is equal.} Nd7 14. a5 {[#]} Kh8 $146 ({Predecessor:} 14... e4 15. Nc4 Ne5 16. Nb6 Rb8 17. f4 exf3 18. Bxf3 Bf6 19. c3 g5 20. Be2 f4 21. Nxc8 Qxc8 {½-½ (40) Svidler,P (2735)-Caruana,F (2819) Karlsruhe/Baden Baden 2019}) 15. Nc4 Nf6 16. Nb6 $36 {[%mdl 2048] White has the initiative.} Rb8 17. f4 Qc7 18. Be3 exf4 19. Rxf4 Nd7 20. Ra3 Ne5 21. Bd4 Ng6 22. Rf1 Qd8 (22... Bf6 $16) 23. c4 $18 Bf6 24. c5 (24. b4 $142) 24... Be5 (24... Bxd4+ $16 25. Qxd4 dxc5 26. Qxc5 Bd7) 25. c6 Rf7 (25... bxc6 $16 {was called for.} 26. dxc6 Qe7) 26. Bh5 Bxd4+ $2 {[#]} (26... bxc6 $16 27. dxc6 Be6 28. Bxg6 hxg6) 27. Qxd4 bxc6 28. dxc6 Be6 (28... f4 $142 29. Bxg6 hxg6) 29. Bxg6 hxg6 30. Re1 Rf6 31. Qh4+ Kg8 32. Rae3 Rxb6 33. axb6 Qxb6 34. Qf2 Kf7 35. Rxe6 Qxf2+ 36. Kxf2 {[#] White threatens Rxf6+ and mate.} Rxe6 37. c7 {Accuracy: White = 78%, Black = 42%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.24"]
[White "El Ters, Antouan"]
[Black "Avedisian, Alexander"]
[Result "1-0"]
[ECO "B27"]
[WhiteElo "2189"]
[BlackElo "1892"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,83,61,92,92,159,153,160,93,121,121,127,117,202,194,243,242,277,270,293,283,300,281,473,433,382,346,347,329,376,370,357,217,339,350,301,235,286,158,266,209,321,342,406,393,389,378,442,435,486,481,477,436,510,596,588,455,1058,1066,1297,1292,1439,1426,1418,1356,1333,1202,29973,29974,29980,29980,29991,29992,29997,29998,29998,29999]} 1. e4 c5 2. Nf3 g6 3. Bc4 Nc6 4. c3 Na5 5. Be2 {[#]} Nc6 $146 ({Predecessor:} 5... Bg7 6. d4 cxd4 7. cxd4 Nf6 8. Nc3 O-O 9. e5 Ne8 10. O-O d5 11. b4 Nc6 12. b5 {0-1 (45) Kotan,L (2334)-Ruzicka,P (2267) Olomouc 2008}) 6. d4 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6.} d5 {[#]} (6... Bg7 $142) 7. exd5 $1 $16 ({Resist} 7. dxc5 $6 dxe4 8. Qxd8+ Nxd8 $11) 7... Qxd5 {[#]} 8. c4 (8. Na3 $142 $1) 8... Qd6 {[%cal Rc5d4]} 9. d5 Ne5 10. Nc3 a6 (10... Nxf3+ $16 {was called for.} 11. Bxf3 Qe5+ 12. Be2 Nf6) 11. Ne4 $18 Nxf3+ 12. Bxf3 Qc7 13. O-O Bf5 14. Qa4+ Bd7 15. Qa3 {d6 is the strong threat.} Rc8 $2 (15... Bf5 {might work better.} 16. Qxc5 Qxc5 17. Nxc5 O-O-O) 16. Qc3 f6 17. Re1 Kf7 18. Be3 b6 19. Rad1 Bf5 20. a4 a5 (20... Bxe4 {was necessary.} 21. Bxe4 Bh6) 21. Ng3 {Strongly threatening d6!} Bd7 22. h4 h5 23. Ne4 (23. d6 $18 exd6 24. Bd5+ Be6 25. Bxe6+ Kxe6 26. Bxc5+ Kf7 27. Bd4) 23... Bf5 (23... Qd8 $16 24. b3 Bg7) 24. g3 Bxe4 (24... Re8 $142 25. Bc1 Qa7) 25. Bxe4 Qd7 26. Qc2 f5 27. Bf3 Nf6 28. Bg5 Ne8 29. Re6 Nd6 30. Rde1 Re8 31. b3 Rh7 32. Qe2 f4 (32... Rh8 $142 33. Qe3 Qd8) 33. Bxf4 Nf5 34. Be4 Bg7 35. Bxf5 gxf5 36. Qc2 {Played: Qe2-d3} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.25"]
[White "Cucchi, Nicolas"]
[Black "Carvalho, Guillermo"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "1970"]
[BlackElo "2187"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,76,12,35,4,9,8,8,9,35,15,22,30,43,0,14,-46,-43,-54,-55,-63,-60,-70,-64,-67,-63,-82,-67,-74,-73,-70,-38,-37,-37,-37,-37,-42,-48,-78,-78,-75,-82,-82,-58,-50,-8,-8,0,0,0,0,0,-32,-14,-27,-27,-66,-11,-19,-4,-10,0,0,0]} 1. Nf3 d5 2. b3 Nf6 3. Bb2 Bf5 4. d3 e6 5. g3 h6 6. Bg2 Be7 7. O-O O-O 8. Nbd2 c5 9. Re1 {A07: Réti Opening: New York and Capablanca Systems.} Nc6 10. Ne5 Nxe5 11. Bxe5 {[#]} Qb6 $146 ({Predecessor:} 11... Nd7 12. Bb2 Bf6 13. Bxf6 Nxf6 14. e4 Bh7 15. e5 Nd7 16. Qe2 Rc8 17. h4 Nb8 {½-½ (34) Cosic,R (2157)-Jukic,Z (2266) Croatia 2015}) 12. h3 Bg6 13. e4 Rad8 14. Qe2 Rfe8 15. Bxf6 (15. a4 $11) 15... Bxf6 $15 16. e5 Be7 17. Nf3 Qa5 18. Red1 Qc3 19. Qd2 Qxd2 20. Rxd2 c4 21. bxc4 dxc4 22. dxc4 b6 23. Rad1 {[#]} Bxc2 $1 {[%mdl 512]} 24. Rxd8 (24. Rxc2 Rxd1+) 24... Rxd8 25. Rxd8+ Bxd8 {[%mdl 4096] Endgame KBB-KBN} 26. Nd4 Bb1 27. Nc6 Bc7 28. a3 a6 {[%cal Ba7a6,Ba6a5][%mdl 32]} 29. f4 Kf8 30. Kf2 Ke8 31. Ke3 Kd7 32. Nb4 a5 33. Bc6+ Kc8 34. Nd3 f6 35. Kd4 Bd8 (35... Bxd3 $15 36. Kxd3 fxe5) 36. a4 $11 {The position is equal.} fxe5+ 37. fxe5 Kc7 38. Bb5 Bxd3 {Accuracy: White = 74%, Black = 83%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.26"]
[White "Benoit, Rodrigo"]
[Black "Palacio, Enzo"]
[Result "1-0"]
[ECO "B53"]
[WhiteElo "2170"]
[BlackElo "1869"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,93,-3,-16,31,-8,35,37,45,33,56,0,43,38,64,39,49,15,53,35,84,72,99,82,89,83,95,0,106,89,88,85,106,97,204,203,218,157,1272,1070,698,189,166,130,314,289,303,280,308,286,263,236,234,0,315,307,296,277,277,263,267,274,280,244,364,346,331,333,796,712,767,327,29990,29991,29997,29998]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Bd7 6. Bxc6 Bxc6 7. O-O Nf6 8. Re1 g6 9. c4 Bg7 10. Nc3 O-O 11. Qd3 Qd7 {B53: Sicilian: 2...d6: Lines with Qxd4.} 12. Bf4 Rfd8 {[#]} 13. Rad1 $146 ({Predecessor:} 13. h3 Rac8 14. Rad1 a6 15. Nd5 Bxd5 16. cxd5 Nh5 17. Bc1 Qa4 18. a3 Qc2 19. Rd2 Qxd3 20. Rxd3 {½-½ (41) Ng,C-Nguyen Tan Hoang,N (1792) Caldas Novas 2011}) 13... Rac8 {White is slightly better.} 14. b3 Qe8 15. Nd5 (15. Nd4 $14) 15... Bxd5 16. exd5 Qd7 17. Re2 Re8 18. Rde1 a6 19. h3 Kf8 20. Nd4 Rc7 21. Bd2 Rcc8 22. Qf3 Kg8 23. Qd3 Kf8 $1 24. a4 $36 {[%mdl 2048] White is on the roll.} Qc7 25. Kh1 Qd7 26. g4 Rc7 (26... Qc7 $16) 27. f4 $18 Rcc8 28. f5 Ng8 $2 (28... Kg8 $16 29. Ba5 g5) 29. fxg6 hxg6 {[#]} 30. Nf3 $2 (30. Ne6+ $1 {[%mdl 512]} fxe6 31. Rxe6) 30... Nf6 31. a5 Rc7 $2 (31... Kg8 $16 {might work better.} 32. Ng5 Nh7) 32. Ng5 Kg8 33. Rf1 Rf8 34. Ref2 Qe8 35. Qg3 {Black must now prevent Qh4.} Bh6 {With the idea ...Bxg5.} 36. Qd3 $2 ({White should try} 36. Re1 $18 {Rxf6! is the strong threat.} Nd7 37. Bf4) 36... Bxg5 $4 {[%mdl 8192]} (36... Bg7 $1 $11 {and Black is okay.}) 37. Bxg5 Kg7 38. Qe3 {[%cal Rf2f6] Threatens to win with Rxf6.} ({Less strong is} 38. Bxf6+ exf6 39. Rxf6 Re7 $18) 38... Ng8 39. h4 f6 40. h5 gxh5 41. gxh5 Qxh5+ (41... Rf7 $142 42. Bf4 Kh8 43. Bxd6 Rc8) 42. Rh2 Qxg5 {[#]} 43. Rg1 $1 {[%mdl 512]} Qxg1+ $2 (43... Kf7 44. Rxg5 fxg5) 44. Qxg1+ Kf7 45. Qe3 (45. Qg4 $142 {White threatens Qh5+ and mate.} Ke8 46. Rh8) 45... Rcc8 $2 (45... f5 $18 46. Qb6 (46. Qg5 Nf6 $18) 46... Rd7) 46. Qe6+ Kg7 47. Qg4+ {Accuracy: White = 69%, Black = 47%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.27"]
[White "Trois, Francisco R.T."]
[Black "Barandiaran, Gabriel"]
[Result "1-0"]
[ECO "A22"]
[WhiteElo "2141"]
[BlackElo "1834"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,67,24,20,20,27,25,28,25,27,17,37,35,45,45,38,42,45,35,101,62,66,52,98,89,78,57,95,79,128,129,429,402,423,401,511,514,784,772,844,816,800,788,862,855,947,898,1284,1164,1360,1377,1256,1187,1187,1206,3107,3805,2528,1118]} 1. c4 e5 2. Nc3 Nf6 3. Nf3 d6 4. g3 c5 5. Bg2 Nc6 6. O-O Be7 7. a3 {[#] A34: Symmetrical English: 2 Nc3, lines with ...d5.} Bf5 $146 {[#]} ({Predecessor:} 7... O-O 8. Rb1 h6 9. b4 e4 10. Ne1 Bf5 11. d3 exd3 12. Nxd3 Rb8 13. Bf4 g5 14. Be3 Ne5 15. bxc5 Nxd3 16. exd3 dxc5 {1-0 (30) Socko,B (2588)-Bartel,M (2360) Poland 2018}) 8. b4 $1 {[%cal Bb2b4,Bb4b5][%mdl 544]} Qd7 (8... cxb4 9. axb4) 9. b5 {White has an edge.} Nd4 10. d3 Bh3 11. e3 {aiming for Bxh3.} Bxg2 12. Kxg2 Ne6 13. a4 h6 14. e4 Ng5 (14... a6 $14) 15. Ng1 Ne6 16. f4 exf4 17. gxf4 Nd4 18. h3 g6 19. Be3 Nh5 20. Nd5 f5 $2 {[%mdl 8192] [#]} (20... Nf6 $16 {was called for.}) 21. Bxd4 $18 cxd4 22. exf5 O-O-O 23. fxg6 {White is clearly winning.} Ng7 (23... Nf6 $142 24. Re1 Nxd5) 24. Qg4 Rde8 25. Qxd7+ Kxd7 26. f5 Nh5 27. f6 Bd8 28. f7 Ref8 29. Nf3 Ng7 30. Nxd4 h5 31. Kh1 Rh6 32. Rg1 Bb6 33. Nxb6+ axb6 34. Rad1 {Accuracy: White = 92%, Black = 34%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.28"]
[White "Silva Rosas, Natalia"]
[Black "Torella, Rodolfo"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "1787"]
[BlackElo "2081"]
[Annotator "NA RC"]
[PlyCount "78"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 8,66,0,-13,16,-28,-29,-18,0,-5,-4,-31,-12,-22,-26,-41,6,0,0,0,0,-6,0,0,49,-14,0,-202,-197,-183,-188,-169,-139,-190,-154,-218,32767,-231,32767,32767,32767,32767,32767,-433,32767,-345,-363,-382,-435,-391,-422,-474,-496,-597,-600,-702,32767,32767,32767,32767,-883]} 1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:00]} 2. Nc3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:16]} 3. f4 {[%emt 0:00:00]} e6 {[%emt 0:01:23]} 4. Nf3 {[%emt 0:00:00]} a6 {[%emt 0:01:12]} 5. a4 {[%emt 0:00:03]} d6 {[%emt 0:04:41]} 6. Bc4 {[%emt 0:00:22]} Nf6 {[%emt 0:02:18]} 7. d3 {[%emt 0:03:39]} Be7 {[%emt 0:07:36]} 8. O-O {[%emt 0:00:09]} O-O {[%emt 0:00:53]} 9. Qe1 {[%emt 0:00:19]} Nb4 {[%emt 0:06:38] B23: Closed Sicilian: Lines without g3.} 10. Qf2 {[%emt 0:02:21]} Qc7 {[%emt 0:06:20] [#]} 11. e5 $146 {[%emt 0:05:29]} ({Predecessor:} 11. Kh1 Bd7 12. Rg1 Ng4 13. Qe2 Kh8 14. h3 Nf6 15. g4 Bc6 16. g5 Ng8 17. h4 {½-½ (58) Hina,A (1370)-Gade,J (1575) Helsingor 2016}) 11... Nd7 {[%emt 0:04:27]} 12. exd6 {[%emt 0:03:00]} Bxd6 {[%emt 0:00:40]} 13. Ne4 {[%emt 0:00:36]} Be7 {[%emt 0:09:59]} 14. c3 {[%emt 0:00:42]} Nd5 {[%emt 0:00:26]} 15. f5 {[%emt 0:00:51]} N7b6 {[%emt 0:10:45]} 16. Bxd5 {[%emt 0:04:45]} Nxd5 {[%emt 0:03:20]} 17. Bg5 $2 {[%emt 0:04:43]} (17. c4 $11 {and White is okay.} Nf6 18. Nxf6+ Bxf6 19. Be3) 17... f6 {[%emt 0:04:05]} ({Weaker is} 17... exf5 18. Bxe7 Qxe7 19. Nxc5 $11) 18. Bd2 {[%emt 0:02:38]} exf5 {[%emt 0:00:21]} 19. Ng3 {[%emt 0:00:51]} Bd6 {[%emt 0:04:40]} 20. Ne2 {[%emt 0:02:29]} Bd7 {[%emt 0:02:16]} 21. Qh4 {[%emt 0:02:23]} (21. c4 {was necessary.} Ne7 22. Rfc1) 21... Rae8 {[%emt 0:05:09]} 22. Rae1 {[%emt 0:05:12]} Ne3 {[%emt 0:00:03]} 23. Bxe3 {[%emt 0:01:56]} Rxe3 {[%emt 0:02:14]} 24. Nd2 {[%emt 0:02:59]} Rfe8 25. Rf2 {[%emt 0:03:29]} Kh8 {[%emt 0:05:15]} 26. Nf1 {[%emt 0:04:11]} R3e7 {[%emt 0:02:03]} ({Weaker is} 26... Rxd3 27. Qc4 $19) 27. Nfg3 {[%emt 0:00:16]} Bxg3 {[%emt 0:00:29] Pin} 28. hxg3 {[%emt 0:00:19]} Re3 {[%emt 0:01:46]} 29. Qh5 {[%emt 0:01:30]} Qc8 {[%emt 0:02:53]} 30. Rf4 {[%emt 0:02:27]} g6 {[%emt 0:01:18]} 31. Qh6 {[%emt 0:01:28]} Rxe2 {[%emt 0:01:14]} 32. Rxe2 {[%emt 0:00:21]} Rxe2 {[%emt 0:00:03]} 33. Rh4 {[%emt 0:00:26]} Qg8 $19 {[%emt 0:00:33]} 34. b4 {[%emt 0:00:45]} cxb4 {[%emt 0:01:17]} 35. Kf1 {[%emt 0:00:13]} Re8 {[%emt 0:01:10]} 36. cxb4 {[%emt 0:00:35]} Bxa4 {[%emt 0:01:03]} 37. Qc1 {[%emt 0:00:43]} Bb5 {[%emt 0:00:42]} 38. Qc3 {[%emt 0:00:10]} Qe6 {[%emt 0:00:15]} 39. Kg1 {[%emt 0:01:10]} Qe1+ {[%emt 0:00:10]} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.29"]
[White "Suarez, Pedro"]
[Black "Alvarez Ramirez, Miguel Angel"]
[Result "1-0"]
[ECO "E00"]
[WhiteElo "2063"]
[BlackElo "2282"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,94,61,81,57,59,11,36,33,41,6,0,7,20,-48,42,50,58,46,187,191,189,193,208,201,206,193,193,147,160,152,183,168,163,125,222,230,285,284,367,351,662,677,908,0,1414,1317,5373,4990,5497,989,29966,29967,3129,5373,29983,29984,29987,29958,5850,5787,29966,29967,29966,29965,29968,29965,29969,29966,29957,12460,6756,6070,29977,29977,29979,29980,29980,29981,29981,29982,29982,29983,29983,29984,29983]} 1. d4 Nf6 2. c4 e6 3. Nc3 c5 4. d5 exd5 5. cxd5 d6 6. Nf3 Bg4 7. Bf4 {[#] A60: Modern Benoni: Early Divergences.} Bxf3 $146 ({Predecessor:} 7... a6 8. a4 g6 9. e3 Bg7 10. Be2 O-O 11. Nd2 Bxe2 12. Qxe2 Re8 13. Nc4 Bf8 14. h3 Qc7 {1-0 (26) Groiss,W (1807)-Kessler,M (1697) Innsbruck 2019}) 8. gxf3 Be7 9. e4 {White is slightly better.} Nbd7 10. Qb3 O-O 11. Be2 Nh5 12. Be3 (12. Bg3 $1 $11) 12... Re8 (12... Bg5 $15) 13. f4 $36 {[%mdl 2048] White has good play.} Nhf6 14. O-O-O a6 {[#]} (14... Bf8 $14) 15. e5 $1 $18 (15. Qxb7 $6 Bf8 $14) 15... dxe5 16. d6 ({Not} 16. Qxb7 Bd6 $15) 16... Bf8 17. Bc4 ({Weaker is} 17. Qxb7 Rb8 $14) 17... exf4 18. Bxf7+ (18. Bxf4 Ne5 $16) 18... Kh8 19. Bxe8 fxe3 20. Bxd7 $1 e2 21. Nxe2 Qxd7 22. Qf3 Rd8 (22... Bxd6 $16 23. Ng3 Qc7) 23. Ng3 Qa4 24. Kb1 ({Resist} 24. Qxb7 $6 Bxd6 25. Qb3 Qf4+ 26. Qe3 Qb4 $18) 24... b5 25. Qc6 c4 $2 (25... Qf4 26. Qxc5 Rxd6 27. Rxd6 Qxd6 28. Qxd6 Bxd6) 26. Qc7 Rd7 27. Qc6 $2 (27. Qc8 $18 b4 28. Qxf8+ Ng8 29. Rd4) 27... Kg8 $2 {[%mdl 8192]} (27... Rd8 $11 28. Qc7 c3 29. Qxd8 c2+ 30. Kc1 cxd1=Q+ 31. Rxd1 Kg8) 28. Ne4 c3 29. Nxf6+ gxf6 30. Qxc3 (30. bxc3 $142 Kh8 31. Qxd7 Qe4+ 32. Ka1 Qe5 {[#]} 33. Qc8 $1 {[%mdl 576] Double Attack} Kg7 34. Rhg1+ Qg5 35. Rxg5+ fxg5 36. Qf5) 30... Qf4 31. Rhg1+ Kf7 {[#]} 32. Qb3+ {Played: Qc3-h3} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.30"]
[White "Pichuaga, Juan Pablo"]
[Black "Vieira, Alexandre Letizio"]
[Result "1-0"]
[ECO "B24"]
[WhiteElo "2030"]
[BlackElo "1722"]
[Annotator "NA RC"]
[PlyCount "87"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 14,87,18,12,20,25,49,0,-5,24,31,31,47,31,38,45,54,49,54,40,139,41,211,217,1262,329,313,311,289,304,347,357,361,350,815,320,312,318,350,32767,32767,32767,32767,32767,32767,412,439,488,460,431,497,581,365,818,739,32767,32767,32767,32767,484,298,413,339,508,768,533,32767,32767,32767,32767,12837,580,502,489,1185,1153]} 1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:00]} 2. Nc3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:00]} 3. g3 {[%emt 0:00:00]} g6 {[%emt 0:00:02]} 4. Bg2 {[%emt 0:00:00]} Bg7 {[%emt 0:00:04]} 5. d3 {[%emt 0:00:00]} e6 {[%emt 0:00:38]} 6. Be3 {[%emt 0:00:04]} b6 {[%emt 0:00:25]} 7. Qd2 {[%emt 0:00:14]} Bb7 {[%emt 0:00:19]} 8. Nge2 {[%emt 0:00:25]} a6 {[%emt 0:02:37] B24: Closed Sicilian: 3 g3 sidelines.} 9. O-O {[%emt 0:02:37]} Nge7 {[%emt 0:00:37]} 10. d4 {[%emt 0:02:39]} cxd4 {[%emt 0:01:29]} 11. Nxd4 {[%emt 0:01:04] [#]} O-O $146 {[%emt 0:02:17]} ({Predecessor:} 11... Ne5 12. Qe2 Rc8 13. Nd1 Nc4 14. c3 O-O 15. Bg5 f6 16. Bc1 e5 17. Nc2 b5 {½-½ (40) Aleksic,Z (1960)-Varjas,S (2060) Senta 2011}) 12. f4 {[%emt 0:03:42]} Nxd4 {[%emt 0:02:16]} 13. Bxd4 {[%emt 0:00:18]} Qc7 {[%emt 0:03:50]} 14. Bxg7 {[%emt 0:02:37]} Kxg7 {[%emt 0:00:07]} 15. Rad1 {[%emt 0:00:28]} Bc6 {[%emt 0:02:03]} 16. Rf2 {[%emt 0:05:43]} f5 {[%emt 0:02:07] [#]} (16... Rad8 $14) 17. Nd5 {[%emt 0:13:24]} (17. exf5 $1 $16 Nxf5 18. Bxc6 dxc6 19. Ne4) 17... Qd8 $2 {[%emt 0:13:16]} (17... exd5 $14 18. exd5 {[#]} Nxd5 $1 {[%mdl 512]} 19. Bxd5 Rae8) 18. Qd4+ {[%emt 0:01:26]} Kh6 $2 {[%emt 0:03:22]} (18... Kg8) 19. Nxb6 $2 {[%emt 0:02:21]} (19. g4 fxg4 20. Ne3) 19... Rb8 {[%emt 0:00:12]} 20. Nxd7 {[%emt 0:00:53]} Bxd7 {[%emt 0:02:24]} 21. Qxd7 {[%emt 0:01:08]} Qxd7 {[%emt 0:00:08]} 22. Rxd7 {[%emt 0:00:06]} Ng8 {[%emt 0:00:17]} 23. b3 {[%emt 0:00:57]} fxe4 $2 {[%emt 0:00:50]} (23... Nf6) 24. Bxe4 {[%emt 0:01:14]} (24. g4 $142 Nf6 25. g5+ {[%mdl 64] Double Attack} Kh5 26. gxf6) 24... Nf6 {[%emt 0:00:06]} 25. Rd4 {[%emt 0:00:13]} Rfd8 {[%emt 0:00:24]} 26. Rfd2 {[%emt 0:01:14]} Rxd4 {[%emt 0:00:06]} 27. Rxd4 {[%emt 0:00:06]} Nxe4 {[%emt 0:00:36]} 28. Rxe4 {[%emt 0:00:08]} Rb6 {[%emt 0:00:04]} 29. Kf2 {[%emt 0:00:35]} g5 {[%emt 0:00:06]} 30. Ke3 {[%emt 0:00:25]} Kg6 {[%emt 0:00:26]} 31. Kd4 {[%emt 0:00:55]} gxf4 {[%emt 0:00:24]} 32. Rxf4 {[%emt 0:01:07]} Rd6+ {[%emt 0:00:04]} 33. Ke5 {[%emt 0:01:06]} Rd2 {[%emt 0:00:06]} 34. Kxe6 {[%emt 0:00:31]} Rxc2 {[%emt 0:00:16]} 35. Rg4+ {[%emt 0:00:26]} Kh5 {[%emt 0:00:27]} 36. Ra4 {[%emt 0:01:59]} Rxh2 {[%emt 0:00:13]} 37. Kf6 {[%emt 0:05:51]} (37. Kf5 $142 h6 {[#]} 38. Rh4+ $1 {[%mdl 512]} Rxh4 39. gxh4 Kxh4 40. b4 Kg3 41. a4 (41. Kg6 Kf4 $11) 41... Kh3 42. b5) 37... Rh3 {[%emt 0:01:29]} 38. g4+ {[%emt 0:00:30]} Kh6 {[%emt 0:01:07]} (38... Kh4 $142 39. g5+ (39. Rxa6 Kxg4 40. Ra4+ Kf3 $16) 39... Kh5) 39. Rxa6 {[%emt 0:13:29]} (39. Ra5 $142 Rf3+ 40. Rf5) 39... Rf3+ {[%emt 0:01:09]} 40. Ke5+ {[%emt 0:00:07]} Kg5 {[%emt 0:00:21]} 41. Ra7 {[%emt 0:00:25]} Rf2 {[%emt 0:01:15]} 42. Rxh7 {[%emt 0:07:53]} Rxa2 {[%emt 0:00:21]} 43. Kd4 {[%emt 0:00:55]} Kxg4 {[%emt 0:00:12]} 44. Rf7 $18 {[%emt 0:00:10]} (44. b4 $142 Kf5 45. Re7) 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.31"]
[White "Escofet, Jaime"]
[Black "Manteiga, Franco"]
[Result "1/2-1/2"]
[ECO "A01"]
[WhiteElo "2025"]
[BlackElo "1703"]
[Annotator "NA RC"]
[PlyCount "53"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 8,54,13,10,2,16,12,10,12,2,8,-19,-2,-22,-22,-33,-30,-25,-33,-31,-39,-41,-43,-38,-41,-46,-41,-70,-58,-69,-65,-72,-81,-70,-83,-79,-66,-333,-345,-299,-357,-358,0,0,0,-94,-60,-98,-62]} 1. b3 {[%emt 0:00:00]} d5 {[%emt 0:00:00]} 2. Bb2 {[%emt 0:00:00]} Nf6 {[%emt 0:00:10]} 3. Nf3 {[%emt 0:00:00]} Bf5 {[%emt 0:01:57]} 4. g3 {[%emt 0:00:03]} e6 {[%emt 0:00:48]} 5. Bg2 {[%emt 0:00:17]} Be7 {[%emt 0:02:08]} 6. d3 {[%emt 0:00:08]} O-O {[%emt 0:01:00]} 7. Nbd2 {[%emt 0:00:14]} c5 {[%emt 0:04:35]} 8. O-O {[%emt 0:00:27]} Nc6 {[%emt 0:00:31]} 9. h3 {[%emt 0:01:10] A07: Réti Opening: New York and Capablanca Systems.} h6 {[%emt 0:03:46]} 10. Re1 {[%emt 0:03:18]} Qc7 {[%emt 0:05:17]} 11. e4 {[%emt 0:10:09]} dxe4 {[%emt 0:04:48]} 12. dxe4 {[%emt 0:00:06]} Bh7 {[%emt 0:01:10]} 13. a3 {[%emt 0:04:14]} Rad8 {[%emt 0:09:31]} 14. Qe2 {[%emt 0:02:32] [#]} Rd7 $146 {[%emt 0:07:42]} ({Predecessor:} 14... Nd4 15. Nxd4 cxd4 16. e5 Ne8 17. Be4 Bxe4 18. Qxe4 d3 19. c4 b5 20. Rac1 b4 21. axb4 Bxb4 {1-0 (41) Kovacs,A (2049)-Katona,J (1997) Hungary 2004}) 15. e5 {[%emt 0:10:42]} Nd5 {[%emt 0:01:07]} 16. Ne4 {[%emt 0:00:34]} Rfd8 {[%emt 0:10:26]} 17. Kh2 {[%emt 0:24:42]} Qb6 {[%emt 0:12:40]} 18. Nfd2 {[%emt 0:06:45]} Nd4 {[%emt 0:07:39]} 19. Nc4 {[%emt 0:03:24]} Qc7 {[%emt 0:07:57]} 20. Bxd4 {[%emt 0:02:44]} cxd4 {[%emt 0:00:09]} 21. a4 {[%emt 0:04:51]} Nb4 {[%emt 0:07:25]} 22. Qg4 $2 {[%emt 0:03:10]} (22. Rf1 $15) 22... Nxc2 {[%emt 0:03:41] Double Attack} 23. Nf6+ {[%emt 0:00:05]} Bxf6 {[%emt 0:00:31]} 24. exf6 {[%emt 0:00:08] [#]} g6 $2 {[%emt 0:01:25]} (24... Bg6 $1 $19 25. h4 Nxa1) 25. Qh4 {[%emt 0:01:23]} Qc5 $1 {[%emt 0:02:04]} 26. Re5 {[%emt 0:00:28]} (26. Qxh6 $11 {remains equal.} Qf8 27. Qd2) 26... Qf8 {[%emt 0:01:06]} 27. Rd1 $17 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.10"]
[Round "4.32"]
[White "Maestro, Esteban"]
[Black "Dotta, Gian Franco"]
[Result "0-1"]
[ECO "B32"]
[WhiteElo "1571"]
[BlackElo "2000"]
[Annotator "NA RC"]
[PlyCount "86"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 9,85,40,53,49,46,43,56,18,57,46,48,47,57,33,58,24,38,22,22,33,28,14,18,-31,-16,-26,-31,-32,-36,-33,-27,-38,-37,-102,-87,-204,-164,-183,-150,-174,-185,-201,-179,-175,-134,-187,-189,-189,-66,-131,-97,-80,-56,-180,-118,-72,0,-212,-424,-414,-256,-256,-8,-8,-14,0,0,0,-26,32767,32767,32767,32767,32767,32767,32767,-29985,-29985]} 1. e4 {[%emt 0:00:00]} c5 {[%emt 0:04:07]} 2. Nf3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:06]} 3. d4 {[%emt 0:00:00]} cxd4 {[%emt 0:00:05]} 4. Nxd4 {[%emt 0:00:00]} Qb6 {[%emt 0:00:04]} 5. Nb3 {[%emt 0:00:29]} Nf6 {[%emt 0:00:09]} 6. Nc3 {[%emt 0:00:34]} e6 {[%emt 0:00:18]} 7. Be3 {[%emt 0:00:21]} Qc7 {[%emt 0:00:25]} 8. Bd3 {[%emt 0:01:23]} Be7 {[%emt 0:00:38]} 9. f4 {[%emt 0:01:09]} d6 {[%emt 0:00:24]} 10. Qf3 {[%emt 0:00:56]} a6 {[%emt 0:03:10]} 11. O-O {[%emt 0:00:45]} O-O {[%emt 0:00:35]} 12. Rae1 {[%emt 0:07:58]} Nb4 {[%emt 0:20:11]} 13. Nd4 {[%emt 0:07:06] [#] B33: Sicilian: Pelikan and Sveshnikov Variations.} b5 $146 {[%emt 0:03:28]} ({Predecessor:} 13... Re8 14. a3 Nxd3 15. cxd3 b5 16. Rc1 Qb7 17. f5 e5 18. Nb3 a5 19. g4 b4 20. axb4 axb4 {½-½ (79) Purtov,A (2427)-Shcherbakov,R (2539) Omsk 2001}) 14. a3 {[%emt 0:01:49]} Nxd3 15. cxd3 {[%emt 0:00:58]} Bb7 {[%emt 0:05:22]} 16. f5 {[%emt 0:10:17]} ({White should play} 16. Rc1 $11) 16... e5 {[%emt 0:06:51]} 17. Nde2 {[%emt 0:06:45]} Rfd8 {[%emt 0:04:03]} 18. Rc1 {[%emt 0:01:46]} Qd7 {[%emt 0:06:13]} 19. Nd5 {[%emt 0:11:17]} Nxd5 {[%emt 0:01:17]} 20. exd5 {[%emt 0:00:05]} a5 {[%emt 0:02:07]} 21. b3 {[%emt 0:04:33]} (21. Nc3 $15) 21... Rdc8 {[%emt 0:01:42]} 22. g4 {[%emt 0:05:17]} (22. b4 $17) 22... Rxc1 {[%emt 0:01:20]} 23. Rxc1 {[%emt 0:00:11]} Rc8 {[%emt 0:00:12]} 24. g5 {[%emt 0:05:16]} Rxc1+ {[%emt 0:01:12]} 25. Nxc1 {[%emt 0:01:38]} Bd8 {[%emt 0:04:27]} 26. h4 {[%emt 0:08:23]} Ba8 {[%emt 0:02:26]} (26... Qc8 $19 27. f6 Qc3) 27. h5 {[%emt 0:08:07]} (27. Kf2 $17 {was called for.}) 27... Qb7 {[%emt 0:01:08]} 28. Kf2 {[%emt 0:06:05]} Bb6 {[%emt 0:00:54]} (28... Qxd5 $19 29. Qxd5 Bxd5) 29. h6 {[%emt 0:04:01]} (29. f6 $15) 29... Bxe3+ {[%emt 0:00:34]} 30. Qxe3 {[%emt 0:00:32]} Qxd5 {[%emt 0:02:00]} 31. Ke2 {[%emt 0:03:11]} (31. Ne2 $17 {keeps fighting.}) 31... Qc5 {[%emt 0:00:56]} ({Black should play} 31... Qg2+ $19 32. Ke1 gxh6 33. gxh6 Bd5) 32. f6 {[%emt 0:03:05]} g6 {[%emt 0:01:10]} (32... gxf6 $17 33. gxf6 Kf8) 33. Qxc5 $2 {[%emt 0:01:08]} (33. d4 $1 $11 {and White is okay.} Qc2+ 34. Ke1) 33... dxc5 {[%emt 0:00:06]} 34. Ke3 {[%emt 0:00:12]} b4 {[%emt 0:00:19]} 35. axb4 {[%emt 0:00:22]} axb4 $2 {[%emt 0:02:02]} (35... cxb4 $19 36. d4 e4) 36. Ne2 {[%emt 0:01:19]} Bd5 {[%emt 0:00:10]} 37. Ng3 $1 {[%emt 0:00:37]} Bxb3 {[%emt 0:01:48]} (37... Kf8 $5 38. Ne4 $8 Bxb3 39. Nxc5 Ba2 $11) 38. Ne4 {[%emt 0:00:35]} c4 {[%emt 0:01:10]} 39. dxc4 {[%emt 0:00:09]} Bxc4 {[%emt 0:00:10]} 40. Nd2 {[%emt 0:00:57]} Bd5 {[%emt 0:00:09]} 41. Kd3 {[%emt 0:00:20]} Kf8 {[%emt 0:00:12]} 42. Nc4 {[%emt 0:00:27]} e4+ {[%emt 0:00:47]} 43. Kd4 {[%emt 0:00:24]} Bxc4 {[%emt 0:00:05]} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.1"]
[White "Vazquez, Guillermo"]
[Black "Hernandez Guerrero, Gilberto"]
[Result "1/2-1/2"]
[ECO "B30"]
[WhiteElo "2524"]
[BlackElo "2557"]
[Annotator "TA"]
[PlyCount "110"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,110,25,29,19,27,18,16,15,17,4,22,0,0,0,10,0,0,0,0,0,0,0,25,16,10,13,20,18,12,10,22,34,48,51,62,10,31,32,34,20,16,6,11,0,0,0,0,-3,0,0,0,0,0,0,7,0,0,0,0,0,0,0,0,0,5,5,2,6,4,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. Re1 Ng6 6. c3 d5 7. exd5 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6.} Qxd5 8. d4 cxd4 9. Nxd4 Bd7 {[#]} 10. Bf1 $146 (10. Qb3 {keeps more tension.} Qxb3 11. Nxb3 Be7 12. Be3 O-O 13. Rd1) ({Predecessor:} 10. Bd3 Qd6 11. Nf5 Qc7 12. Na3 a6 13. Be3 Nce5 14. Bd4 O-O-O 15. Ng3 Nxd3 16. Qxd3 {½-½ (31) Vazquez,G (2495)-Felgaer,R (2559) Caioba 2019}) 10... Be7 11. Nb5 {[#] Strongly threatening Nc7+.} Qxd1 $1 12. Rxd1 {aiming for Nc7+.} O-O-O 13. N1a3 Kb8 14. Be3 e5 15. Nc4 Be6 16. a4 f5 (16... f6 {looks sharper.} 17. Re1 Nh4 18. f3 Nf5 19. Bf2 g5) 17. f3 Rxd1 18. Rxd1 a6 19. Nba3 $1 Rd8 20. Re1 Bh4 21. g3 Bf6 22. Bc5 Rd5 23. Bf2 (23. Bd6+ $14 Ka7 24. b4) 23... Nge7 24. b4 Nc8 25. b5 axb5 {The position is equal.} 26. axb5 Nd8 27. Nb6 Nxb6 28. Bxb6 Nf7 29. Be3 Be7 30. Nc2 g6 31. Nb4 Rd7 32. Nd3 Bd6 33. Nc5 Bxc5 $1 34. Bxc5 Rc7 35. Bb4 Bc4 36. Ba5 Rc8 37. Rd1 Bxf1 38. Kxf1 $11 {[%mdl 4096] Endgame KRB-KRN} Rc5 39. Rd7 Ng5 40. Ke2 {With the idea Bb6.} Rxb5 41. Bb4 Kc8 42. Rg7 e4 43. fxe4 Re5 44. Bd6 Rxe4+ 45. Kd3 b5 46. h4 Re6 47. Bf4 Ne4 48. Rc7+ Kd8 49. Rxh7 Rc6 50. Kd4 Rc4+ 51. Ke5 Rxc3 52. Rb7 Nxg3 53. Bxg3 Rxg3 54. Rxb5 Rg4 {[#]} 55. h5 $1 {[%mdl 512]} gxh5 {Accuracy: White = 97%, Black = 98%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.2"]
[White "Tristan, Leonardo"]
[Black "Acosta, Pablo Ismael"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "2533"]
[BlackElo "2416"]
[Annotator "TA"]
[PlyCount "128"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,128,20,41,37,33,6,12,11,14,6,4,-10,-25,-13,-19,-22,-7,0,0,-191,-186,-195,-184,-194,-156,-161,-132,-146,-108,-118,-112,-111,-111,-506,-484,-498,-449,-478,-243,-243,-243,-231,-245,-253,-242,-249,-222,-206,-228,-305,-277,-393,-337,-426,-457,-450,-467,-414,-291,-269,-267,-244,-195,-302,-301,-540,-503,-762,-762,-762,-755,-742,-704,-658,-306,-306,-306,-306,-306,-877,-323,-966,-956,-947,-799,-954,-929,-900,-875,-843,-833,-816,-808,-974,-936,-4132,-2018,-7001,-5540,-29947,-6112,-29971,-29974,-29968,-29974,-29978,-29978,-29978,-29979,-29979,-29980,-29980,-29981,-29981,-29982,-29982,-29982,-29982,-29983,-29988,-29989]} 1. d4 e6 2. e4 d5 3. exd5 exd5 4. Nf3 Be7 5. Bd3 Bg4 6. h3 {C01: French: Exchange Variation.} Bh5 {[#]} 7. g4 $146 ({Predecessor:} 7. Bf4 Nf6 8. O-O O-O 9. Nbd2 c6 10. c3 Bd6 11. Bxd6 Qxd6 12. Qb3 Qc7 13. Rfe1 {0-1 (61) Mickunaite,A (1105)-Versekenaite,G (1308) Vilnius 2019}) 7... Bg6 8. Ne5 {The position is equal.} Nf6 9. Nc3 O-O 10. Nxg6 fxg6 11. g5 Nh5 12. Qg4 Bb4 13. O-O Nc6 14. f4 $2 (14. a3 $11 {and White stays safe.} Ba5 15. Rb1) 14... Nxd4 $19 15. f5 Qd6 16. Kg2 Rae8 (16... Nxf5 17. Rxf5 Bc5 18. Bd2 $15) 17. Bd2 {White wants to play Nb5.} Nxf5 18. Bxf5 Rxf5 19. Rxf5 gxf5 20. Qxh5 {[#]} Qc6 $1 21. Nb1 $2 {[%mdl 8192]} (21. Qf3 $17 d4 22. Qxc6 bxc6 23. Rf1 dxc3 24. bxc3 Re2+ 25. Rf2 Rxf2+ 26. Kxf2 Bc5+ 27. Kf3) 21... d4+ 22. Kf2 Bc5 23. b4 d3+ (23... Bb6 $142 {Threatens to win with ...d3+.} 24. Kg3 d3) 24. bxc5 {Hoping for Nc3.} Re2+ ({Worse is} 24... Qxc5+ 25. Kf1 $11) 25. Qxe2 dxe2 26. Nc3 Qxc5+ 27. Kxe2 Qe5+ 28. Kf3 Qh2 {[%mdl 1088] Double Attack. Black has strong compensation.} 29. Rd1 Qxh3+ 30. Kf4 (30. Kf2 {keeps fighting.}) 30... Kf7 31. Ke5 {[#]} b5 $1 {[%mdl 512]} 32. a3 (32. Nxb5 Qg3+) 32... a6 {[%cal Ba7a6,Ba6a5,Ba5b4][%mdl 32]} 33. Be1 Qh2+ 34. Kxf5 Qxc2+ 35. Kf4 Kg6 36. Ke3 (36. Rd5 {only move.}) 36... a5 ({Don't play} 36... Kxg5 37. Ne4+ Kg6 38. Rd3 $17) 37. Bd2 $2 (37. Rb1 c6 38. Bd2) 37... b4 38. axb4 (38. Rc1 $142 Qb3 39. axb4 axb4 {[%mdl 64] Pin} 40. Kd4 bxc3 41. Rxc3 Qb4+ 42. Kd3) 38... axb4 39. Rc1 Qb3 {[%mdl 64] Pin} 40. Ke4 Qe6+ 41. Kd3 c5 (41... Qd7+ $142 42. Ke2 bxc3 43. Rxc3 Qb5+ 44. Ke1 c5) 42. Ne4 Qb3+ ({Don't do} 42... Qd5+ 43. Ke3 $19) 43. Ke2 {[#]} c4 $1 {...Qd3+ is the strong threat.} 44. Nc3 $2 (44. Nc5 Qa2 45. Ne4) 44... Qa3 $2 (44... bxc3 45. Rxc3 Qb5) 45. Ke1 $2 (45. Nd1 Qd3+ 46. Ke1) 45... bxc3 46. Rxc3 {[%mdl 4096] Endgame KQ-KRB} Qe7+ 47. Kf2 Qd7 48. Ke2 Qg4+ 49. Kf2 Kf5 50. Rf3+ Ke4 51. Re3+ Kd5 52. Rc3 h5 53. gxh6 gxh6 54. Rg3 Qf5+ 55. Rf3 Qc2 {Black mates.} 56. Ke1 h5 57. Rh3 Qb1+ 58. Ke2 Qe4+ 59. Kf2 Qf5+ 60. Rf3 Qc2 61. Ke2 h4 62. Ke1 Qg6 63. Kf2 Qg4 64. Bf4 Ke4 {Accuracy: White = 50%, Black = 82%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.3"]
[White "Hoffman, Alejandro"]
[Black "Lima, Darcy"]
[Result "1/2-1/2"]
[ECO "A41"]
[WhiteElo "2472"]
[BlackElo "2526"]
[Annotator "TA"]
[PlyCount "27"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,27,31,38,25,47,41,35,0,0,0,0,0,0,0,0,0]} 1. d4 d6 2. e4 Nf6 3. f3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bc4 Ke8 7. Be3 Nbd7 8. a4 {B07: Pirc Defence: Miscellaneous Systems.} a5 9. Nd2 Bc5 10. Kf2 {White is slightly better.} Bxe3+ {The position is equal.} 11. Kxe3 Nc5 {[#]} 12. Nb3 $146 ({Predecessor:} 12. Ne2 Ke7 13. h3 c6 14. Rhd1 Nfd7 15. b3 Nb6 16. Ng3 Be6 17. Bxe6 Kxe6 18. f4 exf4+ 19. Kxf4 {1-0 (46) Rodriguez Vila,A (2522)-Saldano Dayer,H (2433) Buenos Aires 2010}) 12... Nfd7 13. Nxc5 Nxc5 14. Ne2 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.4"]
[White "Roselli Mailhe, Bernardo"]
[Black "Hungaski, Robert"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2433"]
[BlackElo "2504"]
[Annotator "TA"]
[PlyCount "43"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,43,0,0,0,0,0,6,4,8,4,4,0,0,0,8,0,0,0,8,11,17,17,17,-14]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 5. e3 a6 6. a4 c5 7. Bxc4 Nc6 8. O-O Qc7 9. Qe2 Be7 10. dxc5 Bxc5 11. Bd2 $1 {[%mdl 4] is more profitable than 11.e4.} O-O {The position is equal.} 12. Rfc1 {[#] D27: Queen's Gambit Accepted: Classical main line: 7 e4!? and 7 a4.} h6 $146 ({Predecessor:} 12... Rd8 13. Na2 Qe7 14. Rab1 a5 15. Bb5 Bd7 16. Qc4 Bd6 17. Qh4 Ne5 {½-½ (17) Galego,L (2487)-Lazarev,V (2417) Famalicao 2017}) 13. Bd3 Qe7 14. Ne4 Nxe4 15. Bxe4 Bd7 16. Qc4 Bd6 17. Bc3 Rfc8 18. Rd1 {[#] aiming for Qd3.} Be8 19. Qb3 a5 20. h3 Bc5 21. Rac1 Nb4 22. Bd4 {Accuracy: White = 89%, Black = 100%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.5"]
[White "Delgado Ramirez, Neuris"]
[Black "Muniz, Rafael"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2634"]
[BlackElo "2232"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,59,33,19,19,22,52,50,52,45,66,62,107,76,134,125,139,128,149,129,143,158,166,149,222,171,210,212,228,236,228,222,370,372,370,365,460,466,556,549,512,539,510,541,503,501,478,366,377,353,927,930]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Nb3 e6 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} 7. g4 d5 8. exd5 {[#]} Nxd5 $146 {White is slightly better.} ({Predecessor:} 8... Bb4 9. Bd2 Nxd5 10. Ne4 Be7 11. Qf3 O-O 12. O-O-O Qc7 13. Kb1 b5 14. Qg3 Qb6 {0-1 (46) Thavandiran,S (2375)-Paragua,M (2521) Philadelphia 2017}) 9. Nxd5 exd5 10. Bg2 Bd6 11. Qe2+ Be7 (11... Qe7 $142) 12. Be3 $16 Nc6 13. O-O-O O-O 14. Kb1 ({Resist} 14. Rxd5 $6 Qc7 $16) 14... a5 15. Bxd5 Qc7 16. Nd4 Nb4 (16... Bf6 $16 17. h3 Bxd4) 17. Bg2 $18 Bf6 18. a3 Nc6 19. Nb5 Qe7 20. h4 a4 (20... Re8 $142 21. g5 Be5) 21. g5 Be5 22. Rhe1 Be6 23. f4 Bb8 24. Qf2 Rd8 25. Rxd8+ Qxd8 26. Bb6 Qd7 27. f5 Bc4 28. Qd2 Qc8 29. Bd5 Ne5 $2 {[#]} (29... Bxd5 30. Qxd5 Bg3) 30. Bxb7 $1 {[%mdl 576] Double Attack. Black did not feel at home in the position after the opening. Accuracy: White = 96%, Black = 48%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.6"]
[White "Rodriguez Vila, Andres"]
[Black "Shtemler, Lavi"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2492"]
[BlackElo "2199"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,79,-14,-4,-15,35,-21,0,-16,-6,-2,0,8,39,29,68,6,69,62,73,63,66,31,25,35,40,45,44,29,31,19,22,6,102,90,122,59,67,82,110,58,134,141,131,106,102,97,138,92,97,89,92,0,56,52,115,106,106,110,105,99,151,143,471,404,549,536,746,742,737,721,1109,1105]} 1. e4 c5 2. Nc3 Nc6 3. Nge2 g6 4. d3 Bg7 5. Be3 d6 6. Qd2 {B23: Closed Sicilian: Lines without g3.} Rb8 7. h3 ({White should play} 7. d4 $14) 7... Qa5 8. g4 {The position is equal.} Nd4 {[#] aiming for ...Nf3+.} 9. Bg2 $146 ({Predecessor:} 9. Nxd4 cxd4 10. Nd5 Qd8 11. Bg5 f6 12. Bf4 e6 13. Qb4 exd5 14. Bxd6 Ra8 15. O-O-O Qb6 16. Qa3 Qa6 17. Qb4 Qb6 18. Qa3 Qa6 19. Qb4 Qb6 {½-½ (19) Muskardin,M (2248)-Yrjola,J (2366) Pula 2014}) 9... Nxe2 10. Kxe2 b5 11. a3 e6 12. f4 (12. d4 $14) 12... Ne7 (12... Qc7 $1 $11) 13. e5 $14 dxe5 14. Bxc5 Bb7 15. Ne4 Qxd2+ 16. Kxd2 Nc8 17. fxe5 Bxe5 {Black wants to play ...f5.} 18. d4 Bf4+ 19. Ke2 f5 20. Rhf1 $36 {[%mdl 2048] White has good play.} Bg5 (20... Bc7 $11 21. Nf6+ Kf7 22. Bxb7 Rxb7) 21. Nxg5 $16 Bxg2 22. Rf2 ({Reject} 22. Nxe6 $6 Bxf1+ 23. Rxf1 fxg4 $11) (22. Rfe1 $16) 22... Bd5 $14 23. Re1 a5 24. b3 (24. Kd2 $16 {Black must now prevent gxf5.} Kd7 25. Rfe2) 24... a4 ({Black should try} 24... h6 $14 25. Nf3 Nb6) 25. bxa4 $16 {And now Kd3 would win.} bxa4 26. Kd2 Kd7 27. Nf7 Re8 28. Ne5+ Kc7 29. Bb4 Nd6 {[#]} 30. Kc1 ({Better is} 30. Kd3 $1 $16) 30... Ne4 (30... Nc4 $11) 31. Rh2 Nd6 (31... Rbc8 $14) 32. c4 Be4 33. Rb2 Rg8 34. Ree2 Rb7 {[#]} (34... Nb7 $142 35. Kd2 Ra8) 35. c5 $1 {[%cal Rc5d6]} Nb5 $2 {[%mdl 8192]} (35... Nc8 $16 {is more resistant.} 36. Ba5+ Kb8 37. Nd7+ Ka7) 36. Ba5+ Kb8 37. c6 {White is clearly winning.} Rc8 {[#]} 38. Rxe4 $1 {[%mdl 512]} fxe4 39. Kd2 Nxd4 40. Nd7+ {Accuracy: White = 74%, Black = 38%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.7"]
[White "Diaz Hollemaert, Nahuel"]
[Black "Dominguez, Facundo"]
[Result "1/2-1/2"]
[ECO "A35"]
[WhiteElo "2450"]
[BlackElo "2135"]
[Annotator "TA"]
[PlyCount "99"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,99,36,17,31,16,93,57,53,49,76,73,74,75,77,37,34,-10,-8,-35,-16,-25,0,0,0,0,-4,-3,0,0,0,-11,0,-12,-3,-11,-11,-31,8,3,8,-62,-89,-71,-84,-120,-122,-157,-157,-171,-177,-211,-180,-181,-151,-257,-244,-221,-249,-227,-220,-186,-195,-164,-95,-79,0,0,0,0,24,3,64,8,8,8,14,0,0,0,8,-33]} 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 g6 6. Nc2 Bg7 7. g3 O-O 8. Bg2 d6 9. O-O Be6 10. b3 Qd7 11. Re1 Rfd8 {A38: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3 Nf6.} 12. e4 {[#]} Qe8 $146 (12... Bh3 $11 {keeps the balance.}) ({Predecessor:} 12... Ne5 13. Rb1 Bh3 14. Ne3 Nfg4 15. Ncd5 Bxg2 16. Kxg2 Nxe3+ 17. Bxe3 e6 18. Nf4 b5 19. Nd3 bxc4 20. Nxe5 Bxe5 21. bxc4 {½-½ (33) Arkell,K (2442)-Hebden,M (2427) South Normanton 2019}) 13. Bg5 h6 {White is slightly better.} 14. Bd2 Rac8 15. Rc1 Nd7 16. Nd5 Nc5 {Threatening ...Nd3.} 17. Be3 Ne5 18. Nf4 Bd7 19. Rb1 b6 20. f3 b5 21. cxb5 Bxb5 22. Nd4 Ba6 23. Bf1 Bxf1 24. Rxf1 Qd7 25. Qd2 Kh7 26. Rbd1 Qb7 27. Qa5 Rb8 28. Rf2 Nxe4 29. fxe4 {[#] Black must now prevent Qd5.} Ng4 $1 {[%cal Rg4e3]} 30. Ng2 ({White should play} 30. Re2 $11 e5 31. Nde6 fxe6 32. Nxe6) 30... Nxf2 $15 31. Bxf2 Qxe4 32. Re1 Qb7 33. h4 e5 $36 {[%mdl 2048] Black is really pushing.} 34. Ne2 d5 35. Nc3 f5 36. h5 g5 37. Qxa7 (37. Ne3 $17 {keeps fighting.} d4 {[%mdl 64] Double Attack} 38. Nxf5 dxc3 39. Nxg7 Qxg7 40. Qxc3) 37... d4 $19 38. Qxb7 Rxb7 39. Na4 e4 {[%mdl 1024] Black has strong compensation.} 40. Nc5 Re7 41. Rd1 Ra8 (41... Rc8 $19 42. b4 e3) 42. a4 $17 e3 (42... Rb8 $17) 43. Be1 $11 Rf8 44. Nd3 {Threatens to win with Bb4.} Rc7 45. a5 Rb8 ({Black should try} 45... f4 $11 46. gxf4 Kg8) 46. Bb4 (46. b4 $1 $14) 46... Rcb7 {The position is equal.} 47. Bc5 {And now b4 would win.} Rxb3 48. Nge1 Ra8 49. Bb6 Bf6 50. Nc5 {Accuracy: White = 65%, Black = 81%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.8"]
[White "Garcia Palermo, Carlos"]
[Black "Curi, Gabriel"]
[Result "1-0"]
[ECO "D11"]
[WhiteElo "2434"]
[BlackElo "2132"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,69,18,16,26,27,28,23,28,26,29,9,26,31,47,27,31,19,38,27,36,38,36,34,34,24,32,33,39,48,46,28,57,20,156,152,367,367,369,364,492,496,597,585,577,570,971,971,968,964,947,953,943,943]} 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. e3 e6 5. Bd3 Nbd7 6. Nbd2 Bd6 7. O-O O-O 8. e4 e5 9. cxd5 cxd5 10. Re1 h6 {D05: Colle System with ...e6.} 11. exd5 {[%cal Rd4e5]} exd4 12. Nc4 Nb6 {White has an edge.} 13. Nxd6 Qxd6 {[#]} 14. Be2 $146 ({Predecessor:} 14. Nxd4 Nbxd5 15. Bf1 Rd8 16. Nb5 Qb6 17. Qf3 Bd7 18. Nc3 Bc6 19. Nxd5 Rxd5 20. b3 Re5 21. Qc3 Ng4 22. Be3 Nxe3 23. Qxe5 {½-½ (23) Onischuk,A (2685)-Duda,J (2697) Khanty-Mansiysk 2017}) 14... d3 15. Qxd3 Qxd5 16. Qxd5 Nbxd5 17. Bd2 Ne4 18. Ba5 b6 19. Bc4 Nef6 20. Bd2 Bb7 21. Ne5 Rac8 22. f3 Rc7 23. b3 {[%cal Bb2b3,Bb3c4][%mdl 32]} Bc8 24. a4 Be6 25. g4 Nd7 {[#]} (25... Rd8 $11 {remains equal.}) 26. Ng6 $1 $16 {[%mdl 512] Strongly threatening Bxd5.} Rxc4 $2 (26... Rd8 $16) (26... fxg6 27. Rxe6) 27. bxc4 $18 fxg6 28. Rxe6 Nf4 29. Re7 {White is clearly winning.} Nc5 30. Bxf4 Rxf4 31. a5 Nb3 {[#]} 32. axb6 $1 {[%mdl 512]} axb6 33. Ra8+ Rf8 34. Raa7 Rxf3 35. Rxg7+ {[%mdl 64] Double Attack. Accuracy: White = 95%, Black = 59%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.9"]
[White "Soto, Nicolas"]
[Black "Liascovich, Lucas"]
[Result "0-1"]
[ECO "C60"]
[WhiteElo "2002"]
[BlackElo "2425"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,52,7,13,23,12,22,2,29,8,8,-14,-14,-11,-12,-43,-45,-60,-52,-84,-74,-85,-89,-144,-141,-127,-138,-305,-308,-541,-527,-550,-546,-736,-659,-651,-687,-676,-630,-1072,-1016]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 a6 6. Ba4 Nge7 7. d3 O-O 8. Nbd2 d6 {C60: Ruy Lopez: Unusual Black 3rd moves and 3...g6.} 9. Re1 h6 10. Nf1 f5 {The position is equal.} 11. h3 {[#]} Kh8 $146 ({Predecessor:} 11... f4 12. d4 Kh7 13. dxe5 Nxe5 14. Nxe5 Bxe5 15. Nh2 g5 16. Bd2 Ng6 17. b4 Qf6 {0-1 (32) Renteria Becerra,J (2264)-Campos Moreno,J (2412) Castell de Sant Ferran 2016}) 12. N3h2 f4 13. Nf3 g5 $36 {[%mdl 2048] Black has some pressure.} 14. N1h2 Qe8 $1 15. d4 Qg6 16. dxe5 dxe5 17. Qe2 h5 18. Bc2 ({White should play} 18. g4) 18... Bf6 19. Kh1 g4 20. Nd4 $2 (20. Nd2 $17) 20... gxh3 $19 {[%csl Gh3][%cal Rg6g2] [#]} ({Don't do} 20... exd4 21. e5 $19) 21. g3 $2 (21. Rg1 Rg8 22. g4 hxg4 23. Nxc6 Nxc6 24. Bd2) 21... fxg3 {Black is clearly winning.} 22. fxg3 exd4 23. e5 Bf5 24. exf6 d3 25. Qf3 {[#]} Rxf6 {Played: d3-d2} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.10"]
[White "Mussanti, Diego"]
[Black "Munoz Perez, Rolando"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "2330"]
[BlackElo "2130"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,52,10,10,10,10,1,5,5,12,11,-32,13,15,22,18,8,0,2,-56,2,0,4,-14,0,-13,13,-15,0,-11,-18,-226,-210,-682,-676,-662,-668]} 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. O-O O-O 7. Re1 c6 8. a4 b6 9. d5 cxd5 10. Nxd5 Nxd5 {C41: Philidor Defence.} 11. Bxd5 Rb8 12. b3 Nf6 {The position is equal.} 13. Bc4 Bb7 14. Qd3 Qc7 (14... Nxe4 $5 15. Rxe4 d5 16. Rxe5 dxc4 {[%mdl 64] Discovered Attack} 17. Qxd8 Bxd8 $15) 15. Bg5 Nh5 16. Bxe7 Qxe7 17. g3 Nf6 18. a5 (18. Nd2 $11) 18... Bc6 ({Black should try} 18... b5 $15 19. Bd5 Bxd5 20. exd5 Qc7) 19. axb6 $11 axb6 20. b4 g6 21. Nd2 Kg7 22. Ra6 Qc7 23. f3 Rfd8 24. Qc3 $2 {[#]} (24. Qe3 $11) 24... Bb5 $1 $19 {[%cal Rb5a6][%mdl 576] Pin} 25. Qb3 $2 (25. Ra7 Qxa7 26. Bxb5) (25. Bxb5 Qxc3) 25... Bxa6 26. Bxa6 b5 {Accuracy: White = 52%, Black = 80%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.11"]
[White "De Dovitiis, Alejo"]
[Black "Guerrero, Alvaro"]
[Result "0-1"]
[ECO "B14"]
[WhiteElo "2314"]
[BlackElo "2094"]
[Annotator "TA"]
[PlyCount "34"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,34,9,14,9,47,22,43,39,38,42,54,12,9,4,22,21,20,0,0,-734,-730]} 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 6. cxd5 Bg7 7. Bb5+ Nbd7 {[%cal Bb8d7,Bd7b6,Bb6c4][%mdl 32]} 8. d6 O-O 9. dxe7 {B14: Caro-Kann: Panov-Botvinnik Attack with 5...e6 and 5...g6.} Re8 10. Nge2 (10. Nf3 {is more complex.} Rxe7+ 11. Be2 Nb6 12. O-O Be6 13. Re1) 10... Rxe7 11. O-O {White is slightly better.} Nb6 12. Bg5 {[#]} h6 $146 ({Predecessor:} 12... a6 13. Bd3 h6 14. Bh4 Be6 15. Re1 Rd7 16. Qc2 Rc8 17. a3 Nbd5 18. Rad1 b5 {½-½ (41) Vavra,P (2390)-Mitura,V (2235) Czechia 1994}) 13. Bxf6 Bxf6 14. h3 Bd7 15. Bxd7 Rxd7 16. Qd2 Nc4 17. Qxh6 $2 {[%mdl 8192] [#]} (17. Qc2 $11) 17... Bg5 $1 {Accuracy: White = 72%, Black = 100%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.12"]
[White "Siddeley, Hugh"]
[Black "Lopez Azambuja, Nicolas"]
[Result "0-1"]
[ECO "A45"]
[WhiteElo "1974"]
[BlackElo "2310"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,78,-22,4,4,4,0,4,7,25,-7,7,1,6,4,13,15,39,35,47,28,15,13,26,47,28,0,7,0,0,0,-6,-2,-8,-7,0,0,0,-9,-8,-8,6,-37,20,-11,-4,-16,-7,-24,0,0,0,-11,1,-25,-19,-37,-35,-27,-33,-120,-121,-149,-144,-148,-152,-222,-227,-331,-332,-573,-559]} 1. d4 Nf6 2. Bf4 c5 3. e3 Nd5 4. dxc5 Nxf4 5. exf4 Qa5+ 6. c3 {A45: Trompowsky Attack.} Qxc5 {[#]} 7. Nd2 $146 ({Predecessor:} 7. Nf3 Nc6 8. Nbd2 Qf5 9. g3 b6 10. Be2 g6 11. O-O Bg7 12. Nb3 O-O 13. Nbd4 Nxd4 14. Nxd4 {0-1 (75) Ferry,R (2029)-Giffard,N (2350) Issy les Moulineaux 2013}) 7... Qc7 8. g3 {The position is equal.} d6 9. Bd3 g6 10. h4 Bg7 11. h5 Nd7 12. h6 Bf8 13. Ngf3 Nf6 14. Qa4+ Bd7 15. Qd4 Qb6 16. Qxb6 axb6 {[%cal Ba7b6,Bb6b5][%mdl 32]} 17. Nc4 Bc6 18. Ke2 b5 19. Na3 {[%cal Bc4a3,Ba3c2,Bc2e3][%mdl 32]} Ra5 {White should prevent ...e5!} 20. Rh4 Nd5 21. Nc2 e6 22. a3 Be7 23. Rh2 O-O 24. Rd1 Rd8 25. Ne3 Bf6 ({Black should play} 25... Nb6 $15) 26. Bc2 Nb6 27. Bb3 Na4 28. Rd2 Nc5 29. Bc2 Raa8 30. Nd4 Be8 31. Nb3 Na4 $36 {[%mdl 2048] Black fights for an advantage.} 32. Be4 Bc6 33. f3 Nb6 34. g4 ({Better is} 34. Nd4 $15) 34... Nc4 $17 35. Rc2 d5 36. Bd3 e5 37. fxe5 (37. g5 $17 Re8 38. Nxc4 bxc4 39. gxf6) 37... Bxe5 $19 38. Rh3 (38. Rg2 {was worth a try.}) 38... Re8 {aiming for ...Bf4.} 39. Bxc4 $2 {[#]} (39. Kf2 {was necessary.} Nxe3 40. Kxe3) 39... Bf4 {[%mdl 64] Discovered Attack. Accuracy: White = 65%, Black = 97%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.13"]
[White "Meza, Anahi"]
[Black "Coppola, Claudio"]
[Result "1/2-1/2"]
[ECO "A58"]
[WhiteElo "2046"]
[BlackElo "2314"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,78,48,14,41,-22,30,47,37,44,58,41,34,-3,-5,-6,-4,-5,41,0,0,0,0,0,83,-26,0,0,0,-7,-6,-39,-16,-28,-17,-16,-17,-28,-6,-6,-6,-6,0,0,0,0,0,0,0,0,6,6,9,0,1,1,6,6,8,6,6]} 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6 6. Nc3 Bxa6 7. Nf3 Bg7 8. g3 d6 9. Bg2 Nbd7 {[%cal Bb8d7,Bd7b6,Bb6d5,Bd5c3,Bc3e2][%mdl 32]} 10. O-O Nb6 11. Rb1 Bc4 {[%cal Rf6d5] A58: Benko/Volga Gambit: Lines with 5 bxa6.} 12. b4 ({Better is} 12. Ng5 $14) 12... Nfxd5 (12... Nbxd5 $142 13. Nxd5 Bxd5) 13. Nxd5 $11 Nxd5 {White is slightly better.} 14. Bb2 $1 {[%cal Rb2g7]} Bxb2 15. Rxb2 {[#]} Nc3 $146 ({Predecessor:} 15... Nxb4 16. Rxb4 cxb4 17. Qd4 O-O 18. Qxc4 Qc8 19. Qxb4 Rxa2 20. e3 Qc7 21. Qh4 Kg7 {½-½ (60) Poliakov,S (2314)-Obodchuk,A (2402) Orsk 2000}) 16. Qa1 O-O $36 {[%mdl 2048] aiming for ...cxb4. Black has the initiative.} ({But not} 16... Bxe2 $2 17. Rc1 $18) 17. bxc5 $1 Nxe2+ 18. Kh1 dxc5 19. Ne5 (19. Re1 $5 {[%cal Rf3e5]}) 19... Ba6 20. Nc6 Qd6 21. Re1 Rac8 {[#]} (21... Nd4 $11 22. Nxe7+ {[%mdl 64] Discovered Attack} Kg7) 22. Rb6 (22. Rd2 $1 $16 {[%cal Rd2d6][%mdl 512]} Rxc6 (22... Qxd2 23. Nxe7#) 23. Rxd6 Rxd6 24. h4) 22... Bc4 23. Qb2 {Na5 is the strong threat.} Bd5 $1 {[%cal Rd5g2]} 24. Nxe7+ Qxe7 25. Qxe2 (25. Rxe2 {feels hotter.} Qg5 26. Rd6 Be6 27. h4 Qe7 28. Rdd2) 25... Qa7 (25... Qxe2 {seems wilder.} 26. Rxe2 Be6 27. a4 Rfd8 28. Re1 c4) 26. Qa6 Qxa6 27. Rxa6 Bc4 28. Ra3 Rfe8 29. Rc1 {The position is equal.} Be6 30. Bf1 Red8 31. Bc4 Rd2 32. Bxe6 fxe6 {[%mdl 4096] Endgame KRR-KRR} 33. Kg2 Rc7 34. Rac3 Rd5 35. a4 Kf7 36. Rb3 Ke7 37. a5 Ra7 38. Rb5 c4 39. Rb4 Rdxa5 {Accuracy: White = 78%, Black = 84%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.14"]
[White "El Ters, Antouan"]
[Black "Menna Barreto, Felipe Kubiaki"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2189"]
[BlackElo "2395"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,104,-62,-70,-62,-50,-50,35,27,89,33,37,39,32,0,110,93,86,87,106,76,80,80,106,22,70,28,20,8,5,5,7,0,0,0,0,0,0,0,0,0,12,0,133,127,131,104,233,218,226,215,249,83,64,50,56,59,88,60,58,44,33,35,27,0,40,46,26,0,0,0,8,8,12,0,0,0,0,0,0,0,14,8,10,10,10,10,14,8,8,8,8,8,8,8,10,0,0]} 1. Nf3 Nf6 2. b3 d6 3. Bb2 e5 {[#]} 4. Nc3 $146 ({Predecessor:} 4. e3 Nbd7 5. c4 g6 6. d4 Bg7 7. dxe5 Ng4 8. Be2 Ngxe5 9. Nxe5 Nxe5 10. Qd2 O-O 11. O-O Re8 12. Nc3 {1-0 (57) Nakamura,H (2763)-Jones,G (2677) chess.com INT 2018}) 4... e4 5. Ng5 d5 6. e3 {A05: Réti Opening: 1 Nf3 Nf6.} h6 (6... Nc6 {keeps more tension.} 7. Bb5 Qd6 8. f3 h6 9. Nh3 Bxh3 10. Bxc6+ Qxc6 11. gxh3 O-O-O) 7. Nh3 c5 (7... c6 $15) 8. d3 $14 {White is slightly better.} Qa5 (8... Nc6 $11 {keeps the balance.}) 9. Qd2 (9. dxe4 $16 {Threatens to win with e5.} dxe4 10. Nf4) 9... Bxh3 10. gxh3 {Hoping for dxe4.} Nc6 11. dxe4 dxe4 (11... d4 $11) 12. O-O-O Rd8 13. Qe2 Bd6 14. Qb5 Qxb5 15. Nxb5 Bb8 16. Rg1 ({White should play} 16. Bg2 $16) 16... Rxd1+ $11 17. Kxd1 Kf8 18. Bg2 a6 19. Nc3 Bxh2 20. Rh1 Be5 21. Kc1 Bxc3 22. Bxc3 Nd5 23. Bb2 $36 {[%mdl 2048] White is more active.} f5 24. Rd1 Nf6 25. Ba3 Nb4 (25... Kf7 $11 {remains equal.}) 26. Rd8+ $16 Ne8 27. Rb8 Nxa2+ (27... h5 $16 {keeps fighting.}) 28. Kd2 $18 Nb4 29. Rxb7 h5 {[#] and the idea ...Rh6 leaves Black hopeful.} 30. Bxb4 $2 (30. c3 $1 $18 {[%cal Rc3b4] and the rest is easy.} Nc6 31. Bxc5+ Kg8 32. Bf1) 30... cxb4 $16 31. Rxb4 $18 {[%mdl 4096] Endgame KRB-KRN} Rh6 32. Bf1 Nc7 33. Rc4 Rd6+ 34. Ke1 (34. Kc1 $5 {[%cal Rc4c7]} Ne6 35. Ra4 $14) 34... Ne6 35. h4 g5 36. Bh3 Rd5 37. Rc6 Ke7 38. Rxa6 (38. Bf1 $5 {[%cal Rf1c4]} gxh4 39. Rxa6 $11) 38... gxh4 {The position is equal.} 39. c4 Rd3 40. Bxf5 Ng5 $1 {[#] White must now prevent ...h3.} 41. f4 Nf3+ 42. Ke2 Rd2+ 43. Kf1 Rb2 44. Rh6 Rxb3 45. Rxh5 Rxe3 46. Kf2 Rc3 47. Bxe4 Nd2 48. Bg2 (48. Bb7 {looks sharper.} Rxc4 49. Rxh4 Kf6 50. Bd5 Rc5 51. Bc6) 48... Nxc4 49. Rxh4 Rc2+ 50. Kf3 Rc3+ 51. Ke4 Nd6+ 52. Kd5 Rd3+ {Accuracy: White = 70%, Black = 72%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.15"]
[White "Benoit, Rodrigo"]
[Black "Vitoux, Colomban"]
[Result "1/2-1/2"]
[ECO "B02"]
[WhiteElo "2170"]
[BlackElo "2377"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,78,32,33,12,11,16,18,21,31,24,20,12,39,24,41,29,46,36,20,22,44,47,65,66,65,8,12,13,26,22,45,44,47,17,70,41,49,21,94,101,90,96,92,99,107,103,92,100,93,85,91,85,91,91,91,91,85,89,143,77,102,29,29,29,29,29,29,25,29,29,82]} 1. e4 Nf6 2. e5 Ng8 3. Nf3 d6 4. exd6 cxd6 5. d4 Nf6 6. Bd3 {B02: Alekhine's Defence: Chase Variation and lines with early Nc3.} g6 7. O-O Bg7 8. Re1 {The position is equal.} O-O 9. c3 Nc6 10. Bg5 {[#]} Rb8 $146 ({Predecessor:} 10... Re8 11. Nbd2 h6 12. Bxf6 Bxf6 13. Nc4 Bg7 14. a4 b6 15. h4 e6 16. d5 Ne7 17. dxe6 Bxe6 {½-½ (64) Alvarado Diaz,A (2380)-Sumets,A (2585) Llucmajor 2019}) 11. Nbd2 b5 12. h3 Re8 13. Ne4 Nxe4 14. Bxe4 d5 15. Bc2 b4 16. Ba4 $36 {[%mdl 2048] White is pushing.} Bd7 17. Bb3 (17. Rc1 $14) 17... bxc3 $11 18. bxc3 Qa5 19. Qd2 Rbc8 20. Rac1 Bf5 21. Bf4 Qb5 (21... Be4 $11) 22. Qd1 (22. c4 $5 {[%cal Rc4b5]} Qb4 23. cxd5 Qxd2 24. Bxd2 (24. Nxd2 Nxd4 25. Rxc8 Rxc8 $16) 24... Nxd4 25. Rxc8 Bxc8 26. Nxd4 Bxd4 27. Ba4 $16) 22... Red8 23. Re3 Kf8 (23... h6 $11 {remains equal.}) 24. g4 $16 Be4 25. Ng5 e5 26. dxe5 Nxe5 27. Bxe5 Bxe5 {[#]} 28. Nxf7 $1 {[%mdl 512]} Kxf7 29. Rxe4 $1 Bf6 30. Qf3 Kg7 31. Re6 Rf8 32. Qxd5 Qxd5 33. Bxd5 Rfd8 {[#]} (33... Rxc3 $142 34. Rxc3 Bxc3) 34. Bb3 (34. Rb1 $142 $1) 34... Rd3 35. Re3 ({Better is} 35. c4 $16) 35... Rxe3 $11 {White has an edge.} 36. fxe3 Rxc3 37. Rxc3 Bxc3 38. Kg2 Kf6 39. h4 Ke5 {Accuracy: White = 77%, Black = 77%.} (39... h6 $11) 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.16"]
[White "Torella, Rodolfo"]
[Black "Michailov, Matias"]
[Result "1/2-1/2"]
[ECO "B54"]
[WhiteElo "2081"]
[BlackElo "2262"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,77,16,30,25,20,-66,9,18,87,84,97,49,57,64,54,54,97,94,118,112,114,79,99,54,91,28,23,0,0,11,0,0,0,-11,-18,-71,68,-24,-28,-325,-210,-573,-558,-505,-198,-184,-174,-270,-264,-314,-107,-90,0,-1044,-189,-364,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Nb3 Be6 7. c4 Nbd7 (7... Nxe4 $6 8. fxe4 Qh4+ 9. Kd2 $16) 8. Nc3 {B55: Sicilian: 2...d6 3 d4 cxd4 4 Nxd4 Nf6 5 f3.} Rc8 9. Nd5 {was the old line (9.Be3).} (9. Be3 $11) 9... Bxd5 (9... b5 $1 $15 10. cxb5 Nxe4) 10. cxd5 $11 {[#]} h5 $146 (10... Nxe4 $11 {keeps the balance.} 11. fxe4 Qh4+ {[%mdl 64] Double Attack} 12. Kd2 Qxe4) ({Predecessor:} 10... g6 11. Be3 a6 12. Qd2 Bg7 13. Be2 O-O 14. O-O Nh5 15. Rac1 Rxc1 16. Rxc1 f5 {0-1 (60) Fernandez Vallejo,L (2063)-Nordquelle,D (2235) Lisbon 2019}) 11. Be3 $16 h4 12. Bd3 (12. Bxa7 b6 $17) 12... Nh5 13. O-O ({Weaker is} 13. Bxa7 b6 $17) 13... Be7 14. Qd2 O-O 15. Rfc1 (15. Bxa7 $2 b6 $17) 15... Rxc1+ 16. Rxc1 Qb8 17. Qc2 Bd8 18. Bb5 Nb6 19. a4 (19. Qd2 $16) 19... a6 $11 20. a5 Nxd5 $1 21. exd5 {Strongly threatening Bf1.} axb5 22. Qd3 Nf4 $36 {[%mdl 2048] Black fights for an advantage.} 23. Qxb5 {And now a6 would win.} Bg5 {Threatens to win with ...Nh3+!} 24. Kf1 {[#]} (24. Rc3 $11) 24... e4 ({Black should try} 24... Qd8 $1 $17 {...Nxg2! is the strong threat.} 25. Rc3 Qe7) 25. fxe4 ({White should play} 25. Rc4 $1 $14 Qd8 26. Rxe4) 25... Qd8 $1 {[%cal Rd8f6] Hoping for ...Qf6.} 26. Nd2 $2 {[%mdl 8192] [#]} (26. Rc3 $11 {and White stays safe.}) 26... Nxg2 $1 {[%mdl 512]} 27. Bxg5 $2 (27. Bb6 {nothing else works.} Qf6+ 28. Kxg2 Bxd2 29. Rf1 Qg6+ {[%mdl 64] Double Attack} 30. Kh3) (27. Kxg2 Bxe3) 27... Qxg5 $19 28. Qe2 Ne3+ $2 (28... Nf4 29. Qf3 f5) 29. Kf2 Ng4+ 30. Ke1 (30. Kg1 $142) 30... Re8 31. Rc7 Nf6 $2 (31... f5 $19 {and Black stays clearly on top. White must now prevent ...fxe4.} 32. Rc3 (32. Rxb7 $2 Rc8 $19) 32... fxe4) 32. Rxb7 $17 Nxd5 (32... Qg1+ $17 33. Qf1 Qg6) 33. Kd1 $2 {[%mdl 8192]} (33. Rb5 $11 Qg1+ 34. Qf1) 33... Nf4 $2 (33... Ne3+ 34. Kc1 Qg1+ 35. Nf1 Nxf1) 34. Qb5 $2 (34. Qe3 d5 35. Rb4) 34... Qg1+ $2 (34... Qg4+ $19 35. Kc2 Rc8+ 36. Nc4 Qf3) 35. Qf1 $11 {The position is equal.} Qg4+ ({But not} 35... Qxh2 $6 36. a6 $16) 36. Qf3 Qg1+ {[%mdl 64] Double Attack} 37. Qf1 Qg4+ $1 ({Of course not} 37... Qxh2 $6 38. a6 $16) 38. Qf3 Qg1+ {[%mdl 64] Double Attack} 39. Qf1 {Accuracy: White = 37%, Black = 47%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.17"]
[White "Amura, Claudia"]
[Black "Trois, Francisco R.T."]
[Result "1/2-1/2"]
[ECO "E73"]
[WhiteElo "2245"]
[BlackElo "2141"]
[Annotator "TA"]
[PlyCount "32"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,32,41,31,49,44,48,44,48,57,46,53,46,62,102,61,51]} 1. d4 d6 2. c4 Nf6 3. Nc3 g6 4. e4 Bg7 5. Be2 O-O 6. Bg5 c5 7. d5 a6 8. a4 Qa5 9. Bd2 e6 10. Nf3 Re8 {E74: King's Indian: Averbakh Variation: 6...c5.} 11. O-O exd5 12. exd5 Bg4 13. h3 {[#] Strongly threatening Ne4!} Bxf3 14. Bxf3 Qc7 15. Qc2 {[#]} h5 $146 ({Predecessor:} 15... Nbd7 16. Rfe1 h6 17. Rxe8+ Rxe8 18. Re1 Qb8 19. b3 Nh7 20. Rxe8+ Qxe8 21. Qe4 Qd8 22. Bd1 Kf8 23. Bc2 Qe7 24. Qxe7+ Kxe7 {½-½ (35) Flumbort,A (2448)-Ghaem Maghami,E (2603) Lausanne 2005}) 16. g3 Nbd7 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.18"]
[White "Dotta, Gian Franco"]
[Black "Larrea, Manuel"]
[Result "0-1"]
[ECO "B63"]
[WhiteElo "2000"]
[BlackElo "2243"]
[Annotator "TA"]
[PlyCount "100"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,100,37,31,17,11,33,41,13,16,16,45,0,74,65,128,129,110,76,82,58,44,54,39,-39,-33,-43,-17,-15,0,0,37,36,98,0,0,-8,-17,-141,-122,-139,-139,-139,-139,-139,-139,-144,-148,-165,-173,-179,-96,-158,-91,-108,-100,-104,-87,-90,-90,-191,-189,-314,0,-60,0,-2292,-2120,-2048,-1906,-29973,-29972,-29974,-29975,-29974,-29975,-29969,-29969,-12842,-5114]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O a6 9. f4 Nxd4 10. Qxd4 b5 11. Bxf6 gxf6 12. e5 d5 13. Be2 {B66: Sicilian: Richter-Rauzer: 7...a6 8 0-0-0 h6.} f5 {[#]} 14. Bf3 $146 ({Predecessor:} 14. g4 b4 15. Na4 Qa5 16. b3 fxg4 17. Bxg4 h5 18. Bh3 Bd7 19. f5 Rc8 20. fxe6 Bxe6 {½-½ (59) Tukhaev,A (2516)-Can,E (2471) Ankara 2009}) 14... Bb7 15. g4 {White is slightly better.} fxg4 16. Bxg4 Rc8 {[#] White must now prevent ...Rc4.} 17. Qd3 Rc4 (17... d4 $11 {remains equal.} 18. Ne4 Qd5) 18. Rhf1 $16 Bc5 (18... h5 $14 19. Bh3 b4) 19. Qh3 b4 20. Na4 Ba7 21. Be2 Re4 22. Bd3 Re3 23. Rf3 (23. Qg4 $14) 23... Rxf3 $15 24. Qxf3 Bc6 25. b3 Bxa4 26. bxa4 Qh4 27. f5 Qxh2 ({Black should try} 27... Bd4 $14) 28. Bxa6 (28. fxe6 $16 Qh6+ 29. Kb1 fxe6 30. Bxa6) 28... Qxe5 $11 29. Bb5+ Ke7 {...Qe3+ is the strong threat.} 30. fxe6 {[#]} (30. Kb1 $1 $11 {was the only way to keep the balance.}) 30... Qe3+ $1 $17 ({Not} 30... Kxe6 31. Kb1 $14) 31. Qxe3 Bxe3+ {[%mdl 4096] Endgame KRB-KRB} 32. Kb2 fxe6 33. Kb3 Bc5 34. a5 h5 35. Rh1 h4 36. Rh3 Kf6 ({Black should play} 36... Kd6 $19 37. a6 e5) 37. Ka4 (37. Rf3+ $142 Ke7 38. Rh3) 37... Kg5 ({Better is} 37... e5 38. a6 Ke7) 38. Bd7 Rh6 {Threatens to win with ...Kg4.} 39. Kb5 Bg1 40. Rh1 Be3 41. Re1 (41. a6 $17) 41... Kf4 $19 {aiming for ...h3.} 42. a6 (42. Rh1 $142) 42... e5 $2 (42... h3 $19 {Hoping for ...h2.} 43. Rh1 Kg3) 43. Bc6 (43. Rf1+ $1 $11 Kg3 44. Bc6) 43... Rd6 (43... e4 $15 44. Bxd5 h3) 44. Rxe3 $4 {[%mdl 8192]} (44. Rf1+ $11 Kg4 45. Rf7) 44... Kxe3 $11 {KR-KB} 45. a7 Rd8 46. a8=Q Rxa8 47. Bxa8 Kd4 48. Kxb4 h3 49. c3+ Ke3 50. Bxd5 e4 {Accuracy: White = 51%, Black = 61%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.19"]
[White "Carbone, Diego"]
[Black "Pichuaga, Juan Pablo"]
[Result "1/2-1/2"]
[ECO "A40"]
[WhiteElo "2239"]
[BlackElo "2030"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,70,26,17,56,53,60,47,58,55,49,49,67,68,67,67,71,69,74,70,95,85,91,67,58,67,126,98,100,80,87,58,58,57,75,46,47,52,48,0,16,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 e6 2. c4 d5 3. Nf3 Nf6 4. g3 Bb4+ 5. Bd2 Bxd2+ 6. Nbxd2 O-O 7. Bg2 Ne4 {E11: Bogo-Indian.} 8. O-O Nxd2 9. Nxd2 {[#]} Nd7 $146 {White is slightly better.} ({Predecessor:} 9... c6 10. e4 Qb6 11. cxd5 Qxd4 12. Qc2 exd5 13. exd5 cxd5 14. Nb3 Qc4 15. Qxc4 dxc4 {1-0 (78) Dudin,D (2165)-Gagarkine,N (1987) Saratov 2008}) 10. Qc2 c6 11. e4 dxe4 12. Nxe4 Nf6 13. Rad1 Nxe4 14. Bxe4 g6 15. Rfe1 Qc7 16. h4 Bd7 17. h5 {[%cal Rh5g6]} f5 18. Bf3 g5 (18... f4 $14) 19. Re5 g4 20. Be2 Rf6 21. c5 Raf8 22. Qd2 Qd8 23. Qf4 Qe8 24. Qg5+ Kh8 25. Bc4 Qf7 {The position is equal.} 26. Rde1 Rg8 27. Qe3 {[%cal Rc4e6]} Qxh5 28. Bxe6 Rh6 {[%csl Gh6][%cal Rh5h1] [#]} 29. Kf1 Bxe6 30. Rxe6 Rxe6 31. Qxe6 $11 {aiming for Qf6+. KQR-KQR} Qh1+ 32. Ke2 Qf3+ 33. Kf1 {[#] White threatens Qf6+ and mate.} Qh1+ $1 34. Ke2 Qf3+ 35. Kf1 {Threatening mate with Qf6+.} Qh1+ $1 {Accuracy: White = 74%, Black = 89%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.20"]
[White "Contin, Daniel"]
[Black "Suarez, Pedro"]
[Result "1/2-1/2"]
[ECO "A25"]
[WhiteElo "2267"]
[BlackElo "2063"]
[Annotator "TA"]
[PlyCount "128"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,128,29,19,19,9,5,-28,0,-5,0,-48,-33,-50,0,5,0,-35,-30,-58,-50,-45,-59,-67,-64,-75,-56,-64,-45,-92,-26,-74,-84,-276,-77,-94,-65,-82,0,-79,-58,-31,-6,-72,-70,-120,-121,-225,-208,-214,-224,-296,-230,-346,-134,-332,-325,-475,-173,-267,-256,-260,-237,-290,-164,-120,0,0,0,0,0,0,0,0,0,-1,-10,-69,-40,-704,-675,-1038,-1015,-4647,-2578,-12794,-879,-3096,-2729,-637,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 e5 2. Nc3 Nc6 3. g3 d6 4. Bg2 Be6 5. d3 Qd7 6. Rb1 g6 7. b4 Bg7 8. Nd5 Nd8 {A25: English Opening vs King's Indian with ...Nc6 but without early d3.} 9. e4 c6 10. h3 {[#]} f6 $146 {Black has an edge.} ({Predecessor:} 10... f5 11. exf5 gxf5 12. Nc3 Ne7 13. Nge2 O-O 14. f4 Ng6 15. O-O Nf7 16. b5 exf4 17. bxc6 bxc6 18. Bxf4 Nxf4 19. Rxf4 {1-0 (33) Grigorian,K (2405)-Mnatsakanian,E (2430) Yerevan 1986}) 11. Nc3 Ne7 12. Qa4 O-O 13. b5 Nf7 (13... b6 $15) 14. Nge2 $11 f5 15. h4 f4 16. gxf4 exf4 17. Bxf4 Ne5 18. Qc2 Bg4 19. Be3 Bf3 20. Bxf3 Nxf3+ 21. Kd1 Qg4 (21... d5 $1 $17 {[%cal Rd5d4] ...d4 is the strong threat.} 22. bxc6 bxc6 23. cxd5 cxd5 24. Nxd5 Nxd5 25. exd5 Rac8) 22. Qb3 c5 {[%mdl 1024] Black has strong compensation.} 23. Kc2 $2 (23. Kc1 $17) 23... Rf7 $2 (23... Nd4+ $1 $19 {is more deadly.} 24. Nxd4 cxd4) 24. Qa4 Nd4+ {[%mdl 64] Discovered Attack} 25. Kd2 $1 Nf3+ (25... a6 $1 $17) 26. Kc1 (26. Kc2 $11 {was the only way to keep the balance.}) 26... Raf8 27. Qd1 h5 28. Kb2 (28. Qf1 $11) 28... Nd4 $17 29. Ka3 a6 $1 30. Bxd4 (30. b6 $17) 30... cxd4 $19 31. Nd5 Nxd5 32. exd5 Rxf2 33. Nc1 (33. bxa6 $142 Ra8 34. Re1) 33... Qc8 $2 (33... axb5 $1 $19 {has better winning chances.} 34. Qxg4 hxg4) 34. Qa4 $2 {[#]} (34. Qe1 $17) 34... axb5 $1 35. Qxb5 (35. Rxb5 {was the only defense.} Qg4 36. Nb3) 35... b6 $2 (35... Bh6 36. Qa5 Rc2) 36. Qc6 (36. Rb2 {was called for.}) 36... Qa6+ 37. Qa4 {[#]} Qb7 $1 38. Re1 Ra8 (38... Bh6 $142 39. Re8 Rxe8 40. Qxe8+ Kh7) 39. Re8+ Rf8 (39... Rxe8 $17 40. Qxe8+ Kh7) 40. Qxa8 $1 $11 Qxa8+ 41. Rxa8 Rxa8+ {[%mdl 4096] Endgame KRB-KRN} 42. Kb4 Bf6 43. Kb5 Bxh4 44. Kc6 Bg3 45. Rxb6 (45. Ne2 $11 Be5 46. Ng1) 45... h4 46. Kb7 $2 {[%mdl 8192]} (46. Ne2 $15 Be5 47. Ng1) 46... Re8 $19 47. c5 h3 {White must now prevent ...h2.} 48. Ne2 Rxe2 {KRB-KR} 49. c6 Re7+ 50. c7 h2 51. Rb1 Bf2 $2 (51... Be1 $19 52. Rxe1 Rxe1 53. c8=Q+ Kf7) 52. Rh1 $1 $11 {[%cal Rh1h2] The position is equal.} Bg1 {aiming for ...g5.} 53. a4 $1 {[%cal Ra4a5]} g5 54. a5 {Strongly threatening a6.} g4 55. a6 {Hoping for a7.} g3 56. a7 Rxc7+ 57. Kxc7 {KR-KB} g2 (57... Kf7 $5 58. a8=Q $8 g2 $11) 58. a8=Q+ Kg7 (58... Kf7 $5 59. Qc8 $8 (59. Rxh2 $2 Bxh2 60. Kd7 g1=Q $19) 59... gxh1=Q 60. Qf5+ Kg8 61. Qg5+ Kh8 62. Qh6+ Kg8 63. Qg5+ Kh7 64. Qh5+ Kg8 65. Qg5+ $11) 59. Qc8 {Threatening mate with Qd7+.} ({But not} 59. Rxh2 $2 Bxh2 60. Qd8 g1=Q $19) 59... gxh1=Q 60. Qg4+ Kh6 61. Qh4+ Kg6 62. Qg4+ Kh6 63. Qh4+ Kg6 64. Qg4+ Kh6 {Accuracy: White = 39%, Black = 63%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.21"]
[White "Carvalho, Guillermo"]
[Black "Serafim Junior, Arnor"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2187"]
[BlackElo "1765"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,79,6,33,25,27,23,29,33,41,33,33,22,40,35,27,18,43,7,27,24,22,-1,0,-28,-18,-53,-28,-77,-69,-339,-43,-15,-24,-46,0,7,20,-25,19,3,0,0,59,58,57,57,51,51,53,43,63,66,226,225,324,324,373,376,362,339,859,859,850,749,1323,1333,1287,1174,1672,1645]} 1. d4 Nf6 2. Nc3 d6 3. Bg5 Nbd7 4. e4 e5 5. Nf3 Be7 6. Bc4 c6 7. a4 {C41: Philidor Defence.} Qc7 8. O-O O-O 9. h3 {White has an edge.} Re8 10. Re1 h6 11. Bh4 Nf8 12. Bg3 {[%cal Rd4e5]} Ng6 13. Bb3 {[#]} Bd8 $146 ({Predecessor:} 13... b6 14. Qe2 Bf8 15. Qc4 Qb7 16. Qe2 Nh5 17. Bh2 Nhf4 18. Qd2 Qd7 19. dxe5 Nxg2 {0-1 (32) Nguyen,N-Hoang,T Dong Thap 2003}) 14. Qd2 Be6 15. Bxe6 Rxe6 16. d5 cxd5 17. exd5 Re8 18. Ra3 Qc5 19. Qe3 {Black should prevent Qxc5.} Bb6 {aiming for ...Qxa3!} 20. a5 $2 {[%mdl 8192] [#]} (20. Qxc5 $15 Bxc5 21. Rb3) 20... Qxe3 $2 (20... Qxa3 $1 $19 {[%mdl 512]} 21. axb6 (21. bxa3 Bxe3) 21... Qxb2) 21. fxe3 $15 Bc5 22. Rb3 Re7 ({Black should try} 22... Ne7 $15) 23. Bf2 $11 Rc8 24. Kf1 a6 25. Ra1 Rec7 26. Ra4 Ba7 ({Better is} 26... Ne7 $11) 27. Rab4 $14 Rb8 $1 28. Nd2 Ne7 29. e4 Bxf2 30. Kxf2 Nd7 31. Rc4 $36 {[%mdl 2048] White has good play.} Nc5 $2 (31... Rbc8 $14) 32. Rb6 $18 Nc8 {[#]} (32... Rbc8 $142 33. Rxd6 Nd7) 33. b4 $1 Nxb6 34. axb6 Nxe4+ 35. Ncxe4 Rxc4 $2 (35... Rd7 36. Rc7 Rxc7 37. bxc7 Rc8) 36. Nxc4 {White is clearly winning.} Kf8 37. Nexd6 f6 38. Ne4 Ke7 39. Nc5 Rc8 40. d6+ {Accuracy: White = 76%, Black = 43%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.22"]
[White "Vazquez, Facundo"]
[Black "Ramirez Dominguez, Agustin"]
[Result "1-0"]
[ECO "E67"]
[WhiteElo "2155"]
[BlackElo "1894"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,55,47,69,70,69,72,85,86,91,52,77,76,76,49,76,76,92,79,211,190,298,309,420,407,417,370,485,500,752,746,974,992,2002,2000,1954,1940]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 O-O 5. Bg2 d6 6. Nf3 Nbd7 7. O-O h6 8. e4 e5 9. h3 Re8 10. Be3 b6 11. Qc2 Bb7 12. d5 {[#] E67: King's Indian: Fianchetto: 6...Nbd7.} a5 $146 ({Predecessor:} 12... a6 13. b4 a5 14. a3 Qe7 15. Rfd1 axb4 16. axb4 Rxa1 17. Rxa1 Ra8 18. Rxa8+ Bxa8 19. Qa4 Qd8 {1-0 (59) Masotti,R (1954)-Gonella,D (1739) Crema 2008}) 13. a3 Nh7 14. b4 {White is better.} Rf8 15. Nd2 f5 16. exf5 gxf5 {...f4 is the strong threat.} 17. f4 e4 18. Rae1 axb4 19. axb4 Qf6 (19... Ndf6 $16) 20. Nb5 $18 ({Less strong is} 20. Ncxe4 Qb2 $14) 20... Rac8 {[#]} (20... Qe7 {might work better.} 21. g4 (21. Nxc7 Rac8 $18) 21... c6) 21. Nxe4 $1 {[%mdl 512]} Qg6 (21... fxe4 22. Bxe4) 22. Bf2 Nhf6 23. Nxf6+ Bxf6 24. Re6 {White is clearly winning.} Qh5 (24... Qg7 $142 25. Qd3 Qh7) 25. Nd4 Bxd4 26. Bxd4 Rfe8 {[#]} 27. g4 $1 {[%mdl 512]} Qf7 (27... fxg4 28. hxg4) 28. Rxh6 {Accuracy: White = 92%, Black = 28%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.23"]
[White "Urrestarazu, Diego"]
[Black "Escofet, Jaime"]
[Result "1/2-1/2"]
[ECO "A89"]
[WhiteElo "1837"]
[BlackElo "2025"]
[Annotator "NA RC"]
[PlyCount "36"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 8,36,31,22,36,17,34,30,39,6,27,0,-18,-16,-7,-65,-60,-65,-9,-24,-23,-14,-12,-8,8,-11,0,-6,-5,-26,0]} 1. c4 {[%emt 0:02:30]} g6 {[%emt 0:01:10]} 2. Nc3 {[%emt 0:00:21]} Bg7 {[%emt 0:00:09]} 3. d4 {[%emt 0:00:21]} f5 {[%emt 0:00:47]} 4. g3 {[%emt 0:01:57]} Nf6 {[%emt 0:00:13]} 5. Bg2 {[%emt 0:00:07]} O-O {[%emt 0:00:10]} 6. Nf3 {[%emt 0:00:59]} d6 {[%emt 0:00:27]} 7. O-O {[%emt 0:00:32]} Nc6 {[%emt 0:00:29]} 8. Rb1 {[%emt 0:14:20]} (8. d5 $5 {[%cal Rd5c6]} Na5 9. Qd3 $11) 8... Ne4 {[%emt 0:10:44]} 9. Nd5 {[%emt 0:06:27]} (9. d5 $5 {[%cal Rd5c6]} Nxc3 10. bxc3 $11) 9... e6 {[%emt 0:02:28]} 10. Nf4 {[%emt 0:01:12]} Qe8 {[%emt 0:08:24]} 11. Nxe6 {[%emt 0:08:06]} (11. d5 $11 Nd8 12. Nd2) 11... Bxe6 {[%emt 0:00:25]} 12. d5 {[%emt 0:00:03]} Bd7 {[%emt 0:00:25]} 13. dxc6 {[%emt 0:00:05]} Bxc6 {[%emt 0:02:10]} 14. Be3 {[%emt 0:03:36]} Qe7 {[%emt 0:02:00]} 15. Bd4 {[%emt 0:02:02]} Nf6 {[%emt 0:03:38]} 16. e3 {[%emt 0:01:58]} a5 {[%emt 0:06:15]} 17. Qd2 {[%emt 0:03:04]} b6 {[%emt 0:00:39]} 18. Rfd1 {[%emt 0:03:44]} Rfe8 $11 {[%emt 0:02:03]} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.24"]
[White "Larrea, Daniela"]
[Black "Brizzi, Milagros Tatiana"]
[Result "0-1"]
[ECO "D47"]
[WhiteElo "1757"]
[BlackElo "2022"]
[Annotator "NA RC"]
[PlyCount "46"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 8,46,27,15,17,25,10,16,32767,32767,32767,32767,32767,32767,-6,-58,-33,-14,-4,-89,-88,-123,-67,-114,-87,-119,-117,-145,-133,-152,-130,-133,-125,-313,-97,-97,-79,-156,-130,-1570,-1679]} 1. d4 {[%emt 0:04:36]} d5 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:06]} c6 {[%emt 0:00:00]} 3. Nf3 {[%emt 0:00:14]} Nf6 {[%emt 0:00:02]} 4. Nc3 {[%emt 0:00:07]} e6 {[%emt 0:00:36]} 5. e3 {[%emt 0:00:34]} Nbd7 {[%emt 0:00:34]} 6. Bd3 {[%emt 0:01:09]} dxc4 {[%emt 0:03:20]} 7. Bxc4 {[%emt 0:00:13]} b5 {[%emt 0:00:20]} 8. Bd3 {[%emt 0:01:02]} Bb7 {[%emt 0:00:16]} 9. O-O {[%emt 0:01:16]} a6 {[%emt 0:00:18]} 10. Qc2 {[%emt 0:02:59] D48: Semi-Slav: Meran System: 7...b5 8 Bd3 a6.} c5 {[%emt 0:03:37]} 11. Ne4 {[%emt 0:04:29]} Rc8 {[%emt 0:04:36]} (11... c4 $5 {[%cal Rc4d3]} 12. Nxf6+ Nxf6 $15) 12. dxc5 {[%emt 0:05:56]} Nxc5 {[%emt 0:03:13] [#]} 13. Nxf6+ $146 {[%emt 0:05:23]} ({Predecessor:} 13. Nxc5 $11 Bxc5 (13... Rxc5 14. Qe2 Bxf3 15. gxf3 Bd6 16. e4 Qb8 17. Be3 Rh5 18. a4 Bxh2+ 19. Kg2 {0-1 (26) Granero Roca,A (2385)-Handke,F (2496) ICC INT 2009}) 14. Qe2) 13... Qxf6 {[%emt 0:01:51]} 14. Be2 {[%emt 0:05:23]} Ne4 {[%emt 0:20:41]} 15. Qd1 {[%emt 0:09:21]} Bc5 {[%emt 0:02:48]} 16. Nd2 {[%emt 0:08:28]} Nxd2 {[%emt 0:05:40]} 17. Qxd2 {[%emt 0:01:20] [#]} O-O $1 {[%emt 0:02:43]} 18. Rd1 {[%emt 0:05:13]} Rfd8 {[%emt 0:12:59]} 19. Qe1 {[%emt 0:00:17]} Bd6 {[%emt 0:01:56]} 20. Bd3 $2 {[%emt 0:14:57] [#]} (20. Bd2 $17 {is a better defense.}) 20... Be5 $2 {[%emt 0:03:14]} (20... Bxh2+ $1 $19 {[%mdl 512] and Black stays clearly on top.} 21. Kxh2 Qh4+ 22. Kg1 {[#]} Qg4 $1 {[%mdl 512]}) 21. Qe2 {[%emt 0:01:09]} Bc7 {[%emt 0:14:04]} 22. Qg4 {[%emt 0:11:02]} (22. a4 $15) 22... Qe5 {[%emt 0:02:39]} 23. Qg3 $2 {[%emt 0:04:05] [#]} (23. g3 $17) 23... Qh5 $19 {[%emt 0:00:49]} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.25"]
[White "Meskanen, Vesa"]
[Black "Osinaga, Eduardo"]
[Result "1-0"]
[ECO "B23"]
[WhiteElo "2019"]
[BlackElo "1697"]
[Annotator "NA RC"]
[PlyCount "75"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 9,72,7,94,32767,32767,3,6,-21,-6,-26,14,6,16,-39,-28,-39,30,33,35,34,25,12,8,0,65,-50,-35,-52,-52,-49,-33,-27,-29,-54,-47,-70,63,63,57,84,144,168,166,100,248,144,240,169,180,172,357,396,358,422,441,478,710,945,742,660,664,884,2064,1487,6478]} 1. e4 {[%emt 0:12:10]} c5 {[%emt 0:00:00]} 2. Nc3 {[%emt 0:01:24]} d6 {[%emt 0:00:33]} 3. g3 {[%emt 0:00:26]} g6 {[%emt 0:00:27]} 4. Bg2 {[%emt 0:00:14]} Bg7 {[%emt 0:00:11]} 5. Nge2 {[%emt 0:00:46]} e6 {[%emt 0:00:50]} (5... Nf6 $11) 6. O-O {[%emt 0:00:20]} Ne7 {[%emt 0:00:14]} 7. d3 {[%emt 0:01:17]} O-O {[%emt 0:00:18]} 8. f4 {[%emt 0:01:15]} Nbc6 {[%emt 0:00:37]} 9. Be3 {[%emt 0:01:08] The main line 9.Be3 scores better than 9.g4.} a6 {[%emt 0:01:08] B25: Closed Sicilian: 3 g3, lines without early Be3.} 10. g4 {[%emt 0:08:08]} f5 {[%emt 0:04:51] [#]} 11. h3 $146 {[%emt 0:01:47]} ({White should play Predecessor:} 11. exf5 $11 gxf5 12. Ng3 (12. g5 b5 13. Qe1 Rb8 14. h4 Nd4 15. Bxd4 cxd4 16. Nd1 Qc7 17. Rc1 {0-1 (49) Birol,E (1429)-Cakir,I (1594) Konya 2016})) 11... b5 {[%emt 0:04:36]} 12. a3 {[%emt 0:04:33]} b4 {[%emt 0:05:52]} (12... Qc7 $142) 13. axb4 {[%emt 0:00:20]} cxb4 {[%emt 0:00:20]} 14. Na4 {[%emt 0:00:31]} Rb8 {[%emt 0:02:43]} 15. Qe1 {[%emt 0:05:41]} Bd7 {[%emt 0:01:33]} 16. Qf2 {[%emt 0:02:05]} Nc8 {[%emt 0:01:13]} (16... b3 $11) 17. d4 {[%emt 0:07:10]} ({Better is} 17. gxf5 $14 exf5 18. e5) 17... fxe4 {[%emt 0:03:47]} 18. Bxe4 {[%emt 0:00:42]} N6e7 {[%emt 0:02:13]} 19. Qg2 {[%emt 0:05:24]} Nb6 {[%emt 0:02:52]} 20. Nxb6 {[%emt 0:02:25]} Qxb6 {[%emt 0:03:56]} 21. c3 {[%emt 0:06:44]} Bb5 {[%emt 0:05:37]} 22. Rfe1 {[%emt 0:01:33]} Bxe2 {[%emt 0:03:38]} ({Better is} 22... Bc4 $17) 23. Qxe2 {[%emt 0:02:18]} bxc3 {[%emt 0:03:55]} 24. bxc3 {[%emt 0:04:43]} d5 {[%emt 0:01:00]} 25. Rxa6 {[%emt 0:05:50]} Qc7 {[%emt 0:03:40]} 26. Bg2 {[%emt 0:00:57]} Rb6 {[%emt 0:00:11]} (26... Qxc3 $16 27. Rxe6 Nc6) 27. Bd2 {[%emt 0:02:13]} Kf7 {[%emt 0:02:00]} (27... Rfb8 $16 28. Bf1 Rxa6 29. Qxa6 Rb6) 28. h4 {[%emt 0:06:14]} Qd6 {[%emt 0:00:22]} 29. Ra7 {[%emt 0:00:30]} Kg8 $2 {[%emt 0:02:09]} (29... Qb8 {might work better.} 30. Rea1 Rb1+ 31. Rxb1 Qxa7) 30. Bc1 {[%emt 0:02:16]} Nc8 {[%emt 0:05:48]} 31. Ba3 {[%emt 0:04:39] Skewer} Qb8 {[%emt 0:01:49]} 32. Rd7 {[%emt 0:01:27]} Rf7 {[%emt 0:05:21]} (32... Re8 $142 33. f5 Rc6 34. fxe6 Kh8) 33. Rxf7 {[%emt 0:01:15]} Kxf7 {[%emt 0:00:10] [#]} 34. f5 $1 {[%emt 0:00:26]} gxf5 {[%emt 0:04:17]} 35. gxf5 {[%emt 0:00:27]} Ne7 {[%emt 0:03:32]} 36. Qh5+ $18 {[%emt 0:01:03]} (36. fxe6+ $142 Kg8 37. Bxe7) 36... Kf8 {[%emt 0:01:16]} 37. fxe6 {[%emt 0:00:34]} Qe8 {[%emt 0:00:16]} 38. Rf1+ {[%emt 0:00:12]} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.26"]
[White "Manteiga, Franco"]
[Black "Gaye, Gustavo"]
[Result "1/2-1/2"]
[ECO "A43"]
[WhiteElo "1703"]
[BlackElo "2001"]
[Annotator "NA RC"]
[PlyCount "60"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 11,59,51,32767,32767,32767,32767,32767,32767,32767,60,42,51,57,47,32767,34,41,41,54,27,90,22,75,55,61,-65,-83,-164,-48,-66,-8,0,21,13,96,0,0,0,0,-118,91,91,181,171,431,123,123,150,585,56]} 1. d4 {[%emt 0:00:00]} c5 {[%emt 0:00:04]} 2. d5 {[%emt 0:00:00]} d6 {[%emt 0:00:06]} 3. c4 {[%emt 0:00:03]} g6 {[%emt 0:00:05]} 4. Nc3 {[%emt 0:00:10]} Bg7 {[%emt 0:00:06]} 5. e4 {[%emt 0:00:22]} Nf6 {[%emt 0:00:08]} 6. Nge2 {[%emt 0:00:14]} O-O {[%emt 0:00:19]} 7. Ng3 {[%emt 0:00:08]} e6 {[%emt 0:00:53]} 8. Be2 {[%emt 0:00:40]} exd5 {[%emt 0:00:18]} 9. cxd5 {[%emt 0:00:22]} Na6 {[%emt 0:01:12]} 10. O-O {[%emt 0:02:24] A65: Modern Benoni: 6 e4.} Nc7 {[%emt 0:00:12]} 11. Bg5 {[%emt 0:06:43]} h6 {[%emt 0:00:44]} 12. Be3 {[%emt 0:01:19]} Re8 {[%emt 0:01:10]} 13. a4 {[%emt 0:02:38]} b6 {[%emt 0:03:21]} 14. Qd2 {[%emt 0:02:10]} Kh7 {[%emt 0:00:14]} 15. f3 {[%emt 0:15:16]} Rb8 {[%emt 0:02:08] [#]} 16. Bb5 $146 {[%emt 0:12:15]} (16. Bf4 $16) ({Predecessor:} 16. f4 a6 17. e5 Ng8 18. Nge4 dxe5 19. d6 Ne6 20. fxe5 Rf8 21. Nf6+ Nxf6 22. exf6 Bxf6 23. Rxf6 Qxf6 {½-½ (54) Simonetto,A (2173)-Colombo,R (2100) Alessandria 2018}) 16... Bd7 {[%emt 0:04:17]} 17. Qd3 {[%emt 0:01:12]} Re7 {[%emt 0:10:39]} 18. f4 {[%emt 0:13:30]} (18. Rfc1 $14) 18... Ng4 {[%emt 0:04:08]} 19. e5 {[%emt 0:07:34]} (19. Bxd7 $17 Nxe3 20. Bc6) 19... Bxb5 {[%emt 0:02:34]} (19... Nxb5 $17 20. axb5 f5 21. Rxa7 dxe5) 20. axb5 {[%emt 0:00:58]} Nxe3 {[%emt 0:00:12]} 21. Qxe3 {[%emt 0:04:31]} dxe5 {[%emt 0:01:23]} 22. f5 $1 {[%emt 0:00:42]} Ne8 {[%emt 0:01:25]} (22... Rd7 $1 $14) 23. Nce4 {[%emt 0:04:11]} ({White should play} 23. Nge4 $16 Reb7 24. Qd3) 23... Rd7 $1 {[%emt 0:01:14]} 24. fxg6+ {[%emt 0:02:59]} fxg6 {[%emt 0:00:52]} 25. d6 {[%emt 0:02:32]} (25. Qb3 $11 {remains equal.}) 25... Rbb7 $2 {[%emt 0:05:28]} (25... Nxd6 $17 {keeps the pressure on.} 26. Nxd6 Rxd6 27. Rxa7 Rd7 28. Rxd7 Qxd7) 26. Qf3 {[%emt 0:01:19]} Qb8 {[%emt 0:12:47]} (26... a6 $16 {was worth a try.}) 27. Rad1 {[%emt 0:01:47]} Rd8 $2 {[%emt 0:08:04]} (27... Qd8 28. Ne2 c4) 28. Rd5 $2 {[%emt 0:06:02]} (28. h4 $18 {is the precise move to win.} Qc8 29. h5) 28... Rbd7 {[%emt 0:02:17]} 29. Rfd1 {[%emt 0:03:27]} Qa8 $2 {[%emt 0:07:48]} (29... Nxd6 $16 {is tougher.} 30. Qg4 c4) 30. Qd3 $14 {[%emt 0:01:32]} (30. h4 $18) 30... Qb8 {[%emt 0:15:36]} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.27"]
[White "Campora, Edgardo"]
[Black "Montanu, Dan-Vladimir"]
[Result "0-1"]
[ECO "B50"]
[WhiteElo "1676"]
[BlackElo "1983"]
[Annotator "NA RC"]
[PlyCount "102"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 14,102,16,9,18,8,24,10,34,29,28,16,62,50,60,48,92,81,78,77,73,67,64,49,32767,32767,32767,32767,32767,177,181,138,166,143,181,182,199,224,208,213,221,232,224,208,238,247,292,322,404,335,365,389,413,275,254,284,288,295,266,305,333,388,389,416,788,32767,32767,32767,32767,591,533,32767,670,32767,32767,32767,32767,754,635,106,330,32767,32767,32767,32767,32767,32767,-706,-844,-789,-797]} 1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} d6 {[%emt 0:00:00]} 3. c3 {[%emt 0:00:00]} Nf6 {[%emt 0:00:48]} 4. h3 {[%emt 0:02:40]} Nc6 {[%emt 0:00:41]} 5. Bd3 {[%emt 0:00:05]} g6 {[%emt 0:00:35]} 6. Bc2 {[%emt 0:00:06]} Bg7 {[%emt 0:00:08] B50: Sicilian: 2...d6, Miscellaneous.} 7. a3 {[%emt 0:00:12]} Bd7 {[%emt 0:03:38]} 8. d4 {[%emt 0:00:55]} cxd4 {[%emt 0:00:18]} 9. cxd4 {[%emt 0:00:07]} O-O {[%emt 0:01:52] [#]} 10. Nc3 $146 {[%emt 0:00:36]} ({Predecessor:} 10. O-O Rc8 11. Nc3 a6 12. Be3 b5 13. Qd2 Qc7 14. Bh6 Na5 15. Bxg7 Kxg7 16. e5 {0-1 (45) Aleshko,M (1219)-Grochowski,M (1781) Poznan 2018}) 10... Rc8 {[%emt 0:02:36]} 11. Be3 {[%emt 0:04:24]} Na5 {[%emt 0:02:30]} 12. Nd2 {[%emt 0:09:10]} Nc4 {[%emt 0:10:30]} (12... Qb6 $11 13. Rb1 Qa6) 13. Nxc4 {[%emt 0:01:17]} Rxc4 {[%emt 0:00:10]} 14. Qe2 {[%emt 0:00:49]} Qc8 {[%emt 0:01:43]} 15. O-O a6 {[%emt 0:16:40]} 16. Bd3 {[%emt 0:21:48]} Rc7 {[%emt 0:19:05]} 17. e5 {[%emt 0:01:14]} dxe5 {[%emt 0:04:12]} 18. dxe5 {[%emt 0:03:01]} Ne8 {[%emt 0:03:05]} 19. Nd5 Bc6 {[%emt 0:00:23]} 20. Nxc7 {[%emt 0:00:57]} Nxc7 {[%emt 0:02:18]} 21. f4 {[%emt 0:10:59]} Nd5 22. Bc5 {[%emt 0:06:14]} Rd8 {[%emt 0:00:53]} 23. Rac1 {[%emt 0:02:49]} e6 {[%emt 0:00:33]} 24. Be4 {[%emt 0:05:27]} Bf8 {[%emt 0:02:17]} 25. Bxf8 {[%emt 0:06:24]} Kxf8 {[%emt 0:00:11]} 26. Bxd5 {[%emt 0:04:40]} Rxd5 {[%emt 0:04:07]} 27. Rfd1 {[%emt 0:00:19]} Qd8 {[%emt 0:02:39]} 28. Qe1 Qb6+ {[%emt 0:04:56]} 29. Qf2 {[%emt 0:08:48]} Qb3 {[%emt 0:01:19]} 30. Rxd5 {[%emt 0:01:26]} exd5 {[%emt 0:12:42]} (30... Qxd5 $142 31. Qc5+ Qxc5+ 32. Rxc5 h5) 31. Rc3 {[%emt 0:05:37]} Qd1+ {[%emt 0:00:38]} 32. Kh2 Qb1 {[%emt 0:07:51]} 33. Qc5+ {[%emt 0:07:55]} Ke8 {[%emt 0:01:31]} 34. b4 {[%emt 0:00:32]} ({Don't do} 34. Qd6 Qe4 $18) 34... Qe4 {[%emt 0:01:39]} 35. Qe3 {[%emt 0:01:09]} Qf5 {[%emt 0:01:19]} 36. g4 {[%emt 0:02:52]} Qd7 {[%emt 0:01:34]} 37. Qd4 {[%emt 0:00:29]} Qe6 {[%emt 0:03:12]} 38. Rf3 {[%emt 0:00:59]} Bd7 {[%emt 0:02:37]} (38... Qe7 $142 39. f5 Kd8) 39. f5 {[%emt 0:02:39]} gxf5 {[%emt 0:00:09]} 40. gxf5 {[%emt 0:00:04]} Qc6 {[%emt 0:00:11]} 41. Rc3 {[%emt 0:00:56]} Qb5 {[%emt 0:05:07]} 42. Qg4 {[%emt 0:00:48]} Qf1 $2 {[%emt 0:02:19]} (42... Bxf5 43. Qg8+ (43. Qxf5 Qe2+ 44. Kh1 Qe1+ 45. Kg2 Qxc3 $11) 43... Ke7) 43. Qg8+ {[%emt 0:01:35]} Ke7 {[%emt 0:00:08]} 44. f6+ {[%emt 0:00:10]} Ke6 {[%emt 0:00:12]} 45. Qg4+ {[%emt 0:00:53]} Qf5 {[%emt 0:01:08]} 46. Qe2 $2 {[%emt 0:00:03]} (46. Rc7 $18 Qxg4 47. hxg4) 46... Qxe5+ $2 {[%emt 0:01:23]} (46... Bc6 $16) 47. Qxe5+ {[%emt 0:00:15]} Kxe5 {[%emt 0:00:08]} 48. Rc7 {[%emt 0:00:20]} Be6 {[%emt 0:00:10]} 49. Rxb7 {[%emt 0:00:11]} d4 {[%emt 0:00:16]} 50. Rc7 $4 {[%emt 0:00:36]} (50. Kg3 $18) 50... d3 $19 {[%emt 0:00:53]} 51. Rc1 {[%emt 0:00:36]} Bb3 {[%emt 0:00:28]} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.28"]
[White "Rodriguez Farias, Eduardo"]
[Black "Munoz Rozas, Diego"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "1963"]
[BlackElo "1685"]
[Annotator "NA RC"]
[PlyCount "126"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 16,126,25,32767,32767,32767,32,47,37,32,33,32767,32767,32767,32767,18,79,32767,32767,32767,32767,116,110,4,11,0,0,0,0,5,0,-65,46,-22,35,0,237,261,261,164,174,69,305,314,320,328,354,290,353,0,11,0,0,5,203,4,198,32767,32767,32767,-243,-496,-420,-393,-333,-5073,-809,-616,-522,-749,-860,-744,-1248,-1000,-6,32767,32767,32767,32767,360,200,32767,32767,32767,32767,32767,32767,32767,76,0,32767,32767,32767,32767,32767,32767,32767,32767,0,0,0,32767,32767,32767,32767,0,0,32767,32767,32767,32767,0,0]} 1. e4 {[%emt 0:13:00]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:13]} d6 {[%emt 0:00:04]} 3. c3 {[%emt 0:00:05]} Nf6 {[%emt 0:00:07]} 4. Be2 {[%emt 0:00:02]} g6 {[%emt 0:00:46]} 5. O-O {[%emt 0:00:08]} Bg7 {[%emt 0:00:05]} 6. Re1 {[%emt 0:00:12]} O-O {[%emt 0:00:09]} 7. Bf1 {[%emt 0:00:04]} Nc6 {[%emt 0:00:11]} 8. h3 {[%emt 0:00:53]} b6 {[%emt 0:00:28]} 9. d4 {B50: Sicilian: 2...d6, Miscellaneous.} cxd4 {[%emt 0:00:14]} 10. cxd4 {[%emt 0:01:42]} e6 {[%emt 0:00:47]} 11. Nc3 {[%emt 0:00:17]} Bb7 {[%emt 0:00:06] [#]} 12. Bg5 $146 {[%emt 0:01:33]} ({Predecessor:} 12. Be3 Rc8 13. Rc1 a6 14. Qe2 b5 15. a3 Na5 16. Nd2 Nc4 17. Nxc4 Rxc4 18. f3 {1-0 (36) Beres,L (2074)-Capak,S (1934) Slovakia 2019}) 12... h6 {[%emt 0:00:06]} 13. Bh4 {[%emt 0:02:38]} g5 {[%emt 0:00:05]} 14. Bg3 {[%emt 0:00:10]} a6 {[%emt 0:00:04]} 15. Bh2 {[%emt 0:11:36]} g4 {[%emt 0:32:05]} (15... b5 $11 {remains equal.}) 16. hxg4 {[%emt 0:01:21]} Nxg4 {[%emt 0:00:06]} 17. Bg3 {[%emt 0:00:08]} e5 {[%emt 0:00:06]} 18. Nh4 {[%emt 0:12:15]} Qg5 {[%emt 0:16:09]} 19. Nf5 {[%emt 0:03:46]} (19. dxe5 $16 Bxe5 20. Nf5) 19... Nxd4 {[%emt 0:02:57]} 20. Bh4 {[%emt 0:27:59]} Qf4 {[%emt 0:05:47]} 21. Bg3 {[%emt 0:02:27]} Qg5 {[%emt 0:00:58]} 22. Nxd6 {[%emt 0:00:33]} Bc6 {[%emt 0:02:10]} 23. Be2 {[%emt 0:03:08]} ({White should play} 23. Qc1 $11) 23... f5 {[%emt 0:18:38]} (23... Rad8 $17 24. Nc4 b5) 24. Nxf5 {[%emt 0:06:50]} (24. Bxg4 $14 f4 25. Bh2) 24... Nxf5 {[%emt 0:02:02]} (24... Nxf2 $5 25. Kxf2 Nxf5 26. exf5 Rad8 27. Qb3+ {[%mdl 64] Double Attack} Kh7 $11) 25. exf5 {[%emt 0:00:45]} Rad8 $2 {[%emt 0:03:01]} 26. Qb3+ {[%emt 0:01:45] Double Attack} Kh8 {[%emt 0:00:25]} 27. Bxg4 {[%emt 0:00:44]} Qxg4 {[%emt 0:00:07]} 28. Qe6 {[%emt 0:04:04]} (28. Qxb6 $18 Ba8 29. Qxa6) 28... Bxg2 $2 {[%emt 0:04:22]} (28... Rf6 $16 {was necessary.} 29. Qxe5 Rd2) 29. Kxg2 Rxf5 30. Kg1 {[%emt 0:05:26]} Rdf8 {[%emt 0:01:24]} 31. Re2 {[%emt 0:02:19]} ({Not} 31. Qxb6 Rf3 $18) 31... h5 {[%emt 0:01:23]} 32. Qc6 $2 {[%emt 0:01:09]} ({Not} 32. Qxb6 h4 $11 {[%mdl 64] Pin}) (32. Re4 $18 Qf3 33. Qxb6) 32... h4 {[%emt 0:01:05] Pin} 33. Qe4 {[%emt 0:00:41]} Rf4 {[%emt 0:01:04]} 34. Qh1 {[%emt 0:00:30]} Bf6 $2 {[%emt 0:04:56] [#]} (34... Kg8 $11 35. Re3 hxg3 36. Rxg3 Qd7) 35. Re4 $2 {[%emt 0:02:24]} (35. Re3 $1 $18) 35... Rg8 $2 {[%emt 0:05:26]} (35... Bg5 $11 {and Black has nothing to worry.}) 36. Rxf4 exf4 {[%emt 0:00:45]} 37. Qg2 {[%emt 0:00:53]} hxg3 $2 {[%emt 0:02:00]} (37... Bd4 38. Ne4 fxg3 39. Nxg3 Qd7) 38. f3 $2 {[%emt 0:00:35]} (38. Qh1+ Kg7 39. Qb7+ Kg6 40. Qe4+ Kh6 41. Qh1+ Kg7 42. Qb7+ Kh6 43. Qh1+ Kg7) 38... Bd4+ {[%emt 0:00:25]} 39. Kf1 {[%emt 0:00:01]} Qe6 {[%emt 0:01:04]} 40. Ne4 $2 {[%emt 0:00:17]} (40. Rd1 Re8 41. Qc2) 40... Kg7 {[%emt 0:00:42]} (40... Qc4+ $142 41. Ke1 {[#]} Bf2+ $1 {[%mdl 512]} 42. Nxf2 gxf2+ 43. Qxf2 Re8+ 44. Kd2 Qd5+ 45. Kc1 Rc8+ 46. Qc2 Rxc2+ 47. Kxc2 Qxf3) 41. Rc1 {[%emt 0:01:08]} Rc8 {[%emt 0:01:13]} 42. Rd1 {[%emt 0:00:36]} Qc4+ {[%emt 0:00:52]} 43. Ke1 {[%emt 0:00:33]} Qb4+ {[%emt 0:01:17]} 44. Kf1 {[%emt 0:00:29]} Rh8 $2 {[%emt 0:00:47]} ({Black should play} 44... Qb5+ $19 45. Ke1 {[#]} Bf2+ $1 {[%mdl 512]} 46. Nxf2 Rc2 $1 {[%mdl 576] Double Attack, Pin}) 45. Nxg3 {[%emt 0:00:16]} fxg3 {[%emt 0:00:29]} 46. Qxg3+ {[%emt 0:00:01]} Kf7 {[%emt 0:00:40]} 47. Qf4+ {Double Attack} Kg6 48. Qg4+ {[%emt 0:01:35]} Kf7 {[%emt 0:00:42]} 49. Qf4+ {[%emt 0:00:00]} Kg6 50. Qe4+ Kf7 {[%emt 0:00:15]} 51. Qxd4 {[%emt 0:01:24]} Qb5+ {[%emt 0:01:41]} 52. Qd3 {[%emt 0:00:34]} (52. Rd3 $14 Rc8 53. Ke1 Qa5+ 54. Rd2 Rc1+ 55. Kf2) 52... Rh1+ 53. Kg2 {[%emt 0:00:01]} Rxd1 {[%emt 0:01:03]} 54. Qxd1 Qxb2+ 55. Kg3 {[%emt 0:00:44]} Qg7+ {[%emt 0:01:07]} 56. Kf2 {[%emt 0:00:12]} Qb2+ {[%emt 0:00:06]} 57. Kg3 {[%emt 0:00:01]} Qg7+ {[%emt 0:00:09]} 58. Kh3 {[%emt 0:01:18]} Qh6+ {[%emt 0:00:17]} 59. Kg2 Qg5+ {[%emt 0:00:19]} 60. Kf2 {[%emt 0:00:52]} Qh4+ {[%emt 0:00:00]} 61. Ke2 {[%emt 0:01:08]} Qh2+ {[%emt 0:00:00]} 62. Ke3 {[%emt 0:00:00]} Qe5+ {[%emt 0:00:19]} 63. Kf2 {[%emt 0:00:36]} Qh2+ $11 {[%emt 0:00:09]} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.29"]
[White "Durante, Aurelio"]
[Black "Bon, Charles"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "1955"]
[BlackElo "1614"]
[Annotator "NA RC"]
[PlyCount "41"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 8,37,26,23,30,16,17,17,16,21,32767,13,77,77,153,161,172,134,131,140,218,112,114,127,386,402,415,431,416,443,521,537]} 1. Nf3 {[%emt 0:00:46]} Nf6 {[%emt 0:00:01]} 2. g3 {[%emt 0:00:54]} g6 {[%emt 0:00:39]} 3. Bg2 {[%emt 0:00:08]} Bg7 {[%emt 0:00:07]} 4. O-O {[%emt 0:00:06]} d6 {[%emt 0:00:31]} 5. d4 {[%emt 0:00:31]} O-O {[%emt 0:00:41]} 6. Re1 {[%emt 0:00:20]} Nbd7 {[%emt 0:05:54]} 7. e4 {[%emt 0:00:22]} e5 {[%emt 0:01:11]} 8. d5 {[%emt 0:01:50] A49: 1 d4 Nf6 2 Nf3 g6 3 g3: Anti-King's Indian systems.} Ne8 {[%emt 0:07:26]} 9. c4 {[%emt 0:00:26] [#]} Ndf6 $146 {[%emt 0:01:14]} ({Predecessor:} 9... f5 $11 {remains equal.} 10. Nc3 f4 11. b4 g5 12. Qd3 Qf6 13. g4 Qg6 14. Kf1 h5 15. h3 hxg4 16. hxg4 {0-1 (66) Sounov,B (2016)-Galaev,A (1691) Uljanovsk 2009}) 10. Nc3 {[%emt 0:00:33]} c6 {[%emt 0:02:16] [#]} (10... Nd7 $142) 11. dxc6 $1 {[%emt 0:02:16]} Nc7 {[%emt 0:04:52]} 12. cxb7 {[%emt 0:00:30]} Bxb7 {[%emt 0:00:14]} 13. b3 {[%emt 0:02:27]} Rb8 {[%emt 0:05:57]} (13... Ne6 $16 {was worth a try.} 14. Rb1 Nc5) 14. Nd5 {[%emt 0:01:37]} ({Better is} 14. Ba3 $18) 14... Ncxd5 {[%emt 0:00:46]} 15. cxd5 {[%emt 0:00:38]} Nxd5 $2 {[%emt 0:04:33]} (15... Ba6 $16 16. Bh3 Bb5) 16. exd5 {[%emt 0:00:55]} e4 {[%emt 0:00:27]} 17. Nd4 {[%emt 0:00:21]} Bxd5 {[%emt 0:04:31]} 18. Bxe4 {[%emt 0:00:30]} Re8 {[%emt 0:02:38]} 19. Bxd5 $18 {[%emt 0:00:56]} Rxe1+ {[%emt 0:03:03]} 20. Qxe1 {[%emt 0:00:03]} Bxd4 {[%emt 0:00:24]} 21. Bh6 {[%emt 0:00:42]} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.30"]
[White "Moccero, Eduardo"]
[Black "Vassallo, Mariano"]
[Result "1-0"]
[ECO "D05"]
[WhiteElo "1926"]
[BlackElo "1313"]
[Annotator "NA RC"]
[PlyCount "45"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 8,44,8,0,9,6,32767,32767,32767,32767,13,-14,0,-24,8,27,32767,24,29,1,68,61,93,75,81,81,82,68,87,63,691,702,29995,29996,29996,29997,29997,29998,29998]} 1. d4 {[%emt 0:00:00]} d5 2. Nf3 {[%emt 0:00:00]} Nf6 {[%emt 0:00:35]} 3. e3 {[%emt 0:00:00]} e6 {[%emt 0:00:40]} 4. Bd3 {[%emt 0:00:02]} c5 {[%emt 0:00:45]} 5. c3 {[%emt 0:00:09]} Nc6 {[%emt 0:00:51]} 6. Nbd2 {[%emt 0:00:08]} Bd6 {[%emt 0:01:06]} 7. O-O {[%emt 0:00:11]} O-O {[%emt 0:00:47]} 8. dxc5 {[%emt 0:00:09]} Bxc5 {[%emt 0:00:13]} 9. Qe2 {[%emt 0:00:05]} Qc7 {[%emt 0:03:43]} 10. e4 {[%emt 0:00:23]} e5 {[%emt 0:04:38]} 11. exd5 {[%emt 0:03:04]} Nxd5 {[%emt 0:00:28]} 12. Ne4 {[%emt 0:01:27] D05: Colle System with ...e6.} Be7 {[%emt 0:03:30]} 13. Bc2 {[%emt 0:04:48] [#]} Nf6 $146 {[%emt 0:02:32]} (13... Rd8 $11) ({Predecessor:} 13... Bf5 14. Re1 Bg6 15. Ng3 Bxc2 16. Qxc2 Rfe8 17. Qf5 g6 18. Qe4 Rad8 19. Bh6 f5 {½-½ (34) Fehlings,G (1728)-Niessner,A (1812) Muensterland 2005}) 14. Nfg5 {[%emt 0:07:06]} Nxe4 {[%emt 0:08:14]} 15. Qxe4 {[%emt 0:01:14]} ({Much weaker is} 15. Nxe4 Be6 $11) 15... g6 {[%emt 0:02:41]} 16. Qh4 {[%emt 0:07:00]} h5 {[%emt 0:05:32]} 17. Qg3 {[%emt 0:01:46]} Bd6 {[%emt 0:08:50]} 18. Ne4 {[%emt 0:00:59]} Bf5 $2 {[%emt 0:03:59]} (18... Be7 $16) 19. Nf6+ {[%emt 0:01:56]} Kh8 {[%emt 0:01:14]} 20. Qg5 {[%emt 0:01:19]} Kg7 {[%emt 0:01:11]} 21. Nxh5+ {[%emt 0:00:55]} Kg8 {[%emt 0:00:58]} 22. Qf6 {[%emt 0:01:09]} gxh5 {[%emt 0:00:47]} 23. Bh6 {[%emt 0:00:22]} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.31"]
[White "Moreno, Nelson"]
[Black "Santiso, Daniel"]
[Result "1-0"]
[ECO "B27"]
[WhiteElo "1656"]
[BlackElo "1900"]
[Annotator "NA RC"]
[PlyCount "55"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 10,55,79,71,60,0,16,32767,32767,32767,32767,0,0,-4,-1,-10,0,-8,0,0,0,-23,-10,-4,0,0,0,0,0,32767,32767,32767,-9,-12,0,-25,10,-20,-14,-20,0,0,0,-27,-3,0,739,779]} 1. e4 c5 {[%emt 0:00:24]} 2. Nf3 {[%emt 0:00:00]} g6 {[%emt 0:00:23]} 3. c3 {[%emt 0:00:53]} d5 {[%emt 0:03:53]} 4. exd5 {[%emt 0:00:11]} Qxd5 {[%emt 0:00:10]} 5. d4 {[%emt 0:00:07]} Bg4 {[%emt 0:07:33]} 6. Be2 {[%emt 0:00:07] B22: Sicilian: 2 c3.} cxd4 {[%emt 0:01:19]} 7. Qxd4 {[%emt 0:07:49] [#]} ({White should play} 7. cxd4 $16 Bxf3 8. Bxf3) 7... Bxf3 $146 {[%emt 0:06:12]} ({Predecessor:} 7... Qxd4 8. Nxd4 Bxe2 9. Nxe2 Nc6 10. Be3 Bg7 11. O-O Nf6 12. Nd4 Nxd4 13. Bxd4 O-O {1-0 (60) Schnorr,C (1116)-Marquardt,P (1318) Friedrichshafen 2005}) 8. Bxf3 {[%emt 0:01:38]} Qxd4 {[%emt 0:00:07]} 9. cxd4 {[%emt 0:00:06]} Nc6 {[%emt 0:00:14]} 10. Bxc6+ {[%emt 0:01:50]} bxc6 {[%emt 0:00:02]} 11. Nc3 {[%emt 0:12:25]} Bg7 {[%emt 0:07:32]} 12. Be3 {[%emt 0:00:31]} e6 {[%emt 0:13:35]} 13. Rc1 {[%emt 0:02:38]} Ne7 {[%emt 0:00:17]} 14. O-O {[%emt 0:04:37]} O-O {[%emt 0:00:48]} 15. Ne4 {[%emt 0:00:48]} Rfd8 {[%emt 0:07:12]} 16. Rfd1 {[%emt 0:00:25]} h6 {[%emt 0:02:24]} 17. b3 {[%emt 0:12:49]} a5 {[%emt 0:03:10]} 18. h3 {[%emt 0:04:33]} a4 {[%emt 0:03:27]} 19. Bf4 {[%emt 0:00:08]} axb3 {[%emt 0:02:39]} 20. axb3 {[%emt 0:00:06]} Bxd4 {[%emt 0:12:24]} ({Don't play} 20... Rxd4 21. Rxd4 Bxd4 22. Bxh6 $11) (20... Nf5 $17 21. Kf1 Rxd4 22. Rxd4 Nxd4) 21. Bxh6 {[%emt 0:00:11]} Be5 {[%emt 0:05:17]} 22. Bg5 {[%emt 0:03:29]} Rxd1+ {[%emt 0:01:12]} 23. Rxd1 {[%emt 0:00:02]} Nd5 {[%emt 0:00:13]} 24. Rc1 {[%emt 0:02:07]} f5 {[%emt 0:03:53]} 25. Nc5 {[%emt 0:00:35]} Kf7 {[%emt 0:00:32]} 26. Nd7 {[%emt 0:00:13]} Bc3 {[%emt 0:02:11]} 27. Nb6 {[%emt 0:08:01]} Be5 $18 {[%emt 0:06:26]} (27... Nxb6 $11 28. Rxc3 Rc8) 28. Nxa8 {[%emt 0:01:49]} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.11"]
[Round "5.32"]
[White "De Cuadro, Dionisio"]
[Black "Pustilnik, Iber"]
[Result "1/2-1/2"]
[ECO "A25"]
[WhiteElo "1650"]
[BlackElo "1892"]
[Annotator "NA RC"]
[PlyCount "153"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 12,153,18,8,12,-18,0,11,32767,32767,32767,32767,14,8,20,-29,-10,-16,18,16,48,0,30,13,20,0,0,0,9,7,18,4,45,26,72,66,181,187,180,168,172,164,160,88,81,87,83,100,100,73,79,90,88,77,96,86,93,81,85,38,84,79,79,79,78,32,141,75,66,43,43,56,68,8,8,0,10,9,9,0,2,0,27,0,0,4,32767,5,0,32767,22,21,60,36,56,70,43,58,52,24,19,0,25,-38,-53,-104,-106,-89,-54,-43,-46,-51,-63,-56,-70,32767,32767,32767,32767,-235,-49,-197,-236,-225,-28,-267,0,-19,0,0,0,0,0,-8,0,0,0,0,0,-8,-8,-8,-8,0]} 1. c4 {[%emt 0:00:00]} e5 {[%emt 0:00:00]} 2. Nc3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:00]} 3. g3 {[%emt 0:00:00]} g6 {[%emt 0:00:00]} 4. Bg2 {[%emt 0:00:06]} Bg7 {[%emt 0:00:01]} 5. e3 {[%emt 0:00:27]} d6 {[%emt 0:00:25]} 6. Nf3 {[%emt 0:00:24] A25: English Opening vs King's Indian with ...Nc6 but without early d3.} Nf6 {[%emt 0:04:33]} 7. O-O {[%emt 0:00:25]} O-O {[%emt 0:00:07]} 8. b3 {[%emt 0:00:27] [#]} Bf5 $146 {[%emt 0:01:56]} ({Predecessor:} 8... Be6 9. Bb2 Qd7 10. d4 Bh3 11. dxe5 Bxg2 12. Kxg2 dxe5 13. Qxd7 Nxd7 14. Rad1 Nc5 {0-1 (46) Ventimiglia,P-Sanchez,F Chivilcoy 1997}) 9. d3 {[%emt 0:05:29]} Qc8 {[%emt 0:14:18]} 10. Re1 {[%emt 0:00:24]} Bh3 {[%emt 0:00:37]} 11. Bh1 {[%emt 0:00:09]} h6 {[%emt 0:06:24]} 12. Bb2 {[%emt 0:00:40]} Re8 {[%emt 0:06:32]} 13. e4 {[%emt 0:04:06]} Bg4 {[%emt 0:01:10]} 14. Qd2 {[%emt 0:00:03]} Nd8 {[%emt 0:04:55]} 15. Nd5 {[%emt 0:01:54]} Kh7 {[%emt 0:02:31]} 16. Rac1 {[%emt 0:03:04]} (16. d4 $14) 16... c5 {[%emt 0:01:16]} 17. b4 {[%emt 0:00:49]} b6 {[%emt 0:00:41]} 18. bxc5 {[%emt 0:00:53]} bxc5 {[%emt 0:00:33]} 19. Bc3 {[%emt 0:03:28]} Ne6 {[%emt 0:09:24]} 20. Rb1 {[%emt 0:00:51]} Rb8 {[%emt 0:00:55]} 21. Qc2 {[%emt 0:01:22]} Bxf3 {[%emt 0:13:09]} 22. Bxf3 {[%emt 0:00:03]} Ng5 {[%emt 0:00:11]} 23. Bg2 {[%emt 0:01:21]} Nxd5 {[%emt 0:00:38]} ({Black should try} 23... Ne6 $14) 24. Rxb8 {[%emt 0:01:53]} ({But not} 24. exd5 $6 Qf5 $14) ({Don't take} 24. cxd5 $6 Nh3+ 25. Kh1 Qd7 $14) 24... Qxb8 {[%emt 0:00:12]} 25. cxd5 {[%emt 0:00:08]} ({Much less strong is} 25. exd5 $6 f5 $16) 25... Kg8 {[%emt 0:02:52]} 26. h4 {[%emt 0:00:40]} Nh7 {[%emt 0:00:07]} 27. Bh3 {[%emt 0:00:26]} ({White should play} 27. Rb1 Qa8 28. Qb3) 27... Qc7 {[%emt 0:01:47]} 28. Rb1 {[%emt 0:08:16]} Rb8 {[%emt 0:00:28]} 29. Rxb8+ {[%emt 0:01:03]} Qxb8 {[%emt 0:00:05]} 30. Qb2 {[%emt 0:03:25]} Qb6 {[%emt 0:01:08]} 31. a4 {[%emt 0:04:07]} Qxb2 {[%emt 0:03:09]} 32. Bxb2 {[%emt 0:00:01]} Bf6 {[%emt 0:00:17]} 33. Bc3 {[%emt 0:01:44]} Bd8 {[%emt 0:00:15]} 34. Kg2 {[%emt 0:01:35]} Kf8 {[%emt 0:01:15]} 35. Bd7 {[%emt 0:01:13]} ({Better is} 35. Bc8 $16) 35... Nf6 {[%emt 0:00:27]} 36. Bb5 {[%emt 0:01:05]} Ne8 {[%emt 0:03:15]} 37. Bd2 {[%emt 0:00:21]} h5 {[%emt 0:00:11]} 38. f4 {[%emt 0:01:45]} (38. Ba6 $16) 38... f6 {[%emt 0:00:32]} (38... Nc7 $14) 39. fxe5 {[%emt 0:01:32]} ({Better is} 39. f5 gxf5 40. exf5) 39... fxe5 {[%emt 0:00:08]} 40. Bh6+ {[%emt 0:01:22]} Kf7 {[%emt 0:00:50]} 41. Kf3 {[%emt 0:00:49]} Nc7 {[%emt 0:00:43] [#]} 42. Bc6 {[%emt 0:00:32]} (42. Bc4 $1 $16) 42... Na6 {[%emt 0:01:45]} 43. Bb5 {[%emt 0:01:36]} Nb4 {[%emt 0:00:27]} 44. Bd2 {[%emt 0:02:48]} Nc2 {[%emt 0:05:02]} 45. Bd7 {[%emt 0:03:23]} Nd4+ {[%emt 0:02:01]} 46. Kf2 {[%emt 0:00:31]} Bb6 {[%emt 0:00:43]} 47. Kg2 {[%emt 0:01:11]} (47. a5 $5 {[%cal Ra5b6]} Bd8 48. a6 $11) 47... Ke7 {[%emt 0:00:20]} 48. Bc8 {[%emt 0:02:37]} Bc7 {[%emt 0:01:06]} 49. Bg5+ {[%emt 0:01:52]} Kf7 {[%emt 0:00:10]} 50. g4 {[%emt 0:00:36]} hxg4 {[%emt 0:01:14]} 51. Bxg4 {[%emt 0:00:19]} Ba5 {[%emt 0:00:59]} 52. h5 {[%emt 0:00:41]} gxh5 {[%emt 0:00:11]} 53. Bxh5+ {[%emt 0:00:02]} Kg7 {[%emt 0:00:21]} 54. Be7 {[%emt 0:01:20]} Bc7 {[%emt 0:00:08]} 55. Kg3 {[%emt 0:01:54]} Nb3 {[%emt 0:01:05]} 56. Be8 {[%emt 0:01:20]} a6 {[%emt 0:01:03]} 57. Bh5 {[%emt 0:01:36]} (57. Bg5 $11) 57... Nc1 {[%emt 0:00:15]} 58. Kg4 {[%emt 0:00:20]} Nxd3 {[%emt 0:00:12]} 59. Kf5 {[%emt 0:00:13]} Nf4 {[%emt 0:01:04]} 60. Bd1 {[%emt 0:01:29]} c4 {[%emt 0:00:12]} 61. Bf6+ {[%emt 0:01:02]} Kf8 {[%emt 0:01:32]} 62. Bg5 {[%emt 0:00:19]} Nd3 {[%emt 0:00:13]} 63. Bh6+ {[%emt 0:01:23]} Ke7 {[%emt 0:00:16]} 64. Bg5+ {[%emt 0:00:04]} Kd7 {[%emt 0:00:07]} 65. Bg4 {[%emt 0:01:24]} (65. Bd2 $17) 65... Kc8 {[%emt 0:00:36]} (65... c3 $19 66. Kf6+ Ke8 67. Bh5+ Kd8 68. Ke6+ Kc8) 66. Kf6+ {[%emt 0:01:03]} (66. Bd2 $17) 66... Kb7 {[%emt 0:00:22]} 67. Ke7 {[%emt 0:00:16]} c3 $2 {[%emt 0:00:22]} ({Black should play} 67... Nf2 $19 68. Be2 c3 $19 69. Bh6 Nxe4) 68. Be2 $2 {[%emt 0:00:41]} (68. Bd1 $17) 68... Nb4 $2 {[%emt 0:00:37]} 69. Kd7 {[%emt 0:00:39]} c2 {[%emt 0:00:22]} 70. Bc4 {[%emt 0:01:16]} Bb8 {[%emt 0:00:21]} 71. Bd2 {[%emt 0:01:27]} Kb6 {[%emt 0:00:46]} 72. Kc8 {[%emt 0:01:12]} Kc5 {[%emt 0:01:40]} 73. Bb3 $1 {[%emt 0:01:29]} Kd4 {[%emt 0:01:14]} 74. Kxb8 {[%emt 0:01:41]} Kxe4 {[%emt 0:00:06]} 75. Kc7 {[%emt 0:00:38]} Nxd5+ {[%emt 0:00:41]} 76. Kxd6 {[%emt 0:00:25]} Nb4 {[%emt 0:02:55]} 77. Kc5 $11 {[%emt 0:01:20]} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.12"]
[Round "6.1"]
[White "Acosta, Pablo Ismael"]
[Black "Vazquez, Guillermo"]
[Result "1/2-1/2"]
[ECO "C67"]
[WhiteElo "2416"]
[BlackElo "2524"]
[Annotator "TA"]
[PlyCount "40"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,40,26,22,46,35,28,23,32,8,12,-1,3,8,24,14,14,14,17,22,19,0,0,0,0,0,0,-12,-11,-8,-9]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 Be7 7. Bf1 O-O {C67: Ruy Lopez: Berlin Defence: 4 0-0 Nxe4.} 8. d4 Nf5 9. Nf3 d5 {White has an edge.} 10. Bf4 Bd6 11. Qd2 Bxf4 12. Qxf4 Qd6 {[#]} 13. Qxd6 $146 ({Predecessor:} 13. Qd2 Qf6 14. c3 Nd6 15. Ne5 Ne4 16. Qe3 Nxe5 17. dxe5 Qb6 18. Qxb6 axb6 19. c4 {½-½ (56) Sprenger,J (2511)-Pliester,L (2383) Netherlands 2009}) 13... Nxd6 {The position is equal.} 14. Nc3 Be6 15. Nb5 $36 {[%mdl 2048] White has the initiative.} Ne8 16. Ne5 a6 17. Nxc6 {[#] Strongly threatening Ne7+.} axb5 18. Nb4 Nd6 19. Re5 c6 20. Rae1 Rfe8 {Accuracy: White = 100%, Black = 100%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.12"]
[Round "6.2"]
[White "Hernandez Guerrero, Gilberto"]
[Black "Delgado Ramirez, Neuris"]
[Result "1/2-1/2"]
[ECO "B02"]
[WhiteElo "2557"]
[BlackElo "2634"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,56,-9,-6,24,10,23,0,2,0,24,8,4,0,6,0,1,8,17,4,11,4,4,6,60,41,41,16,25,42,38,33,33,36,52,0,0,0,0,0,0]} 1. e4 Nf6 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O c5 6. Re1 Nc6 7. c3 e6 8. d4 cxd4 9. cxd4 d5 10. e5 Ng8 {B52: Sicilian: Moscow Variation with 3...Bd7.} 11. b3 {[#]} h5 $146 ({Predecessor:} 11... Bb4 12. Re2 Nge7 13. a3 Ba5 14. Qd3 a6 15. b4 Bb6 16. Bb2 Ng6 17. g3 Ba7 {1-0 (55) Schmid,N (1956)-Schwander,L (1746) Winterthur 2012}) 12. Ba3 Bxa3 13. Nxa3 Nge7 14. Qd2 Nf5 15. Rac1 Qe7 16. Nc2 O-O 17. g3 Rfc8 18. Kg2 Rc7 19. Ne3 Nxe3+ 20. Rxe3 a5 ({Better is} 20... Rac8 $11) 21. Rec3 Rac8 22. h4 Nb4 23. Rxc7 Rxc7 24. Rxc7 Qxc7 25. a3 Nc2 $1 26. a4 ({White should play} 26. Qg5 $1 $14 Nxa3 27. Qxh5) 26... Nb4 $11 {The position is equal.} 27. Kf1 Qc2 28. Qxc2 Nxc2 {Accuracy: White = 92%, Black = 94%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.12"]
[Round "6.3"]
[White "Lima, Darcy"]
[Black "Munoz Perez, Rolando"]
[Result "1-0"]
[ECO "E16"]
[WhiteElo "2526"]
[BlackElo "2130"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,72,0,0,0,0,0,0,0,2,8,16,0,76,79,63,63,74,72,121,85,214,210,314,309,410,427,513,454,583,562,573,580,751,744,691,729,779,758,827,760,956,962,960,943,928,914,945,847,29988]} 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Nc6 6. Nc3 Bxc3 7. Bxc3 Ne4 8. Rc1 d6 9. Bg2 O-O 10. O-O Nxc3 11. Rxc3 e5 12. d5 Nb8 {[%cal Bc6b8,Bb8a6,Ba6c5,Bc5a4][%mdl 32]} 13. Nd2 a5 14. c5 {E11: Bogo-Indian.} Na6 15. cxd6 cxd6 16. Nc4 {The position is equal.} Qd8 $1 17. Qb3 {next Qb6 is good for White.} Nc5 18. Qb6 {[#]} Qxb6 $146 (18... Na4 $1 $11 19. Qxd8 Rxd8) ({Predecessor:} 18... Na4 19. Qxd6 Nxc3 20. bxc3 Qxd6 21. Nxd6 f6 22. c4 b6 23. Rb1 Ra6 24. Nxc8 Rxc8 25. d6 Rd8 26. Bb7 Ra7 27. Bd5+ {1-0 (27) Gupta,A (2643)-Amin,B (2608) Dubai 2012}) 19. Nxb6 $16 Ra6 20. Nc4 $1 $36 {[%mdl 2048] White is more active.} Na4 {[#]} 21. Rb3 $1 Rd8 22. Rc1 b6 {[#]} (22... Nc5 $16 {keeps fighting.}) 23. Nxd6 $1 $18 {[%mdl 512]} Bg4 (23... Nc5 {is a better defense.}) (23... Rxd6 24. Rxc8+) 24. Nb7 Rb8 25. d6 Ra7 {White is clearly winning.} 26. Rc4 Bd7 27. Rc7 Be6 28. Rb5 g6 29. b3 Nb2 30. a4 Kg7 31. Kf1 Bc8 32. Rxb6 Bxb7 33. Rbxb7 Raxb7 34. Bxb7 Rd8 35. d7 Kf6 36. Bc6 Ra8 {Accuracy: White = 100%, Black = 35%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.12"]
[Round "6.4"]
[White "Hungaski, Robert"]
[Black "Garcia Palermo, Carlos"]
[Result "1-0"]
[ECO "B19"]
[WhiteElo "2504"]
[BlackElo "2434"]
[Annotator "TA"]
[PlyCount "129"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,129,19,35,41,51,5,32,31,22,32,31,8,21,0,19,0,8,0,0,0,0,-19,-16,-20,-23,-16,0,-33,26,55,81,17,23,23,41,23,23,23,23,14,36,25,33,0,0,0,0,0,0,0,0,0,29,25,43,35,203,186,174,186,201,200,381,385,375,381,379,350,350,343,429,426,579,518,513,505,489,487,435,320,245,312,305,305,277,301,275,235,816,630,1234,1228,4134,2496,2849,2664,29966,29967,29967,29968,29967,29966,29974,29968,29969,29966]} 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bd2 Ngf6 12. O-O-O Bd6 13. Kb1 Qc7 14. Ne4 {B19: Classical Caro-Kann: 4...Bf5 main line.} Bf4 15. c4 Nxe4 16. Qxe4 {White is slightly better.} Bxd2 17. Rxd2 Nf6 18. Qe3 Ng4 19. Qe4 Nf6 20. Qe2 Qf4 {[#]} 21. Rh4 $146 ({Predecessor:} 21. Rd3 O-O 22. Rh4 Qf5 23. Ne5 Rac8 24. g4 Qh7 25. b3 Rfd8 26. Kb2 b5 27. Rh1 Qe4 28. Qxe4 Nxe4 {½-½ (41) Onder,E (2216)-Broniek,M (2235) LSS email 2008}) 21... Qf5+ 22. Kc1 O-O 23. Ne5 Rad8 24. Qf3 Qg5 25. g3 Rd6 26. Kc2 Rfd8 (26... Nd7 $15 27. Nxd7 Rxd7) 27. Rd3 $11 Rc8 28. Qe3 (28. Rf4 $16) 28... Qxe3 29. fxe3 Nd7 30. Nxd7 (30. Ra3 {feels hotter.} a6 31. Rb3 Rc7 32. c5 Rd5 33. Nc4) 30... Rxd7 $14 {[%mdl 4096] Endgame KRR-KRR} 31. Ra3 a6 32. Re4 c5 33. Kc3 Rdc7 34. Ra5 cxd4+ 35. Rxd4 f6 36. b3 Kf7 37. Rd6 Ke7 38. Rb6 g6 39. g4 Rg8 40. hxg6 e5 $2 (40... Rxg6 $14 41. Rh5 Kf7) 41. Rd5 Rxg6 {[#]} 42. Rxe5+ $1 {[%mdl 576] Pin} Kf7 (42... fxe5 43. Rxg6) 43. Re4 f5 $2 (43... Kg7 {might work better.} 44. Rf4 Rf7) 44. Rxg6 $18 Kxg6 {KR-KR} 45. Re6+ Kg5 46. gxf5 h5 47. e4 h4 48. Rg6+ Kh5 49. Rg8 Rh7 50. f6 {aiming for e5.} h3 51. Rg7 Kh6 52. Rg1 h2 53. Rh1 Kg6 54. e5 Rh4 55. b4 Kf7 56. c5 Ke6 $2 (56... Rh3+ 57. Kd4 Ke6) 57. Kb3 a5 58. a3 {[%cal Ba2a3,Ba3b4][%mdl 32]} axb4 59. axb4 Rh7 60. Kc4 Kxe5 {[#]} 61. f7 $1 {[%mdl 576] Deflection. White mates.} Rxf7 62. Rxh2 Ke6 63. Rd2 Rd7 64. Re2+ Kf6 65. Re4 {Accuracy: White = 88%, Black = 58%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.12"]
[Round "6.5"]
[White "Liascovich, Lucas"]
[Black "Rodriguez Vila, Andres"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "2425"]
[BlackElo "2492"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,91,0,0,16,6,18,0,12,6,16,0,35,10,43,24,25,27,42,35,17,27,36,17,59,56,61,32,53,12,12,-33,23,10,33,0,0,0,0,0,0,0,0,-10,0,0,0,-54,0,0,210,218,169,184,515,505,514,490,502,501,842,779,1033,998,1089,1077,29974,29975,29979,29980,29981,29982,29981,29978,29978,29976]} 1. d4 e6 2. Nf3 Nf6 3. e3 c5 4. Bd3 Nc6 5. O-O b6 6. b3 Bb7 7. Bb2 Be7 8. Nbd2 O-O 9. a3 Rc8 10. Re1 Re8 {[#] A47: 1 d4 Nf6 2 Nf3 b6: Torre, London and Colle Systems.} 11. dxc5 $146 ({Predecessor:} 11. Rc1 Bf8 12. c4 cxd4 13. exd4 d5 14. Nf1 dxc4 15. bxc4 g6 16. Ne3 Bg7 17. Bb1 Na5 18. Ne5 Nd7 19. Ba2 Nxe5 20. dxe5 h5 21. c5 Rxc5 22. Rxc5 bxc5 {0-1 (30) Rodriguez Vila,A (2508)-Mareco,S (2481) Buenos Aires 2008}) 11... Bxc5 12. b4 Bf8 {The position is equal.} 13. c4 d5 14. e4 dxc4 15. Nxc4 b5 16. Ne3 a6 17. e5 Nd7 18. h4 {And now Bxh7+! would win.} h6 19. Qe2 Qc7 {[%cal Rd7e5]} 20. Rac1 Qb8 $1 {[%cal Rd7e5]} 21. Ng4 Ne7 22. h5 Rxc1 23. Bxc1 (23. Rxc1 {is interesting.} Rc8 24. Bc2 Qa8 25. Qe3 Bxf3 26. gxf3 Qd5 27. Qe4) 23... Nf5 24. Ngh2 Be7 (24... Qc7 $15) 25. Bxf5 $11 exf5 26. e6 (26. Qd3 $5 {[%cal Rd3d7]} Qc8 27. Qxf5 $11) 26... Bd6 27. exf7+ Kxf7 28. Qa2+ Kf8 29. Rd1 Nb6 30. Nf1 Bxf3 31. gxf3 Nc4 32. Ne3 (32. Qb1 $11) 32... Qb7 ({Better is} 32... Qd8 $1 $15 33. f4 Qh4) 33. Kg2 $36 {[%mdl 2048] White is pushing.} ({Avoid the trap} 33. Nxc4 $2 Qxf3 34. Ne3 Rxe3 $19) 33... Rxe3 $2 (33... Qf7 $11 {and Black is okay.} 34. Nxc4 Bb8) 34. Bxe3 $18 ({Weaker is} 34. fxe3 Qf7 $14) 34... Qf7 35. Qc2 {Strongly threatening Bc5.} Qxh5 $2 {[#]} (35... Kg8 {is a better chance.}) 36. Bc5 $1 Bxc5 37. bxc5 {[%mdl 4096] Endgame KQR-KQN} Ne5 38. Qe2 Qg5+ (38... Nf7 $142 39. Qd3 Qg6+ 40. Kf1 Qe6) 39. Kf1 Ng6 40. c6 {[%cal Bc5c6,Bc6c7][%mdl 32] c7 would kill now.} Qh4 41. Qd3 Ne7 42. c7 {White mates.} Kf7 {[#]} 43. Qb3+ {Played: Qd3-d7} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.12"]
[Round "6.6"]
[White "Lopez Azambuja, Nicolas"]
[Black "Hoffman, Alejandro"]
[Result "1/2-1/2"]
[ECO "A55"]
[WhiteElo "2310"]
[BlackElo "2472"]
[Annotator "TA"]
[PlyCount "35"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,18,43,39,33]} 1. d4 d6 2. Nf3 Nf6 3. c4 Nbd7 4. Nc3 e5 5. e4 Be7 6. Be2 O-O 7. O-O c6 8. Re1 a6 9. Rb1 b5 {[#] has lost popularity (9...Re8). A55: Old Indian Defence with Nf3 and e4.} {Predecessor:} 10. b4 $146 Bb7 11. dxe5 Nxe5 12. Nxe5 dxe5 13. Be3 Qc7 14. Qc2 Rad8 15. Rec1 Rd7 16. c5 Bc8 17. a4 Rdd8 18. Ra1 {0-1 (37) Dunis,A (2505)-Iuldachev,S (2480) Moscow 2006} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.12"]
[Round "6.7"]
[White "Guerrero, Alvaro"]
[Black "Roselli Mailhe, Bernardo"]
[Result "1/2-1/2"]
[ECO "C44"]
[WhiteElo "2094"]
[BlackElo "2433"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,89,0,0,0,0,0,0,0,19,21,22,18,29,28,25,0,22,1,6,-33,-38,-30,-27,-37,-25,-32,-27,-25,-35,-22,-29,-58,-46,-79,-80,-75,-88,-96,-87,-74,-14,-18,-6,-16,0,-12,0,-10,0,0,0,0,0,0,0,0,24,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. d3 Nf6 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. Re1 d5 8. Nbd2 Re8 9. c3 {A07: Réti Opening: New York and Capablanca Systems.} a5 10. a4 dxe4 11. dxe4 b6 12. Bf1 Ba6 13. Bxa6 Rxa6 {[#]} 14. Qe2 $146 ({Predecessor:} 14. Qb3 Ra8 15. Nc4 h6 16. Ne3 Qd3 17. Qc4 Qxc4 18. Nxc4 Rad8 19. Be3 {½-½ (19) Rapoport,V (2185)-Stimpel,F (2162) Bad Sooden 2006}) 14... Ra8 15. Qc4 Na7 {[%cal Bc6a7,Ba7c8,Bc8d6,Bd6e4][%mdl 32]} 16. Nf1 Nc8 17. Qc6 Nd6 18. Bg5 Qd7 19. Nxe5 Qxc6 20. Nxc6 {[#] e5 is the strong threat.} Ndxe4 21. Bf4 Nd5 22. Be5 Nc5 {Threatens to win with ...Nd3.} 23. Rad1 Bxe5 24. Nxe5 Nf6 25. Rd4 {[#]} Nfd7 $1 {[%mdl 512]} 26. Nf3 (26. Rxd7 Nxd7) 26... Rxe1 27. Nxe1 {next b4 is good for White.} Ne5 (27... Nf8 $17) 28. Ne3 $11 Nc6 29. Rc4 Ne5 30. Rd4 Nc6 31. Rc4 Re8 32. Nf3 {Hoping for b4.} Re4 33. Rxe4 Nxe4 {[%mdl 4096] Endgame KNN-KNN} 34. Nd5 Nc5 35. Nd2 $1 Nd8 36. b3 Nde6 {The position is equal.} 37. f3 h5 38. Kf2 Kf8 39. Ke3 Ke8 40. h4 Kd7 41. g4 Kd6 42. Nf6 Ke7 43. Nd5+ Kd6 44. Nf6 Ke7 45. Nd5+ {Accuracy: White = 88%, Black = 97%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.12"]
[Round "6.8"]
[White "Dominguez, Facundo"]
[Black "Tristan, Leonardo"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2135"]
[BlackElo "2533"]
[Annotator "TA"]
[PlyCount "106"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,106,52,47,31,48,44,38,-30,16,8,18,0,-4,-8,0,-1,-6,-10,-1,-14,-3,-4,-5,-13,0,-19,5,5,14,10,54,46,74,77,48,25,81,91,96,102,109,20,91,42,40,-5,-1,-14,-14,-21,50,57,39,20,8,8,71,74,391,-26,-16,-16,-16,-91,-60,-44,-44,-60,-44,-44,-44,-45,-63,-54,-40,-80,-80,-127,-97,-136,-160,-183,-169,-216,-209,-266,-266,-426,-411,-404,-386,-600,-582,-6681,-7304,-29984,-474]} 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Bc4 Bg4 6. Nge2 Nc6 7. f3 {B01: Scandinavian Defence.} Be6 8. Bxe6 fxe6 9. Nf4 {[#]} (9. O-O $14) 9... e5 $146 (9... O-O-O $5 {[%cal Re6e5]} 10. O-O Nxd4 $11) ({Predecessor:} 9... O-O-O 10. Nxe6 Rd6 11. Ng5 Rxd4 12. Qe2 e5 13. O-O Bb4 14. Nce4 Rd7 15. c3 Be7 {½-½ (48) Chulivska,V (2338)-Iljin,T (2416) Donetsk 2009}) 10. dxe5 Qxe5+ 11. Qe2 (11. Kf2 {is interesting.} Rd8 12. Nd3 Qh5 13. Re1 e6 14. Rxe6+ Kf7 15. Re1) 11... Qxe2+ 12. Nfxe2 Nb4 13. Kd1 $1 O-O-O+ 14. Bd2 e5 15. a3 Nc6 {[%cal Bb4c6,Bc6a5,Ba5c4][%mdl 32]} 16. Ng3 Bc5 17. Kc1 Bd4 18. Re1 Rd7 19. Nce4 Rhd8 20. Bg5 Na5 21. Kb1 Nc4 22. c3 Bb6 23. Ka2 h6 (23... Rf8 $11) 24. Bxf6 $16 (24. Nxf6 $6 gxf6 25. Bxf6 Rd2 $11) 24... gxf6 25. Nf5 $1 a5 26. a4 ({Inferior is} 26. Nxf6 Rf7 $17) (26. Re2 $16) 26... h5 (26... Nd2 $1 $11) 27. g4 ({Much worse is} 27. b3 $6 Nd2 $11) 27... Rd3 28. Nxf6 Rxf3 29. Nxh5 Rf2 $36 {[%csl Gc4][%cal Rf2b2][%mdl 2048] White is under pressure.} 30. Rab1 Rdd2 (30... Rd3 $11 31. Ka1 Rxh2) 31. Kb3 $14 Nxb2 32. Rxe5 {And now Re8+ would win.} Kb8 33. Nf6 Rxh2 (33... Nd3 $1 $11 {keeps the balance.} 34. Re8+ Ka7) 34. g5 $16 Rdg2 $2 {[%mdl 8192]} (34... Ka7 $16 {is tougher.}) 35. Nh4 $2 (35. Nd7+ $18 Ka7 36. Nxb6 cxb6 37. Nd6) 35... Rxh4 $11 36. Rxb2 Rg3 37. Rd2 (37. Re8+ $11 {remains equal.} Ka7 38. Ne4) 37... Rb4+ 38. Kc2 Rxa4 {Hoping for ...Ra2+.} 39. Ne4 Ra2+ 40. Kb3 Rxd2 41. Nxg3 $15 {[%mdl 4096] Endgame Strongly threatening g6. KRB-KRN} Rg2 42. Ne4 Ka7 43. Re6 Be3 44. Re5 Ka6 45. c4 b6 46. Re6 Rg4 47. g6 Bd4 48. Re7 Rxg6 49. Rxc7 $2 (49. Rd7 Be5 50. Rd5) 49... Re6 $19 50. Nd2 Re3+ 51. Ka4 (51. Kc2 $142 a4 52. Rd7) 51... Re2 52. Nf3 Bc5 53. Rd7 Ra2+ {Accuracy: White = 52%, Black = 65%.} (53... Re3 $142 54. Ra7+ Kxa7 55. Nd2 Rd3 56. Ne4 {[#]} Rd4 $1 {[%mdl 512]} 57. Nf6 Ka6 58. Kb3 a4+ $1 {[%mdl 512]} 59. Kc2 a3 60. Kb3 Rd3+ 61. Kc2 Rh3 62. Nd7 Bd4 63. Nb8+ Kb7 64. c5 Kxb8 65. Kd2 a2 66. c6 a1=Q 67. c7+ Kxc7 68. Ke2 Qb2+ 69. Kf1 Rh1#) 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.12"]
[Round "6.9"]
[White "Larrea, Manuel"]
[Black "Meza, Anahi"]
[Result "1-0"]
[ECO "B42"]
[WhiteElo "2243"]
[BlackElo "2046"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,83,60,47,46,41,41,33,41,41,24,29,37,27,52,23,18,27,59,74,136,125,117,123,207,177,233,224,248,253,233,221,238,201,200,181,265,268,262,196,201,193,260,255,254,219,206,0,0,0,0,6,25,0,138,135,273,263,421,384,415,345,354,354,438,433,532,501,535,528,851,849]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5 6. Nb3 Be7 7. Qg4 g6 8. Qe2 d6 {B42: Sicilian: Kan Variation: 5 Bd3.} 9. O-O Nd7 10. Na3 Ne5 {White is slightly better. 10...Ne5 is better than 10...Qc7.} 11. Nc4 Nxc4 12. Bxc4 Qc7 13. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} b6 {[#]} 14. a5 $146 ({Predecessor:} 14. Rd1 Bb7 15. Bd3 h5 16. h3 Nf6 17. Bg5 h4 18. Qf3 Nd7 19. Bxe7 Kxe7 20. Qe3 {0-1 (59) Yu,Y (2760)-Hansen,E (2629) chess.com INT 2018}) 14... b5 15. Bd3 $36 {[%mdl 2048] White has good play.} e5 16. c4 bxc4 (16... b4 $142) 17. Bxc4 $16 Nf6 18. Bh6 Ng4 {[#]} (18... Bf8 $16 19. Bg5 Be7) 19. Bd5 $1 $18 {Rac1 is the strong threat.} Nxh6 (19... Qa7 $142) 20. Bxa8 O-O 21. Bd5 Bg5 22. Nc1 Qa7 23. Bc4 Kg7 24. Qd3 Rd8 (24... f5 {is a better defense.}) 25. Na2 f5 26. Nc3 fxe4 27. Nxe4 Bf5 (27... Be7 {was worth a try.} 28. Bd5 Bd7) 28. Bd5 Ng4 29. Qb3 Rb8 30. Qa3 $2 {[#]} (30. Qf3 $18 Bxe4 31. Bxe4) 30... Bxe4 $1 $11 31. Bxe4 {Hoping for Qc3.} Nxf2 32. Rxf2 Be3 33. Raf1 Qd4 (33... Rf8 $11) 34. Qd3 Qc5 (34... Qxd3 $16 35. Bxd3 Rxb2 {[%mdl 64] Pin}) 35. b3 $18 Rd8 $2 (35... Rb5 36. g3 Qd4) 36. Qd5 Qa7 37. Qb7+ Qxb7 38. Bxb7 d5 39. g3 {White is clearly winning.} Bxf2+ 40. Rxf2 e4 41. Rc2 {Played: Rf2-d2} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.12"]
[Round "6.10"]
[White "Michailov, Matias"]
[Black "Diaz Hollemaert, Nahuel"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2262"]
[BlackElo "2450"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,79,51,64,30,27,27,48,33,52,27,22,27,83,47,131,117,123,87,87,54,64,29,51,48,144,58,74,53,100,74,230,224,222,143,158,157,382,313,325,322,299,256,368,204,236,242,234,239,229,219,283,287,268,242,243,146,135,60,780,777,1278,1068,6044,5795,3047,2511,29995,29996]} 1. e4 g6 2. d4 d6 3. Nc3 a6 4. a4 b6 5. Nf3 Bg7 6. Bc4 e6 7. O-O Ne7 8. Qe2 {B06: Modern Defence.} O-O 9. Bf4 d5 10. Bb3 {White is slightly better.} Nbc6 11. Rad1 Bb7 12. Rfe1 {[#]} Nb4 $146 (12... Qd7 $11) ({Predecessor:} 12... Qd7 13. exd5 exd5 14. Ne5 Nxe5 15. Bxe5 Rae8 16. Bxg7 Kxg7 17. Qe5+ f6 18. Qf4 Nf5 {½-½ (29) Balashov,Y (2441)-Lopukhin,A (2287) Tambov 2013}) 13. Qd2 c6 (13... c5 $14) 14. a5 $36 {[%mdl 2048] Black must now prevent axb6. White is in control.} c5 15. dxc5 bxc5 16. exd5 Nbxd5 17. Be5 {Ne4 is the strong threat.} Rc8 18. Ne4 f6 {[#]} (18... c4 $1 $14 19. Ba2 Nf5) 19. Bg3 ({White should play} 19. Nfg5 $1 $16 {[%mdl 512]} Qd7 (19... fxg5 20. Bxg7) 20. Nxf6+ $1 {[%mdl 512]} Bxf6 21. Bxf6 Rxf6 22. c4) 19... c4 $14 20. Ba2 {Hoping for Nd6.} e5 21. b4 $1 cxb3 $2 (21... Kh8 $16) 22. Bxb3 $18 Qc7 23. c4 Nf4 24. Bxf4 {aiming for Nxf6+!} exf4 $2 (24... Bxe4 $16 {was necessary.} 25. c5+ (25. Rxe4 exf4 26. c5+ Kh8 $18) 25... Kh8) 25. c5+ Kh8 26. Nd6 Bxf3 27. gxf3 Rb8 (27... Ra8 $142 28. Nf7+ Rxf7) 28. Qxf4 (28. Nf7+ $142 Kg8 29. Qd6 Qxd6 30. cxd6 (30. Nxd6+ Rxb3 31. Rxe7 Rc3 $18)) 28... Nc6 ({Not} 28... Rxb3 $2 29. Nf7+ $1 {[%mdl 512]} Rxf7 30. Qxc7 $18) 29. Bd5 Ne5 30. Qe3 Rb4 31. Rb1 Qxa5 {[#]} 32. Ra1 $1 {[%cal Ra1a5]} Ra4 33. Rxa4 Qxa4 34. f4 Bh6 35. Ne4 ({Better is} 35. Qe4 $16 Qxe4 36. Rxe4) 35... Rd8 $2 {[%mdl 8192]} (35... Qb4 $14 36. Ra1 Qb5) 36. Nxf6 Bxf4 {[#]} 37. Qc3 {Played: Qe3-h3} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.12"]
[Round "6.11"]
[White "Menna Barreto, Felipe Kubiaki"]
[Black "Torella, Rodolfo"]
[Result "1/2-1/2"]
[ECO "D00"]
[WhiteElo "2395"]
[BlackElo "2081"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,61,1,-3,20,19,35,37,34,44,58,54,49,32,36,42,44,38,43,40,45,47,46,50,59,60,82,65,64,54,83,49,143,79,83,83,89,50,72,73,76,72,106,97,109,98,96,95,95,98,95,95]} 1. d4 d5 2. Bf4 Nf6 3. e3 e6 4. Nd2 c5 5. c3 Nc6 6. Ngf3 Bd6 7. Bg3 a6 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} 8. Bd3 {[#]} Nh5 $146 ({Predecessor:} 8... O-O 9. Ne5 Ne7 10. O-O b6 11. Bh4 Nf5 12. Bg5 h6 13. Bf4 Bb7 14. h3 Be7 {1-0 (42) Carlsen,M (2834)-Yu,Y (2736) Doha 2015}) 9. Bxd6 Qxd6 {White is slightly better.} 10. O-O g6 11. dxc5 Qxc5 12. c4 O-O 13. cxd5 exd5 14. Rc1 Qd6 15. h3 Re8 16. Nb3 $36 {[%mdl 2048] White has the initiative.} Ng7 17. Qd2 Ne6 18. Rfd1 Qe7 19. Be2 Rd8 20. Na5 Nxa5 21. Qxa5 Qd6 {[#]} (21... d4 $14) 22. Nd4 ({Better is} 22. Bc4 $1) 22... Nxd4 23. Rxd4 Be6 24. Bf3 Rac8 25. Rcd1 {White is better.} Rc5 26. Qb4 Rb5 {[#]} 27. Qd2 $1 Qb6 28. b3 Rc8 29. Bxd5 Bxd5 30. Rxd5 Rxd5 31. Qxd5 {Accuracy: White = 86%, Black = 85%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.12"]
[Round "6.12"]
[White "Vitoux, Colomban"]
[Black "Meskanen, Vesa"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2377"]
[BlackElo "2019"]
[Annotator "TA"]
[PlyCount "107"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,107,7,8,8,10,8,15,8,6,-7,-7,-12,0,0,0,-5,6,6,18,18,45,13,10,17,18,-5,0,-47,-53,-58,-54,-40,86,85,87,81,75,-59,-76,-209,-189,-213,-208,-221,-221,-257,-210,-279,-270,-329,-333,-322,-312,-802,-794,-736,-136,-136,-133,-165,-127,-127,-116,-115,-120,-131,-112,-166,-166,-186,-169,-154,-97,-101,-97,-125,-83,-85,-85,-78,-20,-15,-7,-31,-14,-32,-7,-45,-11,-13,-5,-41,-32,-25,-35,-31,0,-18,0,-30]} 1. Nf3 Nf6 2. b3 e6 3. Bb2 c5 4. e3 Nc6 5. Be2 d5 6. O-O {A05: Réti Opening: 1 Nf3 Nf6.} Bd6 7. d4 cxd4 8. exd4 O-O 9. c4 b6 10. Re1 Ba6 11. Nbd2 Rc8 12. Rc1 {[#]} Na5 $146 ({Predecessor:} 12... Ne4 13. cxd5 Bxe2 14. Qxe2 exd5 15. Nxe4 Re8 16. Qc2 dxe4 17. Rxe4 Ne5 18. Qxc8 Nxf3+ 19. gxf3 Qxc8 20. Rxc8 Rxc8 {½-½ (42) Ottlakan,P (1668)-Fridrik,R (1634) Hungary 2015}) 13. Ne5 Bb4 14. Bd3 Qe7 15. Re3 (15. c5 $5 {[%cal Rd3a6]} Bxd3 16. Nxd3 $14) 15... Ba3 16. Bxa3 Qxa3 17. c5 Bxd3 18. Nxd3 (18. Rxd3 $5 {[%cal Rb3b4]} Nc6 19. cxb6 Nxe5 20. Rxc8 Nxd3 21. b7 $11) 18... Nc6 $36 {[%mdl 2048] Black has the initiative.} 19. Nf3 bxc5 20. dxc5 d4 (20... Ne4 $15 {keeps the upper hand.}) 21. Re1 $1 $16 Rfd8 22. Rc4 Qa5 23. b4 (23. Qc2 $16) 23... Qxa2 $15 24. Nd2 (24. Rc2 $17 {keeps fighting.} Qa6 25. Rb2) 24... Rb8 25. Rc2 {[#]} Qa6 $1 {[%cal Ra6d3]} 26. Rc4 Nd5 27. Qb3 Qb5 {[%cal Rd5b4]} 28. Ra1 a5 29. Ne4 {and the idea Nd6 leaves White hopeful.} axb4 {aiming for ...Ra8.} ({Weaker is} 29... Ncxb4 30. Nd6 $17) 30. Nd6 Na5 {[%mdl 64] Double Attack} 31. Qa2 $2 (31. Qc2 Rxd6 32. Rxa5 Qxa5 33. cxd6) 31... Rxd6 $1 $19 32. Qxa5 Rdd8 $2 (32... Qxc4 $19 {has better winning chances.} 33. Nb2 Qe2 34. cxd6 Qxb2) 33. Qxb5 $17 Rxb5 34. Rxd4 f6 35. Kf1 e5 36. Rc4 b3 37. Rb1 Kf7 38. Rb2 (38. c6 $17) 38... Ke7 $19 39. Ke1 Ra8 40. Nc1 Kd7 ({Black should play} 40... Ra3 41. Kd2 g6) 41. Rxb3 $17 Kc6 {And now ...Ra1 would win.} 42. Rc2 Rxc5 43. Rxc5+ Kxc5 {[%mdl 4096] Endgame KRN-KRN} 44. Rb7 {[#]} g5 (44... Rg8 $1 $17 45. Nb3+ Kd6) 45. Rxh7 $11 Kd6 46. Kd2 Ke6 47. g3 Ra3 48. Rb7 Kf5 49. h3 Ke4 50. Rd7 Ra5 51. Ke2 Nc3+ 52. Kd2 Nd5 53. Ke2 $1 Nc3+ 54. Kd2 {Accuracy: White = 66%, Black = 72%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.12"]
[Round "6.13"]
[White "Trois, Francisco R.T."]
[Black "Mussanti, Diego"]
[Result "1/2-1/2"]
[ECO "A35"]
[WhiteElo "2141"]
[BlackElo "2330"]
[Annotator "TA"]
[PlyCount "235"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,234,-19,-20,19,-43,-41,-37,-54,-54,-66,-75,-62,-125,-137,-133,129,127,441,-29,-29,-25,-24,-40,-46,-56,-52,-57,-41,-49,-30,-27,-7,-11,0,0,0,-4,0,0,0,0,0,-13,0,0,0,-36,-24,-29,-25,-56,-49,-56,-35,-43,-22,-28,-38,-52,-40,-21,-27,-22,-23,-50,-45,-32,-29,-32,-29,-36,-24,-28,-29,-23,0,0,0,0,0,0,0,0,0,0,0,0,20,26,20,28,29,21,29,28,31,33,85,44,41,43,42,8,17,0,0,0,22,0,0,0,0,0,0,0,0,0,0,0,0,0,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,0,7,7,7,7,7,0,7,0,7,0,0,0,7,0,7,0,7,0,7,7,7,7,8,7,7,0,0,0,0,0,7,0,8,8,8,8,8,8,8,0,8,8,8,0,8,0,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 c5 2. c4 Nc6 3. Nc3 Nf6 4. e3 e6 5. d4 cxd4 6. exd4 d5 7. Bg5 Be7 8. Bd3 dxc4 9. Bxc4 O-O 10. O-O b6 11. Re1 Bb7 12. a3 Nd5 {E57: Nimzo-Indian: Rubinstein: Main Line: 7...Nc6 8 a3 dxc4 9 Bxc4 cxd4.} 13. Bxe7 (13. Bxd5 $11 exd5 14. Bxe7 Nxe7 15. Qd3) 13... Ncxe7 $15 14. Ne4 Nf5 {Black is slightly better.} 15. Qd2 {[#]} Rc8 $146 ({Predecessor:} 15... h6 16. Rad1 Rc8 17. Ba2 Qc7 18. Bb1 Qf4 19. Qd3 Qc7 20. Ne5 Rfd8 21. Qd2 Nde7 {1-0 (70) Van Coppenolle,K (2200)-Smailovic,O (2231) France 2004}) 16. Rac1 Nf6 17. Ng3 (17. Neg5 $1 $15) 17... Bxf3 $1 $17 18. Nxf5 {Threatening Rxe6.} Rxc4 $4 {[%mdl 8192]} ({Much weaker is} 18... exf5 $6 19. gxf3 Qd6 20. Bb3 $11) (18... Bxg2 $1 $17 {keeps the pressure on.} 19. Kxg2 exf5) 19. Rxc4 $16 {aiming for Rc8!} Bd5 $2 {[%mdl 8192] [#]} (19... exf5 $16 {is a better chance.} 20. gxf3 Nd5) 20. Ne3 $2 (20. Rc8 $1 $18 {[%cal Rc8d8][%mdl 512]} Qxc8 21. Ne7+ {[%mdl 64] Double Attack} Kh8 22. Nxc8 Rxc8 23. Rc1) 20... Bxc4 $11 21. Nxc4 Qc7 22. Ne3 Rd8 23. Rd1 h6 24. h3 Qb7 25. Qc2 Qa6 26. Qc4 Qa5 27. Qc7 Rf8 28. Qc6 Qh5 29. Rd2 Rd8 30. Qc7 Rd7 $1 {[%cal Rd7c7]} 31. Qc8+ Kh7 32. Qc2+ g6 33. Qc6 Kg7 34. Ng4 {Threatens to win with Nxf6.} (34. d5 {is more complex.} Qe5 35. d6 h5 36. g3 g5 37. b4) 34... Qd5 (34... Qa5 {looks sharper.} 35. Rd1 Qd5 36. Qxd5 Nxd5 37. Ne3 Ne7) 35. Qxd5 Nxd5 {[%mdl 4096] Endgame KRN-KRN} 36. Ne5 Rc7 37. g3 a5 38. h4 Rc1+ 39. Kg2 f6 40. Ng4 h5 41. Ne3 Kf7 42. Nxd5 exd5 {KR-KR} 43. Kf3 Ke6 44. Kf4 b5 45. Re2+ Kd6 46. Ke3 g5 47. hxg5 fxg5 48. f4 gxf4+ 49. Kxf4 Rd1 50. Ke3 Rh1 51. Rf2 Ke6 52. Rc2 Re1+ 53. Kf3 Kd6 54. Rh2 Re4 55. Rh4 Re1 56. Rxh5 Rb1 57. Rh6+ Kd7 58. Rh2 Ke6 59. g4 b4 (59... Kf6 $14) 60. axb4 axb4 61. Kf4 {Hoping for Re2+.} Rf1+ 62. Ke3 (62. Kg5 $5 {[%cal Rh2h6]}) 62... Rb1 {The position is equal.} 63. Rh6+ Ke7 64. Rh2 Ke6 65. Rh6+ Ke7 66. Kf4 Rxb2 67. Ke5 Rg2 68. Rb6 Rxg4 69. Kxd5 Rg5+ 70. Kc4 Kd7 71. Rb7+ Kd6 72. Rxb4 Rh5 73. Rb6+ Kd7 74. Rg6 Rf5 75. Kd3 Rh5 76. Rf6 Rg5 77. Ke4 Ra5 78. Rh6 Rb5 79. Rh3 Rg5 80. Kf4 Ra5 81. Rh7+ Kd6 82. Rh6+ Kd7 83. Ke4 Rg5 (83... Rb5 {is interesting.}) 84. Rh4 Ra5 85. Rf4 Rh5 86. Kd3 Rh6 87. Rf5 Rg6 88. Ke4 Rh6 89. Rg5 Rf6 90. Ra5 Rb6 91. Rd5+ Ke7 92. Re5+ Kd7 93. Kf5 Rh6 94. Ke4 Rg6 95. Rh5 Rf6 96. Rh7+ Kd8 97. Ke5 (97. d5 {with more complications.} Rg6 98. Ra7 Rh6 99. Kd4 Rd6 100. Ra2) 97... Ra6 98. d5 Rb6 99. Rf7 Ra6 100. Rh7 Rb6 101. Rh8+ Kd7 102. Rf8 Ra6 103. Rf7+ Kd8 104. Rg7 Rb6 105. Ra7 Rh6 106. Rb7 Ra6 (106... Kc8 {is more complex.} 107. Rg7 Kd8 108. Kd4 Rb6 109. Rh7 Ra6) 107. Kd4 Rh6 108. Rf7 Rg6 109. Kc5 Rh6 110. Rb7 (110. Rf8+ {looks sharper.} Kd7 111. Rf1 Rg6 112. Rh1 Kd8 113. Ra1) 110... Rg6 111. Rb6 (111. Ra7 {seems wilder.} Rh6 112. Ra8+ Kd7 113. Ra3 Kd8 114. Ra1) 111... Rxb6 112. Kxb6 {White threatens Kc6 and mate. KP-K} Kd7 113. Kc5 Kc7 114. d6+ Kd7 115. Kd5 Kd8 116. Kc6 {Intending d7 and mate.} Kc8 117. d7+ Kd8 118. Kd6 {Accuracy: White = 89%, Black = 92%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.12"]
[Round "6.14"]
[White "Coppola, Claudio"]
[Black "Soto, Nicolas"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "2314"]
[BlackElo "2002"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,57,29,19,29,26,26,30,33,14,34,23,59,59,58,58,63,52,88,35,23,14,132,125,145,127,156,145,188,193,328,302,302,298,306,295,306,301,308,304,820,811,1085,1076,1189,1156,29980,29980,2396,2376]} 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Bf4 e6 6. e3 Be7 {D10: Slav Defence: 3 cxd5 (without early Nf3) and 3 Nc3.} 7. Bd3 O-O 8. h3 Nc6 {White has an edge.} 9. Rc1 Qb6 10. Qe2 {[#]} a5 $146 ({Predecessor:} 10... Bd7 11. a3 Rfc8 12. Nf3 Be8 13. O-O Na5 14. Rc2 Nb3 15. Nd2 Nxd2 16. Qxd2 Qd8 {½-½ (57) Stern,R (2501)-Kuczynski,R (2505) Germany 2010}) 11. Nf3 $36 {[%mdl 2048] White has the initiative.} a4 12. a3 Bd7 13. Ne5 Rfc8 14. Bg5 (14. Nxd7 $16 Nxd7 15. O-O) 14... Be8 $1 $14 15. O-O Na5 {[#]} (15... Ne4 $11 {remains equal.} 16. Bxe7 Nxc3 17. Rxc3 Nxe7) 16. f4 $1 $16 Nb3 17. Rcd1 h6 18. Bh4 g6 19. Ng4 Kg7 (19... Qd8 $142 20. Nxh6+ Kg7) 20. Nxf6 Bxf6 21. Bxf6+ Kxf6 {[#]} 22. f5 $1 {[%cal Rf5g6][%mdl 512]} Kg7 (22... exf5 23. Nxd5+) 23. fxg6 f5 24. g4 Nxd4 $2 (24... Bxg6 25. gxf5 Bxf5 26. Bxf5 exf5 27. Rxf5 Qg6+ 28. Qg2 Ra6 29. Nxd5 Rc2) 25. exd4 $18 Qxd4+ 26. Kh2 {Played: Kg1-h1} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.12"]
[Round "6.15"]
[White "Curi, Gabriel"]
[Black "De Dovitiis, Alejo"]
[Result "0-1"]
[ECO "A53"]
[WhiteElo "2132"]
[BlackElo "2314"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,68,49,23,22,0,61,28,53,70,68,61,56,64,52,53,97,101,112,111,103,-63,-60,-55,-39,-42,-41,-66,-60,-86,-45,-39,-31,-35,0,0,0,0,0,0,0,0,0,-15,-11,-60,-77,-102,-110,-528,-181,-171,-155,-191,-185,-497,-489,-618,-616,-683,-669]} 1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. e4 e5 5. d5 Be7 6. g3 O-O {A53: Old Indian Defence without Nf3.} 7. Bg2 Ne8 {[#]} ({Black should play} 7... c6 $11) 8. Nh3 $146 ({Predecessor:} 8. Nf3 a5 9. O-O g6 10. Ne1 Ng7 11. Nd3 f5 12. Bd2 Bg5 13. Bxg5 Qxg5 14. f4 exf4 15. gxf4 {½-½ (21) Michenka,J (2352)-Adamek,J (2272) Czechia 2013}) 8... g6 {White has an edge.} 9. Bh6 Ng7 10. Qd2 a5 11. O-O Nf6 12. f3 Kh8 13. Nf2 Ng8 14. Be3 $1 f5 15. c5 $2 ({White should try} 15. f4 $16) 15... f4 $1 $15 {[%cal Rf4e3]} 16. gxf4 exf4 17. Bd4 $1 ({Don't blunder} 17. Bxf4 $2 Rxf4 18. cxd6 (18. Qxf4 $2 {too greedy.} Bg5 $19) 18... cxd6 $19) 17... dxc5 18. Be5 Bd6 $1 {[%cal Rd6e5]} 19. Nd3 Qg5 20. Bxd6 cxd6 21. Nb5 Qf6 22. Nc7 Rb8 23. Qxa5 Qd8 {And now ...b6 would win.} 24. Qb6 Ne8 25. Na8 $1 Qg5 26. Qa7 Bh3 {[%csl Gh3][%cal Rg5g2]} 27. Ne1 (27. Rf2 $5 {[%cal Ra7b8]} Nef6 28. Nc7 $11) 27... Nef6 $1 28. Nc7 {[#]} Nxe4 $1 $40 {[%mdl 640] Black has strong attack.} 29. Kh1 $2 {[%mdl 8192] [#]} (29. fxe4 $17 {is tougher.} f3 {[%mdl 64] Pin} 30. Qa3 (30. Rxf3 $2 Rxf3 {[%mdl 64] Pin} 31. Qa4 Rbf8 $19) 30... Bxg2 31. Ne6) 29... Qe7 $2 (29... Ng3+ $1 {[%mdl 512]} 30. Kg1 (30. hxg3 Bxg2+) 30... Nxf1 31. Kxf1 Bxg2+ 32. Nxg2 Qh5) 30. Qb6 $19 Ng5 31. Bxh3 Nxh3 32. Ng2 $2 (32. b4 {was the crucial defense.}) 32... Qd8 {Black is clearly winning.} 33. Qa5 {If only White now had time for Qc3+....} Nf6 34. b4 b6 {Accuracy: White = 56%, Black = 75%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.12"]
[Round "6.16"]
[White "Suarez, Pedro"]
[Black "Amura, Claudia"]
[Result "0-1"]
[ECO "D31"]
[WhiteElo "2063"]
[BlackElo "2245"]
[Annotator "TA"]
[PlyCount "48"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,106,28,18,23,24,14,14,10,18,6,21,-4,0,0,23,-14,-8,-37,66,-17,-9,-65,-74,-64,-81,-93,-91,-90,-85,-133,-130,-125,-129,-121,-111,-129,-129,-131,-126,-149,-104,-112,-112,-104,-102,-110,-104,-104,-101,-122,-102,-99,-99,-128,-107,-128,-106,-134,-135,-259,-248,-260,-281,-237,-185,-196,-198,-203,-304,-310,-298,-314,-406,-406,-342,-387,-342,-395,-386,-530,-514,-557,-551,-866,-810,-1352,-1205,-1145,-1093,-1046,-497,-2521,-1991,-10243,-9862,-6272,-6070,-2573,-2027]} 1. d4 d5 2. c4 e6 3. Nc3 a6 4. cxd5 exd5 5. Bf4 Nf6 6. e3 {D31: Queen's Gambit Declined: Semi-Slav without ...Nf6 (+ Marshall Gambit and Noteboom) and Exchange Variation lines without ...Nf6.} Bd6 7. Be5 c6 8. Nf3 {The position is equal.} Bg4 9. h3 Bxf3 {[#]} 10. Qxf3 $146 ({Predecessor:} 10. gxf3 Bxe5 11. dxe5 Nfd7 12. f4 Qe7 13. Rg1 g6 14. Qc2 Nc5 15. O-O-O Nbd7 16. Kb1 {½-½ (37) Bellaiche,A (2459)-Krejci,J (2578) Biel 2018}) 10... Bxe5 11. dxe5 Nfd7 12. Qg4 O-O 13. e6 f5 (13... fxe6 $15 14. Qxe6+ Rf7) 14. Qb4 (14. Qd4 $1 $14) 14... Qb6 $36 {[%mdl 2048] White is under pressure.} 15. Qd4 ({White should try} 15. Qxb6 $11 Nxb6 16. Ne2) 15... Qxd4 $15 16. exd4 Re8 17. O-O-O Rxe6 18. Bd3 g6 19. Rhe1 Nf8 20. Ne2 Nbd7 21. Nf4 Ree8 22. h4 Nf6 23. f3 Kf7 24. h5 g5 {Played: Nf8-e6} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.12"]
[Round "6.17"]
[White "Brizzi, Milagros Tatiana"]
[Black "Carbone, Diego"]
[Result "1-0"]
[ECO "B48"]
[WhiteElo "2022"]
[BlackElo "2239"]
[Annotator "TA"]
[PlyCount "49"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,99,0,29,0,8,-38,39,35,52,44,45,31,39,43,45,-29,55,27,62,47,39,43,100,0,0,-148,-16,-179,162,-157,35,46,42,47,114,77,141,103,73,77,181,196,1183,1127,29987,29988,29986,239,243,171,176,169,172,169,154,154,145,161,187,188,174,205,187,177,289,279,830,758,722,710,29978,29979,29991,29992,29992,29992,29992,29993,29993,29994]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. Be3 a6 7. Qd2 Nf6 8. O-O-O Bb4 9. f3 Ne5 10. Nb3 b5 11. Qd4 Be7 (11... Nc6 $5 {[%cal Rc6d4]} 12. Qd2 Ne5 $14) 12. Be2 {B48: Sicilian: Taimanov: 5 Nc3 Qc7 6 Be3 a6 without Be2.} Bb7 13. g4 d6 (13... b4 $15 14. Na4 Rc8) 14. g5 $14 {White is slightly better.} Nc6 $1 {[%cal Rc6d4]} 15. Qd2 Nd7 {[#]} 16. h4 $146 ({Predecessor:} 16. f4 Rc8 17. f5 exf5 18. exf5 Nce5 19. Rhf1 Nc4 20. Bxc4 Qxc4 21. Na5 Qc7 22. Nxb7 Qxb7 23. Nd5 Qc6 24. Nxe7 Kxe7 25. f6+ gxf6 26. gxf6+ Ke6 27. Qd3 Ne5 28. Qf5# {1-0 (26) Fumas Fontova,E (1637)-Pages Jane,J (1731) Balaguer 2011}) 16... b4 17. Na4 Rc8 18. h5 (18. Kb1 $14) 18... Na5 ({Black should try} 18... Nce5 $11 19. Kb1 Bc6) 19. Nxa5 Qxa5 20. b3 Bc6 21. a3 $1 {[%cal Ra3b4]} Rb8 (21... d5 $14 22. h6 gxh6 23. exd5 Qxd5) 22. axb4 (22. Nb2 $16) 22... Rxb4 $11 23. Rdg1 (23. Qc3 $11 {keeps the balance.} Rxa4 24. Qxc6 Ra1+ 25. Kb2 Ra2+ 26. Kb1 Ra1+ 27. Kb2 Ra2+ 28. Kb1 Ra1+ 29. Kb2) 23... e5 (23... Bxa4 $17 24. Qc3 Bxb3 $1 {[%mdl 512]} 25. cxb3 Nc5 26. Bxc5 dxc5) 24. Nc3 $2 (24. Bc4 $11) 24... O-O $4 {[%mdl 8192] [#]} (24... Qa1+ $19 25. Nb1 d5 $1 {[%mdl 512]}) 25. Kb2 {Played: Nc3-a2} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.12"]
[Round "6.18"]
[White "Muniz, Rafael"]
[Black "Moreno, Nelson"]
[Result "1-0"]
[ECO "C47"]
[WhiteElo "2232"]
[BlackElo "1656"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,51,2,5,-8,2,-12,62,50,59,16,13,22,77,54,134,94,94,62,153,144,324,351,502,268,615,588,585,543,526,521]} 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8. exd5 cxd5 9. O-O O-O 10. Bg5 Be7 11. Qf3 c6 12. Rae1 Rb8 13. Ne2 {[#] C47: Scotch Four Knights and Four Knights with 4 g3.} Bg4 $146 ({Predecessor:} 13... Rxb2 14. Nd4 Bd7 15. Nf5 Bxf5 16. Qxf5 g6 17. Qf3 Ne4 18. Bc1 Rxa2 19. Bxe4 dxe4 20. Qxe4 Bf6 21. Qxc6 {0-1 (33) Cherenkov,A (2177)-Pogosyan,S (2312) Moscow 2018}) 14. Qe3 Bxe2 (14... Re8 $11) 15. Rxe2 $14 {White is slightly better.} Re8 16. Qh3 {[#] Strongly threatening Bxf6.} Ne4 17. Be3 c5 ({Reject} 17... Rxb2 $6 18. f3 $16) (17... g6 $11 {remains equal.}) 18. c4 $36 {[%mdl 2048] White is more active.} Nf6 (18... g6 $1 $14) 19. Bf4 dxc4 20. Bxc4 Rb4 ({Black should try} 20... Bd6 $1 $14 21. Rxe8+ Nxe8) 21. b3 Nd5 $2 {[#]} (21... Bf8 $16 22. Rxe8 Nxe8) 22. Bd2 $18 Rb8 (22... Nc7 {keeps fighting.} 23. Bxb4 cxb4) 23. Rfe1 Qd6 $2 (23... Rf8 24. Qf5 Nb6 25. Rxe7 Nxc4) 24. Qh5 {White is clearly winning.} Rbd8 {Now ...Rf8 and Black clings on.} 25. Qxd5 Qxd5 26. Bxd5 {Accuracy: White = 59%, Black = 23%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.12"]
[Round "6.19"]
[White "Shtemler, Lavi"]
[Black "Siddeley, Hugh"]
[Result "1-0"]
[ECO "B32"]
[WhiteElo "2199"]
[BlackElo "1974"]
[Annotator "TA"]
[PlyCount "137"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,137,22,33,30,29,34,37,34,39,22,65,57,44,3,42,30,26,15,33,29,41,35,44,41,35,-41,24,-79,-70,-71,-56,-83,-55,-116,60,51,126,120,137,82,94,56,107,-20,-20,-210,-206,-287,-283,-316,0,0,13,12,493,149,159,134,6620,5411,29978,29979,29979,1240,29979,29981,29989,29990,29995,29986,29986,29987,29979,5710,29987,29988,29988,29980,29990,29988,29987,29978,29988,29989,29989,29989,29990,29990,29990,750,750,750,750,750,750,542,626,8,8,8,532,522,522,0,395,0,2313,992,5193,2589,2181,3708,2714,2512,12809,7056,6620,6091]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. N1c3 a6 7. Na3 b5 8. Nd5 Nce7 9. c4 Nxd5 10. exd5 bxc4 11. Nxc4 Nf6 12. Be3 {B32: Sicilian: Löwenthal and Kalashnikov Variations.} Rb8 13. Be2 Be7 14. a4 {[%cal Ba2a4,Ba4a5][%mdl 32] White is slightly better.} O-O 15. O-O Nd7 16. a5 f5 17. Nb6 {[#]} Nxb6 $146 (17... f4 $5 {[%cal Rf4e3]} 18. Nxc8 Qxc8 $11) ({Predecessor:} 17... f4 18. Nxd7 Qxd7 19. Bb6 Bd8 20. Bxd8 Qxd8 21. Qd2 f3 22. Bxf3 Rxf3 23. gxf3 {1-0 (48) Gutierrez Castillo,O (2194)-Rahman,M (2245) Mallorca 2004}) 18. Bxb6 (18. axb6 f4 $17) 18... Qe8 19. Qb3 Bg5 20. Qa3 Qe7 21. b4 e4 22. f4 exf3 $1 23. Bxf3 ({Better is} 23. Qxf3 $14 Qe5 24. Rad1) 23... Re8 (23... Bf4 $15) 24. Kh1 (24. b5 $11) 24... Bd7 $1 $17 25. Bf2 Bd2 26. Rab1 Qf6 27. Bb6 (27. Qa2 $15 Qh6 28. h3) 27... Rbc8 $2 (27... Bb5 $17 28. Rfd1 Qh6) 28. Qd3 $1 $14 {[%csl LRa6,LRd2]} Qh6 (28... Qc3 $1 $14 29. Qxa6 Ra8) 29. Qxa6 $16 g5 30. Bg1 (30. Qb7 $142 $1 {[%cal Rb7d7]} Bf4 31. Bg1) 30... g4 31. Bd1 g3 ({Black should try} 31... f4 $14) 32. Rb2 (32. Qb7 $1 $16 {[%cal Rb7d7]} Rcd8 33. Rb2) 32... Be3 $11 33. h3 $2 (33. Rb3 $1 $11 {and White is okay.} f4 34. Rxe3 (34. h3 {leads to mate.} Bxh3 35. Bh5 Qxh5 36. gxh3 Qxd5+ {[%mdl 64] Double Attack} 37. Rf3 Qxf3#) 34... Rxe3 35. Qb7) 33... f4 $19 34. Bxe3 Rxe3 35. Kg1 Qf6 $2 ({Black should play} 35... Rce8 $1 $19 {Hoping for ...Re1.} 36. Qc4 f3 $1 {[%mdl 512]} 37. Bxf3 Re1) 36. Re2 $1 $36 {[%cal Re2e3][%mdl 2048] White has some pressure.} Qd4 {( -> ...Rf3+)} 37. Qb6 Rc5 $2 {[%mdl 8192]} (37... Re4+ $11 38. Qxd4 Rxd4) 38. Rxe3 $2 ({Not} 38. bxc5 Rxe2+ 39. Kh1 Re8 $18) (38. Kh1 $18 {is the precise move to win.} Rc4 39. Qd8+ Be8 40. a6) 38... Qxe3+ $16 39. Kh1 Bb5 $2 {[%mdl 8192]} (39... Rc8 $16) 40. Qd8+ $18 Kg7 41. Qg5+ $1 {[%mdl 64] Double Attack} Kh8 42. Qf6+ {[%mdl 64] Double Attack} Kg8 43. Bg4 h5 44. Be6+ Kh7 45. Bf5+ {[%mdl 64] Discovered Attack} Kg8 46. Qg6+ Kf8 47. Qxd6+ (47. Qh6+ $142 Ke8 48. Qxd6 Qe7 49. Bg6+ {[%mdl 64] Double Attack} Kf8 50. Rxf4+ Kg8 51. Bh7+ $1 {[%mdl 512]} (51. Qxe7 $2 {gets mated.} Rc1+ 52. Qe1 Rxe1+ 53. Rf1 Rxf1#) 51... Kh8 52. Rf8+ {[%mdl 64] Discovered Attack} (52. Qxe7 $2 Rc1+ 53. Qe1 Rxe1+ 54. Rf1 Rxf1#) 52... Qxf8 53. Qxf8+ Kxh7 54. Qxc5) 47... Kg7 48. Qg6+ Kf8 49. Qf6+ Kg8 50. Qg5+ Kf8 51. Qh6+ Ke7 52. d6+ Kf7 53. Qg6+ Kf8 54. Qf6+ Kg8 55. Qd8+ (55. bxc5 $142 Bc6 56. Be6+ Kh7 57. Qf7+ Kh6 58. Qf8+ Kg6 59. Bf5+ Kg5 60. h4+ $1 {[%mdl 576] Deflection, Decoy} Kxh4 61. Qf6#) 55... Kf7 56. bxc5 {White threatens Qg5! and mate.} Bxf1 57. Qe7+ $1 Qxe7 58. dxe7 Kxe7 {[%mdl 4096] Endgame KB-KB} 59. Kg1 $2 (59. h4 $1 $18 {Strongly threatening Bg6.} Bc4 60. Bg6) 59... Ba6 $11 60. h4 {And now Bg6 would win.} Kd8 $2 {[%mdl 8192]} (60... Be2 $1 $11 61. Bg6 Kd7) 61. Bg6 Be2 {[#]} 62. Bf7 $2 (62. a6 $1 $18 {[%cal Ra6a7][%mdl 512] Threatening mate with a7.} Kc7 (62... Bxa6 63. Bxh5) 63. Bf7) 62... Kc7 $2 {[%mdl 8192] [#]} (62... Ke7 $1 $11 {and Black stays safe.} 63. Bg6 Kd7) 63. Bd5 $2 ({White has to play} 63. a6 $1 $18 {[%mdl 512] Black must now prevent Be8.} Bxa6 64. Bxh5) 63... Bb5 $2 {[%mdl 8192]} (63... Kb8 $11) 64. Bf3 $18 {White is clearly winning.} Be8 65. Kf1 (65. a6 $142 Kb8 66. c6) 65... Kb8 66. Ke2 Bb5+ 67. Kd2 Bf1 68. Kc3 Kc7 69. Kd4 {Accuracy: White = 59%, Black = 56%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.12"]
[Round "6.20"]
[White "Pichuaga, Juan Pablo"]
[Black "El Ters, Antouan"]
[Result "1/2-1/2"]
[ECO "B26"]
[WhiteElo "2030"]
[BlackElo "2189"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,77,4,12,10,10,-4,11,14,14,2,37,27,32,13,20,18,24,16,23,9,38,38,36,0,6,0,72,87,98,43,104,106,158,155,154,135,192,68,87,67,85,88,66,-157,-134,-164,-159,-364,-157,-220,-203,-195,-203,-203,-196,-188,-113,-275,0,0,0,0,0,0]} 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3 Nf6 7. h3 Bd7 8. Qd2 Nd4 9. Nge2 {B26: Closed Sicilian: 3 g3, lines with early Be3.} (9. f4 {looks sharper.} Bc6 10. Nce2 e5 11. O-O-O O-O 12. g4) 9... Qb6 10. Nd1 {[#]} Nxe2 $146 ({Predecessor:} 10... O-O 11. Nc1 Bc6 12. c3 Nf5 13. Bf4 e5 14. Bg5 Ne7 15. O-O Rae8 16. Ne3 Kh8 {½-½ (100) Romero Echeverria,A (2109)-Otgonjargal,S (2146) Istanbul 2012}) 11. Qxe2 Bc6 12. O-O h5 13. c3 Qa6 14. Qc2 Rc8 15. f4 e6 16. Nf2 Nd7 17. Rad1 d5 18. exd5 Bxd5 19. Bxd5 exd5 20. d4 c4 (20... O-O $11 {remains equal.}) 21. f5 $16 O-O 22. g4 ({Better is} 22. h4 $16) 22... hxg4 (22... Rce8 $14 23. Bf4 hxg4) 23. Nxg4 Rce8 (23... Nf6 $142) 24. Qg2 Re4 25. Rf3 Rfe8 (25... Nf6 $16) 26. fxg6 (26. Rdf1 $18) 26... fxg6 $14 27. Rdf1 Qe6 28. Qg3 b5 29. Bh6 $2 (29. Kg2 $14 {keeps the upper hand.}) 29... Rxg4 $1 $17 {[%mdl 64] [#] Remove Defender} 30. hxg4 {Hoping for Re3.} Bxh6 31. Qh4 $2 (31. g5 $17 Bg7 32. a3) 31... Bg7 (31... Be3+ $19 32. Kg2 g5) 32. Qg5 (32. Rf7 $17) 32... Rf8 33. Re3 Rxf1+ 34. Kxf1 Qf7+ 35. Kg2 {Strongly threatening Re7.} Nf6 ({Black should play} 35... Bf6 $19 36. Qf4 Bh4 37. Qxf7+ Kxf7) 36. Re5 $2 (36. Rf3 $17) 36... Ne4 $2 (36... Bf8 $19 {Threatens to win with ...Ne4.} 37. Rf5 Kg7) 37. Qd8+ $11 {[%mdl 64] [#] Double Attack. The position is equal.} Kh7 {( -> ...Qf2+)} 38. Qh4+ Kg8 $1 39. Qd8+ $1 {[%mdl 64] Double Attack. Accuracy: White = 58%, Black = 61%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.12"]
[Round "6.21"]
[White "Montanu, Dan-Vladimir"]
[Black "Carvalho, Guillermo"]
[Result "0-1"]
[ECO "D34"]
[WhiteElo "1983"]
[BlackElo "2187"]
[Annotator "TA"]
[PlyCount "48"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,140,26,36,45,47,34,-42,-6,-3,0,0,0,0,4,0,0,0,0,-20,-11,-18,-15,-11,-16,-22,-11,-15,-16,-48,-46,-54,-54,-66,-54,-115,-106,-177,-171,-244,-163,-158,-160,-258,-175,-279,-196,-314,-309,-292,-228,-264,-191,-263,-258,-264,0,-238,-235,-239,-188,-184,-173,-222,-218,-247,-206,-208,-208,-232,-225,-258,-225,-249,-221,-205,-181,-414,-282,-282,-262,-438,-413,-2614,-1971,-2518,-2409,-2823,-2607,-1882,-1795,-12827,-12389,-12835,-12835,-12835,-12322,-3424,0,-6536,-4548,-12842,-12842,-12842,-12839,-12842,-12843,-12843,-12844,-12845,-12845,-12848,-12843,-12845,-12845,-12845,-12846,-12845,-12846,-12846,-12847,-12847,-12847]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. g3 O-O 6. Bg2 c5 7. cxd5 exd5 8. O-O Nc6 9. Bg5 c4 10. Ne5 Be6 11. b3 cxb3 {D34: Tarrasch Defence: 6 g3 Nf6 7 Bg2 Be7.} 12. Nxc6 bxc6 {[#]} 13. Bxf6 $146 (13. axb3 $14 Re8 14. Na4) ({Predecessor:} 13. axb3 h6 14. Bxf6 Bxf6 15. Na4 Bf5 16. Qd2 Qd6 17. Nc5 Rfb8 18. Ra3 Bd8 19. b4 Bb6 20. Rc1 Re8 21. e3 {1-0 (55) Nielsen,P (2646)-Rogers,I (2564) Turin 2006}) 13... Bxf6 {Black is slightly better.} 14. axb3 c5 15. e3 cxd4 16. exd4 Qd6 17. Ra4 Rac8 18. Qd3 Rb8 19. Rb1 Qd7 {[#] White must now prevent ...Bf5.} 20. Qd2 Rfc8 {...Rxc3! is the strong threat.} 21. Ra5 {[%cal Rc3d5]} Bd8 $36 {[%mdl 2048] Black is more active.} 22. Rc5 {[%cal Rc3d5]} Be7 23. Rxc8+ Rxc8 24. Na4 Qc6 {Played: Qd7-b5} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.12"]
[Round "6.22"]
[White "Durante, Aurelio"]
[Black "Benoit, Rodrigo"]
[Result "0-1"]
[ECO "B24"]
[WhiteElo "1955"]
[BlackElo "2170"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,90,21,22,0,11,-25,0,0,3,0,35,-7,26,-16,45,-17,8,12,25,34,21,27,109,103,100,-14,55,-4,-7,-14,28,-25,0,-26,0,-136,-70,-177,-181,-165,-151,-156,-168,-126,-110,-116,-112,-290,-317,-564,-605,-589,-595,-560,-535,-1346,-377,-345,-327,-334,-337,-337,-335,-312,-306,-380,-381,-408,-388,-604,-604,-593,-593,-574,-553,-572,-620,-734,-719,-698,-658,-671,-637]} 1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. Bc4 d6 5. d3 Nf6 6. h3 {B23: Closed Sicilian: Lines without g3.} e6 7. a4 Be7 8. Nf3 {The position is equal.} O-O 9. O-O {[#]} b6 $146 ({Predecessor:} 9... d5 10. Ba2 Bd7 11. e5 Ne8 12. Nxd4 cxd4 13. Nb5 Qb6 14. c4 a6 15. a5 Qxa5 16. Nxd4 dxc4 {0-1 (39) Pomar Mir,F-Fiol Company,J Palma de Mallorca 1999}) 10. Ba2 Bb7 11. Re1 a6 (11... Nxf3+ $11 12. Qxf3 Nd7) 12. Bg5 (12. Nxd4 $1 $14 cxd4 13. Ne2) 12... Bc6 (12... h6 {is interesting.} 13. Bf4 Nc6 14. Ne2 b5 15. c3 b4) 13. Nxd4 cxd4 14. Ne2 e5 15. Ng3 g6 (15... Nd7 $11 16. Bxe7 Qxe7) 16. Bh6 $16 Re8 17. h4 (17. f4 $16) 17... Bf8 (17... Bd7 $11) 18. Bxf8 (18. Bg5 $14) 18... Rxf8 $11 19. h5 Qe7 20. Bb3 ({White should play} 20. c3) 20... Kh8 21. Rf1 Bd7 22. Qd2 (22. hxg6 $1 $11 fxg6 23. Qd2) 22... Ng4 (22... gxh5 $17 23. Qg5 Rg8) 23. f3 ({Better is} 23. hxg6 $15 Qh4 24. g7+ Kxg7 25. Rfe1) 23... Ne3 $19 24. Rf2 {[#]} f5 $1 25. c3 f4 26. Nf1 a5 27. cxd4 exd4 28. hxg6 $2 {[#]} (28. Bd5 $17 {is a better defense.} Rac8 29. b4) 28... hxg6 29. g4 $2 (29. Re2 Kg7 30. Rc1) 29... fxg3 $1 30. Nxg3 Qg5 31. Rh2+ Kg7 32. Rg2 {If only White now had time for Nf5+....} Rxf3 $2 (32... Bh3 33. Nf5+ Rxf5 34. Rxg5 Rxg5+ 35. Kf2 Rg2+ {[%mdl 64] Skewer} 36. Ke1 Rg1+ 37. Kf2 Rxa1) 33. Nf5+ Rxf5 $1 34. exf5 Qxg2+ ({Much less strong is} 34... Qxf5 35. Rf2) 35. Qxg2 Nxg2 36. Kxg2 Bxf5 {[%mdl 4096] Endgame KRB-KRB} ({Resist} 36... gxf5 37. Rc1 $19) 37. Bc4 Re8 38. b4 Re2+ 39. Kf3 (39. Kf1 $142 Re3 40. bxa5 bxa5 41. Rb1) 39... Re3+ {Black is clearly winning.} 40. Kf2 Bxd3 41. Bxd3 Rxd3 42. bxa5 bxa5 43. Rc1 Rc3 44. Rd1 Rc4 45. Kf3 Rxa4 {Accuracy: White = 36%, Black = 53%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.12"]
[Round "6.23"]
[White "Moccero, Eduardo"]
[Black "Vazquez, Facundo"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1926"]
[BlackElo "2155"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,64,23,-14,-7,-11,52,54,57,-83,-80,-72,-83,-96,-72,-88,-72,-68,-58,-61,-45,-96,-48,-108,-86,-96,-83,-129,-134,-141,-53,-75,-58,-262,-252,-262,-253,-325,-294,-335,-320,-973,-974,-942,-938,-1056,-564,-1021,-1110,-717,-477]} 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e3 d6 6. Be2 Nbd7 7. O-O e5 8. b4 Re8 9. Qc2 a5 {E61: King's Indian: Early deviations for White, including Smyslov System.} 10. b5 e4 (10... exd4 $11 11. exd4 Nb6) 11. Nd2 $14 {[%cal Rd2e4]} Qe7 {[#] White is slightly better.} 12. Nd5 $146 (12. a4 $14 {stays ahead.}) ({Predecessor:} 12. Ba3 Nf8 13. Nd5 Nxd5 14. cxd5 b6 15. Rfc1 Ra7 16. Qb3 a4 17. Qc2 Bf5 18. Rab1 {1-0 (59) Townsend,M (2231)-Hebden,M (2491) Reading 2017}) 12... Nxd5 $17 13. cxd5 Nb6 14. Bc4 a4 15. Re1 Bf5 16. Ba3 Qd7 17. Rac1 h5 18. Bb4 (18. Bf1 $15) 18... g5 19. Nf1 ({White should try} 19. a3 $15) 19... Bg6 20. a3 Re7 ({Reject} 20... Nxc4 $6 21. Qxc4 Re7 22. Rc2 $11) 21. Qd2 f5 22. Rc3 Bh6 (22... Nxc4 $17 23. Rxc4 b6) 23. Rec1 f4 24. exf4 $2 ({White should play} 24. Be2 $15) 24... gxf4 $19 25. Ba2 Rc8 (25... Qxb5 26. Rxc7 e3 27. Qe1 $17) 26. Ba5 {next Bxb6 is good for White.} Qxb5 {[%mdl 64] [#] Double Attack} 27. Bxb6 Qxb6 28. Rb1 $2 (28. Re1) 28... e3 {Black is clearly winning.} 29. Rxb6 exd2 30. Nxd2 Re1+ 31. Nf1 Bd3 {[%csl Gd3][%cal Re1f1] [#]} 32. h3 Rxf1+ {Accuracy: White = 55%, Black = 76%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.12"]
[Round "6.24"]
[White "Pustilnik, Iber"]
[Black "Contin, Daniel"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "1892"]
[BlackElo "2267"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,65,33,36,21,33,0,-4,0,8,-6,-8,-11,-10,0,29,7,0,-54,-18,-33,4,11,22,-2,0,0,8,0,10,2,89,-6,-17,-47,-35,-100,-110,-116,-110,-109,-94,-511,-353,-735,-719,-641,-472,-443,-339,-418,-243,-231,-238,-232,-231,-29993,-29994,-29994]} 1. d4 Nf6 2. c4 e6 3. g3 c5 4. Nf3 d5 5. cxd5 exd5 6. Bg2 {E01: Catalan: Early deviations.} Nc6 {[#]} 7. h3 $146 ({Predecessor:} 7. O-O Be7 8. Nc3 O-O 9. h3 Ne4 10. dxc5 Bxc5 11. Bf4 Nxc3 12. bxc3 Bf5 13. Nd2 Re8 14. g4 Bg6 15. e3 Bb6 16. Qb3 Re7 17. Rfd1 Rd7 {½-½ (52) Nakamura,H (2777)-Mamedyarov,S (2801) Saint Louis 2018}) 7... cxd4 8. Nxd4 {The position is equal.} Bc5 9. Nb3 Bb6 10. O-O O-O 11. Nc3 Be6 12. Bg5 h6 13. Bf4 (13. Bxf6 $11 Qxf6 14. Na4) 13... g5 14. Bc1 Qd6 {Strongly threatening ...Qxg3.} 15. e3 a6 16. Ne2 Qd7 17. Kh2 Bf5 18. Nbd4 Be4 19. b3 Ne5 (19... Rfe8 $11) 20. Bb2 (20. f3 $16 Bh7 21. f4 gxf4 22. exf4) 20... Rfe8 21. Rc1 Nd3 22. Ba1 (22. Rc2 $15) 22... Nxc1 $40 {[%mdl 128] White is in trouble.} 23. Qxc1 Rac8 24. Qb2 Bd8 25. f4 $2 {[%mdl 8192] [#]} (25. Nc3 $17) 25... g4 {Threatens to win with ...Bxg2.} 26. f5 $2 (26. Bxe4 Rxe4 27. h4) 26... Bxg2 $19 27. Kxg2 gxh3+ 28. Kxh3 Re4 29. Nf4 Rxe3 {Played: Re4xd4} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7"]
[White "Escofet, Jaime"]
[Black "Barandiaran, Gabriel"]
[Result "1/2-1/2"]
[ECO "C96"]
[WhiteElo "2025"]
[BlackElo "1834"]
[Annotator "TA"]
[PlyCount "40"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,31,47,100,56,68,48,51,46,73,76]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 d6 7. Re1 Be7 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Nc6 12. d5 Nb8 ({Black should try} 12... Na5 $14) 13. Nbd2 {C96: Closed Ruy Lopez: Chigorin Defence: 11 d4, replies other than 11...Qc7.} Nbd7 14. Nf1 Re8 15. a4 Bb7 16. b3 {[#]} {Predecessor:} Bf8 $146 17. Ng3 g6 18. Nh2 Bg7 19. Ng4 Nxg4 20. hxg4 Qh4 {½-½ (20) Pribeanu,M (2128)-Bursuc,M (1952) Seoul 2015} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7"]
[White "Gomez Troccoli, Martin"]
[Black "Urrestarazu, Diego"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "2004"]
[BlackElo "1837"]
[Annotator "TA"]
[PlyCount "49"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,49,39,82,56,67,0,6,3,8,10,24,24,20,0,70,70,63,15,170,0,0,0,0,0,387,384,381,367,29996,29997,29997,29998,29998,29999]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f3 Bg7 7. Be3 O-O 8. Qd2 Nc6 9. g4 Bd7 10. h4 {B76: Sicilian Dragon: Yugoslav Attack, 9 g4 and 9 0-0-0.} h5 11. Nd5 (11. g5 $14 Ne8 12. O-O-O) 11... Nxd5 ({Resist} 11... hxg4 12. Nxf6+ Bxf6 13. Nxc6 $17) 12. exd5 {[#] The position is equal.} Nxd4 $146 ({Predecessor:} 12... Ne5 13. gxh5 gxh5 14. Bh6 Ng6 15. Bd3 f5 16. Qg5 Qe8 17. Rg1 Rf6 18. Bxg7 Kxg7 19. Nxf5+ Bxf5 20. Bxf5 {1-0 (36) Arboleda Orozco,J (1904)-Acevedo Leon,J (1327) Medellin 2015}) 13. Bxd4 Bxd4 14. Qxd4 Qa5+ 15. c3 Qb6 ({Black should try} 15... e5 $11 16. dxe6 Bxe6) 16. Qd2 hxg4 17. h5 {Strongly threatening 0-0-0.} Kg7 $2 ({But not} 17... gxf3 $6 18. O-O-O $16) (17... g3 $1 $11) 18. hxg6 $2 (18. Bd3 $18) 18... Rh8 $11 19. Rh7+ $1 Rxh7 20. gxh7 Kxh7 $2 {[%mdl 8192] [#]} (20... Kh8 $11 {and Black is okay.}) 21. O-O-O $1 $18 Rg8 {[#]} 22. Bb5 $1 {[%mdl 512] Threatening mate with Rh1+.} Qxb5 $2 ({Not} 22... Bxb5 23. Rh1+ Kg6 24. Qh6+ Kf5 25. Rh5+ Rg5 26. Qxg5#) (22... Rg7 $18) 23. Rh1+ {White mates.} Kg6 24. Qh6+ Kf5 25. Rh5+ {Accuracy: White = 65%, Black = 52%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7"]
[White "Gaye, Gustavo"]
[Black "De Cuadro, Dionisio"]
[Result "1-0"]
[ECO "A00"]
[WhiteElo "2001"]
[BlackElo "1650"]
[Annotator "TA"]
[PlyCount "37"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,37,16,6,10,0,25,24,26,7,368,369,405,407,419,426,430,420,421,436,466,437,472,477,511,479,525,532,600,585]} 1. g3 Nf6 2. Bg2 e5 3. c4 d5 4. cxd5 Nxd5 5. Nc3 Nxc3 6. bxc3 Nc6 {A22: English Opening: 1...e5 2 Nc3 Nf6.} 7. d3 Be7 8. Rb1 O-O {White has an edge.} 9. Qc2 {[#]} Rb8 $146 {[%mdl 8192]} (9... Bc5 $11) ({Predecessor:} 9... h6 10. Nf3 Rb8 11. O-O Bf5 12. e4 Bg4 13. h3 Be6 14. Be3 f5 15. exf5 Bxf5 {1-0 (50) Gierth,K (2100)-Vieth,M (1657) GER email 2010}) 10. Bxc6 $1 $18 {[%mdl 64] [#] Pin} Bc5 11. Bg2 Qf6 12. Nf3 Re8 13. O-O h6 14. Nd2 {White is clearly winning.} Bb6 15. Nc4 Bc5 16. Be3 Bxe3 17. Nxe3 c6 18. Qa4 a6 19. Rb6 {Accuracy: White = 100%, Black = 37%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7"]
[White "Pinero, Ismael"]
[Black "Manteiga, Franco"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "1914"]
[BlackElo "1703"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,70,20,51,13,14,18,8,12,118,-22,-2,-20,0,-5,0,0,40,35,42,37,82,70,60,52,56,54,49,14,66,11,37,0,13,-41,-52,-49,-37,-38,-24,-81,-88,-126,-39,-61,-61,-61,-61,-60,-56,-56,-57]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e5 7. Nb3 Be6 8. Be3 Nbd7 9. Qd2 b5 10. g4 Nb6 11. g5 Nfd7 12. h4 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} Nc4 13. Bxc4 $1 bxc4 14. Nc1 {[#] The position is equal.} Nb6 $146 (14... Qb8 $11) ({Predecessor:} 14... Rb8 15. b3 Be7 16. N1e2 Qc8 17. h5 O-O 18. Rd1 cxb3 19. cxb3 Qc7 20. Kf2 Nb6 {½-½ (50) Cvak,R (2248)-Vodicka,M (2245) ICCF email 2013}) 15. Nd5 (15. N1e2 $16) 15... Nxd5 16. exd5 Bf5 17. Ne2 Be7 18. Qc3 Qc7 19. Ng3 $36 {[%mdl 2048] White is more active.} Bd7 20. Ne4 Qb7 21. O-O-O Rb8 22. h5 Qb4 23. Qxb4 Rxb4 24. Bd2 (24. h6 $5 {[%cal Rh6g7]} O-O 25. Bd2 $14) 24... Rb7 ({Black should try} 24... Rb5 $11) 25. Rhg1 (25. f4 $14) 25... Bf5 $11 26. Nc3 O-O 27. f4 (27. Rde1 $11) 27... Rfb8 $15 28. b3 $1 cxb3 29. axb3 Rc8 30. fxe5 (30. Kb2 $11 {keeps the balance.}) 30... dxe5 $17 31. Rdf1 {[#]} Bd7 (31... g6 $1 $17 32. Rg3 Bc5) 32. Ne4 {Black is slightly better.} Rxb3 $1 {Threatens to win with ...Ba3+.} 33. Nf6+ $1 Bxf6 $1 34. gxf6 g6 35. hxg6 hxg6 {Accuracy: White = 43%, Black = 57%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7"]
[White "Munoz Rozas, Diego"]
[Black "Dotta, Gian Franco"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1685"]
[BlackElo "2000"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,84,-7,17,-7,-11,-16,-14,-20,-12,2,50,-13,9,-51,-49,-42,45,22,14,-19,60,68,48,16,29,-47,-46,-48,3,-77,-72,-70,11,-89,-75,-75,-75,-81,-78,-87,-87,-92,-88,-77,-57,-72,-48,-70,-36,-40,-26,-117,-109,-142,-109,-178,-178,-178,-178,-178,-147,-204,-204,-270,-200,-200,-200,-240,-241,-380,-369,-29989,-29990,-29996,-29997]} 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 O-O 5. Nbd2 d6 6. h3 Nfd7 {[#]} 7. Bb5 $146 {A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems.} ({Predecessor:} 7. Bc4 Nc6 8. c3 e5 9. Bh2 Qe7 10. O-O Kh8 11. Ne1 f5 12. Nc2 Nf6 13. f4 exd4 14. exd4 d5 {1-0 (40) Wang,Y (2421)-Jumabayev,R (2625) Chengdu 2017}) 7... e5 8. Bg5 f6 9. Bh4 {The position is equal.} g5 10. Bg3 f5 11. c3 (11. dxe5 $14 dxe5 12. Qe2) 11... e4 12. Qb3+ (12. Bc4+ $11 Kh8 13. Ng1) 12... Kh8 $15 13. Ng1 $1 Qf6 ({Black should try} 13... Nb6 $15) 14. Bxd7 Nxd7 15. Ne2 Bh6 (15... Qh6 $11) 16. h4 $1 $14 g4 17. Nf4 {Threatening Ne6.} Nb6 18. O-O-O (18. c4 $11) 18... Bd7 $15 {Hoping for ...Ba4.} 19. Qc2 Qf7 (19... Bxf4 $1 $15 20. Bxf4 Nd5) 20. Kb1 (20. c4 $1 $11) 20... Bb5 {Strongly threatening ...Bxf4.} 21. Qb3 Qe8 (21... Qxb3 $15 22. Nxb3 Bxf4 23. Bxf4 Nd5) 22. Qe6 (22. Rc1 $1 $11) 22... Bd3+ 23. Ka1 Bxf4 24. Qxe8 Raxe8 25. Bxf4 Nd5 26. g3 Nxf4 27. gxf4 Rf6 28. Nf1 b5 29. Ng3 Rb8 30. h5 h6 31. Rxd3 (31. d5 $11 {keeps the balance.}) 31... exd3 $11 {[%mdl 4096] Endgame KRR-KRN} 32. Rd1 c5 33. Rxd3 {[#]} (33. dxc5 $17 b4 34. cxb4) 33... c4 $1 $19 {[%cal Rc4d3]} 34. Rd2 {[#]} d5 $1 35. Kb1 b4 36. Ne2 (36. cxb4 $17 Rxb4 37. Rc2) 36... a5 {[%cal Ba7a5,Ba5b4,Bb4b3][%mdl 32]} 37. Kc2 Rfb6 38. cxb4 axb4 39. Kb1 Ra6 40. Ng3 (40. b3 $142) 40... Rba8 41. Nxf5 $2 (41. b3 $19 Rf8 42. Rb2) 41... Rxa2 42. Nxh6 b3 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7"]
[White "Pelaez, Diego"]
[Black "Rodriguez Farias, Eduardo"]
[Result "0-1"]
[ECO "A57"]
[WhiteElo "1607"]
[BlackElo "1963"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,70,62,4,31,-6,31,29,40,24,33,0,0,-7,17,-37,-37,-34,-38,-36,0,-30,-20,-65,-55,-70,-56,-52,-32,-88,-91,-92,-92,-92,-99,-75,-81,-112,-113,-138,-116,-202,-200,-309,-315,-304,-306,-380,-382,-406,-392,-879,-864,-831,-825]} 1. d4 Nf6 2. c4 c5 3. d5 b5 4. Qc2 bxc4 5. e4 d6 6. Bxc4 g6 7. Nf3 Bg7 8. O-O O-O 9. Nc3 Ba6 10. Nd2 (10. Nb5 $14) 10... Qa5 {[#] A57: Benko/Volga Gambit.} 11. Re1 $146 ({Predecessor:} 11. b3 Nxd5 12. Nxd5 Bxa1 13. Nxe7+ Kg7 14. Bb2+ Bxb2 15. Qxb2+ f6 16. Rd1 Bb7 17. Nf3 Nc6 18. Nxc6 Bxc6 19. Rxd6 {0-1 (35) Hart,A (1952)-Balla,T (2348) Kovacica 2019}) 11... Bxc4 12. Nxc4 Qb4 {White has an edge.} 13. Qe2 Nfd7 14. Bd2 Nb6 15. Nxb6 Qxb6 16. Na4 (16. Rac1 $11) 16... Qa6 $15 17. Qxa6 Nxa6 18. Bc3 Rfb8 19. Bxg7 Kxg7 20. Rab1 Rb4 21. Nc3 Rab8 22. b3 Nc7 23. e5 (23. Rbc1 $15) 23... Nb5 $17 24. Nxb5 R8xb5 25. exd6 exd6 {[%mdl 4096] Endgame KRR-KRR} 26. Re7 a5 27. Rd1 a4 28. bxa4 Rxa4 29. Re2 {[#]} (29. g3 $17 {is a better defense.}) 29... Rd4 $1 $19 {[%cal Rd4d1]} 30. Ree1 {[#]} (30. Rc1 $142) 30... Rxd1 $1 31. Rxd1 Kf6 32. g4 Ke5 33. Kg2 c4 34. f4+ $2 (34. a4 Ra5 35. g5) 34... Ke4 35. Kg3 c3 {Accuracy: White = 30%, Black = 86%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7"]
[White "Aguilera, Angel"]
[Black "Avedisian, Alexander"]
[Result "0-1"]
[ECO "A04"]
[WhiteElo "1196"]
[BlackElo "1892"]
[Annotator "NA RC"]
[PlyCount "94"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. Nf3 {[%emt 0:00:03]} g6 {[%emt 0:00:00]} 2. g3 Bg7 3. Bg2 Nf6 4. d4 {[%emt 0:02:30]} O-O {[%emt 0:00:51]} 5. O-O {[%emt 0:01:46]} d6 {[%emt 0:00:07]} 6. c4 {[%emt 0:00:51]} c5 {[%emt 0:00:07]} 7. dxc5 {[%emt 0:02:15]} dxc5 {[%emt 0:00:15]} 8. Be3 {[%emt 0:00:57]} Nc6 {[%emt 0:01:20]} 9. Qxd8 {[%emt 0:02:59]} Rxd8 {[%emt 0:00:06]} 10. Nc3 {[%emt 0:01:04]} Be6 {[%emt 0:01:23]} 11. Bxc5 {[%emt 0:04:49]} Bxc4 {[%emt 0:00:13]} 12. b3 {[%emt 0:03:48]} Nd7 {[%emt 0:05:43]} 13. Rac1 {[%emt 0:12:44]} Nxc5 {[%emt 0:03:58]} 14. bxc4 {[%emt 0:01:07]} Rd7 {[%emt 0:02:58]} 15. Ne1 {[%emt 0:02:11]} Na5 {[%emt 0:06:45]} 16. Ne4 {[%emt 0:00:52]} Rc8 {[%emt 0:01:41]} 17. Bh3 {[%emt 0:01:47]} e6 {[%emt 0:00:31]} 18. Nxc5 {[%emt 0:10:32]} Rxc5 {[%emt 0:00:08]} 19. Nd3 {[%emt 0:00:14]} Rxc4 {[%emt 0:01:11]} 20. Rxc4 {[%emt 0:01:14]} Nxc4 {[%emt 0:00:09]} 21. Nc5 {[%emt 0:00:20]} Rc7 {[%emt 0:03:58]} 22. Nxe6 {[%emt 0:03:59]} fxe6 {[%emt 0:00:58]} 23. Bxe6+ {[%emt 0:00:16]} Kf8 {[%emt 0:00:16]} 24. Rc1 {[%emt 0:00:38]} b5 {[%emt 0:00:33]} 25. a4 {[%emt 0:00:06]} a6 {[%emt 0:00:16]} 26. axb5 {[%emt 0:02:02]} axb5 {[%emt 0:00:09]} 27. Rb1 {[%emt 0:07:05]} Nb2 {[%emt 0:10:46]} 28. e4 {[%emt 0:01:01]} b4 {[%emt 0:01:00]} 29. f4 {[%emt 0:00:18]} Bd4+ {[%emt 0:00:57]} 30. Kg2 {[%emt 0:01:09]} Rc2+ {[%emt 0:01:23]} 31. Kh3 {[%emt 0:00:39]} Rd2 {[%emt 0:02:06]} 32. e5 {[%emt 0:03:15]} Rd1 {[%emt 0:00:36]} 33. Rxd1 {[%emt 0:01:35]} Nxd1 {[%emt 0:00:07]} 34. Kg2 {[%emt 0:00:39]} Nb2 {[%emt 0:06:02]} 35. h3 {[%emt 0:00:30]} Na4 {[%emt 0:00:15]} 36. Bb3 {[%emt 0:00:11]} Nc5 {[%emt 0:00:11]} 37. Ba2 {[%emt 0:01:10]} b3 {[%emt 0:00:18]} 38. Bb1 {[%emt 0:00:02]} b2 {[%emt 0:00:26]} 39. Kf1 {[%emt 0:01:03]} Na4 {[%emt 0:00:16]} 40. e6 {[%emt 0:00:45]} Nc3 {[%emt 0:00:24]} 41. Bd3 {[%emt 0:02:56]} b1=Q+ {[%emt 0:00:12]} 42. Bxb1 {[%emt 0:00:31]} Nxb1 {[%emt 0:00:06]} 43. g4 {[%emt 0:00:20]} Nc3 {[%emt 0:00:42]} 44. Kg2 {[%emt 0:00:10]} Ke7 {[%emt 0:03:13]} 45. f5 {[%emt 0:01:32]} gxf5 {[%emt 0:11:22]} 46. gxf5 {[%emt 0:00:53]} Be5 {[%emt 0:00:15]} 47. Kf3 {[%emt 0:00:34]} h5 {[%emt 0:00:12]} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7"]
[White "Rodriguez Buela, Martin"]
[Black "Aguilar Samper, Valentin"]
[Result "0-1"]
[ECO "E12"]
[BlackElo "1946"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,82,45,52,55,36,50,27,31,15,19,6,-14,-30,-27,-104,-107,-146,-137,-142,-135,-133,-120,-114,-101,-245,-238,-259,-251,-227,-239,-238,-213,-199,-194,-202,-195,-245,-243,-241,-242,-806,-175,-562,-576,-491,-197,-230,-235,-237,-239,-6207,-6161,-6087,-5406,-5469,-5393,-5273,-5197,-6215,-6215,-6207,-6207,-6203,-6123]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Bg5 Bb7 5. Nc3 Bb4 6. e3 O-O 7. Bd3 c5 8. O-O cxd4 9. exd4 Bxc3 10. bxc3 d6 11. Re1 Nbd7 {E43: Nimzo-Indian: Rubinstein: 4...b6.} 12. Nd2 Rc8 {[#]} 13. Qa4 $146 ({Predecessor:} 13. a4 Re8 14. a5 Qc7 15. axb6 axb6 16. Rb1 h6 17. Bh4 Qc6 18. Bf1 Ra8 19. f3 {½-½ (73) Goldenberg,R (2325)-Meinsohn,F (2255) Belfort 1983}) 13... Qc7 {White has an edge.} 14. Rac1 h6 15. Bf4 e5 16. Bg3 Nh5 17. Be4 (17. Nf1 $11 {keeps the balance.}) 17... Bxe4 $17 18. Rxe4 {[#]} f5 $1 $36 {[%cal Rf5e4][%mdl 2048] Black is in control.} 19. Rh4 Ndf6 20. f3 Nxg3 21. hxg3 Qf7 22. Kf2 (22. Qc2 $17 {keeps fighting.}) 22... e4 $19 23. Re1 exf3 24. gxf3 {[#]} Rce8 $1 {...Ng4+! is the strong threat.} 25. Qd1 Rxe1 {Played: Nf6-g4} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.1"]
[White "Acosta, Pablo Ismael"]
[Black "Hernandez Guerrero, Gilberto"]
[Result "1/2-1/2"]
[ECO "A34"]
[WhiteElo "2416"]
[BlackElo "2557"]
[Annotator "TA"]
[PlyCount "36"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,36,18,19,14,17,15,28,-23,-12,-8,-14,-22,-7,-7,-8,-30,-28,-22,-24,-27,-22,-8,-14]} 1. c4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nf6 5. e3 O-O 6. Nge2 Nc6 7. O-O d6 8. d3 Bd7 9. a3 {A36: Symmetrical English vs ...g6: 4 Bg2 Bg7.} Qc8 10. Rb1 Bh3 11. Nf4 (11. e4 $142) 11... Bxg2 $11 12. Kxg2 {[#]} e6 $146 ({Predecessor:} 12... Qg4 13. f3 Qd7 14. h4 e6 15. g4 Qe7 16. Bd2 Nd7 17. Qe1 a6 18. b4 cxb4 19. axb4 {0-1 (24) Dumont,G (1755)-Beck,G (2223) ICCF email 2010}) 13. b4 b6 14. b5 Ne7 15. Bb2 e5 16. Nfd5 Nfxd5 17. cxd5 Qd7 18. e4 f5 {Accuracy: White = 88%, Black = 100%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.2"]
[White "Liascovich, Lucas"]
[Black "Lima, Darcy"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2425"]
[BlackElo "2526"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,74,4,35,39,45,28,39,27,30,29,33,33,49,30,43,35,20,0,0,0,29,25,58,16,17,14,33,31,64,71,66,69,62,51,60,71,97,70,81,87,88,75,304,304,404,375,370,358,577,412,397,408,412,397,474,458,444,399,393,41,41,48,44,0,114,0,0]} 1. d4 d5 2. Nf3 Nf6 3. Bf4 g6 4. e3 Bg7 5. Be2 Bg4 6. h3 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Bxf3 7. Bxf3 c6 8. O-O {White is slightly better.} Nbd7 9. Nd2 O-O 10. c4 e6 11. b4 {[#]} a6 $146 ({Predecessor:} 11... Re8 12. b5 e5 13. dxe5 Nxe5 14. Bxe5 Rxe5 15. bxc6 bxc6 16. cxd5 Nxd5 17. Rc1 Rc8 {½-½ (32) Tkachenko,G (2330)-Nyudleev,D (2230) Elista 2006}) 12. a4 Qe7 13. c5 {Black must now prevent Bd6.} e5 14. Bh2 Ne8 15. Nb3 {[%cal Bd2b3,Bb3a5,Ba5c4,Bc4d6][%mdl 32]} Nc7 16. e4 dxe4 17. Bxe4 exd4 18. Re1 $1 Ne5 19. Na5 $1 {aiming for f4.} ({Don't play} 19. Qxd4 Rfe8 $15) (19. Nxd4 Rfe8 $11) 19... Ne6 20. Bxe5 Bxe5 21. Bxc6 $1 bxc6 22. Rxe5 (22. Nxc6 Bh2+ $1 {[%mdl 512]} 23. Kxh2 Qc7+ 24. Ne5 f6 $17) 22... Qc7 23. Qe1 Rab8 24. Nc4 Nf4 25. Rd1 {[%cal Ba1d1,Bd1d3,Bd3f3,Bf3f6][%mdl 32]} Rfd8 $2 {[#]} (25... Nd5 $16) 26. Nd6 $1 $18 {And now Re7 would win.} d3 27. g3 Ne6 {If Black can now play ...Rxd6 this consolidates a bit.} 28. Rxd3 a5 $2 (28... Rf8 29. Rf3 Rbd8 30. Rxf7 Rxf7) 29. Rf3 Rxd6 30. cxd6 Qxd6 31. Rxa5 Rxb4 32. Ra7 Qb8 {Threatens to win with ...Rb1!} 33. Qe3 Ng5 34. Rf6 $2 (34. Qxg5 $18 Qxa7 35. Qd8+ Kg7 36. Qf6+ Kh6 37. g4 (37. Qxc6 Rxa4 38. Qd6 Qa8 $16)) 34... Re4 $1 $14 {[%cal Re4e3]} 35. Qxg5 Qxa7 36. Rxc6 Qxa4 (36... Re1+ $11 {keeps the balance.} 37. Kg2 Qd4) 37. Qc1 ({White must play} 37. Qd8+ $16 Kg7 38. Rc8) 37... Kg7 {Accuracy: White = 79%, Black = 59%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.3"]
[White "Vazquez, Guillermo"]
[Black "Hungaski, Robert"]
[Result "1/2-1/2"]
[ECO "C00"]
[WhiteElo "2524"]
[BlackElo "2504"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,63,-13,-9,0,0,0,0,0,0,0,0,16,31,63,72,45,-23,-35,-31,0,0,0,0,0,0,0,0,0,0,0,0,39,44,27,27,71,10,10,3,3,8,12,0,0,0,0,0,0,0,0,-3,0,-3,-3,-3]} 1. e4 e6 2. d4 d5 3. Bd3 dxe4 4. Bxe4 Nf6 5. Bf3 c5 6. Ne2 Nc6 {[%cal Rc5d4] C01: French: Exchange Variation.} 7. Be3 cxd4 8. Nxd4 Ne5 9. Nc3 Be7 10. Ndb5 Nxf3+ (10... Bd7 {is more complex.} 11. Nd6+ Kf8 12. Bxb7 Rb8 13. Bc5 Qc7) 11. Qxf3 {[#]} Bd7 $146 ({Predecessor:} 11... O-O 12. O-O a6 13. Rfd1 Bd7 14. Nd4 Qc7 15. Qg3 Qxg3 16. hxg3 e5 17. Nf3 Bg4 {½-½ (52) Alekseev,E (2620)-Dilmukhametov,A (2353) Sochi 2018}) 12. Qxb7 O-O 13. Rd1 (13. O-O-O $14) 13... a6 14. Nd4 Qc8 (14... Rb8 {looks sharper.} 15. Qxa6 Qc7 16. Nb3 Bb4 17. Bd2 Rb5) 15. Qxc8 Rfxc8 16. O-O Ba3 17. Bc1 Rab8 18. Nb3 Bb4 19. Bd2 a5 20. a3 a4 {[#] aiming for ...Bxc3.} 21. axb4 {Black must now prevent Nc5.} axb3 22. cxb3 Bc6 23. Rc1 (23. Na4 $16) 23... Rxb4 $11 {The position is equal.} 24. Ne2 Rxb3 25. Nd4 Rb6 26. Ba5 Ra6 27. b4 {[#] Strongly threatening b5.} Bd7 28. Rxc8+ Bxc8 29. Rc1 Bd7 30. h3 Nd5 31. Nb3 {Threatens to win with Nc5.} Ra8 32. Nc5 {Accuracy: White = 86%, Black = 78%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.4"]
[White "Delgado Ramirez, Neuris"]
[Black "Lopez Azambuja, Nicolas"]
[Result "1-0"]
[ECO "C65"]
[WhiteElo "2634"]
[BlackElo "2310"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,91,25,28,5,18,-6,24,-11,-9,-18,-18,-24,-6,-20,-12,-34,-28,-38,-13,-19,-8,-20,-18,-37,-12,-37,-39,-73,-48,-51,0,-9,18,0,0,0,10,15,87,80,71,71,133,74,118,35,75,0,14,-20,143,0,85,0,0,0,0,0,0,-8,-14,-57,-38,-62,-58,-97,-110,-126,-133,-173,-179,-265,-260,-591,-574,-516,-406,-366,-92,-92,0,0,29986,29987]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Bxc6 dxc6 6. Be3 {C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5.} (6. O-O {is interesting.} Bd6 7. h3 Be6 8. a4 h6 9. b3) 6... Bd6 {6...Bxe3 is not played anymore.} 7. Nbd2 {[#]} O-O $146 ({Predecessor:} 7... Ng4 8. Bg5 f6 9. Bh4 c5 10. Nc4 b5 11. Nxd6+ cxd6 12. a4 b4 13. Nd2 O-O 14. Qe2 Be6 15. f3 Nh6 16. O-O Qd7 {½-½ (16) Delgado Ramirez,N (2610)-Mekhitarian,K (2539) Concordia 2019}) 8. Qe2 {White has an edge.} a5 9. Bg5 h6 10. Bh4 Re8 11. h3 Qe7 12. g4 Qe6 13. Bg3 Nd7 14. Nc4 a4 15. a3 c5 16. Nh4 b5 17. Ne3 Bf8 18. Nhg2 Bb7 19. f3 g6 20. h4 Nb8 21. g5 h5 22. f4 Bg7 23. f5 Qd6 (23... Qd7 $11 {remains equal.}) 24. O-O Nc6 25. c3 Na5 (25... Qd7 $142) 26. Rad1 (26. fxg6 $142 fxg6 27. Rad1) 26... Rad8 27. Kh2 (27. fxg6 $16 fxg6 28. Nf5) 27... Qb6 28. Bf2 (28. fxg6 $16 fxg6 29. Nf5) 28... Qa6 29. Bg3 Qa8 $2 ({Better is} 29... c4 $11) 30. Rf2 (30. fxg6 $16 fxg6 31. Nf5 $1 {[%mdl 512]}) 30... Rd7 (30... c4 $1 $11) 31. Ne1 (31. fxg6 $16 fxg6 32. Nf5) 31... c4 32. dxc4 Rxd1 33. Qxd1 {Strongly threatening fxg6.} Nxc4 34. Nxc4 bxc4 35. Qe2 Qa6 36. Nf3 Qb5 $1 37. Nd2 gxf5 {Threatens to win with ...f4.} 38. exf5 {[#]} Qd5 $1 {[%csl Gb7][%cal Rd5h1]} ({Avoid the trap} 38... Qxb2 $2 39. f6 $18) 39. Nf3 e4 40. f6 (40. Qe3 $142) 40... Bf8 $19 41. Nd4 $2 (41. g6 e3 42. Rf1 fxg6 43. Ng5) 41... e3 {[%csl Gb7][%cal Rd5h1]} 42. Rf1 {White hopes to continue with g6.} Bd6 43. Nf5 {[#]} Bxg3+ $2 (43... Qd3 $1 $19 {[%cal Rd3e2] has better winning chances.} 44. Qxd3 cxd3) 44. Kxg3 $17 Qe5+ (44... Qd3 $17 45. Ne7+ Kf8) 45. Rf4 $11 {Black must now prevent Nh6+.} Rd8 $2 {[%mdl 8192]} (45... Bd5 $11) 46. Qxh5 {Accuracy: White = 58%, Black = 54%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.5"]
[White "Tristan, Leonardo"]
[Black "Larrea, Manuel"]
[Result "1-0"]
[ECO "B24"]
[WhiteElo "2533"]
[BlackElo "2243"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,101,21,20,30,24,21,19,-29,-21,-59,-59,-50,-48,-45,-53,-47,0,0,108,107,99,98,121,112,206,204,114,21,26,24,51,16,17,13,12,14,16,0,45,45,45,26,43,0,0,0,0,0,0,0,0,0,0,0,0,-9,-10,-27,-10,-86,0,0,0,0,8,0,6,0,8,8,331,89,845,814,593,336,845,778,631,387,929,854,29966,29968,29971,29970,29970,29970,29988,29989]} 1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 4. Nf3 Nxb5 5. Nxb5 Nf6 6. e5 Nd5 7. Ng5 f6 8. Qf3 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6.} Nc7 9. exf6 exf6 {[#]} 10. Nxc7+ $146 {The position is equal.} (10. Qe2+ {looks sharper.} Ne6 11. Ne4 a6 12. Ned6+ Ke7 13. Nf5+) ({Predecessor:} 10. Qe4+ Ne6 11. Nxh7 f5 12. Qxf5 Qh4 13. Nxf8 Rxf8 14. Qg6+ Kd8 15. Qg3 Qa4 16. Nc3 Qxc2 {1-0 (29) Yilmazyerli,M (2491)-Bolat,A (2124) Ankara 2018}) 10... Qxc7 11. Nh3 Bd6 12. d3 $1 O-O 13. Bf4 Re8+ 14. Kd2 Bxf4+ 15. Nxf4 Qc6 (15... d6 $11 {keeps the balance.}) 16. Qd5+ $1 $16 Qxd5 17. Nxd5 {Strongly threatening Nc7.} Rb8 18. Rhe1 Re6 (18... Re5 $16) 19. Nc7 $18 Rc6 ({Black should try} 19... Rxe1 $18 20. Rxe1 b5) 20. Nb5 ({White should play} 20. Re8+ $1 $16 Kf7 21. Rae1 Rxc7 22. R1e7+ Kg6 23. Rg8) 20... a6 $11 21. Nc3 {White wants to play Re8+.} Re6 22. f4 b6 23. f5 Rxe1 24. Rxe1 {[%mdl 4096] Endgame KRB-KRN} Bb7 25. Ne4 (25. Re7 {is more complex.} Bc6 26. g4 Kf8 27. Re3 Kf7 28. Rh3) 25... Bxe4 26. Rxe4 {KR-KR} Kf7 27. Kc3 b5 28. a4 d5 29. Re6 d4+ 30. Kb3 bxa4+ 31. Ka3 g6 32. Rc6 gxf5 33. Rxc5 f4 34. Rc4 Rg8 35. Rxd4 Rxg2 {And now ...f3 would win.} 36. c3 (36. c4 $11) 36... Rxh2 ({Better is} 36... Rf2 $1 $17 {White must now prevent ...Kg6.} 37. Rxa4 Kg6) 37. Rxf4 Rd2 38. d4 Kg6 39. Kxa4 Rxb2 40. d5 Rd2 41. c4 f5 $2 {[%mdl 8192] [#]} (41... Rd1 $1 $11) 42. Kb4 $2 (42. Rf1 $1 $18 {and the rest is easy.} Kf6 43. Kb4) 42... Kg5 $2 {[%mdl 8192] [#]} (42... Rd1 $16) 43. Rf1 $1 $18 Kf6 44. Re1 Rb2+ $2 (44... f4 45. Kc3 Rg2) 45. Kc3 Rb8 46. Kd4 a5 $2 (46... Rb2 47. Re6+ Kg5) 47. d6 a4 48. c5 {White mates.} a3 49. d7 a2 50. c6 a1=Q+ 51. Rxa1 {Accuracy: White = 65%, Black = 55%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.6"]
[White "Hoffman, Alejandro"]
[Black "Guerrero, Alvaro"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "2472"]
[BlackElo "2094"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,55,0,0,5,0,21,4,6,0,12,0,14,0,9,0,12,20,35,39,40,33,74,34,73,0,0,0,81,81,86,68,273,317,552,512,758,751,739,734,725,714]} 1. d4 Nf6 2. Nf3 g6 3. c3 Bg7 4. Bf4 d6 5. e3 O-O 6. h3 b6 7. Be2 Bb7 8. O-O Nbd7 9. a4 a6 {A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems.} 10. Nbd2 Ne4 11. Bh2 Nxd2 {[#] The position is equal.} 12. Qxd2 $146 ({Predecessor:} 12. Nxd2 e5 13. Bf3 Bxf3 14. Qxf3 Kh8 15. Rfd1 Rc8 16. Qe2 a5 17. Rac1 Qe7 18. Nc4 {0-1 (70) Blackman,K (1642)-Varona Thomas,M (1775) Baku 2016}) 12... e6 13. Rfd1 Qe7 14. b4 Rfd8 15. c4 e5 16. a5 Be4 17. axb6 cxb6 18. Ra3 a5 19. Bg3 {[%cal Rb4a5]} d5 {[#]} 20. dxe5 (20. c5 $1 $16) 20... Qxb4 $11 21. Qa2 Bxf3 (21... dxc4 $11 {keeps the balance.} 22. Bh4 c3 23. Rxc3 (23. Bxd8 c2 $11) 23... Qxc3 24. Bxd8 Nxe5) 22. Bxf3 $16 Nxe5 23. Bxd5 {And now Rb1 would win.} Nxc4 $2 ({Black should try} 23... Rac8 $14) 24. Ra4 $18 Qb2 $2 (24... Rxd5 25. Rxd5 Qe1+ 26. Kh2 b5 27. Rxb5 Nd2) 25. Qxc4 {White is clearly winning.} b5 26. Bxf7+ Kh8 27. Rxd8+ Rxd8 {[#]} 28. Qc7 $1 {[%mdl 64] Double Attack. Accuracy: White = 86%, Black = 57%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.7"]
[White "Roselli Mailhe, Bernardo"]
[Black "Rodriguez Vila, Andres"]
[Result "0-1"]
[ECO "E10"]
[WhiteElo "2433"]
[BlackElo "2492"]
[Annotator "TA"]
[PlyCount "182"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,182,31,34,25,43,27,35,35,0,30,0,35,38,45,36,28,18,39,41,71,0,0,0,2,4,14,0,0,0,0,0,0,-8,-8,-9,0,-15,0,-2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-8,-8,-8,-8,-8,-8,-44,-44,-44,-44,-44,-44,-44,-44,-44,-44,-44,-44,-44,-44,-44,-44,-44,-44,-44,-44,-44,-44,-44,-15,-15,-15,-15,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,0,-8,-8,-8,0,-15,-15,-15,-15,-15,-15,-15,-15,-15,-15,-15,-15,-15,-15,-15,0,-15,0,-15,-8,-15,-15,-15,-15,-15,-15,-15,-15,-15,-8,-15,-15,-16,-16,-16,-16,-16,-16,-1439,-16,-16,-16,-29966,-29967,-29968,-29969,-29967,-29969,-29968,-29970,-29966,-29965,-29966,-29961,-29978,-29979]} 1. d4 e6 2. c4 Nf6 3. Nf3 c5 4. d5 b5 5. Bg5 exd5 6. cxd5 h6 7. Bxf6 Qxf6 8. Qc2 Be7 {E10: Blumenfeld Gambit.} 9. e4 Qb6 10. a4 bxa4 {White is slightly better.} 11. Nbd2 O-O 12. Be2 {[#]} Qg6 $146 ({Predecessor:} 12... Na6 13. Qxa4 Nb4 14. O-O d6 15. Nc4 Qc7 16. Rfd1 Rd8 17. Qa5 Qxa5 18. Rxa5 Bb7 {½-½ (60) Butnorius,A (2348)-Foo,Z (2233) Baku 2016}) 13. O-O d6 14. Rxa4 Nd7 15. Bd3 {Threatens to win with Rfa1.} Nb6 $1 16. Ra3 f5 17. Rfa1 ({Better is} 17. Re1 $16) 17... fxe4 $1 $11 18. Bxe4 Bf5 19. Rxa7 Bxe4 20. Qxe4 Qxe4 21. Nxe4 Rxa7 22. Rxa7 Nxd5 23. Nc3 Nxc3 24. Rxe7 {[%mdl 4096] Endgame KRN-KRN} Nd1 25. b3 Rb8 26. Nd2 d5 27. Rc7 Rb5 28. h4 Nc3 29. Kh2 Ne2 30. g3 Nd4 31. Rd7 c4 32. bxc4 Rb2 33. Nf1 Nf3+ 34. Kg2 $1 {[%cal Rg2f3]} Ne1+ 35. Kh3 dxc4 36. Rc7 Rxf2 37. Ne3 Nf3 38. Nxc4 Rc2 39. h5 Ng5+ 40. Kg4 Ne4 {Strongly threatening ...Nd6!} 41. Rc8+ Kh7 42. Nd6 (42. Kf4 $5 {[%cal Rf4e4]} Nf6 43. g4 $11) 42... Nf6+ 43. Kf3 Rxc8 44. Nxc8 Nxh5 $15 {KN-KN} 45. Ne7 Nf6 46. Kf4 g6 47. g4 Nd7 48. Nd5 Kg7 49. Nc7 Kf7 50. Nd5 Ke6 51. Nc3 Nb6 {...Nd5+ is the strong threat.} 52. Ke4 Nc4 53. Kf4 g5+ 54. Kf3 Ke5 55. Ne4 Kd4 {( -> ...Ne5+)} 56. Nf6 Ne5+ 57. Kg3 Ke3 58. Ng8 Nf7 59. Nf6 Kd4 60. Ng8 Ke5 61. Kf3 Kd5 62. Kg3 Ke6 63. Kf3 Kd7 64. Kg3 Ke8 65. Nf6+ Ke7 66. Ng8+ Kf8 67. Nf6 Ne5 68. Ne4 Ke7 69. Nc5 Kd6 70. Ne4+ Ke6 71. Nc3 Nc4 72. Kf3 Ke5 73. Ne4 Nb6 74. Nc5 Nd5 75. Nb3 Nf6 76. Nc5 Kd5 77. Nd3 Nd7 78. Nb4+ Kc5 79. Nd3+ Kd4 80. Nb4 Ne5+ 81. Kg3 Ke4 82. Na6 Nd7 83. Nc7 $2 {[%mdl 8192] [#]} (83. Nb4 $11) 83... Nf6 $2 ({Black should try} 83... Nc5 $1 $19 84. Nb5 Ke3) 84. Ne6 $11 Ke3 85. Ng7 $2 {[%mdl 8192]} (85. Nd8 $11) 85... Ne4+ {Black mates.} 86. Kh3 Kf3 87. Nf5 Nf2+ {[%mdl 64] [#] Double Attack} 88. Kh2 Nxg4+ 89. Kg1 Kf4 90. Ng7 Nf6 91. Kg2 Ke5 {Accuracy: White = 86%, Black = 91%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.8"]
[White "Garcia Palermo, Carlos"]
[Black "Shtemler, Lavi"]
[Result "1-0"]
[ECO "E46"]
[WhiteElo "2434"]
[BlackElo "2199"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,63,0,0,0,-14,0,-18,-1,-28,-36,-22,0,-54,-8,-14,-12,-16,-18,-24,-3,-83,-27,-38,63,63,106,97,147,18,127,45,54,37,89,62,134,45,49,59,603,585,738,743,730,714,627,270,1952,1826]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nge2 d5 6. a3 Be7 7. cxd5 exd5 8. g3 c6 9. Bg2 Re8 {E46: Nimzo-Indian: Rubinstein: 4 e3 0-0 5 Ne2 without early Bd3.} 10. O-O Na6 11. b3 Nc7 {[#] The position is equal.} 12. Ra2 $146 ({Predecessor:} 12. Bb2 Bf5 13. Nf4 Bd6 14. Nd3 Qe7 15. Re1 Ne4 16. a4 Rad8 17. Ne2 Qf6 18. Nc3 Qh6 19. Nxe4 dxe4 {0-1 (33) Johansson,J (2131)-Norri,J (2359) Jyvaskyla 2013}) 12... Bf8 13. f3 c5 14. g4 (14. dxc5 $11 Bxc5 15. Nd4) 14... Ne6 15. dxc5 Bxc5 16. b4 Bb6 17. Na4 Bc7 18. Ng3 (18. Nac3 $11 {remains equal.}) 18... h5 (18... Bd7 $17 19. Nc3 d4 $1 {[%mdl 512]} 20. exd4 Rc8) 19. gxh5 $11 Ng5 (19... Bd7 $15) 20. f4 $14 Nge4 {[#]} 21. h6 $1 {[%mdl 512] Threatens to win with Nxe4.} gxh6 {[#]} 22. Qd4 ({Better is} 22. Bxe4 $1 $16 dxe4 23. Rd2) 22... Kh7 (22... a5 $11) 23. Bb2 (23. Rc2 $16) 23... Rg8 24. Ba1 (24. Rc1 {with more complications.} Rg6 25. Nxe4 dxe4 26. Qxd8 Bxd8 27. Bxf6 Bxf6 28. Nc5) 24... Bb6 (24... Rg6 $14) 25. Nxb6 ({Don't play} 25. Bxe4+ $6 Nxe4 26. Nxb6 Qxb6 $11) 25... Qxb6 (25... axb6 $14 26. Rc1 Rg6) 26. Nxe4 (26. Rc2 $16) 26... Nxe4 27. Qxd5 $40 {[%mdl 128] White has some attack.} Qxe3+ $2 {[%mdl 8192] [#]} (27... Qe6 $14 28. Qxe6 Bxe6) 28. Kh1 $1 $18 {[%mdl 512]} Nc3 29. Qxf7+ Rg7 30. Qf6 Be6 31. Bxc3 (31. Raf2 $142) 31... Rag8 $2 {[#]} (31... Rf7 32. Qd4 Qxd4 33. Bxd4 Bxa2) 32. Re1 $1 {Accuracy: White = 57%, Black = 40%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.9"]
[White "Carvalho, Guillermo"]
[Black "Coppola, Claudio"]
[Result "1/2-1/2"]
[ECO "A04"]
[WhiteElo "2187"]
[BlackElo "2314"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,66,10,6,8,34,29,24,26,29,22,29,15,4,6,32,16,38,9,9,6,17,0,60,-43,48,56,52,42,47,29,34,20,25,11,6,15,25,-8,0,-7,21,17,21,22,26,20,31,20,72,77,75,62,79,0,11,0,0,0,0]} 1. Nf3 b6 2. d4 Bb7 3. Bf4 g6 4. e3 Bg7 5. Be2 d6 6. O-O {A40: Unusual replies to 1 d4.} e6 7. c4 Ne7 8. Nc3 {White has an edge.} Nd7 9. e4 {[#]} h6 $146 ({Predecessor:} 9... e5 10. dxe5 Nxe5 11. Qd2 O-O 12. Nd4 N7c6 13. Nc2 Qd7 14. Bg3 f5 15. exf5 gxf5 {½-½ (35) Hentunen,A (2287)-Nivala,T (2183) Finland 2018}) 10. Ne1 f5 11. f3 Nf6 {[%cal Rf5e4]} 12. c5 g5 13. Be3 O-O {[%cal Rf5e4]} 14. cxd6 cxd6 {[%cal Rf5e4]} 15. Qb3 d5 (15... Kh8 $11) 16. Nd3 (16. e5 $14) 16... Nc6 ({Black should try} 16... dxe4 $15 17. fxe4 (17. Qxe6+ Kh7 $11) 17... Kh7 18. Qxe6 Nfd5 19. Nxd5 (19. exd5 $2 Bc8 $19) 19... Nxd5) 17. e5 $14 Ne8 18. Bf2 Na5 19. Qc2 Rc8 20. Rfc1 Rf7 21. b3 Bf8 22. Qb2 Ba6 23. Nf4 Bxe2 24. Nfxe2 Rfc7 25. Nb5 $36 {[%mdl 2048] White fights for an advantage.} Rxc1+ 26. Rxc1 Rxc1+ 27. Qxc1 Qd7 28. Nbc3 Nc7 (28... Be7 $11 {remains equal.}) 29. h4 $16 Be7 30. hxg5 hxg5 {[#]} 31. Qc2 (31. g3 $1 $16) 31... Nc6 {The position is equal.} 32. Qb1 Nb4 33. g4 f4 {Accuracy: White = 82%, Black = 73%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.10"]
[White "De Dovitiis, Alejo"]
[Black "Benoit, Rodrigo"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2314"]
[BlackElo "2170"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,73,5,10,0,31,20,26,25,57,52,58,54,50,54,83,81,78,82,83,62,73,77,102,95,115,101,129,112,112,126,116,112,177,179,172,177,506,506,499,510,489,489,485,509,508,466,509,463,516,493,470,322,480,383,404,287,526,526,526,526,519,476,430,362]} 1. Nf3 d5 2. b3 Nf6 3. Bb2 e6 4. e3 Bd6 5. c4 O-O 6. Nc3 c6 {6...c5 is the recent fashion} 7. Qc2 {A11: English Opening: 1...c6.} Na6 8. d4 {[#]} b6 $146 ({Predecessor:} 8... Bb4 9. Bd3 Bd6 10. a3 h6 11. O-O Nc7 12. e4 dxe4 13. Nxe4 Nxe4 14. Bxe4 Ne8 {½-½ (36) Rodman,F (2078)-Buha,D (1964) Komenda 2016}) 9. a3 {White has an edge.} Nc7 10. Bd3 h6 11. e4 dxe4 12. Nxe4 Be7 13. Ne5 Bb7 14. Nxf6+ Bxf6 15. Bh7+ Kh8 16. Be4 Qe8 17. Qe2 Rd8 18. O-O Ba8 19. Rad1 Bxe5 20. dxe5 Qe7 21. Bb1 {Black must now prevent Rd6!} c5 {[#]} (21... Rxd1 $16 22. Rxd1 Rd8) 22. Qc2 $1 $18 {[%csl Gb1][%cal Rc2h7]} g6 {[#]} 23. Rd6 $1 $40 {[%mdl 128] White wants a kill.} Ne8 $2 (23... Qh4 {is tougher.}) 24. Qd2 $1 {[%csl LRd8,LRh6]} Qb7 {[%csl Ga8][%cal Rb7g2]} 25. Be4 Qxe4 {[%csl Ga8][%cal Re4g2]} 26. f3 Qh4 27. Rxd8 Bc6 28. Bc1 Kg7 29. Rc8 Bb7 30. Rb8 Bc6 31. Qf4 Qh5 (31... Qxf4 $142 32. Bxf4 g5) 32. g4 Qh4 33. g5 hxg5 $2 (33... Qxf4 {was called for.} 34. Bxf4 h5) 34. Qxh4 {White is clearly winning.} gxh4 35. Bg5 Rh8 36. Rc8 Bb7 {[#]} 37. Bf6+ $1 {[%mdl 576] Skewer. Accuracy: White = 90%, Black = 51%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.11"]
[White "Vazquez, Facundo"]
[Black "Michailov, Matias"]
[Result "1/2-1/2"]
[ECO "E63"]
[WhiteElo "2155"]
[BlackElo "2262"]
[Annotator "RC"]
[PlyCount "66"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:04:43]} 2. c4 {[%emt 0:00:00]} g6 {[%emt 0:00:09]} 3. Nc3 {[%emt 0:00:07]} Bg7 {[%emt 0:00:08]} 4. g3 {[%emt 0:00:59]} O-O {[%emt 0:00:22]} 5. Bg2 {[%emt 0:00:15]} d6 {[%emt 0:00:42]} 6. Nf3 {[%emt 0:00:14]} Nc6 {[%emt 0:00:29]} 7. O-O {[%emt 0:00:17]} a6 {[%emt 0:00:18]} 8. h3 {[%emt 0:00:13]} Rb8 {[%emt 0:05:47]} 9. e4 {[%emt 0:01:17]} Nd7 {[%emt 0:00:18]} 10. Bg5 {[%emt 0:04:55]} h6 {[%emt 0:16:56]} 11. Be3 {[%emt 0:00:10]} Na5 {[%emt 0:00:24]} 12. b3 {[%emt 0:08:09]} c5 {[%emt 0:00:25]} 13. Qd2 {[%emt 0:01:08]} Kh7 {[%emt 0:00:58]} 14. Rac1 {[%emt 0:07:36]} Nc6 {[%emt 0:06:36]} 15. Rfd1 {[%emt 0:06:34]} e5 {[%emt 0:20:30]} 16. dxc5 {[%emt 0:23:04]} dxc5 {[%emt 0:00:09]} 17. Qd6 {[%emt 0:01:17]} Re8 {[%emt 0:08:45]} 18. Na4 {[%emt 0:06:32]} Nd4 {[%emt 0:11:26]} 19. Bxd4 {[%emt 0:03:58]} exd4 {[%emt 0:01:46]} 20. Nxc5 {[%emt 0:04:56]} Bf8 {[%emt 0:16:33]} 21. Qf4 {[%emt 0:01:15]} Bxc5 {[%emt 0:00:31]} 22. Qxf7+ {[%emt 0:00:09]} Kh8 {[%emt 0:00:01]} 23. Qxg6 {[%emt 0:04:24]} Re7 {[%emt 0:01:00]} 24. Qxh6+ {[%emt 0:09:25]} Rh7 {[%emt 0:00:04]} 25. Qd2 {[%emt 0:01:19]} Qe7 {[%emt 0:01:32]} 26. b4 {[%emt 0:02:56]} Bxb4 {[%emt 0:00:52]} 27. Qxd4+ {[%emt 0:00:16]} Rg7 {[%emt 0:01:07]} 28. e5 {[%emt 0:01:25]} Bc5 {[%emt 0:00:19]} 29. Qf4 {[%emt 0:00:43]} Rf7 {[%emt 0:00:31]} 30. Qh6+ {[%emt 0:01:05]} Rh7 {[%emt 0:00:02]} 31. Qf4 {[%emt 0:00:21]} Rf7 {[%emt 0:00:04]} 32. Qh6+ {[%emt 0:00:10]} Rh7 {[%emt 0:00:04]} 33. Qf4 {[%emt 0:00:11]} Rf7 {[%emt 0:00:05]} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.12"]
[White "Amura, Claudia"]
[Black "Brizzi, Milagros Tatiana"]
[Result "1/2-1/2"]
[ECO "D10"]
[WhiteElo "2245"]
[BlackElo "2022"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,55,22,18,22,22,20,21,18,17,15,44,12,37,35,46,0,50,15,18,15,35,-20,-11,-29,24,0,0,0,0,0,56,50,43,50,79,76,75,47,85,55,68,55,62,55]} 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Bf4 Nc6 6. e3 Bf5 7. Qb3 Na5 8. Qa4+ {D10: Slav Defence: 3 cxd5 (without early Nf3) and 3 Nc3.} Bd7 9. Qc2 Rc8 10. Bd3 {The position is equal.} e6 11. Nf3 Nc6 12. Qe2 {[#]} Bb4 $146 ({Predecessor:} 12... Nb4 13. Bb1 Ne4 14. O-O Nxc3 15. bxc3 Rxc3 16. Ne5 Nc6 17. Qb2 Ra3 18. Qxb7 Nxe5 19. Bxe5 {½-½ (36) Li,C (2697)-Ragger,M (2646) Graz 2014}) 13. O-O O-O 14. Rac1 h6 15. Ne5 Nxe5 16. Bxe5 a6 17. f4 (17. Rc2 $14) 17... Bxc3 $11 18. bxc3 Ne4 (18... Ne8 $142 19. f5 exf5) 19. Bxe4 dxe4 20. c4 Qe7 21. c5 {Strongly threatening Bd6.} Rfe8 ({Black should play} 21... Bb5 $11 22. Qb2 Bxf1) 22. Qb2 $36 {[%mdl 2048] White fights for an advantage.} Bb5 23. Rf2 f6 24. Bd6 Qf7 25. Qb3 Bc6 26. Rb2 Bd5 27. Qa4 Red8 {[#] aiming for ...Rxd6!} 28. Rcb1 {Accuracy: White = 65%, Black = 59%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.13"]
[White "Munoz Perez, Rolando"]
[Black "Muniz, Rafael"]
[Result "1-0"]
[ECO "A43"]
[WhiteElo "2130"]
[BlackElo "2232"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,85,56,46,52,48,46,43,49,55,43,129,130,117,130,217,207,273,273,345,329,334,324,385,379,356,348,759,208,218,94,149,75,148,150,150,145,147,121,121,121,133,123,121,120,120,125,149,147,152,144,158,130,196,177,175,160,212,216,204,172,226,243,529,549,29986,458,463,458,452,452,430,395,434,422]} 1. d4 Nf6 2. c4 c5 3. d5 d6 4. Nc3 g6 5. e4 Bg7 6. Nf3 O-O 7. Bd3 Bg4 8. h3 {E90: King's Indian: Classical: Early deviations and 6 h3.} Bxf3 $1 9. Qxf3 e6 10. O-O {White is slightly better.} exd5 11. exd5 {[#]} Na6 $146 (11... Nbd7 $14) ({Predecessor:} 11... Nfd7 12. Qd1 Re8 13. Bd2 Na6 14. a3 Qh4 15. Qg4 Qxg4 16. hxg4 Nc7 17. Rfe1 h6 18. Rxe8+ Nxe8 19. g3 Nef6 {½-½ (46) Ding,L (2777)-So,W (2810) Tbilisi 2017}) 12. Bg5 $16 {Threatens to win with Ne4.} h6 13. Bh4 g5 (13... Nb4 $16 {might work better.}) 14. Bg3 $18 Re8 15. Nb5 Bf8 16. a3 Nb8 17. Rae1 {And now Qxf6! would win.} a6 {White must now prevent ...Rxe1.} 18. Rxe8 Nxe8 {[#]} 19. Qf5 $1 {[%csl Gd3][%cal Rf5h7]} Bg7 $2 (19... Nf6) 20. Nc3 $2 (20. Re1 Nf6 21. Nxd6) 20... Nd7 21. Re1 (21. f4 $18) 21... Ne5 (21... Nf8 $142) 22. Qh7+ Kf8 23. Bxe5 $1 dxe5 24. Ne4 Nf6 25. Qf5 Nxe4 26. Bxe4 Qf6 27. Qd7 Qe7 28. Qg4 Rd8 29. Re3 Qd7 30. Qh5 Kg8 31. Rf3 Qe7 32. Qg4 Qd6 (32... b5 $16) 33. h4 Qd7 34. Rf5 f6 (34... gxh4 $16 35. Qxh4 Rf8) 35. hxg5 fxg5 36. Qh5 {Hoping for Qg6!} Qe7 (36... Qe8 $142 37. Qh3 Qd7) 37. Rf3 {Intending Qg6! and mate.} Rf8 $2 {[#]} (37... Rd6 38. Qh3 Bf8) 38. Qg6 $1 {[%csl Ge4][%cal Rg6h7][%mdl 512]} Rf4 39. Qh7+ (39. Rxf4 $142 gxf4 40. d6 Qd8 41. Qe6+ Kh8 42. d7 Qf6 43. Qe8+ Bf8 44. d8=Q) 39... Kf8 {[#]} 40. d6 $1 {[%mdl 512]} Qxd6 41. Rd3 Qf6 42. f3 g4 43. Rd7 {Accuracy: White = 75%, Black = 44%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.14"]
[White "Diaz Hollemaert, Nahuel"]
[Black "Torella, Rodolfo"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2450"]
[BlackElo "2081"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,57,-30,-32,-47,-15,-13,-13,-14,0,-28,-9,-9,-15,-25,-39,-35,21,8,8,-20,0,-20,-33,-60,-52,-66,-43,-51,0,0,143,135,150,120,124,127,254,245,649,652,636,627,953,947,940,933,5373,1555,1331,1266]} 1. Nf3 d5 2. c4 e6 3. b3 d4 4. e3 c5 {[#]} 5. Ba3 $146 ({Predecessor:} 5. exd4 cxd4 6. g3 Nc6 7. Bg2 Nf6 8. O-O Bd6 9. d3 O-O 10. a3 a5 11. Nbd2 e5 12. Qe2 Re8 13. h3 h6 14. Re1 Rb8 15. g4 Nh7 16. Ne4 Bf8 17. Bd2 {1-0 (42) Cori,J (2686)-Delorme,A (2489) Linares 2019}) 5... Nc6 6. exd4 {A13: English Opening: 1...e6.} Nxd4 7. Nxd4 Qxd4 8. Nc3 {The position is equal.} Bd7 9. Nb5 Qe5+ (9... Bxb5 $5 10. cxb5 Nf6 $11) 10. Be2 a6 11. d4 cxd4 12. Bxf8 {aiming for Bd6.} Kxf8 ({Better is} 12... axb5 $15 13. f4 Qf6) 13. Nxd4 Qa5+ 14. Kf1 e5 15. Nf3 Qc7 16. Qd2 f6 17. Rd1 Bc6 18. g4 Ne7 (18... Kf7 $15 19. Qc2 Ne7) 19. g5 $1 $36 {[%cal Rg5f6][%mdl 2048] White is pushing.} e4 (19... Nf5 $11 {keeps the balance.}) 20. Nd4 $16 {Black must now prevent Ne6+.} Qe5 21. gxf6 Qxf6 {Strongly threatening ...e3!} 22. Rg1 Kf7 {[#]} (22... g6 $16) 23. Rg4 $1 $18 {[%cal Rg4f4]} g6 $2 (23... Ng6 24. Nxc6 Qxc6 25. Qd7+ Qxd7 26. Rxd7+ Kf6) 24. Rf4 {White is clearly winning.} Nf5 25. Nxc6 Qxc6 {[#]} 26. Rxf5+ $1 {[%mdl 576] Deflection} gxf5 27. Bh5+ Kf8 28. Qg5 (28. Qb4+ $142 Kg7 29. Qe7+ Kh6 30. Qh4) 28... Rg8 29. Qxf5+ {[%mdl 64] Double Attack. Accuracy: White = 84%, Black = 46%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.15"]
[White "Meza, Anahi"]
[Black "Menna Barreto, Felipe Kubiaki"]
[Result "0-1"]
[ECO "D24"]
[WhiteElo "2046"]
[BlackElo "2395"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,66,-50,-95,-103,-108,-93,-107,-99,-119,-114,-124,-114,-117,-126,-131,-122,-117,-119,-152,-120,-132,-126,-124,-74,-62,-72,-85,-84,-185,-181,-307,-296,-296,-305,-279,-298,-305,-290,-281,-304,-293,-296,-295,-264,-282,-256,-349,-361,-616,-579,-1162,-1155,-1100,-1074]} 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Nc3 a6 5. a4 Nc6 6. e3 Na5 7. Ne5 Be6 8. Be2 g6 {D24: Queen's Gambit Accepted: 3 Nf3 Nf6 4 Nc3.} 9. O-O Bg7 10. Ra3 {[#]} c5 $1 {[%mdl 512] Black is better.} 11. dxc5 Qc7 12. Nf3 Rd8 13. Qc2 Qxc5 {[#]} 14. e4 $146 ({Predecessor:} 14. Nd4 Bc8 15. Na2 Bf5 16. Nxf5 Qxf5 17. Qc3 O-O 18. Qb4 Ne4 19. Bxc4 Nxc4 20. Qxc4 {0-1 (69) Campos Moreno,J (2305)-Garcia Palermo,C (2415) Santiago de Chile 1980}) 14... O-O 15. Be3 {[#]} Qc7 $1 16. Ng5 Bc8 17. Nf3 Ng4 18. Nd5 Rxd5 19. exd5 {aiming for b4.} Bf5 20. Qc1 {And now b4 would win.} Nxe3 21. fxe3 (21. Rxe3 $17 {was the only defense.} Qd6 22. Qe1) 21... Qb6 $36 {[%mdl 2048] Black is in control.} 22. Ra2 (22. Nd4 $142 Be4 23. d6 exd6 24. Rd1) 22... Qb3 23. Ra3 Bxb2 {[%mdl 64] Double Attack} ({Much less strong is} 23... Qxb2 24. Qxb2 Bxb2 25. Ra2 $19) 24. Rxb3 Bxc1 25. Rc3 Bb2 26. Rxc4 Nxc4 27. Bxc4 Rc8 28. Ba2 Bf6 29. h3 h5 30. Nh2 Bg5 31. Rf3 $2 (31. Re1) 31... Be4 {Black is clearly winning.} 32. Rf1 Bxe3+ 33. Kh1 {[#]} Rc2 $1 {[%mdl 64] Double Attack. Accuracy: White = 48%, Black = 85%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.16"]
[White "Dotta, Gian Franco"]
[Black "Vitoux, Colomban"]
[Result "1/2-1/2"]
[ECO "C15"]
[WhiteElo "2000"]
[BlackElo "2377"]
[Annotator "TA"]
[PlyCount "151"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,151,60,62,66,70,74,68,62,60,62,91,85,94,100,95,73,145,143,157,155,183,193,253,260,243,249,218,188,183,192,483,478,428,212,247,247,291,294,356,155,153,143,156,101,91,87,88,71,78,63,108,93,100,79,118,18,18,16,26,23,14,6,6,6,57,57,57,57,58,57,57,57,57,57,57,57,57,57,58,57,57,57,58,57,58,58,113,57,58,57,57,57,57,57,57,57,57,6,6,6,6,6,6,5,6,6,6,5,6,6,6,6,6,6,12,6,8,0,0,0,5,5,6,6,6,6,6,12,12,12,12,12,12,12,12,12,12,12,12,12,12,0]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. exd5 Qxd5 5. Nf3 Nf6 6. Bd3 Ne4 7. Bd2 {C10: French with 3 Nc3: Unusual Black 3rd moves and 3...dxe4.} Bxc3 8. bxc3 Nxd2 9. Qxd2 {White is slightly better.} c5 10. c4 Qh5 11. c3 Nc6 12. O-O $36 {[%mdl 2048] [#] White has strong initiative.} O-O $146 ({Predecessor:} 12... Bd7 13. Rab1 b6 14. Rfe1 O-O-O 15. Re4 cxd4 16. cxd4 Qa5 17. Qf4 f6 {1-0 (30) Grigore,N (2397)-Osman,M (2201) Bucharest 2000}) 13. Rfe1 Rd8 (13... cxd4 $142 14. cxd4 Qa5) 14. d5 $16 Ne7 15. Qf4 {Strongly threatening Qc7!} Ng6 16. Qc7 Bd7 (16... Rd7 {might work better.} 17. Qxc5 Rd8) 17. Bxg6 $1 $18 (17. Qxb7 Nf4 $14) (17. Qxc5 b6 $16) 17... hxg6 18. Ne5 ({But not} 18. Qxc5 $6 exd5 19. cxd5 Rac8 $16) ({Resist} 18. Qxb7 $6 exd5 19. Ne5 (19. Qxd5 Be6 $14) (19. cxd5 Rab8 $16) 19... Rab8) 18... Be8 19. Qxb7 exd5 20. cxd5 f6 $2 (20... Rab8 21. Qxa7 Ra8) 21. Nc6 Bxc6 22. Qxc6 (22. dxc6 $142 {Black must now prevent c7.} Qd5 23. c4 $1 {[%mdl 512]}) 22... Qf5 23. Re7 (23. Qxc5 Rxd5 24. Qc7 Rd2 $14) 23... Rab8 24. h3 ({Not} 24. Qxc5 Rb1+ 25. Re1 Rxa1 $14) 24... Rdc8 25. Qd7 (25. Qa4 $18 {has better winning chances.}) 25... Qxd7 $16 26. Rxd7 Rd8 27. Rxd8+ (27. Rxa7 $142 {And now c4 would win.} Rxd5 28. Re1) 27... Rxd8 {[%mdl 4096] Endgame KR-KR} 28. c4 Rb8 29. Re1 Kf7 30. a3 Rb3 31. Re3 Rb1+ 32. Kh2 Rc1 33. Rb3 (33. d6 $16) 33... Rxc4 $11 34. Rb7+ Kf8 35. Rxa7 Rd4 36. Rc7 Rxd5 37. a4 {[%cal Ba3a4,Ba4a5,Ba5a6][%mdl 32]} Rd2 (37... Kg8 $1 $11) 38. a5 $14 {Hoping for a6.} Ra2 39. Rxc5 Rxf2 40. a6 Ra2 41. Rc8+ Ke7 42. Rc7+ Kd6 43. Rxg7 Rxa6 44. Rxg6 Ke6 45. h4 Kf7 46. Rg4 Ra3 47. g3 Ra1 48. Rf4 Kg6 {[#]} (48... Ra5 $1 $14) 49. Kh3 (49. g4 $1 $16) 49... Ra3 50. Kg4 f5+ $1 51. Kh3 Ra2 52. Rb4 Rc2 53. Rb6+ Kg7 54. h5 ({Better is} 54. Ra6 $14) 54... Rc4 $11 {The position is equal.} 55. Rg6+ Kf7 56. Rd6 Kg7 57. Kg2 Rc3 58. Re6 Kf7 59. Rg6 (59. Ra6 {looks sharper.} Kg7 60. Rg6+ Kf7 61. Rb6 Kg7 62. h6+) 59... Ra3 60. Rc6 Kg7 61. Kf2 Rb3 62. Re6 Ra3 (62... Kf7 $5 {[%cal Rf7e6]} 63. Ra6 Kg7 $11) 63. Rd6 Rb3 64. Rd5 Kf6 65. h6 Kg6 66. Rd6+ Kh7 67. Rf6 Ra3 68. Kg2 Rb3 69. Kh3 f4 70. Rxf4 {aiming for Rf6.} Kxh6 71. Kh4 Kg6 72. Rc4 Rb6 73. Rc5 Rb4+ 74. g4 Rb6 75. Rc4 Ra6 76. Rc5 {Accuracy: White = 84%, Black = 75%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.17"]
[White "Mussanti, Diego"]
[Black "Pichuaga, Juan Pablo"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "2330"]
[BlackElo "2030"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,71,29,33,19,51,46,92,62,52,50,53,47,67,61,71,41,82,40,70,25,16,15,19,32,31,23,33,-78,224,227,365,346,704,666,598,562,720,741,957,956,1061,1093,1095,1140,1260,1271,1200,708,635,0,1195,1168,1153,1157,1389,1289,29985,29986,29987,29988,29990,29991,29991,29992]} 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. c3 {B15: Caro-Kann: 3 Nc3: 3...g6 and 3...dxe4 4 Nxe4 Nf6 5 Nxf6+ exf6.} Be7 7. Bd3 {[#]} b6 $146 ({Predecessor:} 7... Be6 8. Ne2 O-O 9. Qc2 g6 10. h4 f5 11. h5 Re8 12. Nf4 Bf6 13. Kf1 Nd7 {½-½ (53) Kasparov,G (2825)-Miles,A (2595) ICC INT 1998}) 8. Ne2 {White is better.} Ba6 9. c4 Bb4+ 10. Kf1 Bd6 11. Be3 Nd7 12. Nc3 Qc7 13. Ne4 Bf4 14. Qg4 Bxe3 15. Qxg7 O-O-O 16. fxe3 f5 17. Nf6 $36 {[%mdl 2048] Black must now prevent g3. White has some pressure.} f4 $1 18. e4 ({Not} 18. Qxf7 $2 Rhf8 $19) (18. Ke2 $14) 18... Ne5 $2 {[%mdl 8192]} (18... Nxf6 $17 19. Qxf6 Rhe8) 19. dxe5 $18 Rxd3 (19... Qxe5 {is a better defense.} 20. Be2 Qxb2) 20. Qxh8+ Rd8 $2 (20... Kb7) 21. Qxh7 Bxc4+ 22. Kf2 b5 {and the idea ...Be6 leaves Black hopeful.} 23. Qf5+ Kb8 24. Qxf4 Qb6+ 25. Kg3 Rd3+ 26. Kh4 Qd8 {[#]} 27. Rad1 $3 Qh8+ (27... Rxd1 28. Rxd1) 28. Nh5 Qd8+ 29. Nf6 Qh8+ $1 30. Kg5 {Strongly threatening e6+.} Qg7+ {[#]} 31. Kh5 $1 Rxd1 32. Rxd1 Be2+ 33. Kh4 {White mates.} Bxd1 34. e6+ Kb7 35. e7 Qh8+ 36. Kg3 {Accuracy: White = 61%, Black = 60%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.18"]
[White "Meskanen, Vesa"]
[Black "Contin, Daniel"]
[Result "0-1"]
[ECO "A47"]
[WhiteElo "2019"]
[BlackElo "2267"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,54,53,57,34,62,60,75,34,39,4,34,43,32,33,54,11,12,-14,55,8,12,0,0,-16,-11,-213,0,-172,-82,-81,-85,-195,-180,-303,-283,-304,-304,-315,-304,-314,-318,-291,-287,-476,-430,-418,-407]} 1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. c4 Bxf3 5. exf3 e6 6. Bg2 {A50: Queen's Fianchetto Defence (1 d4 Nf6 2 c4 b6).} d5 7. O-O c6 8. cxd5 {White is better.} cxd5 9. Nc3 Nc6 {[#]} 10. Be3 $146 ({Predecessor:} 10. f4 g6 11. Qa4 Qd7 12. Be3 a6 13. Rfc1 Na5 14. Qd1 Bd6 15. Na4 Rb8 16. Bf1 {0-1 (60) Silman,J (2345)-Whitehead,J (2420) New York 1987}) 10... Qd7 11. Rc1 Na5 12. Rc2 Be7 13. Re1 b5 ({Black should try} 13... O-O $11) 14. Bf1 a6 15. b3 O-O 16. Bd2 Nc6 $36 {[%mdl 2048] Black has some pressure.} 17. Nxb5 $2 {[#]} (17. Be3 $11) 17... Rfb8 $2 (17... axb5 $19 18. Bxb5 Rfc8) 18. Qc1 $2 (18. Nc3 $1 $11 {and White has nothing to worry.}) 18... Rb6 (18... Rc8 $19 {is more deadly.} 19. Bg5 Qb7) 19. Nc7 $17 Ra7 20. Re3 (20. Nxa6 $17 {might work better.} Rbxa6 21. Bxa6 Rxa6 22. Qa1) 20... Nxd4 $19 ({Resist} 20... Rxc7 {[#]} 21. Ba5 $1 $17 {[%mdl 512]}) 21. Ba5 (21. Rcc3 $142) 21... Nxc2 22. Bxb6 Nxe3 ({Not} 22... Rxc7 23. Bxc7 Nxe3 24. fxe3 $11) 23. Bxa7 Nxf1 24. Kxf1 Bd8 25. Bb6 Ne8 {[%cal Rd8c7]} 26. Na8 $2 (26. Nxd5 {was necessary.} exd5 27. Bxd8 Qxd8 28. Qc6) 26... Bxb6 27. Nxb6 Qb5+ {[%mdl 64] Double Attack. Accuracy: White = 31%, Black = 70%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.19"]
[White "El Ters, Antouan"]
[Black "Gomez Troccoli, Martin"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2189"]
[BlackElo "2004"]
[Annotator "TA"]
[PlyCount "135"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,135,29,60,0,15,21,47,31,144,152,127,129,201,202,217,99,108,105,104,101,102,101,116,104,107,109,123,124,133,130,127,125,145,125,112,133,132,116,122,115,119,104,128,100,133,81,97,80,85,78,86,69,113,68,93,71,224,213,193,123,114,134,118,135,118,118,121,38,66,61,70,4,145,160,324,118,332,322,353,344,573,519,493,317,380,378,415,300,299,292,285,242,411,404,373,364,433,418,577,570,453,50,50,70,50,81,54,52,58,79,386,235,29974,29975,29978,29980,29989,29990,29992,29993,29993,29994]} 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. Nc3 e5 6. d4 exd4 7. Nxd4 O-O 8. O-O Nbd7 9. a4 {[#] A24: English Opening vs King's Indian: Lines without ...Nc6.} ({White should try} 9. e4 $14) 9... Ne5 $146 ({Predecessor:} 9... Nb6 10. Qd3 a5 11. Ndb5 Be6 12. b3 d5 13. c5 Nc8 14. Bf4 Ne8 15. Rad1 c6 {0-1 (51) Arun,R (1450)-Mohit,K (1599) New Delhi 2018}) 10. b3 c6 11. Ba3 {White is slightly better.} Qc7 {[#]} (11... h5 $14) 12. Ndb5 $1 $16 {[%cal Rb5c7][%mdl 512]} cxb5 13. Bxd6 {[%mdl 64] Double Attack} Qd7 (13... Qa5 $16 {was necessary.}) 14. Bxe5 $18 Qe6 15. Bxf6 (15. Qd4 $18 {and White stays clearly on top.} Re8 16. f4) 15... Qxf6 $16 16. Rc1 bxc4 17. Nd5 Qd8 18. bxc4 Rb8 19. Qb3 Bd7 20. Qb4 Re8 21. e3 Bc6 22. Rfd1 Bf8 23. Qb3 Bg7 24. Qa3 Bf8 25. Qa2 Bg7 26. a5 {[%cal Ba4a5,Ba5a6][%mdl 32]} Qd6 27. a6 Qc5 28. Rb1 b6 29. Qb3 Rec8 30. Qb4 (30. Nf4 $142) 30... Qxb4 31. Rxb4 {aiming for Ne7+.} Bf8 32. Rbb1 Kg7 33. h4 Bc5 34. h5 Bd7 35. Nxb6 Bxb6 $2 (35... Bf5 $16 {was worth a try.}) 36. Rxd7 $18 {Hoping for Bd5.} Rxc4 37. Bd5 ({White should play} 37. Rb7 $18 Rbc8 38. hxg6) 37... Rc7 $16 38. Rxb6 Rc1+ 39. Kg2 Rxb6 40. Rxf7+ {[%mdl 4096] Endgame KRR-KRB} Kh6 41. hxg6 (41. Rxa7 $16 Rd6 42. Bb7) 41... hxg6 $14 42. Rxa7 {And now Ra8 would win.} Ra1 43. Bb7 (43. Bc4 $14) 43... Rb2 (43... Ra2 $1 $11 {keeps the balance.}) 44. Ra8 $16 Raa2 $2 {[#]} (44... Rc2 $16 45. Be4 Rd2) 45. Rf8 $2 (45. Bd5 $1 $18 {[%cal Rd5a2] and the rest is easy.} Ra1 46. a7) 45... Kg5 $2 (45... Kg7 $16 46. Rf3 Ra5) 46. Rf7 $18 Ra1 47. Kh3 Ra3 $2 (47... Kh6 48. f4 Ra3) 48. g4 {White wants to mate with f4+.} Kh6 49. Kg3 Rb4 50. f3 Ra1 51. f4 {Threatening mate with g5+.} g5 52. Rf6+ Kg7 53. fxg5 Rba4 $2 (53... Rb5 {keeps fighting.} 54. Rd6 Rxg5) 54. e4 Ra5 {[#]} 55. Rf5 $1 R5a3+ 56. Kf4 Kg6 57. Rf6+ Kg7 58. e5 $2 (58. Rd6 $18) 58... Rf1+ $14 59. Ke4 Re1+ 60. Kf5 {Strongly threatening g6.} Ra5 61. Re6 {g6 is the strong threat.} Rf1+ 62. Ke4 {Black must now prevent g6.} Rfa1 $2 {[%mdl 8192]} (62... Re1+ $16 {is more resistant.} 63. Kf3 Kf7 64. Rf6+ Kg7) 63. g6 R1a4+ $2 (63... Rf1 $18 64. Rb6 Re1+ 65. Kf4 Rf1+ 66. Kg3 Re1) 64. Kf5 {White mates.} Kf8 65. Kg5 Ra1 66. Kh6 R5a3 67. g7+ Kf7 68. Rf6+ {Accuracy: White = 61%, Black = 46%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.20"]
[White "Rodriguez Farias, Eduardo"]
[Black "Trois, Francisco R.T."]
[Result "1-0"]
[ECO "B22"]
[WhiteElo "1963"]
[BlackElo "2141"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,61,0,0,27,-22,73,58,75,72,74,28,186,76,75,79,79,82,70,64,83,0,36,38,37,24,140,19,100,0,283,268,360,268,348,317,307,285,464,444,646,585,835,506]} 1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Nf3 Nc6 6. cxd4 e6 7. Bc4 d6 8. O-O Be7 9. Qe2 O-O 10. Nc3 {The old main line.} Nxc3 11. bxc3 Qc7 {B22: Sicilian: 2 c3.} 12. Bd3 {[#]} Bd7 $146 (12... dxe5 $1 $11 13. dxe5 b6) ({Predecessor:} 12... dxe5 13. dxe5 b6 14. Qe4 g6 15. Bh6 Rd8 16. Rad1 Bb7 17. Qf4 Rd7 18. Be4 Rad8 19. Rxd7 Rxd7 20. h4 f5 21. Bxf5 exf5 22. Qc4+ Kh8 23. Qf7 {1-0 (23) Hoellrigl,W (2217)-Ballon,G (2091) Bregenz 2019}) 13. Qe4 $16 {[%csl Gd3][%cal Re4h7] [#]} g6 {White is slightly better.} 14. Bh6 Rfe8 15. h4 Na5 $2 {[#]} (15... dxe5 $11 16. dxe5 Nb8) 16. h5 (16. Qf4 $1 $18) 16... Bc6 17. Qg4 {[%cal Rh5g6]} Bxf3 18. gxf3 {[%cal Rh5g6]} ({Much worse is} 18. Qxf3 dxe5 19. Qg3 Bf8 $11) 18... Bf8 19. exd6 $40 {[%mdl 128] White is up to no good.} Qxd6 20. Bxf8 (20. Bd2 {is more complex.} Rac8 21. hxg6 fxg6 22. Kg2 Nc4 23. Bf4) 20... Qxf8 21. hxg6 hxg6 22. Kg2 Nc6 (22... Rac8 $11 {keeps the balance.}) 23. Rab1 (23. Rh1 $16) 23... b6 (23... Qe7 $11) 24. Bb5 ({White should try} 24. Rh1 $16) 24... Rac8 $2 {[%mdl 8192]} (24... Qd6 $1 $11) 25. Rh1 $18 Red8 26. Ba6 Rb8 27. Rh3 Qg7 28. Rbh1 Rd5 $2 (28... Qf6 29. Qg3 Kf8) 29. Qf4 {White is clearly winning.} Ra5 (29... Rh5 $142 30. Qc7 Rxh3 31. Rxh3 Qf6 32. Qxc6 Kg7) 30. Bc4 Rf8 31. Qd6 {Accuracy: White = 53%, Black = 30%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.21"]
[White "Aguilar Samper, Valentin"]
[Black "Dominguez, Facundo"]
[Result "0-1"]
[ECO "A20"]
[WhiteElo "1946"]
[BlackElo "2135"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,66,22,13,25,8,16,0,0,-7,21,0,0,0,0,0,0,-50,-31,-43,0,0,0,0,0,-12,-11,-12,0,-38,-15,-32,-18,-18,-4,-11,0,-20,-10,-43,-27,-218,-167,-6080,-6056,-2248,-2308,-1953,-1917,-29994,-902,-29996,-29997]} 1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nc3 Nb6 6. Nf3 Nc6 7. O-O Be7 8. Rb1 a5 9. d3 O-O {A29: English Opening: Four Knights Variation with 4 g3.} 10. Be3 Be6 11. Bxb6 cxb6 {The position is equal.} 12. Qa4 {[#]} Qd6 $146 ({Predecessor:} 12... f5 13. Rfd1 Bf6 14. a3 Kh8 15. e3 Bf7 16. Rbc1 Be8 17. Qb3 Bf7 18. Qc2 Bh5 {0-1 (43) Bosiocic,M (2591)-Karjakin,S (2785) Doha 2016}) 13. a3 Rfd8 14. Nb5 Qd7 15. Rbc1 Rac8 16. Qd1 f6 17. Nd2 Nd4 18. Nxd4 Qxd4 19. Rxc8 Rxc8 20. Qb1 Qd7 21. Rc1 b5 22. Rc2 a4 23. Qc1 Rxc2 24. Qxc2 Qc8 25. Qd1 Bd7 26. Bd5+ Kf8 27. e4 g6 28. f4 $2 (28. h4 $11 {and White stays safe.}) 28... Bh3 {[#] Hoping for ...Qc5+.} 29. fxe5 $2 (29. Nf3 exf4 30. Kf2) 29... Qc5+ $19 30. Kh1 Qf2 {[%csl Gf2][%cal Rh3g2]} 31. Qg1 Qxd2 {[%mdl 64] Double Attack} 32. exf6 Bxf6 (32... Qxd3 $142 33. fxe7+ Kg7 34. Qd4+ Qxd4 35. e8=N+ Kh8 36. Bc4 Qxe4+ {[%mdl 64] Double Attack} 37. Kg1 Qg2#) 33. g4 {[#]} Bd4 $1 {[%mdl 512] Accuracy: White = 52%, Black = 78%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.22"]
[White "Avedisian, Alexander"]
[Black "Carbone, Diego"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "1892"]
[BlackElo "2239"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,82,4,11,-8,-12,-12,-14,-17,-14,-23,-16,-14,-7,-20,-26,-20,-15,-47,-54,-60,-62,-63,-60,-108,-114,-118,-54,-113,-1,-1,0,-145,-145,-379,-379,-371,-369,-362,-378,-371,-367,-334,-258,-296,-272,-256,-276,-527,-487,-442,-378,-343,-356,-354,-347,-321,-318,-318,-317,-317,-291,-302,-250,-379,-247,-460,-469,-421,-450,-432,-258,-674,-553]} 1. g3 g6 2. Bg2 Bg7 3. c4 d6 4. Nc3 c5 5. Nf3 Nc6 6. O-O e6 $1 {[%mdl 4] 6...e6 is the recent fashion} 7. d3 {A37: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3.} Nge7 8. Bg5 h6 9. Bf4 {The position is equal.} e5 10. Bd2 Be6 11. Ne1 O-O 12. Nc2 d5 13. cxd5 Nxd5 {[#]} 14. Nxd5 $146 ({Predecessor:} 14. Ne3 Nde7 15. a3 Qd7 16. Rb1 Rac8 17. Qa4 Rfd8 18. Rfc1 b6 19. Nc4 Nd4 20. Qxd7 Rxd7 {1-0 (43) Stark,L (2401)-Schmider,N (2150) Neustadt an der Weinstrasse 2017}) 14... Bxd5 15. Bxd5 Qxd5 16. Ne3 Qe6 17. a4 f5 18. Nc4 f4 ({Black should play} 18... e4 $17 19. Rc1 Rad8 20. dxe4 fxe4) 19. Kg2 (19. Bc3 $15) 19... f3+ (19... fxg3 $17 20. hxg3 e4) 20. exf3 $11 Nd4 21. f4 (21. Be3 $11 {remains equal.}) 21... exf4 $17 22. Bxf4 $2 (22. f3 $17) 22... g5 $19 23. Be3 Qd5+ 24. f3 {[#]} Nxf3 $1 {[%mdl 512]} 25. Rxf3 {And now g4 would win.} g4 {[%mdl 64] Pin} 26. Bf4 Rad8 (26... gxf3+ $2 27. Qxf3 Rad8 28. Rd1 $19) 27. Ra3 b6 28. h3 h5 29. Rb3 $2 (29. hxg4 hxg4 {[%mdl 64] Pin} 30. Kf2 gxf3 31. Qxf3) 29... Rfe8 (29... Qxf3+ $2 30. Qxf3 gxf3+ 31. Kxf3 $19) 30. Nd2 ({Much worse is} 30. hxg4 hxg4 31. Kf2 gxf3) 30... gxf3+ 31. Qxf3 Re2+ 32. Kf1 Qxf3+ 33. Nxf3 Rxb2 34. Rxb2 Bxb2 {[%mdl 4096] Endgame KRB-KBN} 35. Ke2 Bc3 36. Ng5 Ba5 37. Ne4 (37. Be3 {was worth a try.}) 37... Kf7 38. g4 $2 (38. Be5) 38... hxg4 39. hxg4 Rd4 40. Bb8 Kg6 (40... Ke6 $142 41. Ke3 Rxa4 42. Bxa7 Ra3) 41. Bxa7 $2 (41. Nd6) 41... Rd8 {Accuracy: White = 46%, Black = 59%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.23"]
[White "Barandiaran, Gabriel"]
[Black "Curi, Gabriel"]
[Result "1/2-1/2"]
[ECO "B72"]
[WhiteElo "1834"]
[BlackElo "2132"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,95,0,5,0,-17,-24,-16,-39,-8,-13,-18,-41,-22,-63,-60,-99,-91,-117,-131,-118,-116,-138,-123,-118,0,-67,-33,-91,-91,-106,-91,-106,-42,-25,0,-12,0,0,-70,0,0,0,0,0,40,0,0,-101,0,0,0,0,72,79,72,17,70,72,239,227,231,212,206,16,91,112,120,17,21,25,26,26,33,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Nc6 7. Be3 Bg7 8. Qd2 O-O 9. f3 d5 10. exd5 {B76: Sicilian Dragon: Yugoslav Attack, 9 g4 and 9 0-0-0.} Nxd5 11. Nxc6 bxc6 12. Bd4 e5 13. Bc5 Re8 14. Rd1 {[%cal Rc3d5]} Be6 15. Nxd5 cxd5 16. Bb5 Qc7 17. Bxe8 Qxc5 18. Ba4 {[#]} e4 $146 ({Predecessor:} 18... Rb8 19. Bb3 Rd8 20. Qf2 Qb4+ 21. c3 Qb5 22. Qxa7 Bf8 23. Qe3 Bc5 24. Qe2 Qc6 {1-0 (54) Claros Egea,C (2121)-Montenegro Garcia,M (2021) Malaga 2005}) 19. c3 exf3 20. gxf3 Bf6 (20... Bh3 $1 $17 {Hoping for ...Qe7+.} 21. Qf4 d4 $1 {[%mdl 512]} 22. Rxd4 Bxd4 23. Qxd4 Qg5) 21. Qf4 (21. Qf2 $1 $11 Qa5 22. Bb3) 21... Kg7 {[%mdl 1024] Black has compensation.} (21... g5 $5 {[%cal Rg5f4]} 22. Qd2 (22. Qxf6 $2 Qe3+ 23. Kf1 Bh3#) 22... Rb8 $11) 22. Rd3 (22. Rd2 $15) 22... Rd8 $17 23. h4 {Threatening h5.} h5 24. Bb3 Bf5 {[#]} (24... a5 $1 $17) 25. Rd4 $1 $15 {[%mdl 512]} Re8+ (25... Bxd4 26. Qxd4+) 26. Kd2 Qe7 (26... Be5 $5 27. Qe3 $8 Bxd4 28. Qxd4+ (28. Qxe8 Bf6 $11) 28... Qxd4+ 29. cxd4 Kf6 $11) 27. Rxd5 Qe2+ 28. Kc1 Be5 29. Rxe5 $1 ({Avoid the trap} 29. Qd2 $2 Qxf3 30. Re1 Bf4 $1 $19 {[%mdl 512]}) 29... Rxe5 30. Rd1 Re7 31. Qd4+ Kh7 32. Qf4 {[#]} (32. Qf6 $11) 32... a5 ({Better is} 32... Qf2 $1 $17 33. Qc4 Qxf3) 33. Rd2 $36 {[%mdl 2048] White fights for an advantage.} Qf1+ 34. Bd1 $1 Qb5 (34... Re1 $11 {remains equal.}) 35. Rd8 $16 Rb7 {[%csl Gb7][%cal Rb5b2]} 36. Bb3 (36. b3 $16 Qc5 37. Kb2) 36... Re7 (36... Qf1+ $1 $11 37. Bd1 Qf2) 37. Qd4 {[%csl Gd4][%cal Rd8h8]} Re1+ $2 (37... Re8 $16) 38. Bd1 $18 {[%csl Gd4][%cal Rd8h8]} Qe5 39. Qxe5 Rxe5 {[%mdl 4096] Endgame KRB-KRB} 40. Bb3 $2 (40. Rd4 $18) 40... g5 (40... Re3 $11) 41. hxg5 $16 h4 {[#]} 42. Rd5 ({White should play} 42. Rd6 $1 $16) 42... Re1+ $1 $11 43. Kd2 h3 $1 {[%cal Rh3h2] aiming for ...h2.} 44. Rxf5 h2 45. Rxf7+ (45. Rf6 $5 {[%cal Rf6h6]} h1=Q 46. Rh6+ Qxh6 47. Bc2+ (47. gxh6 Re7 $16) 47... Kh8 48. gxh6 $16) 45... Kg6 {The position is equal.} 46. Kxe1 {Black must now prevent Rf6+.} h1=Q+ 47. Kd2 Qh2+ 48. Kd3 {Accuracy: White = 67%, Black = 62%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.24"]
[White "De Haro, Martim Afonso Palma"]
[Black "Suarez, Pedro"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "1788"]
[BlackElo "2063"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,74,21,22,78,23,17,16,31,16,38,10,34,33,32,26,22,0,32,28,28,0,0,0,0,0,0,0,0,0,0,0,45,22,34,-18,-8,-5,-14,-20,0,-14,0,-10,0,0,0,0,4,0,0,0,2,-13,64,0,0,-38,0,0,0]} 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 g6 5. b3 Bg7 6. Bb2 O-O 7. O-O d6 8. d4 c5 9. Nc3 {[#]} Qc8 $146 {A30: Symmetrical English: Double Fianchetto and Hedgehog.} (9... e6 $11 {remains equal.}) ({Predecessor:} 9... cxd4 10. Nxd4 Bxg2 11. Kxg2 Qd7 12. Qd3 Nc6 13. Rac1 Rac8 14. Rfd1 Rfd8 15. f3 a6 16. Nxc6 Rxc6 17. a4 Rcc8 18. e4 h5 19. Qe2 {0-1 (64) Vitiugov,N (2747)-Predke,A (2676) Moscow 2019}) 10. Qc2 (10. d5 $16) 10... cxd4 $11 11. Nxd4 Bxg2 12. Kxg2 Qb7+ 13. Kg1 (13. e4 {seems wilder.} a6 14. f3 Nbd7 15. a4 Rac8 16. Rad1) 13... Nc6 (13... a6 {is interesting.} 14. Rfd1 Rc8 15. a4 Nbd7 16. e4 e6) 14. Nxc6 Qxc6 15. Rad1 Rac8 16. e4 Qb7 17. Nd5 Nxd5 18. exd5 Bxb2 19. Qxb2 b5 20. cxb5 Qxb5 21. Rfe1 Rc7 22. Qd2 Rfc8 23. Re4 Qe8 24. Qh6 {Strongly threatening Rh4.} Qf8 25. Qxf8+ ({Better is} 25. Qe3 $14) 25... Kxf8 $14 {[%mdl 4096] Endgame KRR-KRR} 26. Ra4 Rb7 27. Kg2 Rc2 28. Kf3 Ke8 29. Ke3 Kd7 30. h4 h5 31. Rdd4 Rc3+ 32. Rd3 Rc2 33. f3 Rg2 34. Kf4 Re2 ({Black should play} 34... f6 $11) 35. Re3 ({White should try} 35. Kg5 $1 $14) 35... Rd2 $11 36. Ke4 Rg2 37. Kf4 Rd2 {Accuracy: White = 80%, Black = 75%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.25"]
[White "Moreno, Nelson"]
[Black "Escofet, Jaime"]
[Result "1/2-1/2"]
[ECO "A04"]
[WhiteElo "1656"]
[BlackElo "2025"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,54,24,27,9,17,14,30,30,35,30,25,36,50,29,37,27,28,38,49,53,41,7,17,5,22,16,37,43,39,27,41,54,55,41,59,60,44,40,31,52,37,43,57,57,97,27,103]} 1. Nf3 e6 2. c4 c6 3. b3 d5 4. Bb2 Nf6 5. e3 Be7 6. Be2 {A06: Réti Opening: 1 Nf3 d5.} O-O 7. O-O a5 8. Nc3 Nbd7 9. Qc2 Re8 {[#]} 10. d4 $146 ({Predecessor:} 10. Rfd1 Bf8 11. d4 g6 12. Rac1 Bh6 13. Ne5 Nxe5 14. dxe5 Nd7 15. f4 Qb6 16. Rd4 Bxf4 17. Rxf4 Qxe3+ {1-0 (28) Mueller,H-Diez,G Germany 1996}) 10... Bd6 11. e4 (11. Bd3 {looks sharper.} h6 12. Rae1 dxc4 13. bxc4 b6 14. Nd2) 11... dxe4 12. Nxe4 Nxe4 13. Qxe4 a4 14. bxa4 Rxa4 15. Qd3 Be7 16. Bd1 Ra8 17. Bc2 Nf8 18. a4 b6 19. Ne5 Bb7 20. Qf3 Bf6 21. Be4 Bxe5 22. dxe5 Qc7 23. Rfd1 Red8 24. Rxd8 Rxd8 25. Bc3 Ra8 26. h4 Ra7 {[#]} 27. h5 (27. c5 $1 $16) 27... h6 {Accuracy: White = 85%, Black = 88%.} (27... c5 $11 {keeps the balance.}) 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.26"]
[White "Soto, Nicolas"]
[Black "Silva Rosas, Natalia"]
[Result "1-0"]
[ECO "B42"]
[WhiteElo "2002"]
[BlackElo "1787"]
[Annotator "TA"]
[PlyCount "49"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,49,64,32,43,40,40,0,54,43,102,47,56,49,126,60,210,193,194,140,143,134,686,552,774,775,848,830,846,839,836,839,938,825,889,858,943,933]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5 6. Nb3 Ba7 7. O-O Nc6 8. Qe2 (8. Qg4 $5 {[%cal Rg4g7]}) 8... Qc7 {B42: Sicilian: Kan Variation: 5 Bd3.} 9. c4 Nf6 10. Kh1 {[#]} Bb8 $146 (10... Nb4 $11) ({Predecessor:} 10... Nb4 11. f4 Nxd3 12. Qxd3 b5 13. cxb5 axb5 14. Nc3 Qc4 15. Qxc4 bxc4 16. Nd2 d5 {1-0 (32) Crouan,S (2178)-Secher,D (1615) Nantes 2015}) 11. f4 $14 Nb4 (11... d6 $14) 12. Nc3 (12. e5 $16 Nxd3 13. Qxd3) 12... Nxd3 13. Qxd3 d6 {[#]} (13... b5 $14) 14. Be3 (14. Qg3 $1 $16 {[%cal Rg3g7]} O-O 15. Be3) 14... Ba7 (14... O-O $14) 15. Bxa7 Rxa7 16. Rad1 ({Better is} 16. e5 $18 dxe5 17. fxe5) 16... O-O $16 17. Qxd6 Qxc4 $2 {[%mdl 8192]} (17... b6 $16 18. e5 Qxd6 19. Rxd6 Ng4) 18. Qb6 {White is clearly winning.} Ra8 19. Na5 $1 {[%csl LRb7,LRc4][%mdl 64] [#] Double Attack} Nd7 20. Nxc4 Nxb6 21. Nxb6 Rb8 22. e5 f5 23. exf6 gxf6 24. Ne4 e5 25. f5 {Accuracy: White = 47%, Black = 34%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.27"]
[White "Manteiga, Franco"]
[Black "Montanu, Dan-Vladimir"]
[Result "1/2-1/2"]
[ECO "A88"]
[WhiteElo "1703"]
[BlackElo "1983"]
[Annotator "TA"]
[PlyCount "160"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,160,31,10,34,25,21,0,8,5,68,60,72,25,83,51,107,106,104,77,168,152,610,235,209,116,114,106,112,108,106,106,106,106,110,95,81,84,114,81,133,133,151,147,154,142,153,135,165,136,138,147,233,233,229,110,120,94,94,94,94,94,94,93,94,63,94,63,94,94,94,94,94,94,94,94,94,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-29945,-29940,-29942,-29937,-29971,-29971,-29971,-29972,-29971,-29973,-29976,-29975,-29975,-29976,-29976,-29977,-29978,-29975,-29973,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8]} 1. d4 f5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nf3 d6 6. O-O O-O 7. Nc3 c6 8. Qc2 {8.b3 is becoming the main line.} a5 {A88: Dutch Defence: Leningrad System: 5 Nf3 0-0 6 0-0 d6 7 Nc3 c6.} 9. b3 Na6 10. a3 Qe8 11. Bb2 h6 (11... e5 $11) 12. Rad1 {[#]} Nc7 $146 ({Predecessor:} 12... g5 13. Na4 Nd7 14. d5 cxd5 15. Bxg7 Kxg7 16. cxd5 b5 17. Nb2 b4 18. Nd4 Ndc5 {1-0 (38) Shimanov,A (2549)-Cori Tello,D (2415) Moscow 2012}) 13. d5 c5 (13... Bd7 $11) 14. Rde1 e5 ({Black should play} 14... b5 $14) 15. dxe6 $16 Bxe6 16. e4 (16. Nh4 {seems wilder.} Qf7 17. e4 fxe4 18. Nxe4 Nxe4 19. Bxe4 Bxb2 20. Qxb2 Qf6 21. Qd2) 16... fxe4 (16... Nxe4 $16 17. Nxe4 fxe4) 17. Nxe4 $18 Bf5 $2 (17... Nxe4 $16 18. Bxg7 (18. Rxe4 Bf5 $11) 18... Kxg7) 18. Nxf6+ $2 (18. Bxf6 Qf7 19. Bxg7 Qxg7 20. Nh4) 18... Bxf6 19. Rxe8 (19. Qd2 $18 Qd7 20. Bxf6 Rxf6 21. Qxh6) 19... Bxc2 $16 20. Rxa8 Nxa8 21. Bxf6 Rxf6 22. Nd2 Nb6 23. Rc1 Bd3 24. Rc3 Bf5 25. Bxb7 Kf8 26. Be4 Bg4 (26... Bxe4 $142 27. Nxe4 Re6) 27. f3 $36 {[%mdl 2048] White is in control.} Bc8 28. Kf2 Ke7 29. Re3 Kd8 30. a4 Nd7 31. Kg2 g5 32. Bd5 {And now Ne4 would win.} Ne5 (32... Rf8 $16 33. Ne4 Kc7) 33. Ne4 $18 Rg6 34. Nf2 (34. Nxd6 $18 {is more deadly.} Rxd6 35. Rxe5) 34... Rg7 35. Nd3 Re7 36. Nxe5 Rxe5 37. Rxe5 dxe5 $16 {[%mdl 4096] Endgame KB-KB} 38. Be4 Ke7 39. Kf2 Kf7 40. Ke3 Kf6 41. g4 Ke7 42. Bd5 Kd6 43. Ke4 Bd7 44. Bb7 Kc7 {[#]} 45. Ba6 (45. Ba8 $1 $16 Kd6 46. Bd5) 45... Bc6+ $11 46. Kxe5 {Strongly threatening f4.} Bxf3 47. Kf5 {Kg6 is the strong threat.} Kd6 48. Bb5 Bd1 49. Kg6 Ke5 50. Kxh6 Kf4 51. h3 Bf3 52. Kh5 Bd1 53. Bd7 Bxb3 54. h4 $2 {[%mdl 8192] [#]} (54. Bb5 $11) 54... gxh4 55. Kxh4 Bxc4 56. g5 Bf7 57. Bb5 c4 58. g6 Bg8 59. g7 Ke3 60. Bxc4 Bxc4 {KB-KPP} 61. Kg3 Kd3 62. Kf3 Bg8 63. Kf2 Kc4 $2 (63... Kd2 {mates} 64. Kf3 Bd5+ 65. Kf4 Kc3 66. Kg4 Kb3 67. Kh5 Kxa4 68. Kg5 Kb4 69. Kh6 a4 70. Kh7 a3 71. g8=Q Bxg8+ 72. Kxg8 a2 73. Kf7 a1=Q 74. Ke6 Qa5 75. Kf6 Qh5 76. Ke7 Kc5 77. Ke6 Kc6 78. Kf6 Kd6 79. Kg7 Ke6 80. Kg8 Kf6 81. Kf8 Qh8#) 64. Ke2 {The position is equal.} Kb4 65. Kd2 Kxa4 {KB-KP} 66. Kc1 Ka3 {( -> ...Ka2)} 67. Kb1 Ba2+ 68. Ka1 a4 69. g8=Q Bxg8 70. Kb1 Kb3 71. Ka1 Kc3 72. Kb1 Be6 (72... a3 {looks sharper.} 73. Ka1 Bd5 74. Kb1 Be4+ 75. Ka1 Kd2) 73. Ka1 Bd7 74. Kb1 Kd2 75. Kb2 Bf5 76. Ka1 $1 Kc1 77. Ka2 Bg4 78. Ka1 Bd1 79. Ka2 Kc2 80. Ka1 Kc3 {Accuracy: White = 70%, Black = 66%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.28"]
[White "Siddeley, Hugh"]
[Black "Osinaga, Eduardo"]
[Result "1-0"]
[ECO "B54"]
[WhiteElo "1974"]
[BlackElo "1697"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,87,23,47,47,47,47,72,71,73,54,74,63,67,61,68,62,60,0,54,43,55,36,66,67,83,67,112,106,154,134,160,167,170,163,211,135,207,190,212,213,223,197,328,125,207,181,202,202,204,200,197,168,195,201,202,191,370,287,377,380,650,347,491,216,362,347,697,689,1529,1018,1251,1222,29973,29974,29974,29975,29975,4132,29976,29977]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 e5 5. Bb5+ Bd7 6. Bxd7+ {B54: Sicilian: 2...d6 3 d4 cxd4 4 Nxd4, Unusual Lines .} Qxd7 7. Ne2 h6 8. Nbc3 {White is better.} Nf6 9. Ng3 {[#]} Be7 $146 ({Predecessor:} 9... Qc6 10. O-O Na6 11. Qe2 Nc7 12. Rd1 O-O-O 13. Be3 Kb8 14. a4 a6 15. a5 h5 16. Ra4 {0-1 (54) Paramos Dominguez,R (2429)-Markovic,G ICC INT 2009}) 10. Nh5 O-O 11. Nxf6+ Bxf6 12. Nd5 Bd8 13. g4 (13. O-O $14) 13... Bh4 (13... Nc6 $11) 14. Be3 Na6 15. Rg1 f6 16. Qd2 Bg5 17. O-O-O Qa4 18. Nc3 Bxe3 19. Qxe3 (19. Nxa4 $6 Bxd2+ 20. Rxd2 Kf7 $14) (19. fxe3 $6 Qc6 $14) 19... Qb4 20. h4 Qc5 21. Qg3 Rf7 22. Rd2 Nc7 (22... Re8 $16) 23. g5 $1 $18 fxg5 24. hxg5 hxg5 25. Qxg5 Ne6 {[#]} (25... Re8 {keeps fighting.} 26. Rh1 Rf6) 26. Qg6 $2 (26. Qh4 $1 $18 {and the rest is easy.} Nc7 27. Nd5 (27. Rh1 Rf6 $18) 27... Nxd5 28. Rh1 (28. exd5 Raf8 $14) (28. Rxd5 Qxf2 29. Qxf2 Rxf2 $11)) 26... Re8 (26... Nf4 $16 27. Qxd6 Qxd6 28. Rxd6 Nh3) 27. Rh1 Nf4 {[#]} 28. Qh7+ {Played: Rh1-h8} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.29"]
[White "Cucchi, Nicolas"]
[Black "Vassallo, Mariano"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "1970"]
[BlackElo "1313"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,92,9,57,61,47,56,68,65,60,27,26,26,35,30,31,35,72,61,58,51,62,44,61,47,62,63,72,72,72,68,69,73,55,56,40,29,39,29,14,18,27,22,31,28,70,32,84,84,84,0,84,84,84,84,84,84,84,74,84,74,84,84,117,117,117,117,117,39,39,30,30,0,0,0,0,0,29975,29979,29978,29980,29982,29983,29983,29984,29986]} 1. Nf3 c5 2. b3 e6 3. Bb2 d5 4. e3 Nf6 5. c4 g6 6. cxd5 {A13: English Opening: 1...e6.} exd5 7. Bb5+ Bd7 8. Bxd7+ {White is slightly better.} Nbxd7 9. O-O Bg7 10. Nc3 O-O 11. d4 cxd4 12. Nxd4 Nb6 {[#]} 13. Qe2 $146 ({Predecessor:} 13. Rc1 a6 14. Nde2 Qe7 15. Nf4 Rad8 16. Qd4 Qd6 17. Rfd1 Nh5 18. Qd2 Nxf4 19. exf4 {0-1 (39) Fuccio,S (1778)-Guerra,E (1900) Gorgonzola 2007}) 13... Qe7 14. Rfd1 Ne4 15. Rac1 Rac8 16. Ndb5 a6 17. Ba3 Nxc3 18. Rxc3 Qd7 19. Bxf8 Bxc3 20. Nxc3 {And now Bb4 would win.} Kxf8 21. Qd2 Qc6 22. Ne2 Qc2 23. g3 Qxd2 24. Rxd2 $11 {[%mdl 4096] Endgame KRN-KRN} Ke7 25. Nf4 Rc1+ 26. Kg2 Ra1 27. Kf3 Kf6 (27... g5 $14) 28. Nd3 Nd7 29. Nf4 Nb6 $1 30. Nxd5+ Nxd5 31. Rxd5 Rxa2 $16 {KR-KR} 32. Rd6+ $1 Kg7 {[#]} 33. Rb6 $1 Rb2 34. Rxb7 a5 35. Rb5 Ra2 36. g4 a4 37. bxa4 Rxa4 38. h4 ({White should play} 38. Kg3 $16) 38... h5 $1 $14 39. gxh5 Rxh4 40. Kg3 Rxh5 41. Rxh5 gxh5 $11 {KPP-KPP} 42. Kh4 Kf6 $2 {[%mdl 8192]} (42... Kg6 $11) 43. Kxh5 {White mates.} Kf5 {[#]} 44. f3 $1 f6 45. f4 Ke6 46. Kg6 Kd5 {Accuracy: White = 86%, Black = 83%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.30"]
[White "De la Torre, Andres"]
[Black "Durante, Aurelio"]
[Result "0-1"]
[ECO "A06"]
[WhiteElo "1595"]
[BlackElo "1955"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,78,-31,-20,-45,-50,-41,-43,-52,-7,-23,-10,-20,16,13,4,-52,-10,-16,-11,-56,-51,-116,-67,-75,-77,-75,-68,-65,-27,-28,-8,-13,-12,-19,-12,-124,-83,-133,0,-95,-10,-15,-11,-12,8,-53,-53,-56,-55,-511,-511,-511,-511,-551,-499,-758,-758,-1250,-1254,-1620,-1248,-1556,-1253,-1235,-1198,-1155,-1187,-1163,-1072,-980,-968]} 1. Nf3 d5 2. g3 Nf6 3. Bg2 c5 4. d3 Nc6 5. c3 e5 6. Bg5 {A08: King's Indian Attack.} Be7 7. Nbd2 O-O 8. O-O {[#] Black is slightly better.} Bf5 $146 ({Predecessor:} 8... Be6 9. c4 d4 10. Qb3 Qc8 11. h3 Bd7 12. Rfe1 Qe8 13. Rab1 h6 14. Bxf6 Bxf6 15. Qc2 Qc8 {½-½ (15) Cordioli,J (1858)-Frohlich,M (1440) Sao Bento do Sul 2019}) 9. Bxf6 Bxf6 10. e4 dxe4 11. dxe4 Be6 12. Nb3 (12. Re1 $11) 12... Qe7 13. Qc2 b5 14. Rad1 a5 15. Nc1 (15. Rd5 $15) 15... h6 16. Qe2 Bc4 $36 {[%mdl 2048] Keeping White busy.} 17. Nd3 Bxa2 18. Qe3 Bb3 19. Rd2 $1 c4 20. Nc5 Rfd8 {Threatening ...Rxd2.} 21. Nxb3 cxb3 22. Rfd1 (22. Qb6 $1 $11 {keeps the balance.} Rxd2 23. Nxd2) 22... Rxd2 $17 23. Rxd2 Rd8 (23... a4 $17 {Strongly threatening ...a3.} 24. Qb6 {[%mdl 64] Double Attack} Na5 25. Qxb5 a3 26. bxa3 Qc7) 24. Rxd8+ (24. Qb6 $11 Rxd2 25. Nxd2) 24... Qxd8 (24... Nxd8 $17 25. Qd3 b4) 25. Bf1 Qd1 {Threatens to win with ...Nd8.} 26. Kg2 b4 27. Qc5 ({White should play} 27. cxb4 $11 Nxb4 28. Bc4) 27... bxc3 $15 28. Qxc3 Qc2 $1 {[%cal Rc2c3] [#] Hoping for ...Qxc3.} 29. Bd3 $2 {[%mdl 8192]} (29. Qc4 $15) 29... Qxc3 $19 {Black is clearly winning.} 30. bxc3 {[%mdl 4096] Endgame If only White now had time for Nd2.... KBN-KBN} Bg5 {And now ...a4 would win.} 31. h4 Bc1 {...a4 is the strong threat.} 32. Bc4 (32. Bb5 $142 Na7 33. Ba4) 32... a4 {[%cal Ba5a4,Ba4a3][%mdl 32] aiming for ...Na5.} 33. Ne1 Na5 34. Bd5 a3 {Played: Bc1-d2} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.31"]
[White "Bon, Charles"]
[Black "Moccero, Eduardo"]
[Result "1/2-1/2"]
[ECO "B00"]
[WhiteElo "1614"]
[BlackElo "1926"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,53,18,42,37,29,-18,39,-25,8,17,21,0,-11,-14,47,14,46,0,0,0,0,0,0,0,9,0,0,0,14,-57,-37,-50,-50,-57,-57,-258,-75,-76,-44,-79,-18,-18,-16,-49,-25,-132]} 1. e4 Nc6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Bd3 Bg6 6. Bxg6 {B00: Queen's Fianchetto Defence, Nimzowitsch Defence.} hxg6 {[#]} 7. a3 $146 ({Predecessor:} 7. c3 Be7 8. b4 Qd7 9. Nbd2 O-O-O 10. Nb3 Rf8 11. a4 f6 12. b5 Nd8 13. Nc5 Bxc5 14. dxc5 {1-0 (47) Naerland,T (2043)-Overas,J (1818) Sandnes 2014}) 7... Qd7 (7... f6 $1 $11) 8. Nc3 ({White should try} 8. Qd3 $14) 8... Nh6 9. Qd3 Nf5 10. Bg5 Be7 11. Bxe7 Ncxe7 ({Black should play} 11... Qxe7 $11 12. O-O-O O-O-O) 12. O-O-O Nc6 13. g4 Nh4 14. Nxh4 Rxh4 15. h3 O-O-O 16. f4 Qe7 17. Qe3 Rdh8 18. Kb1 R8h7 19. g5 (19. Ka2 $11) 19... Na5 20. Ne2 Qe8 21. Rh2 Qb5 22. Rdh1 $2 {[#]} (22. b3 $15) 22... Nc4 $2 (22... Qxb2+ $1 $19 {[%mdl 512]} 23. Kxb2 Nc4+ {[%mdl 64] Double Attack} 24. Ka2 Nxe3) 23. Qc3 $17 b6 24. Ka2 c5 (24... Qa5 $17 {With the idea ...Qxc3.} 25. Qd3 Rh8) 25. b3 Na5 26. dxc5 Qxc5 27. Qxc5+ {Accuracy: White = 49%, Black = 54%.} (27. Qd2 $11) 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.13"]
[Round "7.32"]
[White "Aprahamian, Tomas"]
[Black "Pinero, Ismael"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1415"]
[BlackElo "1914"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,86,76,23,54,21,27,25,41,42,44,35,35,-16,4,8,10,-16,14,-4,19,0,4,-54,-54,-67,-11,-104,-103,-98,-94,-115,-96,-84,-39,-39,-39,-39,-48,-57,-39,-56,-61,-78,-42,-100,34,-118,-115,-156,-117,-150,-125,-123,-130,-260,-239,-270,-258,-215,-208,-913,-882,-804,-738,-29991,-29992,-29992,-29993,-29993,-29994,-29995,-29996,-29996,-29997]} 1. d4 Nf6 2. Nf3 g6 3. e3 Bg7 4. Be2 d6 5. O-O O-O 6. c4 Nbd7 7. Nc3 c5 8. b3 ({White should play} 8. d5 $16) 8... a6 {E61: King's Indian: Early deviations for White, including Smyslov System.} 9. Bb2 b6 10. Qc2 Bb7 {White has an edge.} 11. d5 b5 {[#]} 12. Rad1 $146 ({Predecessor:} 12. e4 b4 13. Nd1 a5 14. Ne3 Nb6 15. e5 Ne8 16. exd6 exd6 17. Bxg7 Nxg7 18. Bd3 {½-½ (57) Atalik,E (2447)-Munkhzul,T (2255) St Petersburg 2018}) 12... b4 13. Ne4 (13. Na4 $14) 13... a5 14. Nxf6+ Nxf6 15. Nd2 e5 16. e4 Nd7 17. Bd3 a4 18. f4 (18. bxa4 $11 Qa5 19. Ra1) 18... axb3 19. axb3 Ra2 (19... exf4 $15 20. Bxg7 Kxg7 21. Rxf4 Ra3) 20. Qb1 {[#]} (20. f5 $1 $11 {keeps the balance.}) 20... Rxb2 $1 $17 21. Qxb2 {White wants to play f5.} exf4 22. Qb1 Bd4+ 23. Kh1 Be3 24. Nf3 Ne5 25. Nxe5 dxe5 26. Qc2 Bd4 {[%mdl 1024] Black has compensation.} 27. Qe2 Bc8 28. Bc2 h5 29. Qe1 ({White should try} 29. Rxd4 $15 exd4 30. Rxf4) 29... g5 ({Better is} 29... Qe7 $17) 30. Bd3 $2 {[#]} (30. Rxd4 $1 $14 {was the only good move.} cxd4 31. Qxb4) 30... g4 31. Rc1 h4 32. Rc2 Qg5 33. Ra2 Kg7 34. Qe2 (34. Qd2 $17) 34... h3 $19 35. g3 f3 36. Qe1 f5 37. exf5 $2 (37. Ra8) 37... Bxf5 38. Bxf5 Qxf5 39. Re2 f2 {Black mates.} 40. Rexf2 Bxf2 41. Rxf2 Qxf2 {[%cal Rf2e1]} 42. Qxe5+ Rf6 {[%csl Gh3][%cal Rf2g2]} 43. Qg5+ Kf8 {Accuracy: White = 53%, Black = 71%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.1"]
[White "Lima, Darcy"]
[Black "Acosta, Pablo Ismael"]
[Result "0-1"]
[ECO "E11"]
[WhiteElo "2526"]
[BlackElo "2416"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,90,6,-4,26,28,35,37,35,22,31,29,46,37,39,41,27,27,49,41,58,51,65,16,33,27,31,32,31,31,42,27,62,47,64,38,49,31,58,60,49,39,37,31,33,44,41,37,31,0,0,0,11,12,14,-12,-10,-16,-22,-14,-21,-86,-75,-94,-99,-174,-134,-131,-127,-222,-143,-147,-129,-539,-538,-6145,-5398,-5947,-273,-258,-258]} 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. Nc3 O-O 6. Qc2 d5 7. e3 c5 {E11: Bogo-Indian.} 8. a3 Bxc3 9. Bxc3 cxd4 {[#] White is slightly better.} 10. Bxd4 $146 ({Predecessor:} 10. Nxd4 e5 11. Nf3 e4 12. Nd2 Nbd7 13. cxd5 Re8 14. Bc4 Ne5 15. Bb5 Bd7 16. Bxd7 Nexd7 {0-1 (28) Schachinger,M (2232)-Wohl,A (2439) Graz 2005}) 10... Nc6 11. Bc3 Qe7 12. Bd3 h6 13. O-O dxc4 14. Bxc4 Bd7 15. Rac1 Rfc8 16. Rfd1 Be8 17. Ba2 b5 18. Bb1 b4 19. axb4 axb4 20. Be1 g6 21. Qc4 Nd5 22. Qe2 Qf6 23. g3 Nb6 24. e4 Nd7 25. Kg2 Rab8 26. Rc2 g5 27. h3 Nde5 28. Nxe5 Qxe5 29. Qe3 Rd8 30. Rdc1 Qd4 31. Qe2 ({Wrong is} 31. Rxc6 $2 Qxe3 32. fxe3 Bxc6 $19) 31... Ne5 {Threatens to win with ...Bb5.} 32. Rd2 Qb6 33. Qh5 Kg7 34. Qd1 Bb5 35. Qb3 Rdc8 36. Rdc2 (36. Rxc8 $1 $11 {remains equal.} Rxc8 37. f4) 36... Rxc2 $17 37. Bxc2 Bc4 38. Qa4 (38. Qe3 $17) 38... Qd4 39. Rd1 {[#]} Qc5 $1 $36 {[%mdl 2048] Black is really pushing.} ({Reject} 39... Qxb2 $6 40. Rb1 $11) 40. Rd2 (40. Bd2 $17 {was worth a try.}) 40... Bb5 41. Qb3 Ra8 {And now ...Ra1 would win.} 42. Bb1 $2 {[%mdl 8192]} (42. f4 $17 {is a better chance.} Ba4 43. Bf2) 42... Ra1 $19 43. Qd1 Qc4 44. Bd3 Rxd1 $2 (44... Nxd3 45. Rxd3 Rxd1 46. Rxd1 Qxe4+ 47. Kg1 Bc6 48. f3 Qxf3 49. Rd2 Qe3+ {[%mdl 64] Double Attack} 50. Kf1 Bb5+ 51. Kg2 Qxe1 52. Rc2 Bd3 53. Rf2 Be4+ 54. Rf3 {[#]} Qe2+ $1 {[%mdl 576] Double Attack, Pin} 55. Kh1 Bxf3+ 56. Kg1 Qg2#) 45. Bxc4 Rxd2 {Accuracy: White = 61%, Black = 83%.} ({Not} 45... Rxe1 46. Bxb5 Rxe4 47. Kf1 $17) 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.2"]
[White "Vazquez, Guillermo"]
[Black "Delgado Ramirez, Neuris"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2524"]
[BlackElo "2634"]
[Annotator "TA"]
[PlyCount "40"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,40,10,14,6,20,14,13,0,0,-6,2,0,0,0,0,0,20,13,22,-4,-8,-3,-5,-5,-5,-2,-4,-8,-13,-3,2,6,7]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nd3 Nxe4 5. Qe2 Qe7 {The position is equal.} 6. Nf4 {[#] And now Nd5 would win. C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves.} Nf6 7. d4 Bf5 {[#]} (7... Qxe2+ {seems wilder.} 8. Bxe2 Nc6 9. c3 Bf5 10. O-O O-O-O) 8. Qxe7+ $146 ({Predecessor:} 8. Be3 c6 9. Nc3 d5 10. f3 h5 11. O-O-O Nbd7 12. Qd2 Qb4 13. Bd3 Bxd3 14. Nxd3 {1-0 (27) Hjartarson,J (2534)-Putka,V (2358) Tallinn 2019}) 8... Bxe7 9. Bd3 Bxd3 10. Nxd3 Nbd7 {[%cal Bb8d7,Bd7b6,Bb6d5][%mdl 32]} 11. O-O O-O-O 12. Nc3 Nb6 13. Re1 Rhe8 14. Kf1 Nfd5 15. Nxd5 Nxd5 16. Bd2 Bf6 17. c3 Kd7 18. g4 Rxe1+ 19. Rxe1 Re8 20. Rxe8 Kxe8 {Accuracy: White = 91%, Black = 100%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.3"]
[White "Hernandez Guerrero, Gilberto"]
[Black "Hoffman, Alejandro"]
[Result "1/2-1/2"]
[ECO "C41"]
[WhiteElo "2557"]
[BlackElo "2472"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,58,29,26,26,38,48,44,39,60,36,53,54,58,47,53,53,46,48,52,44,47,57,84,58,81,88,81,74,61,50,91,89,104,60,76,80,93,58,64,65,68,62,64,71,72,48,39,31,65]} 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Be7 6. g3 O-O 7. Bg2 {C41: Philidor Defence.} Re8 8. O-O c6 9. h3 Bf8 10. Bf4 a5 11. g4 Na6 12. Re1 Nc5 13. Qd2 {[#]} h5 $146 ({Predecessor:} 13... Qc7 14. Rad1 Nfd7 15. Bg3 Ne5 16. a4 g6 17. b3 f6 18. Kh1 Nf7 19. f4 Bd7 {1-0 (51) Vovk,A (2621)-Abergel,T (2440) La Massana 2015}) 14. g5 Nfd7 15. b3 Ne5 16. Bg3 $36 {[%mdl 2048] White fights for an advantage.} Qb6 17. Re3 g6 18. f4 Ned7 19. Kh1 Bg7 20. Rd1 Nf8 21. a3 {[%cal Ba2a3,Ba3b4][%mdl 32]} Bd7 22. Bf2 Rad8 23. Ree1 Bc8 24. Bg1 Qc7 25. b4 axb4 26. axb4 Na6 27. Rb1 b5 28. Nde2 Nd7 29. Qe3 Bb7 {Accuracy: White = 84%, Black = 85%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.4"]
[White "Hungaski, Robert"]
[Black "Tristan, Leonardo"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2504"]
[BlackElo "2533"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,119,22,27,25,31,36,27,25,25,3,39,35,42,41,35,43,40,0,0,0,41,47,39,21,33,7,7,0,32,26,23,39,30,-55,-90,-65,-55,-65,-72,-61,-73,-60,33,-131,-132,-135,-135,-132,-109,-214,-215,-227,-233,-224,-226,-196,-114,-132,-103,-115,-119,-181,-173,-203,-131,-132,-131,-124,-128,-135,-92,-91,-99,-133,-86,-97,-106,-114,-101,-220,-93,-184,-187,-170,-167,-133,-127,-179,-168,-300,-203,-260,-269,-391,-395,-387,-387,-526,-516,-510,-390,-289,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 a6 5. cxd5 exd5 6. Bg5 {D37: Queen's Gambit Declined: 5 Bf4.} Be6 7. e3 Nbd7 8. Bd3 {White has an edge.} h6 9. Bh4 g5 10. Bg3 Nh5 11. Qc2 Nxg3 12. hxg3 Bg7 13. Bf5 Qf6 14. g4 {[#]} h5 $5 $146 {[%mdl 8] New and interesting.} ({Predecessor:} 14... O-O 15. Ne2 c5 16. Ng3 Rfc8 17. Qd2 Qe7 18. Rd1 Nf6 19. dxc5 Rxc5 20. Nd4 Rac8 {1-0 (46) Martirosyan,H (2607)-Andreikin,D (2725) chess.com INT 2019}) 15. Bxe6 fxe6 16. gxh5 g4 17. Ng1 O-O-O 18. Nge2 Kb8 19. Nf4 c5 20. dxc5 Nxc5 21. Ncxd5 (21. Qg6 $11) 21... Qxb2 $15 ({But not} 21... exd5 $6 22. Qxc5 d4 23. O-O $14) 22. Qxb2 Bxb2 23. Rb1 Na4 $1 {[%mdl 1024] Black has compensation.} 24. Ne7 Rh7 $1 {[%cal Rh7e7]} 25. Nfg6 ({Don't play} 25. Nxe6 Rd6 $17) 25... Re8 ({Better is} 25... Kc7 $1 $15 26. O-O Ba3) 26. Rh4 $2 (26. h6 $14) 26... Bf6 $1 $17 {[%cal Rf6h4][%mdl 64] Double Attack} 27. Rxg4 Rxh5 28. Nc6+ Ka8 $1 29. Rb3 (29. Rc1 $17 Nc3 30. Kd2) 29... Nc5 $19 30. Na5 Nxb3 31. Nxb3 Rc8 32. Nf4 Rh1+ (32... Rhh8 $19 {Hoping for ...Rc2.} 33. Ke2 Rc2+ 34. Kf3 e5) 33. Kd2 $17 Rb1 34. Nd3 Bc3+ 35. Kc2 (35. Ke2 $17) 35... Rf1 36. Nbc5 Bf6 {White must now prevent ...Be7.} 37. Kd2 Ra1 38. Ra4 Ka7 39. g4 Rc6 40. Nb3 Rg1 41. Rf4 Bc3+ 42. Ke2 e5 43. Re4 b5 44. Ndc5 (44. Nxe5 $17 Bxe5 45. Rxe5) 44... Kb6 (44... a5 $1 $19 {has better winning chances. And now ...a4 would win.} 45. a4 Bb4 46. Rxe5 Kb6) 45. Nd7+ (45. Kd3 $17 {was necessary.} b4 46. Nd7+ Kc7 47. Nxe5 Bxe5 48. Rxe5) 45... Kc7 $19 46. Nxe5 Bxe5 47. Rxe5 {[%mdl 4096] Endgame KRR-KRN} Rc2+ 48. Kf3 Rxa2 49. Nc5 (49. Rf5 $142) 49... Kc6 50. Nd3 {[#]} a5 $1 {[%cal Ba6a5,Ba5a4][%mdl 32]} 51. Rc5+ (51. Re6+ {was called for.} Kc7 52. Re7+ Kd6 53. Ra7) 51... Kb6 52. Rc8 Rd2 53. Ke4 {and the idea Rb8+ leaves White hopeful.} Rxg4+ 54. f4 {Now Rb8+ and White clings on.} a4 55. Rb8+ {[#]} Ka5 $2 (55... Kc7 $1 $19 {[%cal Rc7b8]} 56. Rxb5 a3) 56. Ne5 {The position is equal.} Rg7 {...Rd6 is the strong threat.} 57. Nc6+ Ka6 {aiming for ...a3.} 58. Nb4+ Ka5 59. Nc6+ Ka6 {Strongly threatening ...a3.} 60. Nb4+ {Accuracy: White = 55%, Black = 66%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.5"]
[White "Garcia Palermo, Carlos"]
[Black "Liascovich, Lucas"]
[Result "0-1"]
[ECO "D23"]
[WhiteElo "2434"]
[BlackElo "2425"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,56,-12,0,-66,-67,-49,-68,-67,-67,-79,-83,-83,-106,-95,-99,-95,-61,-143,-146,-251,-189,-204,-203,-400,-433,-421,-403,-691,-686,-1402,-716,-591,-452,-429,-433,-441,-439,-791,-815,-767,-794,-1144,-1073]} 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. Qa4+ Nc6 5. Nc3 Nd5 6. e4 Nb6 7. Qd1 Bg4 8. d5 Ne5 {[%mdl 64] [#] Pin} 9. Be2 {D23: Queen's Gambit Accepted: 3 Nf3 Nf6 sidelines.} (9. Bf4 $1 $11 Bxf3 10. gxf3) 9... Bxf3 $1 $15 10. gxf3 e6 11. f4 {Black is slightly better.} Ned7 {[#]} 12. dxe6 $146 ({Predecessor:} 12. Be3 exd5 13. Nxd5 c6 14. Nxb6 axb6 15. Bxc4 Bc5 16. Qg4 g6 17. Rd1 Qe7 18. Rxd7 Qxd7 19. Qxd7+ Kxd7 20. Bxf7 {½-½ (48) Djurkovic,M (2105)-Raetsky,A (2505) Aschach 1995}) 12... fxe6 13. Qd4 Qh4 14. Qe3 Bb4 15. a3 Be7 16. Nb5 (16. Qg3 $15) 16... O-O-O $17 17. Nxa7+ Kb8 18. Nb5 Nc5 19. b4 $2 (19. O-O) 19... Nd3+ $19 20. Kf1 Rhf8 {[%cal Rd3f4]} 21. a4 (21. Rg1 $142 Rxf4 22. Bxd3) 21... Nxf4 {Black is clearly winning.} 22. a5 Nh3 {[%cal Rf8f2]} ({Not} 22... Qg5 23. Qg3 $17) 23. f3 Nf4 {[#] ( -> ...Qh3+)} 24. h3 Nc8 ({Weaker is} 24... Bxb4 25. Qf2 $19) 25. a6 bxa6 26. Na7 (26. Nd4 $142 Rd6 27. Nf5 exf5 28. Qxf4 fxe4 29. Qxh4 Bxh4 30. Ra3) 26... Nxa7 27. Rxa6 c5 28. Rxa7 Nxe2 {Accuracy: White = 40%, Black = 69%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.6"]
[White "Rodriguez Vila, Andres"]
[Black "De Dovitiis, Alejo"]
[Result "0-1"]
[ECO "A46"]
[WhiteElo "2492"]
[BlackElo "2314"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,137,8,16,0,22,3,21,15,30,7,26,14,29,0,29,7,14,3,55,0,54,56,50,8,34,0,0,-57,-59,-64,-48,-41,-19,-45,-56,-61,-73,-71,-75,-75,-83,-85,-79,-54,-42,-66,0,0,0,-241,-251,-208,-142,-147,-208,-208,-77,-72,-30,-32,-26,-27,0,0,0,0,0,-12,0,-104,0,0,0,0,0,0,56,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,29,-58,0,0,0,0,0,-22,0,0,0,-97,0,-53,0,0,0,0,0,0,0,-12851,-27994,-27995,-27995,-27996,-27996,-27997,-27997,-27998,-27998,-27999,-27999,-27999]} 1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. O-O Be7 6. b3 O-O {6...c5 is not played anymore.} 7. Bb2 c5 {7...c5 scores better than 7...d5.} 8. dxc5 {A47: 1 d4 Nf6 2 Nf3 b6: Torre, London and Colle Systems.} bxc5 9. c4 d6 10. Nc3 {The position is equal.} Nbd7 11. Qc2 {[#]} Re8 $146 ({Predecessor:} 11... Bc6 12. Rad1 Qc7 13. Ng5 h6 14. Nge4 Qb7 15. f4 Rad8 16. Nxf6+ Nxf6 17. e4 Nd7 {1-0 (40) Rodriguez Vila,A (2443)-Malbran,G (2244) Buenos Aires 2014}) 12. Rad1 h6 13. Nd2 Qb6 14. f4 d5 15. Nf3 a6 (15... Rad8 $11) 16. Qf2 (16. Ne5 $14) 16... d4 (16... Bd6 $11) 17. exd4 $14 cxd4 18. Na4 Qc7 $1 19. Nxd4 (19. Ne5 $5) 19... Nc5 20. Nc3 ({Better is} 20. Kh1 $11) 20... Nxd3 $15 21. Rxd3 Rad8 22. Na4 Ne4 23. Qe2 Nc5 24. Nxc5 Bxc5 25. Kh1 e5 $1 $36 {[%cal Re5d4][%mdl 2048] Black has strong initiative.} 26. Nf5 Rxd3 27. Qxd3 {Black must now prevent Qg3!} exf4 28. Bxg7 Qc6 {[%csl Gb7][%cal Rc6g2]} (28... Be4 $5 29. Qh3 $8 f3 30. gxf3 Bxf5 31. Qxh6 f6 $1 {[%mdl 512]} 32. Bxf6 Qh7 $15) 29. Qh3 f3 (29... Re2 $15 30. Nxh6+ Kxg7 31. Nf5+ {[#]} Kg8 $1 {[%mdl 512]} 32. Qg4+ {[%mdl 64] Double Attack} Qg6 33. Nh6+ Kf8 $1 {[%mdl 512]} 34. Qxe2 Qxh6) 30. gxf3 $11 Re1 $1 {( -> ...Qxf3+)} 31. Kg2 $2 (31. Nxh6+ $11 Kxg7 32. Nf5+ Kf6 33. Qh6+ Kxf5 34. Qh5+ Kf6 35. Qh6+ Kf5 36. Qh5+ Kf6 37. Qh6+ Kf5) 31... Qg6+ $19 32. Qg3 {[#]} Re2+ {Played: Bb7xf3} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.7"]
[White "Menna Barreto, Felipe Kubiaki"]
[Black "Munoz Perez, Rolando"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "2395"]
[BlackElo "2130"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,91,39,40,38,31,28,24,38,29,34,0,0,-1,0,-7,7,-81,-47,-32,-24,-66,-53,-63,-68,-61,-60,-50,95,99,94,104,107,78,191,195,371,362,348,294,293,241,743,732,666,619,593,319,341,345,343,346,497,357,675,674,641,620,649,631,636,620,2301,607,607,585,4801,1451,2376,647,1287,1683,1344,1497,1075,1066]} 1. d4 Nf6 2. Nf3 e6 3. Bf4 c5 4. e3 b6 5. Bd3 Bb7 6. Nbd2 cxd4 7. exd4 Be7 8. h3 O-O 9. O-O d6 10. c3 Nbd7 {A47: 1 d4 Nf6 2 Nf3 b6: Torre, London and Colle Systems.} 11. Re1 Qc7 12. a4 a6 {White has an edge.} 13. Bh2 Rfe8 14. c4 Bf8 15. a5 bxa5 16. Qa4 {[#]} e5 $146 {Hoping for ...e4.} ({Predecessor:} 16... Bc6 17. Qxa5 Qb7 18. Qc3 Rec8 19. Reb1 e5 20. Bf1 Ne4 21. Nxe4 Bxe4 22. Re1 Bxf3 23. Qxf3 Qxf3 24. gxf3 exd4 {½-½ (76) Golubov,S (2481)-Jakovenko,D (2714) Moscow 2016}) 17. Bf5 ({Wrong is} 17. Qxa5 $2 Qxa5 18. Rxa5 e4 $19) (17. Bf1 $11) 17... g6 18. Bxd7 $1 Nxd7 19. d5 Reb8 20. Qxa5 Qxa5 21. Rxa5 Bc8 22. b3 Nc5 (22... f6 $15 {keeps the upper hand.}) 23. Rxc5 $1 $16 dxc5 24. Bxe5 Rb6 {[#]} 25. Ne4 $1 Bg7 (25... Rxb3 $16 26. Nf6+ Kh8) 26. Nxc5 $18 Bf5 $2 (26... Bf8) 27. Bc7 Rf6 28. d6 Bf8 29. d7 {Strongly threatening Re8.} Bxc5 $2 (29... Rc6) 30. Re8+ {[%mdl 64] [#] Double Attack} Bf8 31. Rxa8 Bxd7 32. c5 Re6 33. Bd6 Be8 34. Rxa6 Bh6 (34... Bxd6 {was called for.} 35. cxd6 Kg7) 35. b4 f6 $2 (35... Bf8 36. Ng5 Re1+ 37. Kh2 h6) 36. Ra8 {White is clearly winning.} Kf7 37. Ra7+ Kg8 38. Rb7 Bc6 39. Rb8+ Re8 40. Nd4 (40. Rxe8+ $142 Bxe8 41. Nd4) 40... Rxb8 41. Bxb8 {KBB-KBN} Ba4 42. c6 Kf7 43. Bd6 (43. b5 $142 Ke7 44. Bg3) 43... Bd2 44. b5 {Threatening mate with c7.} Ba5 45. c7 Bxc7 46. Bxc7 {Accuracy: White = 65%, Black = 41%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.8"]
[White "Larrea, Manuel"]
[Black "Diaz Hollemaert, Nahuel"]
[Result "0-1"]
[ECO "C50"]
[WhiteElo "2243"]
[BlackElo "2450"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,82,36,79,88,93,97,110,98,117,24,30,-26,41,22,49,28,29,22,35,23,58,0,4,14,18,0,0,0,0,0,3,0,-8,-20,20,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,217,0,0,0,0,0,0,-43,-54,-139,-111,-283,-291,-255,-114,-127,-93,-261,-12,-232,-232,-251,-216]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 d6 4. d4 Bg4 5. h3 Bxf3 6. Qxf3 {[%csl Gc4][%cal Rf3f7] C50: Hungarian Defence and Giuoco Pianissimo.} Nf6 7. d5 $1 {[%cal Rd5c6]} Nb8 {[#]} 8. g4 $146 {White is better.} ({Predecessor:} 8. Nc3 Nbd7 9. a4 Be7 10. a5 a6 11. Ne2 O-O 12. g4 Nc5 13. Ng3 Ne8 14. b4 {0-1 (41) Burnazov,L (1933)-Fotin,V (2315) Moscow 2018}) 8... Be7 9. Bf1 (9. g5 $16) 9... Nfd7 $11 10. c4 (10. Be3 $142) 10... c5 (10... Nf8 $11) 11. Nc3 Na6 12. a3 Nc7 13. Be3 a6 14. Bd3 Nf8 15. Qf5 ({Better is} 15. b4 $14) 15... h6 16. Qf3 Ng6 17. Qe2 Bg5 18. b4 Bxe3 19. fxe3 b6 20. Kd2 O-O 21. Qf2 b5 22. Rhb1 {[%cal Rc4b5]} cxb4 23. axb4 bxc4 24. Bxc4 Qg5 25. Qe2 {[%cal Rc4a6]} Qh4 26. Bxa6 Nxa6 27. Rxa6 Rxa6 28. Qxa6 Qxh3 29. Qe2 Rc8 30. b5 {And now b6 would win.} Nh4 $2 (30... Nf8 $1 $11) 31. Rf1 $2 ({White has to play} 31. b6 $1 $18) 31... Rb8 $1 32. Kc2 Ng2 $1 {[%cal Rg2e3]} 33. Nd1 Ra8 $36 {[%mdl 2048] Black fights for an advantage.} 34. Kb2 {[#]} Nf4 $1 {[%mdl 512]} 35. Qf3 (35. exf4 $2 Qa3+ 36. Kc2 Qa2+ 37. Nb2 Rc8+ 38. Kd2 Qxb2+ 39. Ke1 Rc1+ 40. Kf2 Rc2 $1 $19 {[%mdl 512]}) (35. Qc4 $1 $15 Qg2+ 36. Kb1) 35... Nd3+ 36. Kb1 $2 (36. Kc3 $17 Qxf3 37. Rxf3) 36... Qxf3 $1 $19 ({Less strong is} 36... Qh2 37. Nf2 $17) 37. Rxf3 Rc8 (37... Rb8 $19 {has better winning chances.} 38. Rf1 Rxb5+ 39. Kc2 Nc5) 38. Ka2 $17 Rc1 39. Nf2 $2 {[#]} (39. Rf1 $17) 39... Ne1 $2 ({Don't do} 39... Rc2+ 40. Ka3 $19) (39... Nc5 $1 $19 {White must now prevent ...Rc4.} 40. Kb2 Rc4) 40. Rf5 $2 {[#]} (40. b6 $1 $11 Rc8 41. Rg3) 40... Rc5 $1 $19 41. g5 hxg5 {Accuracy: White = 56%, Black = 75%.} ({Not} 41... Rxb5 42. gxh6 gxh6 43. Rf6 $15) 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.9"]
[White "Dominguez, Facundo"]
[Black "Roselli Mailhe, Bernardo"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "2135"]
[BlackElo "2433"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,70,23,0,56,0,2,0,7,0,5,0,6,7,10,11,0,0,0,-28,-10,-31,-27,-26,-29,-41,-29,-20,-20,-33,-38,-23,-12,-12,-18,-34,-24,-22,-6,-3,0,-2,-5,-29,-15,-16,-14,-8,0,-149,-135,-414,-399]} 1. e4 c5 2. Nf3 e6 3. c3 Nc6 4. d4 d5 5. exd5 exd5 6. Be2 Bd6 7. dxc5 Bxc5 8. O-O Nge7 9. Nbd2 {[%cal Bb1d2,Bd2b3,Bb3d4][%mdl 32]} O-O 10. Nb3 Bb6 11. Nbd4 {[#] has lost popularity (11.Bf4).} f6 $146 {B22: Sicilian: 2 c3.} (11... Nf5 $11) ({Predecessor:} 11... Nf5 12. Bf4 h6 13. Qd2 Nd6 14. Rad1 Ne4 15. Qc1 Re8 16. Be3 Bg4 17. Rfe1 Rc8 18. Nc2 Bc7 19. c4 Bxf3 20. Bxf3 {½-½ (43) Batsanin,D (2442)-Timofeev,A (2640) Vladivostok 2012}) 12. c4 (12. Re1 $14) 12... Kh8 $11 13. cxd5 Qxd5 {[%cal Rc6d4] The position is equal.} 14. Be3 Rd8 {[%cal Rb6d4]} 15. Nxc6 Qxc6 16. Qc1 Nd5 17. Qxc6 bxc6 18. Bxb6 axb6 {[%cal Ba7b6,Bb6b5][%mdl 32]} 19. Bc4 Nf4 20. h3 b5 21. Bb3 c5 22. Rfd1 {[%cal Rd1d8] [#]} Bb7 23. Rxd8+ Rxd8 24. Rd1 Rxd1+ 25. Bxd1 $15 {[%mdl 4096] Endgame KBN-KBN} g5 26. Ne1 Kg7 27. Kf1 Kf7 28. g3 Ne6 29. Ke2 Nd4+ 30. Ke3 Ke6 31. Bh5 Kd6 32. Bg4 Bd5 33. a3 Bb3 34. Nf3 (34. Kd3 $11 {remains equal.}) 34... f5 $17 35. Bxf5 $2 {[%mdl 8192] [#]} (35. Nxg5 $17 h6 36. Ne4+ fxe4 37. Kxe4) 35... Nxf5+ {Accuracy: White = 76%, Black = 95%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.10"]
[White "Guerrero, Alvaro"]
[Black "Mussanti, Diego"]
[Result "0-1"]
[ECO "B20"]
[WhiteElo "2094"]
[BlackElo "2330"]
[Annotator "ChessBase"]
[PlyCount "120"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:01:03]} c5 {[%emt 0:00:00]} 2. d3 {[%emt 0:00:12]} Nc6 {[%emt 0:00:18]} 3. Nf3 {[%emt 0:00:14]} e6 {[%emt 0:00:59]} 4. g3 {[%emt 0:00:26]} g6 {[%emt 0:00:19]} 5. Bg2 {[%emt 0:00:14]} Bg7 {[%emt 0:00:06]} 6. h4 {[%emt 0:00:13]} h6 {[%emt 0:01:07]} 7. O-O {[%emt 0:00:19]} Nge7 {[%emt 0:01:17]} 8. c3 {[%emt 0:00:14]} O-O {[%emt 0:03:06]} 9. Be3 {[%emt 0:12:09]} b6 {[%emt 0:02:02]} 10. Qd2 {[%emt 0:00:47]} Kh7 {[%emt 0:00:35]} 11. d4 {[%emt 0:00:08]} cxd4 {[%emt 0:06:25]} 12. cxd4 {[%emt 0:03:06]} d5 {[%emt 0:00:26]} 13. e5 {[%emt 0:00:23]} Nf5 {[%emt 0:00:41]} 14. Bf4 {[%emt 0:00:54]} Ba6 {[%emt 0:08:16]} 15. Rc1 {[%emt 0:00:20]} Rc8 {[%emt 0:00:29]} 16. Na3 {[%emt 0:07:11]} Qe7 {[%emt 0:13:08]} 17. Rc3 {[%emt 0:00:59]} Nb4 {[%emt 0:02:24]} 18. Rb3 {[%emt 0:00:40]} Nc6 {[%emt 0:01:39]} 19. g4 {[%emt 0:00:59]} Nxh4 {[%emt 0:01:50]} 20. Nxh4 {[%emt 0:00:03]} Qxh4 {[%emt 0:04:04]} 21. Rh3 {[%emt 0:00:27]} Qxg4 {[%emt 0:00:27]} 22. Bxh6 {[%emt 0:00:12]} Qxh3 {[%emt 0:08:55]} 23. Bxh3 {[%emt 0:10:50]} Bxh6 {[%emt 0:00:12]} 24. Qd1 {[%emt 0:00:41]} Na5 {[%emt 0:09:50]} 25. Bf1 {[%emt 0:09:25]} Bxf1 {[%emt 0:00:25]} 26. Qxf1 {[%emt 0:00:05]} Nc4 {[%emt 0:00:21]} 27. Nxc4 {[%emt 0:02:37]} Rxc4 {[%emt 0:00:37]} 28. Rd1 {[%emt 0:00:24]} Rfc8 {[%emt 0:00:17]} 29. Kg2 {[%emt 0:00:06]} R8c7 {[%emt 0:07:03]} 30. Qd3 {[%emt 0:00:25]} Rc1 {[%emt 0:01:56]} 31. Rxc1 {[%emt 0:01:18]} Bxc1 {[%emt 0:00:34]} 32. Qa3 {[%emt 0:03:44]} Kg7 {[%emt 0:02:24]} 33. Qf3 {[%emt 0:09:48]} Bg5 {[%emt 0:01:20]} 34. Qg3 {[%emt 0:00:34]} Be7 {[%emt 0:00:19]} 35. Qd3 {[%emt 0:01:30]} Rc4 {[%emt 0:02:30]} 36. b3 {[%emt 0:01:11]} Rc7 {[%emt 0:00:09]} 37. Qb5 {[%emt 0:10:00]} Rc2 {[%emt 0:02:39]} 38. Kg3 {[%emt 0:02:59]} Rxa2 {[%emt 0:01:27]} 39. Qe8 {[%emt 0:01:15]} Bf8 {[%emt 0:00:25]} 40. f3 {[%emt 0:01:51]} a6 {[%emt 0:01:53]} 41. Qd8 {[%emt 0:03:00]} b5 {[%emt 0:00:29]} 42. Qb6 {[%emt 0:03:57]} b4 {[%emt 0:01:00]} 43. Qc6 {[%emt 0:00:29]} Rd2 {[%emt 0:00:43]} 44. Qb6 {[%emt 0:00:34]} Rd3 {[%emt 0:00:25]} 45. Kf2 {[%emt 0:01:54]} Rxb3 {[%emt 0:00:21]} 46. Qxa6 {[%emt 0:00:06]} Rc3 {[%emt 0:00:10]} 47. Qa5 {[%emt 0:00:40]} Rc4 {[%emt 0:02:01]} 48. Qb6 {[%emt 0:00:47]} Be7 {[%emt 0:00:08]} 49. Kg3 {[%emt 0:00:48]} Rc3 {[%emt 0:00:35]} 50. Qb7 {[%emt 0:01:30]} Bf8 {[%emt 0:00:10]} 51. Qa7 {[%emt 0:00:53]} b3 {[%emt 0:00:30]} 52. Qa1 {[%emt 0:00:27]} Rc4 {[%emt 0:01:03]} 53. Qb2 {[%emt 0:00:12]} Rb4 {[%emt 0:00:09]} 54. f4 {[%emt 0:03:42]} Rb8 {[%emt 0:00:19]} 55. f5 {[%emt 0:06:13]} exf5 {[%emt 0:03:17]} 56. Kf4 {[%emt 0:00:25]} Ba3 {[%emt 0:01:22]} 57. Qb1 {[%emt 0:00:24]} b2 {[%emt 0:00:09]} 58. Ke3 {[%emt 0:01:16]} Rc8 {[%emt 0:00:31]} 59. e6 {[%emt 0:01:43]} Rc1 {[%emt 0:01:00]} 60. e7 {[%emt 0:00:32]} Rxb1 {[%emt 0:00:25]} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.11"]
[White "Coppola, Claudio"]
[Black "Amura, Claudia"]
[Result "0-1"]
[ECO "E04"]
[WhiteElo "2314"]
[BlackElo "2245"]
[Annotator "TA"]
[PlyCount "102"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,102,17,25,19,14,16,34,44,59,27,27,33,27,16,37,10,19,29,54,51,59,31,41,36,41,45,43,33,106,109,91,76,74,63,47,55,81,71,72,69,419,420,425,0,0,0,0,0,0,0,2,0,0,0,0,0,0,0,0,-56,-56,-184,0,-118,-102,-278,-262,-260,-240,-222,-215,-359,-359,-368,-352,-358,-344,-308,-316,-636,-629,-806,-761,-725,-716,-825,-674,-1647,-1596,-2217,-2183,-5627,-2889]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 a6 6. O-O Nc6 7. Bg5 {E04: Open Catalan: 5 Nf3.} Be7 8. e3 Nd5 {8...0-0 gains popularity.} 9. Bxe7 {[#] White is slightly better.} Ndxe7 $146 ({Predecessor:} 9... Qxe7 10. Nfd2 b5 11. b3 cxb3 12. Nxb3 O-O 13. Qc1 Bd7 14. Nc5 Rfd8 15. Nc3 Be8 {1-0 (62) Yuffa,D (2582)-Harsha,B (2486) Riga 2019}) 10. Qe2 b5 11. b3 cxb3 12. axb3 Rb8 13. Rc1 {[%mdl 1024] White has compensation.} Rb6 14. Nc3 {[%cal Bb1c3,Bc3d1,Bd1b2][%mdl 32]} f5 15. Nd1 Qd6 16. Rc5 O-O 17. Rac1 Nd5 18. Nb2 a5 19. Nd3 Ncb4 (19... Bb7 $14) 20. Nfe5 $16 {Threatens to win with Nxb4.} Bb7 21. Nxb4 axb4 22. Bxd5 Bxd5 23. Qc2 Rb7 24. Ra1 g5 25. f3 f4 $2 {[%mdl 8192]} ({Black should try} 25... g4 $14) 26. gxf4 $18 gxf4 27. Kf2 $2 ({Only move:} 27. e4 $1 $18 {[%cal Re4d5]} Bxb3 28. Qg2+ Kh8 29. Kh1) 27... fxe3+ $11 28. Kxe3 c6 29. Rg1+ Rg7 30. Rxg7+ Kxg7 31. Qg2+ Kh8 32. Qh3 Rf6 33. Qh4 Qf8 $36 {[%mdl 2048] Black has some pressure.} 34. f4 Qg7 35. Rc1 (35. Qg3 $11) 35... Rf8 $15 {aiming for ...Qg2.} 36. Qf2 ({Better is} 36. Qg5 $15) 36... Rg8 $2 (36... Bxb3 $19 37. Nxc6 Qf6 38. Nxb4 e5 $1 {[%mdl 512]}) 37. Ra1 (37. Rg1 $1 $11 Qf8 38. Rxg8+ Kxg8 39. Qh4) 37... Qe7 $17 38. Qa2 $2 (38. Rg1 $17 {was called for.} Rxg1 39. Qxg1) 38... c5 $19 ({Weaker is} 38... Qh4 39. Nf7+ Kg7 40. Ng5 $17) 39. Qa7 Qxa7 40. Rxa7 {[%mdl 4096] Endgame [#] KRB-KRN} c4 $1 41. Nf7+ (41. bxc4 $142 bxc4 42. Rc7) 41... Kg7 42. Ne5+ Kh6 43. Nf7+ Kh5 44. Ne5 {[%cal Ra7h7]} h6 45. f5 $2 (45. Ra5 Rb8 46. Ra1 (46. bxc4 $2 b3 $19)) 45... cxb3 {Hoping for ...b2.Black is clearly winning.} 46. Nd3 exf5 47. Ra1 Be4 48. Rb1 Rc8 {Strongly threatening ...Rc3.} 49. Nf4+ Kg5 50. Rg1+ Kf6 51. Rg6+ Kf7 {Accuracy: White = 50%, Black = 81%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.12"]
[White "Lopez Azambuja, Nicolas"]
[Black "El Ters, Antouan"]
[Result "1-0"]
[ECO "C50"]
[WhiteElo "2310"]
[BlackElo "2189"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,87,36,48,37,48,39,70,20,70,72,78,81,77,79,92,77,85,94,86,66,66,62,93,89,90,70,87,91,104,85,104,88,97,73,95,44,85,80,87,83,94,83,79,64,63,42,97,97,111,80,92,106,115,83,102,87,87,82,156,150,155,71,91,84,213,138,211,211,567,572,549,530,527,510,791,771]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 d6 5. d5 Nb8 6. Bd3 Nf6 7. c4 O-O 8. Nc3 {C50: Hungarian Defence and Giuoco Pianissimo.} a5 9. a3 Nbd7 {[#]} 10. Bc2 $146 {White is slightly better.} ({Predecessor:} 10. Rb1 Nh5 11. b4 g6 12. Bh6 Ng7 13. Qc2 Nf6 14. h3 Nfh5 15. O-O f5 16. Ra1 Nf4 17. Bxf4 fxe4 18. Nxe4 Rxf4 {1-0 (18) Heberla,B (2510)-Jasik,K (2359) Karpacz 2008}) 10... b6 11. h3 Nc5 12. Be3 Bb7 13. O-O c6 14. b4 Ncd7 15. dxc6 Bxc6 16. Qe2 Qc7 17. Nd2 axb4 18. axb4 Rfc8 19. Bd3 Rxa1 20. Rxa1 Ra8 21. Qd1 Qb8 22. Nd5 Bd8 23. Nb3 Ba4 {[#] ...Nxd5 is the strong threat.} 24. Rb1 (24. Nc3 $16 Bc6 25. Nd2) 24... h6 25. Nc3 Bc6 26. Qc2 Qc8 27. Rd1 Nf8 28. Be2 Ne8 29. Bg4 Bd7 ({Black should play} 29... Qc7 $14) 30. Bxd7 $16 Nxd7 31. Nb5 Qc6 32. Qd3 Be7 33. Nd2 Nc7 34. Nc3 Nf6 35. Rb1 Ne6 (35... Qb7 $142) 36. Nd5 Bd8 37. Nf1 (37. Bxb6 $142 Nf4 38. Nxf4 Bxb6 39. Nd5 Nxd5 40. exd5 (40. cxd5 Qc7 $16)) 37... Rc8 38. Rc1 $36 {[%mdl 2048] Keeping Black busy.} Ne8 (38... Nf4 $16 {was called for.} 39. Nxf4 (39. Bxf4 exf4 40. b5 Qe8 $14) 39... exf4 40. Bxf4 Qxe4 41. Qxe4 Nxe4) 39. Ng3 Kf8 (39... Rb8 $16 40. Nf5 Qb7) 40. Nf5 $18 Bg5 $2 {[#]} (40... Qb7 41. f3 h5) 41. Bxg5 {White is clearly winning.} hxg5 42. Nfe7 Nf4 43. Qe3 Nxd5 (43... Qd7 $142 44. Nxc8 Qxc8 45. Nxb6 Qa6) 44. exd5 {Accuracy: White = 77%, Black = 58%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.13"]
[White "Contin, Daniel"]
[Black "Vazquez, Facundo"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2267"]
[BlackElo "2155"]
[Annotator "TA"]
[PlyCount "40"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,40,-7,0,-26,-12,-22,-12,0,-14,-19,-9,-45,-42,-69,-50,-78,-37,-126,-53,-93,-78,-94,-10,-25,-9,-15,19,-20,5,-12,0]} 1. Nf3 Nf6 2. c4 g6 3. b4 Bg7 4. Bb2 O-O 5. g3 c6 6. Bg2 d5 7. Na3 {A15: English Opening: 1...Nf6.} a5 8. b5 dxc4 9. bxc6 Nxc6 10. Nxc4 Be6 11. d3 b5 {[#]} 12. Ne3 $146 ({Predecessor:} 12. Nce5 Nxe5 13. Nxe5 Bd5 14. e4 Bb7 15. O-O Nd7 16. Nxd7 Qxd7 17. Bxg7 Kxg7 18. d4 {½-½ (25) Panjwani,R (2422)-Cheng,B (2442) Arlington 2013}) 12... Rc8 13. O-O h6 14. Qd2 {[#]} ({White has to play} 14. Rc1 $1 $15) 14... Qb6 ({Better is} 14... Ne4 $1 $17 {[%cal Re4d2][%mdl 512]} 15. dxe4 Qxd2 16. Nxd2 Bxb2) 15. Rfb1 Rfd8 16. Qe1 Ne8 ({Black should try} 16... Ng4 $17 17. Qd2 b4) 17. Bxg7 Nxg7 18. a3 {The position is equal.} Ne8 19. Qd2 Nd6 20. Nc2 Kh7 {Accuracy: White = 53%, Black = 57%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.14"]
[White "Michailov, Matias"]
[Black "Carvalho, Guillermo"]
[Result "1-0"]
[ECO "C88"]
[WhiteElo "2262"]
[BlackElo "2187"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,119,36,8,37,7,20,14,16,0,0,0,0,-20,0,-6,0,0,0,0,15,11,11,13,59,47,52,41,49,11,2,12,9,0,13,-86,0,0,0,-73,0,-29,-12,-68,-70,-52,-64,-62,-85,-83,-68,-137,-133,-189,-198,-188,-87,-247,-105,-330,-332,-356,-337,-501,-404,-371,-157,-248,-240,-225,-241,-248,-234,-267,-227,-258,-258,-377,-268,-379,-356,-341,-326,-500,-498,-473,-506,-463,0,0,0,0,1978,2159,1377,1299,29972,29973,29963,29952,29978,29979,29979,29980,29996,29997]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. a4 Rb8 9. d3 d6 {C88: Closed Ruy Lopez: Anti-Marshall Systems.} 10. Nbd2 {was the old line (10.axb5).} Na5 11. Ba2 b4 {The position is equal.} 12. Nf1 c5 13. Ne3 Be6 14. Bd2 Nc6 15. Bc4 {[#]} a5 $146 ({Predecessor:} 15... Bxc4 16. Nxc4 Re8 17. Bg5 Nd7 18. Nxd6 Bxg5 19. Nxe8 Be7 20. Nxg7 Kxg7 21. Nd2 Kh8 {½-½ (76) Fier,A (2653)-Khalifman,A (2612) Khanty-Mansiysk 2009}) 16. c3 Bxc4 17. Nxc4 Qc7 18. Rc1 Nd7 19. Ne3 bxc3 20. bxc3 Qb7 21. Nf5 Rfe8 22. Ng5 {aiming for Qh5!} Qb3 23. Qg4 Nf6 24. Qg3 {Strongly threatening Nxg7!} Bf8 25. Qh4 (25. Nf3 $11) 25... h6 (25... Ne7 $1 $17) 26. Nf3 $11 {[%cal Rd2h6]} Qe6 27. g4 (27. Qg3 $11 Kh8 28. Qh3) 27... Nh7 28. Qg3 Rb2 (28... d5 {is interesting.} 29. g5 hxg5 30. Bxg5 c4 31. Bh6 Qg6) 29. d4 (29. g5 $11) 29... exd4 30. cxd4 Nxd4 31. N3xd4 cxd4 32. Nxd4 Qd7 33. Bc3 ({White should try} 33. Bxa5 $15 Qxa4 34. Bc3) 33... Ra2 $17 34. Nf5 (34. h3 $17) 34... Rxa4 $19 35. f3 Rc8 (35... d5 $19 {[%cal Rd5e4]} 36. Red1 Rc4 37. exd5 (37. Rxd5 $2 Qc6 $19) 37... g6) 36. Qf2 $2 (36. Ne3 $17) 36... Qe6 (36... d5 $19 {and Black stays clearly on top. And now ...g6 would win.} 37. Qd2 Ng5) 37. Qd2 $2 (37. Nd4 $17 {was necessary.} Qd7 38. Bb2) 37... Ng5 38. Re3 Ra2 39. Bb2 (39. Rc2 {keeps fighting.} Rxc2 40. Qxc2) 39... Rb8 40. Rc2 {[#]} Qd7 (40... d5 $1 $19 {[%mdl 512] is more deadly.} 41. Bxg7 (41. Qxd5 Rbxb2) 41... Rxc2 42. Qxc2 Bxg7 43. exd5 Qf6) 41. h4 {[#]} (41. Kg2 $17) 41... Ne6 $1 42. Ra3 Rxa3 43. Bxa3 Rb1+ 44. Kh2 Qa7 {...Qg1+ is the strong threat.} 45. Qf2 Qa6 46. Rd2 (46. e5 {is a better defense.} g6 47. Ng3) 46... Rf1 47. Qg3 (47. Qg2 $142) 47... Ra1 48. Bb2 Rb1 49. Rf2 (49. Qf2 $142) 49... a4 50. g5 hxg5 51. hxg5 {Hoping for Nh6+!} a3 $2 {[#]} ({Black should play} 51... Qb5 $19 52. Ba3 g6) 52. Nh6+ $1 $11 {[%mdl 512]} gxh6 53. gxh6+ Ng7 $2 {[%mdl 8192]} ({Not} 53... Kh7 $2 54. Rg2 $18) (53... Bg7 $11 54. Bxg7 Qb5) 54. Bxg7 $18 {h7+! would kill now.} d5 55. Bxf8+ Kxf8 56. Qg7+ {White mates.} Ke7 57. h7 Qd6+ 58. e5 Qc5 59. Rg2 Qc1 60. Qf6+ {Accuracy: White = 53%, Black = 67%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.15"]
[White "Brizzi, Milagros Tatiana"]
[Black "Soto, Nicolas"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "2022"]
[BlackElo "2002"]
[Annotator "TA"]
[PlyCount "47"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,47,-23,-7,-25,0,-8,-9,-7,0,-18,0,0,16,0,13,0,11,45,173,182,166,8,617,621,631,369,624,623,1061,992,29992,29993,29993,29990]} 1. e4 e6 2. d3 d5 3. Nd2 c5 4. Ngf3 Nc6 5. g3 Bd6 6. Bg2 Nge7 7. O-O O-O 8. Nh4 f6 {8...b5 is a critical line.} 9. f4 {A08: King's Indian Attack.} d4 {[#]} 10. a3 $146 ({Predecessor:} 10. Kh1 Rb8 11. Ndf3 e5 12. Rg1 Qc7 13. f5 Kh8 14. g4 Bd7 15. g5 Ng8 16. Qe1 {1-0 (23) Stets,D (2398)-Jaksland,T (2205) Rochefort 2018}) 10... Bd7 11. Qe1 {The position is equal.} e5 12. f5 b5 13. g4 Na5 14. Rf3 c4 15. Rh3 cxd3 16. cxd3 b4 (16... Qc7 $14) 17. Nhf3 $1 $18 h6 {[#]} 18. Qh4 $1 {And now axb4 would win.} Rc8 $2 {[%mdl 8192] [#]} (18... bxa3 $11 19. b3 Kf7) 19. Nc4 $1 Nxc4 20. dxc4 {aiming for Bxh6!} Rf7 $2 {[#]} (20... Qe8 21. Bxh6 Ng6 22. fxg6 Qxg6) 21. Bxh6 $1 {[%mdl 512]} Nxf5 (21... gxh6 22. Qxh6) 22. exf5 {Intending Bxg7! and mate.} gxh6 23. Qxh6 {[%csl Gh3][%cal Rh6h8]} Rg7 {[#]} 24. Qh8+ {Played: Nf3-g5} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.16"]
[White "Vitoux, Colomban"]
[Black "Siddeley, Hugh"]
[Result "1-0"]
[ECO "E06"]
[WhiteElo "2377"]
[BlackElo "1974"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,69,48,37,55,44,66,72,71,56,70,79,101,64,79,76,87,70,76,82,81,61,57,62,62,56,62,63,68,68,57,42,42,43,56,44,52,27,39,25,25,25,33,0,33,33,33,0,339,339,770,759,737,676,870,850,771,766]} 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Nbd2 {[%cal Bb1d2,Bd2c4,Bc4e5][%mdl 32]} c5 8. Nxc4 Nc6 {[%cal Rc5d4] E05: Open Catalan: 5 Nf3 Be7.} 9. dxc5 Qxd1 10. Rxd1 Bxc5 {White is better.} 11. Nfe5 Nxe5 12. Nxe5 a5 {[#]} 13. Be3 $146 ({Predecessor:} 13. Bf4 Ra6 14. Rac1 b6 15. Nd3 Be7 16. Rc7 Nd7 17. Ne5 Nxe5 18. Rxe7 Ng6 19. Rc7 {1-0 (26) Mikenas,V-Tylor,T Hastings White Rock Pavilion 1937}) 13... Bxe3 14. fxe3 Nd5 15. Bxd5 exd5 16. Rxd5 Be6 17. Rd2 Rfd8 18. Rxd8+ Rxd8 $14 {[%mdl 4096] Endgame KRB-KRN} 19. Nf3 a4 20. a3 Rd6 21. Rc1 h6 22. Nd4 Rb6 23. Rc2 Bd5 24. Kf2 g6 25. Ke1 Kg7 26. h4 Kf6 27. Rc5 Ke5 28. Nb5 {[#] aiming for Nc3.} Ke6 29. Nc7+ Kd6 30. Nxd5 Rxb2 $2 {[%mdl 8192]} (30... Kxc5 $11 31. Nxb6 Kxb6) 31. Nc3 $18 Kxc5 $2 (31... Rb3 32. Ne4+ (32. Nxa4 b5 $16) 32... Ke6) 32. Nxa4+ {[%mdl 64] [#] Double Attack. White is clearly winning.} Kc4 33. Nxb2+ Kb3 34. Nd3 Kxa3 35. Kd2 {Accuracy: White = 79%, Black = 81%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.17"]
[White "Carbone, Diego"]
[Black "Dotta, Gian Franco"]
[Result "1/2-1/2"]
[ECO "E68"]
[WhiteElo "2239"]
[BlackElo "2000"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,62,46,33,68,67,76,40,46,44,27,12,15,3,12,3,5,6,14,43,292,282,259,231,844,416,640,-39,-37,-346,0,-22,-16,-30,-31,-22,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 h6 9. h3 Nh7 10. Be3 Ng5 11. Nxg5 hxg5 12. Rc1 exd4 {E68: King's Indian: Fianchetto: 6...Nbd7 7 0-0 e5 8 e4.} (12... a6 13. b3 exd4 14. Bxd4 Ne5 15. f4 gxf4 16. gxf4 Nc6 17. Bxg7 Kxg7 18. Nd5 Be6 19. f5 Bxd5 20. f6+ {1-0 (40) Carbone,D (2186)-Dotta,G (1862) Montevideo 2017}) 13. Bxd4 Ne5 {[#]} 14. f4 $146 ({Predecessor:} 14. b3 c5 15. Be3 a6 16. g4 Be6 17. Qd2 Bf6 18. Rcd1 Nc6 19. Ne2 Rc8 20. e5 dxe5 21. Bxc5 Qxd2 22. Rxd2 {½-½ (46) Kolev,A (2500)-Grivas,E (2505) Ankara 1993}) 14... gxf4 {White is slightly better.} 15. gxf4 c5 16. Bxe5 dxe5 17. f5 Bh6 18. Nd5 Bxc1 19. Qxc1 Qh4 20. Qc3 $1 {[%cal Rc3e5]} Kg7 $2 (20... Be6 $1 $14) 21. Qxe5+ $18 f6 22. Qd6 {Hoping for fxg6.} b6 $2 (22... gxf5 23. Rf3 (23. Qxc5 Bd7 $14) (23. exf5 Qd4+ {[%mdl 64] Double Attack} 24. Kh1 Qe5 $16) 23... Qh6) 23. Qc6 (23. fxg6 $142 {Qe7+ is the strong threat.} Bxh3 24. Bxh3 Qg5+ 25. Kh1) 23... Ba6 (23... a5 $142 24. Qxa8 Bxf5) 24. Nc7 $2 (24. fxg6 $18 {Threatening mate with Qd7+.} Bxc4 25. Qd7+ Kxg6 26. Rf4) 24... Bxc4 $15 {[%mdl 64] [#] Double Attack} 25. Qb7 $2 {[%mdl 8192]} (25. Nxa8 $15 Bxf1 26. Kxf1) 25... Rf7 $2 ({Black should try} 25... Kh6 $19 26. Ne6 Rg8 27. fxg6 Bxe6 28. Qh7+ Kg5) 26. Qxa8 Rxc7 27. Qd8 Qg3 28. Rd1 Be2 {The position is equal.} 29. Rd7+ Rxd7 30. Qxd7+ {[%mdl 64] [#] Double Attack} Kf8 31. fxg6 {[%csl Gg6][%cal Rd7f7]} Qe3+ {Accuracy: White = 56%, Black = 50%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.18"]
[White "Muniz, Rafael"]
[Black "Pinero, Ismael"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2232"]
[BlackElo "1914"]
[Annotator "RC"]
[PlyCount "85"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:01:23]} 2. Nc3 {[%emt 0:01:14]} d5 3. Bf4 {[%emt 0:01:20]} c6 {[%emt 0:03:22]} 4. Qd2 {[%emt 0:00:43]} Bf5 {[%emt 0:00:17]} 5. f3 {[%emt 0:00:30]} e6 {[%emt 0:00:31]} 6. g4 {[%emt 0:01:10]} Bg6 {[%emt 0:00:29]} 7. h4 {[%emt 0:00:19]} h5 {[%emt 0:01:48]} 8. g5 {[%emt 0:00:56]} Nh7 {[%emt 0:05:54]} 9. e3 {[%emt 0:00:52]} Bd6 {[%emt 0:00:23]} 10. Bd3 {[%emt 0:03:03]} Nf8 {[%emt 0:01:35]} 11. e4 {[%emt 0:04:45]} Qc7 {[%emt 0:04:02]} 12. Nge2 {[%emt 0:01:03]} Nbd7 {[%emt 0:04:50]} 13. O-O-O {[%emt 0:07:59]} O-O-O 14. Kb1 Kb8 {[%emt 0:09:34]} 15. Qe3 {[%emt 0:10:08]} a6 {[%emt 0:04:56]} 16. Bxd6 {[%emt 0:06:17]} Qxd6 {[%emt 0:00:07]} 17. Nf4 {[%emt 0:00:41]} Qc7 {[%emt 0:03:54]} 18. Nxg6 {[%emt 0:01:57]} Nxg6 {[%emt 0:01:39]} 19. exd5 {[%emt 0:00:25]} exd5 {[%emt 0:00:23]} 20. Bxg6 {[%emt 0:00:32]} fxg6 {[%emt 0:02:11]} 21. Qe7 {[%emt 0:04:51]} Nb6 {[%emt 0:00:17]} 22. Rhe1 {[%emt 0:03:52]} Rhe8 {[%emt 0:06:16]} 23. Qb4 {[%emt 0:03:47]} Ka8 {[%emt 0:09:58]} 24. a4 {[%emt 0:00:36]} Nc4 {[%emt 0:00:39]} 25. a5 {[%emt 0:05:57]} Nd2+ {[%emt 0:06:28]} 26. Ka2 {[%emt 0:00:43]} Nxf3 {[%emt 0:00:25]} 27. Rxe8 {[%emt 0:00:33]} Rxe8 {[%emt 0:00:13]} 28. Na4 {[%emt 0:00:31]} Nxh4 {[%emt 0:01:31]} 29. Nb6+ {[%emt 0:02:01]} Kb8 {[%emt 0:00:10]} 30. Re1 {[%emt 0:02:21]} Qf7 {[%emt 0:02:25]} 31. Qd6+ {[%emt 0:06:56]} Ka7 {[%emt 0:00:01]} 32. Nd7 {[%emt 0:02:00]} Nf5 {[%emt 0:02:14]} 33. Qc7 {[%emt 0:00:23]} h4 {[%emt 0:06:01]} 34. Qb6+ {[%emt 0:02:17]} Ka8 {[%emt 0:00:09]} 35. Ne5 {[%emt 0:00:16]} Rxe5 {[%emt 0:03:22]} 36. Qd8+ {[%emt 0:02:02]} Ka7 {[%emt 0:00:29]} 37. Rxe5 {[%emt 0:00:28]} h3 {[%emt 0:04:02]} 38. Re8 {[%emt 0:00:38]} Qxe8 39. Qxe8 h2 {[%emt 0:01:08]} 40. Qh8 {[%emt 0:00:45]} Nh6 {[%emt 0:00:40]} 41. gxh6 {[%emt 0:00:08]} h1=Q 42. hxg7 {[%emt 0:00:35]} Qf1 {[%emt 0:04:51]} 43. g8=Q {[%emt 0:00:30]} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.19"]
[White "Shtemler, Lavi"]
[Black "Durante, Aurelio"]
[Result "1/2-1/2"]
[ECO "C84"]
[WhiteElo "2199"]
[BlackElo "1955"]
[Annotator "TA"]
[PlyCount "117"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,117,16,2,2,5,10,8,29,6,8,8,27,-4,-8,0,0,-2,26,7,5,-103,-6,-34,0,9,36,14,45,46,195,180,189,190,192,166,157,114,147,36,90,37,74,26,47,-18,0,-73,-65,-26,-10,-59,127,134,143,-58,-96,-95,-85,-84,-86,-70,-91,-202,-188,-293,-288,-247,-255,-482,-297,-281,-149,-160,-165,-161,-152,-210,-192,-621,-629,-601,-606,-500,-436,-733,-672,-526,-135,-412,-192,-198,-8,-8,-8,-4,0,0,0,-5,0,0,0,-6]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 O-O 8. Re1 d6 9. a3 Na5 {C88: Closed Ruy Lopez: Anti-Marshall Systems.} 10. Ba2 c5 11. Nc3 {[#]} h6 $146 ({Predecessor:} 11... Nc6 12. h3 h6 13. Nd5 Re8 14. Nxf6+ Bxf6 15. Bd5 Bd7 16. c3 Rc8 17. b4 Be6 {1-0 (55) Shankland,S (2705)-Ding,L (2811) chess.com INT 2019}) 12. Nd5 Nxd5 13. Bxd5 Bb7 14. b4 Bxd5 15. exd5 Nb7 16. c4 Bf6 17. Ra2 Re8 18. Bd2 (18. Nd2 $11 {remains equal.}) 18... Qd7 (18... bxc4 $17 19. Qc2 cxd3 20. Qxd3 Qd7) 19. h3 Qf5 20. Qe2 Re7 21. Nh2 Rae8 22. Nf1 g5 ({Better is} 22... Qg6 $14) 23. g4 $18 Qg6 {intending ...e4.} 24. Ng3 Rc7 25. Ne4 Be7 26. Bc3 Rec8 27. Nd2 (27. Ng3 $16) 27... Bf8 ({Black should play} 27... f5 $14) 28. Rb2 (28. Qf3 $16) 28... Bg7 29. Rc1 f5 30. Kg2 (30. gxf5 $14 Qxf5 31. Qe3) 30... Rf7 31. a4 (31. Rbb1 $11 {keeps the balance.}) 31... fxg4 32. hxg4 Rcf8 (32... bxa4 $6 33. Ne4 $16) 33. Ne4 $1 Rf4 $2 (33... bxc4 $15 {keeps the upper hand.} 34. dxc4 Rf4) 34. Bd2 $1 $16 ({But not} 34. cxb5 $6 c4 $11) (34. axb5 axb5 35. Bd2 (35. cxb5 c4 $19) 35... bxc4) 34... bxc4 35. Bxf4 $2 ({White has to play} 35. Rxc4 $16 cxb4 36. Rbxb4 (36. Rcxb4 Nc5 $14)) 35... exf4 $15 36. f3 cxd3 37. Qd2 Bxb2 38. Qxb2 Qg7 39. Qxg7+ (39. Qb1 $17) 39... Kxg7 $19 40. bxc5 (40. b5 $142) 40... Nxc5 41. Nxd6 $17 {[%mdl 4096] Endgame KRN-KRN} Rd8 ({Resist} 41... Nxa4 42. Rc7+ Kf6 43. Nc4 $17) 42. Nf5+ $2 (42. Ne4 Nxa4 43. d6) 42... Kf8 43. d6 Nb3 ({Not} 43... Nxa4 44. Kf2 $17) (43... d2 $1 $19 {[%cal Rd2c1]} 44. Rd1 Nb3) 44. Rc3 d2 45. Rd3 Ke8 $1 46. Kf2 (46. Ne7 $17) 46... Kd7 $19 47. Ne7 $2 (47. Nd4 Rb8 48. Nxb3 Rxb3 49. Rxd2) 47... Ke6 $1 48. Nf5 Rd7 49. Kg2 {[#]} h5 $1 {[%mdl 512]} 50. Kf2 (50. Kh3 $142) (50. gxh5 Kxf5) 50... Ke5 51. Nh6 {[#]} h4 $2 (51... hxg4 $1 $19 {White must now prevent ...g3+.} 52. Nxg4+ Ke6) 52. Kg2 $2 {[%mdl 8192] [#]} (52. Nf5 $17 {was forced.}) 52... Ke6 (52... h3+ $142 $1 {[%mdl 512]} 53. Kh1 (53. Kxh3 Rh7) 53... Nd4 54. Rxd2 Nxf3) 53. Nf5 Rh7 $2 (53... Rb7 $19 54. Ne7 Na5 55. Rxd2 Nc4 {[%mdl 64] Double Attack}) 54. Ne7 $1 $11 {Hoping for d7.The position is equal.} Rh8 {White should prevent ...Na5.} 55. Nc6 $1 {aiming for d7.} Kd7 56. Ne5+ Ke6 57. Nc6 $1 {Threatens to win with d7.} Kd7 58. Ne5+ Ke6 59. Nc6 $1 {Accuracy: White = 47%, Black = 55%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.20"]
[White "Benoit, Rodrigo"]
[Black "Meza, Anahi"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "2170"]
[BlackElo "2046"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,50,0,11,10,14,11,18,5,22,-12,-8,-4,0,-153,-9,-12,-14,-9,37,24,35,-21,-26,-17,-15,-10,3,-25,0,-69,-68,-56,-44,-127,-130,-189,-171,-190,-185,-182,-165]} 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 4. e3 d6 5. Be2 O-O 6. O-O c5 7. c3 {A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems.} Qb6 8. Qc1 Nc6 9. Nbd2 {The position is equal.} Nh5 {[%cal Rc5d4]} 10. Bg5 h6 11. Bh4 g5 12. Ne1 $2 {[#]} (12. d5 $11) 12... gxh4 (12... cxd4 $17 13. Bxh5 dxc3 14. bxc3 gxh4) 13. Bxh5 $11 {[#]} cxd4 $146 ({Predecessor:} 13... h3 14. g3 Bf5 15. e4 Bd7 16. d5 Ne5 17. Nef3 Nxf3+ 18. Bxf3 Qd8 19. Qd1 Qc8 {1-0 (45) Parraga,A (2202)-Campero,R (2171) Sucre 2016}) 14. exd4 Be6 15. Bf3 {[#] Black must now prevent d5.} Bf5 16. Be4 (16. Nc4 $14 Qc7 17. Ne3) 16... Bxe4 17. Nxe4 f5 18. Nd2 h3 19. d5 hxg2 20. Kxg2 (20. Nxg2 $11 Ne5 21. Nf4) 20... Ne5 $36 {[%mdl 2048] Black fights for an advantage.} 21. Ndf3 Qc5 22. Nxe5 (22. Qd1 $1 $15) 22... dxe5 $17 23. c4 (23. Qd2 $17) 23... Rac8 $19 {Black is clearly better.} 24. b3 b5 25. Rb1 e4 {Accuracy: White = 56%, Black = 76%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.21"]
[White "Trois, Francisco R.T."]
[Black "Avedisian, Alexander"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "2141"]
[BlackElo "1892"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,84,7,12,1,0,5,14,35,39,41,6,6,6,6,5,10,-16,0,-4,7,-37,-40,-45,-41,-35,-30,-53,-16,-47,-14,-45,-38,-68,-7,-24,-19,-14,0,0,0,0,-8,-6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-4,0,0,0,0,0,0,3,1,11,2,11]} 1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 c5 5. e3 d6 6. c3 O-O 7. Be2 cxd4 {A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems.} 8. exd4 Nc6 9. O-O e5 10. dxe5 dxe5 11. Nc4 (11. Ne4 $5 {[%cal Rd1d8]} Qxd1 12. Nxf6+ Bxf6 13. Raxd1 $11 (13. Rfxd1 Kg7 $11)) 11... Qc7 12. Qd6 Ne8 13. Qxc7 Nxc7 {[#]} 14. a4 $146 ({Predecessor:} 14. Rfd1 Be6 15. Be3 h6 16. a4 Rfd8 17. Bc5 b6 18. Bd6 Ne8 19. Ba3 Rac8 20. Nfd2 {0-1 (47) Ning,C (2303)-Munguntuul,B (2436) China 2013}) 14... f6 15. Be3 Nd5 16. Bc5 Nf4 $36 {[%mdl 2048] Black fights for an advantage.} 17. Bd1 Rd8 18. Bb3 Be6 19. Rfd1 Nd3 20. Ba3 Bf7 21. Ne1 e4 22. Ba2 Bf8 (22... Nxe1 $15 23. Rxe1 f5) 23. Bxf8 $11 Kxf8 24. Nxd3 {The position is equal.} Rxd3 25. Rxd3 exd3 26. Ne3 Bxa2 27. Rxa2 {[%mdl 4096] Endgame KRN-KRN} f5 28. f4 Re8 29. Kf2 Re4 (29... d2 $5 30. Ra1 $8 Re4 $11) 30. g3 Na5 {[#] Hoping for ...Nb3.} (30... d2 $5 31. Ra1 $8 Na5 $11) 31. Ra1 Nb3 32. Rd1 Rxa4 33. Rxd3 Ra2 34. Nd1 $1 Nc5 35. Rd5 b6 36. Ke3 Ke7 37. Kd2 a5 38. Kc2 Ra1 39. b4 axb4 40. cxb4 Nd7 41. Kb2 Ra8 42. Nc3 Ke6 {Accuracy: White = 83%, Black = 89%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.22"]
[White "Curi, Gabriel"]
[Black "De Haro, Martim Afonso Palma"]
[Result "1-0"]
[ECO "C60"]
[WhiteElo "2132"]
[BlackElo "1788"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,74,31,25,29,20,22,9,10,11,53,31,31,-4,18,-25,71,42,72,74,113,118,180,135,231,175,210,88,96,101,105,102,102,68,149,141,161,143,145,106,262,83,498,311,471,406,645,642,745,719,720,721,799,660,897,889,889,889,1057,943,1368,1174,1232]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. O-O g6 5. c3 a6 6. Ba4 Bg7 7. d4 exd4 8. cxd4 b5 {C60: Ruy Lopez: Unusual Black 3rd moves and 3...g6.} 9. Bb3 O-O 10. Nc3 Na5 {The position is equal.} 11. Bc2 Bb7 12. Bg5 h6 13. Bh4 {[#]} Nc4 $146 ({Predecessor:} 13... d6 14. Re1 Nc4 15. Rb1 Re8 16. a4 b4 17. Ne2 c5 18. Nf4 cxd4 19. Bb3 Rc8 {1-0 (29) Sanjeev,K (2076)-Ziatdinov,R (2291) Mumbai 2017}) 14. b4 Nb6 (14... g5 $11 {keeps the balance.} 15. Bg3 d6) 15. Bb3 Qe8 16. Re1 Kh7 17. Rc1 f6 (17... Rc8 $16 {was necessary.}) 18. Qd3 Qd8 (18... d6 $16) 19. Bg3 {And now Nxb5! would win.} d6 20. Be6 (20. Ne2 $18 {and White stays clearly on top.}) 20... Bc8 $16 21. d5 Bxe6 22. dxe6 Nc4 23. a4 $36 {[%mdl 2048] White is pushing.} Nb2 (23... c6 $1 $14) 24. Qc2 Nxa4 25. Nxa4 bxa4 26. Qxc7 d5 $2 {[#]} (26... Rc8 $16 27. Qxd6 Qxd6 28. Bxd6 Rxc1 29. Rxc1 Re8) 27. exd5 $2 (27. Qb7 $1 $18 {is the precise move to win.} dxe4 28. Red1 (28. Qxe4 Qd5 $14)) 27... Nxd5 $2 {[%mdl 8192]} (27... Qxc7 $16 {is more resistant.} 28. Rxc7 Nxd5) 28. Qb7 {Played: e6-e7} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.23"]
[White "Torella, Rodolfo"]
[Black "Barandiaran, Gabriel"]
[Result "0-1"]
[ECO "C90"]
[WhiteElo "2081"]
[BlackElo "1834"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,68,8,6,18,22,59,63,114,67,56,57,62,50,70,70,71,22,18,10,13,0,37,22,34,30,41,-68,-62,-109,-124,-271,-293,-522,-506,-29982,-1035,-941,-925,-29993,-29993,-29994,-29994,-29996,-29997,-29997,-29998,-29998,-29999]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Be7 7. O-O d6 8. c3 O-O 9. Re1 Na5 10. Bc2 c5 11. Nbd2 Nc6 12. Nf1 Ne8 {C90: Closed Ruy Lopez with 7...d6: Early deviations.} 13. Ne3 g6 14. Nd5 Be6 (14... Nc7 $14) 15. Nxe7+ Qxe7 16. Bh6 Ng7 {[#]} 17. h3 $146 (17. a4 {feels hotter.} b4 18. h3 bxc3 19. bxc3 Rfc8 20. Rc1) ({Predecessor:} 17. Qd2 Rab8 18. Ng5 Bd7 19. f4 f6 20. Nf3 Nd8 21. fxe5 fxe5 22. Bg5 Qe8 23. Bxd8 Qxd8 {½-½ (42) Piechota,J-Blaszczak,C Sopot 1946}) 17... f6 18. d4 {Hoping for d5.} Nd8 19. dxc5 dxc5 20. Be3 Nf7 21. Qb1 b4 22. cxb4 cxb4 23. Nd2 f5 24. f4 (24. exf5 $14 Nxf5 25. Bb3) 24... exf4 $15 25. Bxf4 Nh5 26. exf5 (26. Bh2 $17) 26... Nxf4 $19 27. fxe6 $2 (27. Rxe6 Qg5 28. Qf1 Nxe6 {[%mdl 64] Discovered Attack} 29. fxe6 Qc5+ {[%mdl 64] Double Attack} 30. Qf2 Qxc2 31. exf7+ Rxf7 32. Qd4) 27... Ng5 28. Bb3 {[#]} (28. Kh2 $19 Nfxh3 29. Re5) 28... Ngxh3+ $1 {[%mdl 512]} 29. Kh2 (29. gxh3 Qg5+) 29... Nf2 {( -> ...Qh4+)} 30. Ne4 Qh4+ {Black mates.} 31. Kg1 Ng4 32. e7+ Kh8 33. exf8=Q+ Rxf8 34. Qc2 {[#]} Qh2+ {Played: Nf4-e2} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.24"]
[White "Suarez, Pedro"]
[Black "Martinez, Carlos Alejandro"]
[Result "1-0"]
[ECO "D80"]
[WhiteElo "2063"]
[BlackElo "2503"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,71,42,50,39,59,50,52,50,66,62,70,27,32,43,150,143,504,502,558,551,624,614,615,529,518,516,541,538,533,524,519,468,475,465,569,566,622,605,662,643,664,662,665,654,660,655,697,622,763,725,932,905,1500,1530,1792,1932,2160,2162,2038,1740]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bg5 c6 5. e3 Bg7 6. Nf3 O-O 7. Be2 Nbd7 8. O-O {D91: Grünfeld: 4 Nf3 Bg7 5 Bg5.} Re8 9. Rc1 dxc4 10. Bxc4 {White is slightly better.} Nb6 11. Bb3 Nbd5 {[#]} 12. Re1 $146 ({Predecessor:} 12. Nxd5 cxd5 13. Bf4 Bg4 14. Bc7 Qc8 15. h3 Bxf3 16. Qxf3 Qd7 17. Be5 Ne4 18. Rc7 {1-0 (57) Qendro,L (2356)-Ventura,S (2103) Condino 2010}) 12... Nxc3 13. bxc3 Qa5 (13... Ne4 $1 $14) 14. Ne5 $36 {[%mdl 2048] White is really pushing.} e6 $2 {[%mdl 8192] [#]} (14... Be6 $16) 15. Qf3 $18 {White is clearly winning.} Qd8 {Black hopes to continue with ...h6.} 16. Ng4 e5 17. Nxf6+ Bxf6 18. Qxf6 Qxf6 19. Bxf6 e4 20. Rb1 Be6 21. Bxe6 Rxe6 22. Be5 b6 23. Bg3 f5 24. h4 Rd8 25. c4 h6 26. Bf4 Kh7 27. Red1 Re7 28. a4 {[%cal Ba2a4,Ba4a5,Ba5b6][%mdl 32]} Rb7 29. Rd2 Rdd7 30. d5 c5 31. d6 h5 {[#]} 32. a5 $1 Rd8 (32... bxa5 33. Rxb7) 33. Rd5 {Played: Rd2-b2} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.25"]
[White "Pichuaga, Juan Pablo"]
[Black "Alvarez Ramirez, Miguel Angel"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "2030"]
[BlackElo "2282"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,64,19,27,18,29,29,29,36,31,27,36,39,29,28,67,54,81,79,85,68,74,72,107,85,98,88,106,98,162,184,168,127,127,135,169,177,220,108,384,393,480,454,623,606,648,587,627,616,919,652,844,823,635,586,1133,1127,1102]} 1. d4 Nf6 2. Nf3 e6 3. Bf4 d6 4. e3 Be7 5. h3 Nbd7 6. Be2 {A46: 1 d4 Nf6 2 Nf3 e6: Torre, London and Colle Systems.} Nf8 7. c4 Ng6 8. Bh2 {White has an edge.} O-O {[#]} 9. Nc3 $146 ({Predecessor:} 9. O-O b6 10. Qc2 Bb7 11. Nc3 a6 12. b4 Ra7 13. e4 Qa8 14. d5 Nh5 15. Nd4 {0-1 (56) Kononov,V (2096)-Kabyzhanov,B (2042) Dresden 2015}) 9... b6 10. O-O Bb7 11. d5 exd5 12. cxd5 Nd7 13. Nd4 Bf6 14. Rc1 Bxd4 15. Qxd4 a6 16. Rfd1 Re8 17. Rd2 Nde5 18. Rdc2 c5 (18... f5 $16) 19. dxc6 $1 $18 Bxc6 20. f4 Nd7 21. Qxd6 Re6 22. Qd4 $36 {[%mdl 2048] Hoping for f5. White is on the roll.} Nh4 {[#]} 23. Bg4 (23. e4 $1 $18 {has better winning chances.}) 23... Bxg2 $2 {[%mdl 8192]} (23... f5 $16) 24. Rxg2 Nxg2 25. Kxg2 {White is clearly winning.} Rg6 26. f5 Rf6 27. Rd1 Ra7 28. Be5 Rh6 29. Bf4 g5 30. fxg6 Rxg6 31. Kh2 Qa8 {and the idea ...h5 leaves Black hopeful.} 32. Ne4 Qc6 {Accuracy: White = 80%, Black = 36%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.26"]
[White "Santiso, Daniel"]
[Black "Escofet, Jaime"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "1900"]
[BlackElo "2025"]
[Annotator "TA"]
[PlyCount "40"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,40,6,24,-12,0,-10,0,-18,8,1,0,0,25,20,17,16,52,-4,0,0,0,-11,0,0,0]} 1. Nf3 Nf6 2. d4 g6 3. Bf4 Bg7 4. Nbd2 c5 5. e3 O-O 6. c3 d6 7. Be2 b6 8. O-O Bb7 9. h3 Nbd7 10. Nh2 {A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems.} Qc7 11. Bf3 {[#]} e5 $146 ({Predecessor:} 11... Rac8 12. Bxb7 Qxb7 13. Qf3 Rc7 14. Qxb7 Rxb7 15. Nhf3 Rc8 16. Rfe1 b5 17. Rac1 Nb6 {½-½ (36) Torcal Andolz,A (1728)-Martin Barbero,R (1967) Zaragoza 2015}) 12. dxe5 dxe5 13. Bg3 Rad8 14. Qc2 Rfe8 15. Rfd1 Bxf3 16. Nhxf3 c4 17. b4 ({White should try} 17. Qa4 $14) 17... Qc6 $11 {The position is equal.} 18. a4 a6 19. Qa2 Rc8 20. Qc2 Rcd8 {Accuracy: White = 81%, Black = 81%.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.27"]
[White "Ramirez Dominguez, Agustin"]
[Black "Meskanen, Vesa"]
[Result "0-1"]
[ECO "C72"]
[WhiteElo "1894"]
[BlackElo "2019"]
[Annotator "TA"]
[PlyCount "112"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,118,25,0,0,0,0,-12,-5,-61,-23,-23,-23,-26,-22,-26,-27,-17,-9,-29,-27,-14,35,22,51,44,55,65,135,51,91,59,51,51,46,-23,-37,-50,0,0,43,54,67,-17,-18,-56,0,0,0,-46,-37,-68,-18,-48,-50,-84,-40,-44,-35,-66,-68,-214,-204,-220,-227,-282,-270,-420,-419,-425,-412,-418,-330,-463,-456,-463,-454,-441,-432,-426,-434,-778,-500,-1477,-1485,-1362,-1402,-1335,-1320,-1197,-956,-1391,-1185,-1345,-1341,-1311,-1289,-1410,-1292,-6037,-6037,-29986,-29987]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O g6 6. c3 Bg7 7. d3 Nf6 8. Nbd2 O-O 9. Re1 b5 10. Bb3 Na5 {C77: Ruy Lopez: 3...a6 4 Ba4 Nf6, unusual lines.} 11. Bc2 c5 12. Nb3 {[#]} Nc6 $146 {The position is equal.} ({Predecessor:} 12... Nxb3 13. Bxb3 Qc7 14. Qe2 h6 15. Be3 Rd8 16. a4 Bb7 17. Bd2 c4 18. Bc2 cxd3 19. Bxd3 {0-1 (65) Turner,G (2126)-Craciun,G (2180) ICCF email 2007}) 13. d4 (13. Bg5 $11) 13... c4 14. Nbd2 exd4 15. Nxd4 Nxd4 16. cxd4 Re8 17. Nf1 Ra7 18. Bg5 h6 19. Bh4 Qb6 (19... g5 $5 {[%cal Rg5h4]} 20. Bg3 Rae7 $11) 20. f3 Rae7 {With the idea ...d5.} 21. Bf2 d5 {[%cal Rd5e4]} 22. e5 Nh7 (22... Nh5 $14) 23. Qd2 ({Better is} 23. f4 $16) 23... b4 24. b3 c3 25. Qe2 Nf8 26. Red1 ({White should try} 26. f4 $14) 26... Ne6 $11 27. Be3 Bd7 28. Qf2 Kh7 29. f4 f5 30. Qh4 (30. g4 $14 Nc7 31. gxf5 Bxf5 32. Bxf5 gxf5 33. Ng3) 30... Rf7 $36 {[%mdl 2048] Black fights for an advantage.} 31. h3 Qd8 (31... Bf8 $15) 32. Qxd8 Rxd8 33. Nh2 Bf8 34. Nf3 Nc7 35. Bf2 Nb5 36. Re1 {Black must now prevent e6.} Be6 37. Be3 Na3 38. Re2 a5 {[%cal Ba6a5,Ba5a4][%mdl 32]} 39. Bc1 (39. Bd3 $15) 39... Nxc2 $19 40. Rxc2 {[#]} a4 $1 {[%mdl 512]} 41. Be3 (41. bxa4 Ra8) 41... Ra8 {aiming for ...axb3.} 42. Rcc1 (42. Rb1 $142) 42... Rfa7 {Threatens to win with ...axb3.} 43. Rab1 Bd7 44. Ne1 Bb5 45. Kf2 (45. a3 $142 axb3 46. axb4) 45... axb3 46. axb3 Ra2+ 47. Kf3 Bf1 48. Bf2 g5 49. g3 (49. Be3 $142 Be7 50. Rc2) 49... Be7 {Strongly threatening ...g4+!} 50. Be3 (50. Rc2 $142 Bxh3 51. Ke3) 50... Be2+ 51. Kf2 Bd3+ {[%mdl 64] Discovered Attack} 52. Kg1 Bxb1 53. Rxb1 Ra1 54. Rc1 Rxc1 55. Bxc1 Ra1 56. Nd3 gxf4 {Played: Ra1-b1} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.28"]
[White "Gomez Troccoli, Martin"]
[Black "Manteiga, Franco"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2004"]
[BlackElo "1703"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,77,47,6,6,7,6,-7,-8,-35,-27,-19,-25,-40,14,-116,-116,-161,-94,-62,-33,-106,-34,-25,-10,-280,76,66,63,52,102,112,81,31,89,101,110,125,109,113,175,178,178,150,145,125,131,130,245,157,557,545,652,643,645,638,684,679,670,685,677,652,1004,990,29991,29992,29995,29996]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e5 7. Nb3 Be6 {7...Be7 deserves study. B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} 8. g4 d5 9. exd5 Nxd5 {The position is equal.} 10. Ne4 {[#]} Nc6 $146 {[%mdl 128] Black has some attack.} ({Predecessor:} 10... Be7 11. Bg2 O-O 12. O-O Nd7 13. Nd6 Bxd6 14. Bxd5 Qc7 15. c4 Bxd5 16. cxd5 f5 {½-½ (60) Korbut,E (2180)-Komiagina,M Serpukhov 1999}) 11. Bg2 {[#]} h5 $1 {[%mdl 512]} 12. g5 (12. gxh5 Nf6) 12... Nb6 ({Better is} 12... Qc7 $15) 13. Qe2 (13. O-O $11 {remains equal.}) 13... Bc4 $1 $17 {[%cal Rc4e2]} 14. Qe3 {[#]} Nb4 (14... Nd5 $1 $19 {[%cal Rd5e3]} 15. Qd2 Qc7) 15. Qc3 Qc7 16. Nbd2 ({White should try} 16. Ned2 $1 $15 Rc8 17. Nxc4 Qxc4 18. Qxc4 (18. Qxe5+ $2 Be7 $17) 18... Nxc4 19. O-O) 16... Rc8 (16... Nc6 $17 {aiming for ...Bb4.} 17. b3 (17. Nxc4 $2 Bb4 $19) 17... Be6) 17. Nxc4 $15 Qxc4 18. Qxe5+ $2 {[%mdl 8192] [#]} (18. Qxc4 $11 {and White has nothing to worry.} Nxc4 19. O-O) 18... Qe6 $2 (18... Kd8 $1 $19 19. Nd2 (19. Nd6 $2 Nxc2+ {[%mdl 64] Double Attack} 20. Kd1 Qd3+ {[%mdl 64] Double Attack} 21. Bd2 Bxd6 $19) 19... Nxc2+ {[%mdl 64] Double Attack} 20. Kd1 Qa4) 19. Qxe6+ $16 fxe6 20. O-O Nxc2 21. Rb1 Be7 22. Bf4 Nb4 (22... O-O $14 23. Bd6 Nd5) 23. Nd6+ Bxd6 24. Bxd6 N4d5 25. Rfe1 Kd7 (25... Kf7 $16) 26. Be5 $18 Rhg8 27. g6 Nc4 28. Bd4 Nd6 29. Rbd1 Ne8 (29... Nf5 $16) 30. h4 Nef6 $2 (30... Rc6 $16 31. Be5 Kc8) 31. Bh3 Rce8 32. Bxf6 gxf6 33. Rxd5+ $1 {[%mdl 64] Double Attack} Kc6 34. Rxh5 Rxg6+ 35. Kh2 e5 36. Rh7 {Black must now prevent Bd7+.} Rd8 37. Bg2+ Kb6 38. Rxb7+ Ka5 39. Re3 {Accuracy: White = 60%, Black = 37%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.30"]
[White "Montanu, Dan-Vladimir"]
[Black "Moreno, Nelson"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "1983"]
[BlackElo "1656"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,87,17,37,32,30,26,29,16,56,55,58,56,58,51,63,0,25,20,6,-25,-15,-29,-23,-102,-23,-139,-133,-134,-134,-159,-146,-181,-162,-179,-191,-233,-232,-241,-225,-220,-151,-276,-290,-312,-300,-312,-308,-430,-331,-385,-214,-231,-155,-166,-19,-113,-19,-70,-70,-82,541,540,539,532,534,485,545,556,560,543,532,525,564,557,559,559,697,546,735,720]} 1. d4 Nf6 2. Nf3 e6 3. g3 c5 4. Bg2 Nc6 5. O-O Qb6 {[%cal Rc5d4]} 6. e3 {A46: 1 d4 Nf6 2 Nf3 e6: Torre, London and Colle Systems.} cxd4 7. exd4 d5 8. c3 {[#] White has an edge.} a5 $146 ({Predecessor:} 8... Be7 9. Qe2 O-O 10. Nbd2 Na5 11. b4 Nc6 12. a4 a6 13. Nb3 Bd7 14. a5 Qb5 15. Qxb5 axb5 {0-1 (81) Barsciauskas,G (1618)-Voropajevas,N (1516) Panevezys 2018}) 9. a4 Bd7 10. Re1 Be7 11. Na3 O-O 12. Nd2 (12. Nb5 $14) 12... Rfc8 (12... e5 $5) 13. Nb5 Na7 14. Bf1 Nxb5 15. axb5 Ne8 (15... Bxb5 16. Qb3 $18) 16. Nf3 (16. c4 $1 $11) 16... Nd6 (16... Bxb5 $17 17. Bh3 Nf6) 17. Bg5 (17. Bf4 $11 {keeps the balance.}) 17... Bxg5 $17 18. Nxg5 h6 19. Nh3 Bxb5 20. Rb1 Bxf1 21. Kxf1 a4 22. Nf4 a3 23. bxa3 Qa6+ 24. Kg2 Ne4 (24... Qxa3 25. Rb3) 25. Qg4 (25. Ne2 $17) 25... Rxc3 $19 26. Nh5 {[%csl Gh5][%cal Rg4g7]} g6 27. Nf4 Rc2 (27... Rxa3 28. Nxg6 Kh7 29. Ne5 $11) 28. Rf1 Kh7 29. h4 Nd2 (29... Rac8 $142 {Strongly threatening ...R8c3.} 30. Nh3 Nd2) 30. Rfc1 Rxc1 ({And not} 30... Nxb1 31. Rxc2 Qb6 32. Nd3 $11) 31. Rxc1 Nc4 ({Wrong is} 31... Qxa3 $2 32. Rc7 $1 $18 {[%mdl 512]}) ({Black should try} 31... Qd6 $19 32. Qd1 Nc4) 32. Re1 $1 $11 {[%cal Re1e6] Black must now prevent Rxe6!} Re8 ({Don't play} 32... Qxa3 $6 33. Nxe6 $1 {[%mdl 512]} Kg8 34. Nc7 $11) (32... h5 $17 33. Qg5 Qxa3) 33. Nxd5 ({Better is} 33. h5 $1 $11 g5 {[#]} 34. Nxd5 $1 {[%mdl 512]}) 33... Qc6 $1 $15 {[%cal Rc6d5][%mdl 64] Pin} 34. Qf3 Qxd5 $4 {[%mdl 8192]} (34... Kg7 $17 {stays on course.} 35. Nb4 Qxf3+ 36. Kxf3 Nxa3) 35. Qxd5 $18 {White is clearly winning.} exd5 36. Rxe8 Nxa3 $17 {[%mdl 4096] Endgame KR-KN} 37. Rd8 b5 38. Rxd5 b4 {next ...b3 is good for Black.} 39. Rd7 Kg7 40. Kf3 Nc4 41. Rb7 b3 42. Ke2 Na5 43. Rb5 Nc6 44. Kd3 {Accuracy: White = 57%, Black = 45%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.31"]
[White "Bon, Charles"]
[Black "Aguilar Samper, Valentin"]
[Result "0-1"]
[ECO "B76"]
[WhiteElo "1614"]
[BlackElo "1946"]
[Annotator "TA"]
[PlyCount "40"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 29,56,-18,-10,-135,-128,-126,-131,-130,-141,-598,-597,-1091,-759,-697,-518,-478,-324,-982,-978,-1473,-1465,-1355,-1345,-29988,-29980,-29973,-29974,-5922,-5739]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. O-O-O d5 10. Nxc6 bxc6 11. exd5 Nxd5 12. Nxd5 cxd5 13. Qxd5 Qc7 14. Qc5 Qb7 15. Bd4 Bf5 $1 16. Qb5 {B76: Sicilian Dragon: Yugoslav Attack, 9 g4 and 9 0-0-0.} (16. Bd3 $11 {remains equal.} Rfc8 17. Qa3) 16... Qc7 $17 {[%csl Gf5][%cal Rc7c2][%mdl 1024] Black has strong compensation.} 17. Qc5 {[#]} Qf4+ $1 18. Be3 {[#]Black is clearly better.} ({Wrong is} 18. Kb1 $2 Rfc8 $19) 18... Qa4 $1 {[#]} 19. Rd2 $146 {[%mdl 8192]} (19. Bb5 $17 {is tougher.} Qxa2 20. Qa3 Qxa3 21. bxa3) ({Predecessor:} 19. g4 Rac8 20. gxf5 Rxc5 21. Bxc5 Qxa2 22. Ba3 Bh6+ 23. Rd2 Qa1# {0-1 (21) Ruiz Agudelo,J (1358)-Leon Acevedo,J (1660) Medellin 2017}) 19... Rfc8 $19 (19... Qxa2 $2 20. Qa3 $17) 20. Qd5 Bxc2 {Played: Rc8xc2} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.14"]
[Round "8.32"]
[White "Rodriguez Buela, Martin"]
[Black "Moccero, Eduardo"]
[Result "1/2-1/2"]
[ECO "D32"]
[BlackElo "1926"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,82,0,6,10,27,0,47,-18,-18,-13,-4,-20,-8,-29,-30,-34,-16,-9,-14,-29,-18,-48,0,-41,-34,-456,-444,-410,-387,-405,-354,-1160,-500,-1118,539,-488,-500,-491,-482,-482,-476,-521,-488,-451,-514,-512,-494,-468,-431,-389,-381,-454,-469,-533,-489,-617,-625,-914,-615,-608,-607,-645,-506,-579,-572,-596,-588]} 1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. e3 Nf6 7. Be2 cxd4 8. Nxd4 Bc5 9. O-O O-O 10. Bf3 {D32: Tarrasch Defence: Sidelines and lines without g3.} Bb6 {[#]} 11. b3 $146 ({Predecessor:} 11. Nxc6 bxc6 12. b3 Re8 13. Ba3 Ba6 14. Re1 Rc8 15. Rc1 h6 16. g3 Qd7 17. Na4 Ne4 18. Bxe4 Rxe4 {½-½ (44) Kalisvaart,P (2061)-Findlay,I (2194) Edmonton 2017}) 11... h6 12. Bb2 (12. Nde2 $14) 12... Nxd4 $11 13. exd4 Bf5 14. Rc1 Qd6 15. Re1 Rfe8 16. Qd2 a6 17. Na4 Bc7 18. g3 Ne4 $36 {[%mdl 2048] Black is pushing.} 19. Qd1 Ng5 {...Rxe1+ is the strong threat.} 20. Bg2 (20. Re5 $5 {[%cal Re5f5]} Nxf3+ 21. Qxf3 $11 {[%mdl 64] Double Attack}) 20... Nh3+ 21. Kf1 $2 {[%mdl 8192]} (21. Bxh3 $1 $15 Rxe1+ 22. Qxe1 Bxh3 23. Qe2) 21... Rxe1+ $19 22. Kxe1 Re8+ 23. Kf1 Qf6 {( -> ...Bd3+!)} 24. Bxh3 $2 (24. Rxc7 $2 {is a self mate.} Bd3+ $1 {[%mdl 512]} 25. Qxd3 Qxf2#) (24. Bf3 Bg4 25. Kg2) 24... Bxh3+ 25. Kg1 {[#]} Re1+ $1 {[%mdl 512]} 26. Qxe1 {[#]} Qf3 $1 {[%csl Gh3][%cal Rf3g2]} 27. Qf1 Bxf1 28. Kxf1 Ba5 29. Kg1 h5 30. Bc3 Bd8 31. Re1 Bg5 32. h4 Bf6 {aiming for ...b5.} 33. Re3 Qg4 34. Kf1 Bxd4 {Black is clearly winning.} 35. Rd3 Ba7 {And now ...Qf5! would win.} 36. Rxd5 Qf3 {[%csl Ga7][%cal Rf3f2]} 37. Rd8+ Kh7 {[%csl Ga7][%cal Rf3f2]} 38. Be1 b5 39. Nb2 Qf6 40. Rd7 Bb8 41. Rd2 Bxg3 {[%mdl 32768] Accuracy: White = 61%, Black = 87%. . An unexpected result.} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.1"]
[White "Acosta, Pablo Ismael"]
[Black "Liascovich, Lucas"]
[Result "1/2-1/2"]
[ECO "A14"]
[WhiteElo "2416"]
[BlackElo "2425"]
[Annotator "ChessBase"]
[PlyCount "39"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. c4 {[%emt 0:00:00]} e6 {[%emt 0:05:43]} 2. g3 {[%emt 0:00:00]} d5 {[%emt 0:00:37]} 3. Bg2 {[%emt 0:00:08]} Nf6 {[%emt 0:00:11]} 4. Nf3 {[%emt 0:00:32]} Be7 {[%emt 0:01:48]} 5. O-O {[%emt 0:00:17]} O-O {[%emt 0:00:20]} 6. b3 {[%emt 0:03:45]} c5 {[%emt 0:02:20]} 7. cxd5 {[%emt 0:01:04]} Nxd5 {[%emt 0:04:54]} 8. Bb2 {[%emt 0:00:50]} Nc6 {[%emt 0:00:06]} 9. d4 {[%emt 0:02:20]} cxd4 {[%emt 0:09:09]} 10. Nxd4 {[%emt 0:00:49]} Ndb4 {[%emt 0:00:35]} 11. Nxc6 {[%emt 0:02:19]} Nxc6 {[%emt 0:00:20]} 12. Nd2 {[%emt 0:07:02]} Bd7 {[%emt 0:03:08]} 13. Nc4 {[%emt 0:02:08]} Qc7 {[%emt 0:01:41]} 14. Rc1 {[%emt 0:02:02]} Rfd8 {[%emt 0:04:37]} 15. Qc2 {[%emt 0:00:30]} Rac8 {[%emt 0:05:35]} 16. Ne5 {[%emt 0:05:17]} Be8 {[%emt 0:00:30]} 17. Nxc6 {[%emt 0:01:41]} Bxc6 {[%emt 0:00:32]} 18. Bxc6 {[%emt 0:00:43]} Qxc6 {[%emt 0:01:38]} 19. Qxc6 {[%emt 0:00:12]} Rxc6 {[%emt 0:00:26]} 20. Rxc6 {[%emt 0:00:54]} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.2"]
[White "Delgado Ramirez, Neuris"]
[Black "Hungaski, Robert"]
[Result "0-1"]
[ECO "C62"]
[WhiteElo "2634"]
[BlackElo "2504"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,92,20,33,29,24,9,44,51,43,41,47,37,39,44,64,72,69,60,72,72,72,72,74,71,74,74,79,59,71,24,33,0,0,0,6,0,0,0,0,5,12,0,0,0,43,1,7,-18,0,-66,-71,-93,0,-195,-160,-142,-99,-105,-99,-164,-87,-158,-118,-142,-142,-140,-106,-154,-162,-157,-106,-175,-106,-148,-131,-159,-157,-171,-166,-258,-236,-665,-604,-12838,-8533]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Bd7 5. c4 Nf6 6. Nc3 {C62: Ruy Lopez: Steinitz Defence.} Be7 7. d4 O-O 8. Bxc6 {White is slightly better.} Bxc6 9. Re1 exd4 10. Nxd4 Nd7 {[#]} 11. Nd5 $146 ({Predecessor:} 11. Be3 Bf6 12. Qc2 Ne5 13. Qe2 Bd7 14. Rad1 Nc6 15. Qd2 Re8 16. Nde2 Bxc3 17. Nxc3 {½-½ (29) Azarov,S (2625)-Huebner,R (2605) Ohrid 2009}) 11... Bxd5 12. cxd5 Bf6 13. Be3 Re8 14. f3 a5 15. Rc1 Nc5 16. Qd2 g6 17. b3 Qd7 18. Rb1 Bg7 19. a3 c6 20. Ne2 a4 21. dxc6 Qxc6 22. bxa4 Rxa4 23. Nd4 Bxd4 24. Bxd4 Rxa3 25. Rec1 {Strongly threatening Qg5.} Rd3 26. Qb4 b6 27. Ba1 {[%mdl 1024] Qb2 is the strong threat. White has compensation.} (27. Qc4 $5 {[%cal Rc4d3]} Rc8 28. Rxb6 Qxb6 29. Qxd3 $1 $14 {[%mdl 576] Pin}) 27... d5 28. Qb2 {[%csl Ga1][%cal Rb2h8]} f6 29. Qa2 (29. exd5 $11 Rxd5 30. Qxf6 Qxf6 31. Bxf6) 29... Qe6 $15 30. Qa7 dxe4 (30... Nd7 $17 31. e5 fxe5) 31. Re1 $2 (31. Rxb6 $11 Qd7 32. Qa2+ Qd5 33. Qxd5+ Rxd5 34. fxe4 Nxe4 35. Bxf6) 31... Rd6 {And now ...e3 would win.} 32. fxe4 Nxe4 33. Qa4 f5 34. Rb5 (34. Qb5 $17 Rd2 35. Qxb6) 34... Qf7 ({Better is} 34... Qd7 $19 {Threatens to win with ...Rd5.} 35. h3 Ree6) 35. Qa3 (35. h3 $142) 35... Rde6 36. Qb2 {[%csl Ga1][%cal Rb2h8] [#]} Nf6 $1 37. Rf1 h5 38. h3 Kh7 39. Qb3 {[#]} Qe7 ({Black should play} 39... Qc7 $1 {White must now prevent ...Re1.} 40. Bd4 Nd7) 40. Qf3 (40. Bd4 $17) 40... Re3 ({Black should try} 40... Qd6 $19 41. Bxf6 Rxf6) 41. Qf4 {intending Rxf5!} Re1 42. Rb1 Rxf1+ 43. Kxf1 Nd5 44. Qd2 (44. Qd4 {was worth a try.} Ne3+ 45. Kg1) 44... Qe4 $19 45. Qb2 $2 {[#]} (45. Rc1) 45... Nc3 $1 {[%mdl 512]} 46. Rc1 (46. Qxc3 Qxb1+) 46... Qf4+ {Accuracy: White = 55%, Black = 67%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.3"]
[White "De Dovitiis, Alejo"]
[Black "Hernandez Guerrero, Gilberto"]
[Result "0-1"]
[ECO "B49"]
[WhiteElo "2314"]
[BlackElo "2557"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 32,66,31,0,0,0,18,0,0,-17,0,-102,-89,-109,-102,-105,-86,-56,-2,-31,-42,-23,0,-14,-10,-60,-30,-16,0,-76,0,-48,679,0,0,-576,-584]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 a6 6. Be3 Qc7 7. Be2 Nf6 8. O-O Bb4 9. Na4 O-O 10. Nxc6 bxc6 11. Nb6 Rb8 12. Nxc8 Rfxc8 13. Bxa6 Rf8 14. Bd3 Bd6 15. f4 e5 16. f5 Rxb2 17. g4 Qa5 {Threatens to win with ...Bc5. B49: Sicilian: Taimanov: 5 Nc3 Qc7 6 Be3 a6 7 Be2.} 18. g5 Ne8 19. Qh5 Bc5 {[#] The position is equal.} 20. Rae1 $146 ({Predecessor:} 20. Bxc5 Qxc5+ 21. Kh1 f6 22. g6 h6 23. Qe2 d5 24. a4 Nd6 25. a5 Qd4 26. exd5 Qxd5+ {0-1 (39) Castelfranchi,C (2083)-Lava,G (2221) Rome 2007}) 20... f6 21. g6 (21. Bc4+ $11 {keeps the balance.} d5 22. Bb3) 21... h6 $17 22. Bc4+ d5 $1 {[%cal Rd5c4]} 23. Bb3 Bxe3+ 24. Rxe3 Qc5 (24... Nd6 $15 25. Qf3 Kh8 26. exd5 Qb6) 25. Qe2 $11 Nd6 26. Kh1 Kh8 27. exd5 cxd5 28. Rd3 d4 {Hoping for ...Qc8.} 29. Qg2 Rc8 (29... Qc7 $11) 30. Rh3 $17 {White wants to mate with Rxh6+!} Nc4 (30... Qc7 $17 31. Rh5 d3 $1 {[%mdl 512]}) 31. Rg1 Qc7 $2 {[%mdl 8192] [#]} (31... Kg8 $15) 32. a4 $2 ({White has to play} 32. Rxh6+ $1 $18 {[%mdl 512]} gxh6 33. g7+ Kg8 34. Qd5+ Qf7 35. Bxc4 Qxd5+ 36. Bxd5+ Kh7 37. g8=Q+ Rxg8 38. Bxg8+ Kh8 39. Bb3) 32... Rd8 $11 33. Qe4 $2 {[%mdl 8192]} (33. a5 $11 {and White has nothing to worry.} Qc8 34. Ra1) 33... Nd2 {Accuracy: White = 62%, Black = 64%.} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.4"]
[White "Tristan, Leonardo"]
[Black "Vazquez, Guillermo"]
[Result "1-0"]
[ECO "E32"]
[WhiteElo "2533"]
[BlackElo "2524"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,61,37,36,13,17,19,25,12,18,27,29,0,102,98,134,118,118,104,158,134,145,147,147,123,150,133,143,150,152,152,152,152,152,152,155,155,150,132,155,124,128,118,178,120,127,107,151,131,125,25,736,728,935,903]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 b6 5. e4 c5 6. d5 {E32: Nimzo-Indian: Classical (4 Qc2): 4...0-0.} Qe7 7. Nge2 exd5 8. exd5 {White has an edge.} O-O 9. Bd2 d6 10. f3 Nfd7 (10... Nbd7 $11 {keeps the balance.}) 11. O-O-O $16 {[#]} f5 $146 ({Predecessor:} 11... Ne5 12. Ng3 f5 13. f4 Ng4 14. Re1 Qh4 15. Bd3 g6 16. a3 Ba5 17. Re2 a6 {1-0 (28) Atalik,S (2545)-Horvath,A (2473) Mumbai 2018}) 12. Nf4 Ne5 13. Re1 Na6 (13... Qf6 $142) 14. Nd3 Qf6 15. Nxe5 dxe5 16. a3 Ba5 17. Bd3 Bd7 18. Kb1 Rae8 19. g4 Nc7 20. gxf5 Bxf5 21. d6 Bxd3 22. Qxd3 Bxc3 23. Bxc3 Ne6 {Threatening ...Nd4.} 24. Qd5 Qf7 25. Bxe5 Rd8 {[#]} (25... Nd4 $16) 26. Rhg1 ({White should try} 26. Re4 $1 $18 {Threatens to win with Rg1.} Rd7 27. f4) 26... g6 27. b4 $36 {[%mdl 2048] White is on the roll.} Qf5+ 28. Ka1 Rf7 {[#]} 29. Rg4 (29. Re4 $1 $16) 29... Nd4 $2 {[%mdl 8192]} (29... Qxf3 $11 30. Qxf3 (30. Qxe6 Rxd6 31. Qe8+ Rf8 $11) 30... Rxf3) 30. Rf4 $18 Qe6 31. Rxd4 {Accuracy: White = 85%, Black = 66%.} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.5"]
[White "Hoffman, Alejandro"]
[Black "Michailov, Matias"]
[Result "1/2-1/2"]
[ECO "A45"]
[WhiteElo "2472"]
[BlackElo "2262"]
[Annotator "ChessBase"]
[PlyCount "160"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:03:49]} Nf6 {[%emt 0:02:54]} 2. g3 {[%emt 0:00:31]} g6 {[%emt 0:03:57]} 3. Bg2 {[%emt 0:00:08]} Bg7 {[%emt 0:00:07]} 4. e4 {[%emt 0:00:13]} d6 {[%emt 0:01:56]} 5. Nc3 {[%emt 0:00:54]} O-O {[%emt 0:02:22]} 6. Nge2 {[%emt 0:00:15]} e5 {[%emt 0:05:53]} 7. h3 {[%emt 0:00:22]} c6 {[%emt 0:06:27]} 8. a4 {[%emt 0:00:33]} Qc7 {[%emt 0:01:01]} 9. O-O {[%emt 0:00:52]} a5 {[%emt 0:03:03]} 10. Be3 {[%emt 0:01:10]} Na6 {[%emt 0:01:09]} 11. f4 {[%emt 0:05:21]} exd4 {[%emt 0:03:38]} 12. Bxd4 {[%emt 0:00:34]} Nb4 {[%emt 0:02:18]} 13. g4 {[%emt 0:03:41]} Re8 {[%emt 0:16:25]} 14. Ng3 {[%emt 0:05:26]} b6 {[%emt 0:08:35]} 15. Rf2 {[%emt 0:04:02]} Ba6 {[%emt 0:08:14]} 16. g5 {[%emt 0:03:03]} Nd7 {[%emt 0:00:05]} 17. Bxg7 {[%emt 0:00:09]} Kxg7 {[%emt 0:00:04]} 18. Qd4+ {[%emt 0:00:18]} Kg8 {[%emt 0:01:22]} 19. Rd1 {[%emt 0:00:13]} Rad8 {[%emt 0:08:32]} 20. Qxd6 {[%emt 0:01:04]} Qa7 {[%emt 0:01:02]} 21. e5 {[%emt 0:02:50]} Nf8 {[%emt 0:06:31]} 22. Qxd8 {[%emt 0:01:15]} Rxd8 {[%emt 0:00:03]} 23. Rxd8 {[%emt 0:00:07]} b5 {[%emt 0:00:27]} 24. Nge4 {[%emt 0:01:33]} Kg7 {[%emt 0:02:51]} 25. Nf6 {[%emt 0:01:04]} Qe3 {[%emt 0:05:49]} 26. Ne8+ {[%emt 0:07:00]} Kg8 {[%emt 0:04:45]} 27. Ne4 {[%emt 0:00:32]} Nd5 {[%emt 0:00:48]} 28. N8f6+ {[%emt 0:03:14]} Kg7 {[%emt 0:00:14]} 29. Ne8+ {[%emt 0:05:53]} Kg8 {[%emt 0:00:04]} 30. N4f6+ {[%emt 0:00:08]} Nxf6 {[%emt 0:00:43]} 31. Nxf6+ {[%emt 0:00:28]} Kg7 {[%emt 0:00:04]} 32. Bxc6 {[%emt 0:08:01]} bxa4 {[%emt 0:01:48]} 33. Rb8 {[%emt 0:22:57]} a3 {[%emt 0:02:15]} 34. bxa3 {[%emt 0:00:15]} Qxa3 {[%emt 0:00:16]} 35. Kg2 {[%emt 0:01:29]} Qc3 {[%emt 0:00:41]} 36. Bf3 {[%emt 0:04:59]} a4 {[%emt 0:01:00]} 37. Ne8+ {[%emt 0:00:24]} Kg8 {[%emt 0:00:07]} 38. Ra8 {[%emt 0:00:15]} Bb5 {[%emt 0:00:31]} 39. Nd6 {[%emt 0:00:40]} Bd7 {[%emt 0:00:38]} 40. Ne4 {[%emt 0:00:35]} Qe3 {[%emt 0:00:33]} 41. Nf6+ {[%emt 0:02:14]} Kg7 {[%emt 0:00:01]} 42. Nxd7 {[%emt 0:00:31]} Nxd7 {[%emt 0:00:01]} 43. Rxa4 {[%emt 0:00:09]} Nc5 {[%emt 0:00:13]} 44. Rc4 {[%emt 0:00:57]} Ne6 {[%emt 0:00:05]} 45. Bg4 {[%emt 0:00:10]} Nd4 {[%emt 0:00:53]} 46. c3 {[%emt 0:02:24]} Nf5 {[%emt 0:01:23]} 47. Bxf5 {[%emt 0:00:38]} gxf5 {[%emt 0:00:01]} 48. h4 {[%emt 0:01:45]} Kg6 {[%emt 0:01:05]} 49. Rd4 {[%emt 0:03:03]} Kh5 {[%emt 0:00:39]} 50. Rfd2 {[%emt 0:00:26]} Kg4 {[%emt 0:00:18]} 51. c4 {[%emt 0:01:05]} Qg3+ {[%emt 0:00:56]} 52. Kf1 {[%emt 0:00:38]} Qf3+ {[%emt 0:00:08]} 53. Rf2 {[%emt 0:00:30]} Qh1+ {[%emt 0:00:15]} 54. Ke2 {[%emt 0:00:07]} Qc1 {[%emt 0:00:38]} 55. Kd3 {[%emt 0:01:00]} Qa3+ {[%emt 0:00:21]} 56. Ke2 {[%emt 0:00:53]} Qc1 {[%emt 0:00:29]} 57. h5 {[%emt 0:01:02]} Qb2+ {[%emt 0:00:56]} 58. Ke3 {[%emt 0:01:31]} Qc3+ {[%emt 0:00:23]} 59. Rd3 {[%emt 0:00:10]} Qe1+ {[%emt 0:00:49]} 60. Re2 {[%emt 0:00:18]} Qg1+ {[%emt 0:00:18]} 61. Kd2 {[%emt 0:00:42]} Kxf4 {[%emt 0:00:30]} 62. g6 {[%emt 0:00:32]} hxg6 {[%emt 0:00:24]} 63. hxg6 {[%emt 0:00:02]} Qxg6 {[%emt 0:00:19]} 64. Rd4+ {[%emt 0:00:06]} Kg3 {[%emt 0:00:36]} 65. Re3+ {[%emt 0:00:15]} Kf2 {[%emt 0:00:46]} 66. Rf4+ {[%emt 0:00:36]} Kg2 {[%emt 0:00:05]} 67. Ke1 {[%emt 0:02:45]} Qb6 {[%emt 0:00:50]} 68. Rf2+ {[%emt 0:00:31]} Kg1 {[%emt 0:00:03]} 69. Rg3+ {[%emt 0:00:53]} Kh1 {[%emt 0:00:02]} 70. Rh3+ {[%emt 0:01:33]} Kg1 {[%emt 0:00:02]} 71. Rg3+ {[%emt 0:00:04]} Kh1 {[%emt 0:00:04]} 72. Rd3 {[%emt 0:00:10]} Qa5+ {[%emt 0:02:28]} 73. Rdd2 {[%emt 0:01:59]} Qxe5+ {[%emt 0:00:07]} 74. Kd1 {[%emt 0:00:13]} Kg1 {[%emt 0:00:47]} 75. Rg2+ {[%emt 0:00:19]} Kh1 {[%emt 0:00:03]} 76. Rge2 {[%emt 0:00:15]} Qa1+ {[%emt 0:00:21]} 77. Kc2 {[%emt 0:00:01]} Qa2+ {[%emt 0:00:40]} 78. Kd3 {[%emt 0:00:18]} Qa3+ {[%emt 0:00:19]} 79. Kd4 {[%emt 0:00:53]} Qd6+ {[%emt 0:00:05]} 80. Kc3 {[%emt 0:00:22]} Qa3+ {[%emt 0:00:04]} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.6"]
[White "Mussanti, Diego"]
[Black "Lima, Darcy"]
[Result "1/2-1/2"]
[ECO "B00"]
[WhiteElo "2330"]
[BlackElo "2526"]
[Annotator "RC"]
[PlyCount "134"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:00:00]} b6 {[%emt 0:01:16]} 2. d4 {[%emt 0:00:21]} Bb7 {[%emt 0:00:10]} 3. Nc3 {[%emt 0:00:17]} e6 {[%emt 0:00:13]} 4. Bd3 {[%emt 0:00:34]} Nf6 {[%emt 0:03:45]} 5. Nge2 {[%emt 0:01:44]} c5 {[%emt 0:04:50]} 6. O-O {[%emt 0:01:44]} Nc6 {[%emt 0:09:43]} 7. d5 {[%emt 0:04:53]} Nb4 {[%emt 0:02:43]} 8. a3 {[%emt 0:14:59]} Nxd3 {[%emt 0:00:31]} 9. Qxd3 {[%emt 0:00:06]} a6 {[%emt 0:08:14]} 10. Bg5 {[%emt 0:17:04]} d6 {[%emt 0:11:39]} 11. dxe6 {[%emt 0:03:51]} fxe6 {[%emt 0:00:06]} 12. Nf4 {[%emt 0:00:31]} Qd7 {[%emt 0:09:22]} 13. Bxf6 {[%emt 0:06:53]} gxf6 {[%emt 0:00:14]} 14. Qh3 {[%emt 0:00:12]} Bc8 {[%emt 0:06:01]} 15. Rad1 {[%emt 0:09:28]} Qf7 {[%emt 0:02:45]} 16. Qf3 {[%emt 0:03:16]} Rb8 {[%emt 0:01:45]} 17. Rd3 {[%emt 0:06:23]} Be7 {[%emt 0:02:05]} 18. Nce2 {[%emt 0:03:28]} O-O {[%emt 0:01:12]} 19. Ng3 {[%emt 0:00:11]} Kh8 {[%emt 0:00:17]} 20. Qd1 {[%emt 0:02:08]} Rb7 {[%emt 0:03:21]} 21. Nfe2 {[%emt 0:02:48]} Rg8 {[%emt 0:00:39]} 22. f4 {[%emt 0:01:30]} f5 {[%emt 0:05:50]} 23. exf5 {[%emt 0:00:27]} exf5 24. Nc3 {[%emt 0:00:27]} Rg6 {[%emt 0:00:49]} 25. Nd5 {[%emt 0:00:37]} Bf8 {[%emt 0:00:04]} 26. c4 {[%emt 0:01:19]} b5 {[%emt 0:00:08]} 27. b3 {[%emt 0:00:22]} Be6 {[%emt 0:04:56]} 28. Nh5 {[%emt 0:02:22]} Bxd5 {[%emt 0:03:10]} 29. Rxd5 {[%emt 0:00:50]} bxc4 {[%emt 0:01:44]} 30. bxc4 {[%emt 0:00:08]} Rb2 {[%emt 0:00:14]} 31. Ng3 {[%emt 0:00:26]} Bg7 {[%emt 0:00:28]} 32. Kh1 {[%emt 0:03:44]} Bd4 {[%emt 0:01:24]} 33. Rxf5 {[%emt 0:01:09]} Qxc4 {[%emt 0:00:45]} 34. Rf8+ {[%emt 0:02:47]} Kg7 {[%emt 0:01:50]} 35. Rd8 {[%emt 0:00:30]} Qd5 {[%emt 0:00:51]} 36. Rd7+ {[%emt 0:01:16]} Kg8 {[%emt 0:00:17]} 37. Qf3 {[%emt 0:01:29]} Qxf3 {[%emt 0:00:16]} 38. Rxf3 {[%emt 0:01:17]} Rb1+ {[%emt 0:00:13]} 39. Nf1 {[%emt 0:00:15]} c4 {[%emt 0:01:23]} 40. f5 {[%emt 0:00:10]} Rh6 {[%emt 0:01:10]} 41. Rc7 {[%emt 0:02:15]} c3 {[%emt 0:02:02]} 42. g4 {[%emt 0:00:07]} Bc5 {[%emt 0:00:50]} 43. f6 {[%emt 0:01:38]} Rxf6 {[%emt 0:01:34]} 44. Rxf6 {[%emt 0:00:11]} c2 {[%emt 0:00:04]} 45. Rff7 {[%emt 0:01:09]} Bd4 {[%emt 0:06:46]} 46. Kg2 {[%emt 0:00:52]} c1=Q {[%emt 0:00:38]} 47. Rxc1 {[%emt 0:00:06]} Rb2+ {[%emt 0:00:17]} 48. Kh3 {[%emt 0:02:43]} Kxf7 {[%emt 0:00:11]} 49. Ng3 {[%emt 0:00:06]} Ra2 {[%emt 0:02:13]} 50. Rc6 {[%emt 0:00:31]} Rxa3 {[%emt 0:00:29]} 51. Rxd6 {[%emt 0:00:05]} Be5 {[%emt 0:00:47]} 52. Rh6 {[%emt 0:00:25]} Kg7 {[%emt 0:01:16]} 53. Rc6 {[%emt 0:00:39]} Ra2 {[%emt 0:01:06]} 54. g5 {[%emt 0:00:27]} a5 {[%emt 0:00:09]} 55. Ra6 {[%emt 0:00:25]} a4 {[%emt 0:00:11]} 56. Kg4 {[%emt 0:00:29]} a3 {[%emt 0:00:26]} 57. Nh5+ {[%emt 0:01:01]} Kf7 {[%emt 0:00:08]} 58. Kf5 {[%emt 0:00:08]} Bd4 {[%emt 0:00:12]} 59. Ke4 {[%emt 0:01:55]} Bc5 {[%emt 0:00:01]} 60. Nf4 {[%emt 0:01:31]} Rxh2 {[%emt 0:00:24]} 61. Nd3 {[%emt 0:00:10]} Re2+ {[%emt 0:01:32]} 62. Kf5 {[%emt 0:00:10]} Bf8 {[%emt 0:01:54]} 63. Ne5+ {[%emt 0:00:34]} Kg8 {[%emt 0:00:14]} 64. Ra8 {[%emt 0:00:48]} a2 {[%emt 0:00:27]} 65. Nd7 {[%emt 0:00:29]} Rf2+ {[%emt 0:00:25]} 66. Kg4 {[%emt 0:00:19]} Kg7 {[%emt 0:00:50]} 67. Nxf8 {[%emt 0:00:08]} Rxf8 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.7"]
[White "Diaz Hollemaert, Nahuel"]
[Black "Lopez Azambuja, Nicolas"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2450"]
[BlackElo "2310"]
[Annotator "ChessBase"]
[PlyCount "43"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. c4 {[%emt 0:04:49]} Nf6 {[%emt 0:00:52]} 2. g3 {[%emt 0:04:11]} e6 {[%emt 0:01:01]} 3. Bg2 {[%emt 0:00:05]} d5 {[%emt 0:00:30]} 4. Nf3 {[%emt 0:00:57]} dxc4 {[%emt 0:02:29]} 5. Qa4+ {[%emt 0:00:07]} Bd7 {[%emt 0:00:33]} 6. Qxc4 {[%emt 0:00:04]} c5 {[%emt 0:00:15]} 7. Ne5 {[%emt 0:11:12]} Qc8 {[%emt 0:03:37]} 8. b3 {[%emt 0:09:17]} Nc6 {[%emt 0:02:52]} 9. f4 {[%emt 0:11:33]} b5 {[%emt 0:17:53]} 10. Qc2 {[%emt 0:07:41]} Nxe5 {[%emt 0:04:25]} 11. fxe5 {[%emt 0:00:01]} Bc6 {[%emt 0:01:08]} 12. exf6 {[%emt 0:01:56]} Bxg2 {[%emt 0:00:08]} 13. Rg1 {[%emt 0:00:03]} Bb7 {[%emt 0:05:29]} 14. fxg7 {[%emt 0:09:24]} Bxg7 {[%emt 0:02:36]} 15. Bb2 {[%emt 0:00:04]} e5 {[%emt 0:01:22]} 16. g4 {[%emt 0:08:03]} O-O {[%emt 0:03:46]} 17. Na3 {[%emt 0:06:29]} Qc6 {[%emt 0:04:36]} 18. Rc1 {[%emt 0:00:38]} Rac8 {[%emt 0:01:48]} 19. Qf5 {[%emt 0:00:31]} Rcd8 {[%emt 0:08:01]} 20. Qf2 {[%emt 0:04:47]} Qd6 {[%emt 0:13:29]} 21. Nb1 {[%emt 0:08:28]} Rc8 {[%emt 0:03:56]} 22. Rg3 {[%emt 0:01:29]} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.8"]
[White "Roselli Mailhe, Bernardo"]
[Black "Brizzi, Milagros Tatiana"]
[Result "1-0"]
[ECO "D12"]
[WhiteElo "2433"]
[BlackElo "2022"]
[Annotator "ChessBase"]
[PlyCount "145"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} c6 {[%emt 0:00:00]} 3. Nf3 {[%emt 0:00:00]} Nf6 {[%emt 0:00:03]} 4. e3 {[%emt 0:00:00]} Bf5 {[%emt 0:00:33]} 5. Nc3 {[%emt 0:00:02]} e6 {[%emt 0:00:10]} 6. Nh4 {[%emt 0:00:09]} Bg6 {[%emt 0:00:17]} 7. Nxg6 {[%emt 0:00:54]} hxg6 {[%emt 0:00:05]} 8. Bd2 {[%emt 0:00:43]} Nbd7 {[%emt 0:03:35]} 9. cxd5 {[%emt 0:05:13]} exd5 {[%emt 0:00:27]} 10. Qc2 {[%emt 0:00:08]} Be7 {[%emt 0:00:44]} 11. Bd3 {[%emt 0:06:31]} Qc7 {[%emt 0:03:22]} 12. h3 {[%emt 0:00:17]} Rc8 {[%emt 0:02:35]} 13. O-O-O {[%emt 0:06:44]} c5 {[%emt 0:12:23]} 14. Kb1 {[%emt 0:15:29]} a6 {[%emt 0:02:59]} 15. g4 {[%emt 0:05:08]} c4 {[%emt 0:02:53]} 16. Be2 {[%emt 0:09:00]} Qc6 {[%emt 0:01:24]} 17. Bf3 {[%emt 0:07:02]} Nb6 {[%emt 0:16:42]} 18. g5 {[%emt 0:02:13]} Nh5 {[%emt 0:02:22]} 19. Rhg1 {[%emt 0:06:25]} Rd8 {[%emt 0:03:31]} 20. Rde1 {[%emt 0:03:24]} Kf8 {[%emt 0:06:30]} 21. Qd1 {[%emt 0:11:50]} Qc7 {[%emt 0:04:48]} 22. a3 {[%emt 0:03:57]} Qd7 {[%emt 0:05:05]} 23. Bg4 {[%emt 0:00:43]} Qe8 {[%emt 0:01:14]} 24. f4 {[%emt 0:00:15]} f5 {[%emt 0:01:17]} 25. gxf6 {[%emt 0:05:08]} gxf6 {[%emt 0:00:41]} 26. f5 {[%emt 0:00:55]} Ng7 {[%emt 0:01:45]} 27. fxg6 {[%emt 0:03:09]} Qxg6+ {[%emt 0:00:17]} 28. Ka2 {[%emt 0:00:19]} Qf7 {[%emt 0:01:34]} 29. Ne2 {[%emt 0:01:33]} Nc8 {[%emt 0:00:47]} 30. Bxc8 {[%emt 0:01:32]} Rxc8 {[%emt 0:00:06]} 31. Nf4 {[%emt 0:00:03]} Rg8 {[%emt 0:03:14]} 32. Qf3 {[%emt 0:02:39]} Ne6 {[%emt 0:06:34]} 33. Rxg8+ {[%emt 0:01:28]} Qxg8 {[%emt 0:02:05]} 34. Qxd5 {[%emt 0:01:40]} Nxf4 {[%emt 0:00:42]} 35. Qxg8+ {[%emt 0:00:11]} Kxg8 {[%emt 0:00:05]} 36. exf4 {[%emt 0:00:04]} Kf7 {[%emt 0:00:07]} 37. f5 {[%emt 0:00:46]} Rd8 {[%emt 0:00:47]} 38. Bc3 {[%emt 0:00:38]} Rd5 {[%emt 0:00:21]} 39. Rf1 {[%emt 0:00:11]} Bf8 {[%emt 0:00:14]} 40. Kb1 {[%emt 0:00:29]} b5 {[%emt 0:02:25]} 41. Kc2 {[%emt 0:00:39]} Bh6 {[%emt 0:01:14]} 42. Rf3 {[%emt 0:00:08]} Bg5 {[%emt 0:00:26]} 43. Kd1 {[%emt 0:00:43]} a5 {[%emt 0:00:24]} 44. Bxa5 {[%emt 0:01:11]} Rxd4+ {[%emt 0:00:07]} 45. Ke2 {[%emt 0:00:08]} Re4+ {[%emt 0:00:35]} 46. Kf1 {[%emt 0:00:13]} Re5 {[%emt 0:00:52]} 47. Bc3 {[%emt 0:00:20]} Re4 {[%emt 0:00:09]} 48. Kg2 {[%emt 0:00:49]} Bh4 {[%emt 0:00:16]} 49. Rf1 {[%emt 0:00:46]} Bg5 {[%emt 0:01:49]} 50. Rd1 {[%emt 0:01:48]} Re2+ {[%emt 0:02:53]} 51. Kf3 {[%emt 0:00:06]} Re3+ {[%emt 0:00:09]} 52. Kf2 {[%emt 0:00:09]} Rxh3 {[%emt 0:05:24]} 53. Rd7+ {[%emt 0:00:05]} Ke8 {[%emt 0:00:34]} 54. Rb7 {[%emt 0:00:05]} Rd3 {[%emt 0:02:29]} 55. Rxb5 {[%emt 0:00:14]} Kd7 {[%emt 0:00:15]} 56. Rb4 {[%emt 0:02:11]} Rd5 {[%emt 0:00:15]} 57. Rxc4 {[%emt 0:00:08]} Rxf5+ {[%emt 0:00:03]} 58. Ke2 {[%emt 0:00:19]} Rb5 {[%emt 0:01:30]} 59. a4 {[%emt 0:00:49]} Rb3 {[%emt 0:01:04]} 60. Kd3 {[%emt 0:00:48]} Rb6 {[%emt 0:00:22]} 61. Bd4 {[%emt 0:00:58]} Ra6 {[%emt 0:00:51]} 62. b3 {[%emt 0:00:42]} Ke6 {[%emt 0:01:38]} 63. Rc5 {[%emt 0:00:31]} Bf4 {[%emt 0:00:55]} 64. Kc4 {[%emt 0:00:28]} Bd6 {[%emt 0:00:12]} 65. Rh5 {[%emt 0:00:31]} Ra8 {[%emt 0:00:44]} 66. a5 {[%emt 0:00:23]} Be5 {[%emt 0:02:00]} 67. Bb6 {[%emt 0:00:23]} Rc8+ {[%emt 0:00:55]} 68. Kb5 {[%emt 0:00:13]} Kd5 {[%emt 0:00:09]} 69. a6 {[%emt 0:00:22]} Ra8 {[%emt 0:00:30]} 70. a7 {[%emt 0:00:20]} Kd6 {[%emt 0:00:33]} 71. Rh1 {[%emt 0:00:20]} Kd7 {[%emt 0:00:32]} 72. Rd1+ {[%emt 0:00:09]} Ke6 {[%emt 0:00:48]} 73. Rd8 {[%emt 0:00:30] Kd5} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.9"]
[White "Amura, Claudia"]
[Black "Menna Barreto, Felipe Kubiaki"]
[Result "1/2-1/2"]
[ECO "D20"]
[WhiteElo "2245"]
[BlackElo "2395"]
[Annotator "ChessBase"]
[PlyCount "65"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:00]} 2. c4 {[%emt 0:01:21]} dxc4 {[%emt 0:00:29]} 3. e4 {[%emt 0:01:08]} Nc6 {[%emt 0:01:06]} 4. Be3 {[%emt 0:03:47]} Nf6 {[%emt 0:04:23]} 5. e5 {[%emt 0:15:16]} Nd5 {[%emt 0:05:27]} 6. Bxc4 {[%emt 0:00:10]} Bf5 {[%emt 0:11:47]} 7. Nc3 {[%emt 0:07:13]} Ncb4 {[%emt 0:05:47]} 8. Rc1 {[%emt 0:02:16]} e6 {[%emt 0:02:51]} 9. Nf3 {[%emt 0:04:47]} Be7 {[%emt 0:01:30]} 10. a3 {[%emt 0:04:07]} Nxc3 {[%emt 0:00:55]} 11. bxc3 {[%emt 0:00:05]} Nd5 {[%emt 0:00:17]} 12. Qb3 {[%emt 0:00:15]} O-O {[%emt 0:05:12]} 13. O-O {[%emt 0:00:13]} Rb8 {[%emt 0:02:08]} 14. Rfd1 {[%emt 0:03:11]} c6 {[%emt 0:03:04]} 15. Bd3 {[%emt 0:00:45]} Bxd3 {[%emt 0:12:22]} 16. Rxd3 {[%emt 0:00:06]} b5 {[%emt 0:01:38]} 17. Nd2 {[%emt 0:08:07]} Qa5 {[%emt 0:03:24]} 18. Ne4 {[%emt 0:03:19]} Qa4 {[%emt 0:07:40]} 19. Qxa4 {[%emt 0:15:39]} bxa4 {[%emt 0:00:03]} 20. c4 {[%emt 0:00:06]} Nxe3 {[%emt 0:01:57]} 21. fxe3 {[%emt 0:01:00]} f6 {[%emt 0:03:24]} 22. exf6 {[%emt 0:00:25]} gxf6 {[%emt 0:00:17]} 23. c5 {[%emt 0:00:48]} Rfd8 {[%emt 0:01:33]} 24. Rc4 {[%emt 0:03:14]} f5 {[%emt 0:01:52]} 25. Nd6 {[%emt 0:06:05]} Rb1+ {[%emt 0:10:17]} 26. Kf2 {[%emt 0:00:16]} Rb2+ {[%emt 0:00:29]} 27. Kf3 {[%emt 0:00:33]} Bxd6 {[%emt 0:03:15]} 28. cxd6 {[%emt 0:00:05]} Rxd6 {[%emt 0:00:25]} 29. Rxa4 {[%emt 0:02:36]} e5 {[%emt 0:00:52]} 30. Rc3 {[%emt 0:01:08]} exd4 {[%emt 0:02:03]} 31. exd4 {[%emt 0:02:38]} Rd2 {[%emt 0:00:27]} 32. Rcc4 {[%emt 0:02:47]} a5 {[%emt 0:01:05]} 33. Rxa5 {[%emt 0:03:18]} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.10"]
[White "Rodriguez Vila, Andres"]
[Black "Muniz, Rafael"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2492"]
[BlackElo "2232"]
[Annotator "ChessBase"]
[PlyCount "85"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. Bf4 {[%emt 0:00:00]} d5 {[%emt 0:00:00]} 3. e3 {[%emt 0:00:19]} e6 {[%emt 0:00:28]} 4. Nc3 {[%emt 0:00:48]} a6 {[%emt 0:00:14]} 5. g4 {[%emt 0:00:09]} c5 {[%emt 0:02:39]} 6. g5 {[%emt 0:00:05]} Nfd7 {[%emt 0:05:10]} 7. Nf3 {[%emt 0:00:25]} Nc6 {[%emt 0:00:59]} 8. Bg2 {[%emt 0:00:04]} Be7 {[%emt 0:01:56]} 9. h4 {[%emt 0:00:08]} Qa5 {[%emt 0:04:06]} 10. O-O {[%emt 0:03:42]} h6 {[%emt 0:09:23]} 11. gxh6 {[%emt 0:10:21]} gxh6 {[%emt 0:00:16]} 12. e4 {[%emt 0:01:55]} cxd4 {[%emt 0:14:40]} 13. Nxd4 {[%emt 0:01:58]} Nxd4 {[%emt 0:02:01]} 14. Qxd4 {[%emt 0:00:02]} Bf6 {[%emt 0:00:14]} 15. e5 {[%emt 0:00:07]} Bg7 {[%emt 0:05:44]} 16. Rfe1 {[%emt 0:00:43]} Qc5 {[%emt 0:03:03]} 17. Qd3 {[%emt 0:02:58]} Nb6 {[%emt 0:07:15]} 18. a4 {[%emt 0:00:14]} Bd7 {[%emt 0:04:26]} 19. a5 {[%emt 0:03:45]} Nc8 {[%emt 0:01:36]} 20. Qg3 {[%emt 0:00:06]} Bf8 {[%emt 0:03:40]} 21. b4 {[%emt 0:15:44]} Qxb4 {[%emt 0:11:55]} 22. Reb1 {[%emt 0:00:33]} Qc5 {[%emt 0:01:06]} 23. Rxb7 {[%emt 0:01:33]} Ne7 {[%emt 0:02:57]} 24. Rxd7 {[%emt 0:02:23]} Kxd7 {[%emt 0:01:08]} 25. Na4 {[%emt 0:00:06]} Qxa5 {[%emt 0:01:13]} 26. Qb3 {[%emt 0:01:13]} Ke8 {[%emt 0:01:50]} 27. Rb1 {[%emt 0:14:07]} Rg8 {[%emt 0:07:05]} 28. Qb7 {[%emt 0:00:51]} Rd8 {[%emt 0:00:29]} 29. Nb6 {[%emt 0:01:18]} Qc3 {[%emt 0:02:11]} 30. Qxa6 {[%emt 0:02:08]} Bg7 {[%emt 0:01:56]} 31. Kh1 {[%emt 0:06:54]} Kf8 {[%emt 0:03:43]} 32. Nd7+ {[%emt 0:18:19]} Ke8 {[%emt 0:00:07]} 33. Nb8 {[%emt 0:00:12]} Qc4 {[%emt 0:01:01]} 34. Qa5 {[%emt 0:03:15]} Qxf4 {[%emt 0:01:05]} 35. Qb5+ {[%emt 0:02:09]} Kf8 {[%emt 0:00:30]} 36. Nd7+ {[%emt 0:00:03]} Rxd7 {[%emt 0:01:05]} 37. Qb8+ {[%emt 0:00:02]} Nc8 {[%emt 0:00:39]} 38. Qxc8+ {[%emt 0:00:02]} Ke7 {[%emt 0:00:06]} 39. Qc5+ {[%emt 0:00:02]} Ke8 {[%emt 0:00:09]} 40. Rb8+ {[%emt 0:00:03]} Rd8 {[%emt 0:00:18]} 41. Qc6+ {[%emt 0:00:03]} Ke7 {[%emt 0:00:09]} 42. Qc7+ {[%emt 0:00:02]} Rd7 {[%emt 0:00:13]} 43. Qc5+ {[%emt 0:00:02]} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.11"]
[White "Vazquez, Facundo"]
[Black "Garcia Palermo, Carlos"]
[Result "1/2-1/2"]
[ECO "E16"]
[WhiteElo "2155"]
[BlackElo "2434"]
[Annotator "ChessBase"]
[PlyCount "137"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 3. Nf3 {[%emt 0:00:02]} Bb4+ {[%emt 0:00:00]} 4. Bd2 {[%emt 0:00:04]} Qe7 {[%emt 0:00:00]} 5. g3 {[%emt 0:00:26]} Bxd2+ {[%emt 0:00:35]} 6. Qxd2 {[%emt 0:00:44]} Nc6 {[%emt 0:00:18]} 7. Nc3 {[%emt 0:02:41]} d5 {[%emt 0:00:07]} 8. cxd5 {[%emt 0:03:12]} exd5 {[%emt 0:00:05]} 9. Bg2 {[%emt 0:01:08]} O-O {[%emt 0:00:09]} 10. O-O {[%emt 0:00:18]} Bg4 {[%emt 0:00:10]} 11. Qf4 {[%emt 0:09:07]} Rfe8 {[%emt 0:07:39]} 12. Rfe1 {[%emt 0:06:39]} Rad8 {[%emt 0:00:45]} 13. Rad1 {[%emt 0:05:14]} a6 {[%emt 0:03:23]} 14. h3 {[%emt 0:10:29]} Bc8 {[%emt 0:04:36]} 15. g4 {[%emt 0:05:31]} Ne4 {[%emt 0:04:04]} 16. Nxe4 {[%emt 0:05:21]} dxe4 {[%emt 0:00:11]} 17. Ng5 {[%emt 0:01:30]} Nxd4 {[%emt 0:22:14]} 18. Rc1 {[%emt 0:01:49]} c6 {[%emt 0:03:41]} 19. Nxe4 {[%emt 0:03:11]} f5 {[%emt 0:03:50]} 20. gxf5 {[%emt 0:02:28]} Bxf5 {[%emt 0:03:25]} 21. e3 {[%emt 0:02:34]} Ne2+ {[%emt 0:00:50]} 22. Rxe2 {[%emt 0:00:06]} Bxe4 {[%emt 0:00:07]} 23. Bxe4 {[%emt 0:01:13]} Qxe4 {[%emt 0:00:08]} 24. Qxe4 {[%emt 0:00:16]} Rxe4 {[%emt 0:00:06]} 25. f3 {[%emt 0:00:16]} Rh4 {[%emt 0:03:36]} 26. Kg2 {[%emt 0:03:58]} Rd6 {[%emt 0:00:27]} 27. Rh1 {[%emt 0:00:47]} Rc4 {[%emt 0:01:06]} 28. f4 {[%emt 0:01:03]} a5 {[%emt 0:00:54]} 29. e4 {[%emt 0:01:33]} Kf7 {[%emt 0:01:43]} 30. Rf1 {[%emt 0:01:58]} Rdd4 {[%emt 0:03:37]} 31. Kf3 {[%emt 0:02:01]} a4 {[%emt 0:00:17]} 32. Rff2 {[%emt 0:02:02]} b5 {[%emt 0:00:33]} 33. f5 {[%emt 0:03:05]} c5 {[%emt 0:02:49]} 34. Kf4 {[%emt 0:03:06]} b4 {[%emt 0:00:56]} 35. b3 {[%emt 0:03:44]} axb3 {[%emt 0:04:05]} 36. axb3 {[%emt 0:00:02]} Rc3 {[%emt 0:00:10]} 37. Ra2 {[%emt 0:00:13]} Rd7 {[%emt 0:02:05]} 38. Rfc2 {[%emt 0:01:25]} Rxb3 {[%emt 0:01:08]} 39. Rxc5 {[%emt 0:00:04]} Rxh3 {[%emt 0:00:25]} 40. Rb5 {[%emt 0:00:56]} Rh4+ {[%emt 0:04:06]} 41. Ke3 {[%emt 0:01:03]} b3 {[%emt 0:01:23]} 42. Rb2 {[%emt 0:00:26]} Rh3+ {[%emt 0:06:48]} 43. Kf4 {[%emt 0:00:16]} Re7 {[%emt 0:00:22]} 44. Rb4 {[%emt 0:02:26]} h6 {[%emt 0:03:37]} 45. R2xb3 {[%emt 0:00:46]} Rh4+ {[%emt 0:00:21]} 46. Kf3 {[%emt 0:00:07]} Rexe4 {[%emt 0:00:22]} 47. Rxe4 {[%emt 0:01:05]} Rh3+ {[%emt 0:00:06]} 48. Kf4 {[%emt 0:00:13]} Rxb3 {[%emt 0:00:06]} 49. Ra4 {[%emt 0:00:20]} Rb6 {[%emt 0:01:25]} 50. Ke5 {[%emt 0:01:54]} Kg8 {[%emt 0:00:16]} 51. Kf4 {[%emt 0:01:51]} Kh7 {[%emt 0:03:14]} 52. Rc4 {[%emt 0:01:05]} Rb1 {[%emt 0:00:09]} 53. Ra4 {[%emt 0:01:39]} Rf1+ {[%emt 0:00:23]} 54. Kg4 {[%emt 0:00:22]} Rg1+ {[%emt 0:00:32]} 55. Kf4 {[%emt 0:01:15]} h5 {[%emt 0:00:40]} 56. Ra6 {[%emt 0:01:15]} Rg4+ {[%emt 0:03:58]} 57. Kf3 {[%emt 0:00:15]} Kg8 {[%emt 0:02:31]} 58. Rg6 {[%emt 0:01:57]} Rxg6 {[%emt 0:00:31]} 59. fxg6 {[%emt 0:00:01]} Kf8 {[%emt 0:00:10]} 60. Kf4 {[%emt 0:00:29]} Ke7 {[%emt 0:00:05]} 61. Kg5 {[%emt 0:00:31]} h4 {[%emt 0:00:07]} 62. Kxh4 {[%emt 0:00:12]} Kf6 {[%emt 0:00:14]} 63. Kh5 {[%emt 0:00:28]} Kf5 {[%emt 0:00:07]} 64. Kh4 {[%emt 0:00:16]} Kxg6 {[%emt 0:00:06]} 65. Kg4 {[%emt 0:00:06]} Kf6 {[%emt 0:00:04]} 66. Kf4 {[%emt 0:00:11]} g5+ {[%emt 0:00:05]} 67. Kg4 {[%emt 0:00:06]} Kg6 {[%emt 0:00:06]} 68. Kg3 {[%emt 0:00:10]} g4 {[%emt 0:00:03]} 69. Kxg4 {[%emt 0:00:04]} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.12"]
[White "Munoz Perez, Rolando"]
[Black "Vitoux, Colomban"]
[Result "1/2-1/2"]
[ECO "D91"]
[WhiteElo "2130"]
[BlackElo "2377"]
[Annotator "ChessBase"]
[PlyCount "92"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 Nf6 {[%emt 0:00:15]} 2. c4 {[%emt 0:00:00]} g6 3. Nc3 d5 {[%emt 0:00:39]} 4. Nf3 {[%emt 0:00:00]} Bg7 {[%emt 0:00:29]} 5. Bg5 {[%emt 0:00:11]} Ne4 {[%emt 0:01:19]} 6. cxd5 {[%emt 0:00:26]} Nxg5 {[%emt 0:02:18]} 7. Nxg5 {[%emt 0:00:08]} c6 {[%emt 0:00:29]} 8. Nf3 {[%emt 0:06:26]} cxd5 {[%emt 0:00:47]} 9. Qb3 {[%emt 0:00:25]} e6 {[%emt 0:01:21]} 10. e3 {[%emt 0:00:22]} Nc6 {[%emt 0:00:06]} 11. Be2 {[%emt 0:00:33]} O-O {[%emt 0:00:20]} 12. O-O {[%emt 0:00:14]} Na5 {[%emt 0:07:31]} 13. Qc2 {[%emt 0:03:11]} Bd7 {[%emt 0:04:13]} 14. Rac1 {[%emt 0:00:29]} Qe7 {[%emt 0:03:24]} 15. Bb5 {[%emt 0:06:00]} Bxb5 {[%emt 0:06:05]} 16. Nxb5 {[%emt 0:00:10]} a6 {[%emt 0:01:28]} 17. Nc3 {[%emt 0:06:19]} Rfc8 {[%emt 0:01:37]} 18. b3 {[%emt 0:01:30]} Rc6 {[%emt 0:07:01]} 19. Qb2 {[%emt 0:00:33]} Rac8 {[%emt 0:01:24]} 20. Ne2 {[%emt 0:02:12]} f6 {[%emt 0:05:15]} 21. Rfd1 {[%emt 0:02:54]} Bf8 {[%emt 0:00:58]} 22. Rxc6 {[%emt 0:00:42]} Rxc6 {[%emt 0:00:59]} 23. Rc1 {[%emt 0:00:27]} Qc7 {[%emt 0:10:26]} 24. Rxc6 {[%emt 0:06:37]} Nxc6 {[%emt 0:00:35]} 25. Qc2 {[%emt 0:02:41]} Qa5 {[%emt 0:05:54]} 26. g3 {[%emt 0:02:31]} Bb4 {[%emt 0:02:35]} 27. e4 {[%emt 0:01:50]} Kf7 {[%emt 0:08:51]} 28. Nf4 {[%emt 0:02:23]} Bd6 {[%emt 0:01:29]} 29. exd5 {[%emt 0:03:15]} exd5 {[%emt 0:00:11]} 30. Nd3 {[%emt 0:01:09]} Qb6 {[%emt 0:01:50]} 31. Qc3 {[%emt 0:00:48]} Qd8 {[%emt 0:05:16]} 32. Nc5 {[%emt 0:02:46]} Qe7 {[%emt 0:03:22]} 33. Nxa6 {[%emt 0:00:57]} Qe4 {[%emt 0:02:31]} 34. Nc5 {[%emt 0:08:56]} Bxc5 {[%emt 0:00:02]} 35. dxc5 {[%emt 0:00:15]} d4 {[%emt 0:00:32]} 36. Qc4+ {[%emt 0:00:43]} Kg7 {[%emt 0:05:03]} 37. Nd2 {[%emt 0:00:54]} Qe1+ {[%emt 0:00:12]} 38. Nf1 {[%emt 0:00:08]} Ne5 {[%emt 0:01:14]} 39. Qd5 {[%emt 0:00:30]} d3 {[%emt 0:05:38]} 40. Kg2 {[%emt 0:00:35]} Kh6 {[%emt 0:03:13]} 41. h3 {[%emt 0:01:59]} g5 {[%emt 0:00:50]} 42. a3 {[%emt 0:00:45]} Qc3 {[%emt 0:01:11]} 43. Qd6 {[%emt 0:02:22]} Kg6 {[%emt 0:00:26]} 44. Qd5 {[%emt 0:00:38]} Kh6 {[%emt 0:00:03]} 45. Qd6 {[%emt 0:00:09]} Kg6 {[%emt 0:01:03]} 46. Qd5 {[%emt 0:00:09]} Kh6 {[%emt 0:01:01]} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.13"]
[White "Contin, Daniel"]
[Black "Coppola, Claudio"]
[Result "0-1"]
[ECO "A10"]
[WhiteElo "2267"]
[BlackElo "2314"]
[Annotator "ChessBase"]
[PlyCount "106"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. c4 {[%emt 0:05:57]} b6 {[%emt 0:18:43]} 2. d4 {[%emt 0:00:43]} Bb7 {[%emt 0:00:04]} 3. Nc3 {[%emt 0:00:19]} e6 {[%emt 0:00:12]} 4. a3 {[%emt 0:00:45]} f5 {[%emt 0:00:56]} 5. d5 {[%emt 0:04:36]} Nf6 {[%emt 0:02:32]} 6. g3 {[%emt 0:04:41]} Be7 {[%emt 0:03:05]} 7. Bg2 {[%emt 0:00:02]} Na6 {[%emt 0:11:13]} 8. b4 {[%emt 0:03:08]} O-O {[%emt 0:00:19]} 9. Nh3 {[%emt 0:06:56]} exd5 {[%emt 0:04:33]} 10. Nf4 {[%emt 0:08:07]} Ne4 {[%emt 0:01:33]} 11. Ncxd5 {[%emt 0:00:17]} Bf6 {[%emt 0:00:54]} 12. Ra2 {[%emt 0:06:48]} Nc3 {[%emt 0:02:46]} 13. Nxc3 {[%emt 0:06:58]} Bxg2 {[%emt 0:00:43]} 14. Nxg2 {[%emt 0:00:04]} Bxc3+ {[%emt 0:00:07]} 15. Kf1 {[%emt 0:03:11]} Qe7 {[%emt 0:05:43]} 16. Qd3 {[%emt 0:07:16]} Be5 {[%emt 0:06:02]} 17. h4 {[%emt 0:08:09]} c6 {[%emt 0:02:23]} 18. Bf4 {[%emt 0:00:58]} Rad8 {[%emt 0:22:46]} 19. Rd2 {[%emt 0:06:07]} Nc7 {[%emt 0:01:40]} 20. Qe3 {[%emt 0:07:01]} Rfe8 {[%emt 0:00:11]} 21. Bg5 {[%emt 0:02:30]} Bf6 {[%emt 0:00:09]} 22. Qxe7 {[%emt 0:00:05]} Bxe7 {[%emt 0:00:14]} 23. Bf4 {[%emt 0:05:37]} Ne6 {[%emt 0:00:22]} 24. Ne3 {[%emt 0:00:01]} Nxf4 {[%emt 0:00:59]} 25. gxf4 {[%emt 0:00:02]} g6 {[%emt 0:00:51]} 26. Kg2 {[%emt 0:00:10]} a5 {[%emt 0:00:28]} 27. Rhd1 {[%emt 0:01:31]} axb4 {[%emt 0:01:41]} 28. axb4 {[%emt 0:00:01]} Bxb4 {[%emt 0:00:05]} 29. Rxd7 {[%emt 0:00:03]} Rxd7 {[%emt 0:00:08]} 30. Rxd7 {[%emt 0:00:01]} Bc5 {[%emt 0:00:09]} 31. Kf3 {[%emt 0:00:24]} Re4 {[%emt 0:01:08]} 32. Rd8+ {[%emt 0:00:16]} Kf7 {[%emt 0:01:05]} 33. Rd7+ {[%emt 0:00:03]} Ke6 {[%emt 0:00:08]} 34. Rxh7 {[%emt 0:00:57]} Bxe3 {[%emt 0:00:05]} 35. fxe3 {[%emt 0:00:17]} Rxc4 {[%emt 0:00:06]} 36. h5 {[%emt 0:00:42]} gxh5 {[%emt 0:00:09]} 37. Rh6+ {[%emt 0:00:13]} Kd7 {[%emt 0:01:19]} 38. Rxh5 {[%emt 0:00:25]} Ke6 {[%emt 0:01:46]} 39. Rh6+ {[%emt 0:01:04]} Kf7 {[%emt 0:00:02]} 40. Kg3 {[%emt 0:04:30]} b5 {[%emt 0:00:32]} 41. Kh4 {[%emt 0:00:01]} b4 {[%emt 0:01:05]} 42. Kg5 {[%emt 0:00:59]} Rc5 {[%emt 0:00:06]} 43. e4 {[%emt 0:01:33]} b3 {[%emt 0:01:15]} 44. exf5 {[%emt 0:00:55]} b2 {[%emt 0:00:30]} 45. Rh1 {[%emt 0:00:51]} Rc1 {[%emt 0:00:14]} 46. Rh7+ {[%emt 0:00:33]} Kg8 {[%emt 0:00:17]} 47. Ra7 {[%emt 0:02:57]} b1=Q {[%emt 0:00:56]} 48. Ra8+ {[%emt 0:00:05]} Kf7 {[%emt 0:00:07]} 49. Ra7+ {[%emt 0:00:07]} Ke8 {[%emt 0:00:02]} 50. Ra8+ {[%emt 0:00:18]} Kd7 {[%emt 0:00:07]} 51. Ra7+ {[%emt 0:00:21]} Kd6 {[%emt 0:00:16]} 52. e4 {[%emt 0:00:14]} Qxe4 {[%emt 0:00:36]} 53. Kf6 {[%emt 0:00:11]} Qd4+ {[%emt 0:00:07] Ke5+ Kxe5} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.14"]
[White "Suarez, Pedro"]
[Black "Larrea, Manuel"]
[Result "0-1"]
[ECO "E97"]
[WhiteElo "2063"]
[BlackElo "2243"]
[Annotator "ChessBase"]
[PlyCount "70"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} g6 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:00:00]} Bg7 {[%emt 0:00:02]} 4. e4 {[%emt 0:01:11]} d6 {[%emt 0:00:09]} 5. Be2 {[%emt 0:01:01]} O-O {[%emt 0:00:26]} 6. Nf3 {[%emt 0:01:00]} e5 {[%emt 0:01:00]} 7. O-O {[%emt 0:01:30]} Nc6 {[%emt 0:01:03]} 8. d5 {[%emt 0:03:34]} Ne7 {[%emt 0:00:37]} 9. b4 {[%emt 0:01:51]} c6 {[%emt 0:00:30]} 10. Ba3 {[%emt 0:15:03]} cxd5 {[%emt 0:07:37]} 11. cxd5 {[%emt 0:04:18]} Ne8 {[%emt 0:00:31]} 12. Nd2 {[%emt 0:07:45]} f5 {[%emt 0:00:22]} 13. Nc4 {[%emt 0:01:04]} fxe4 {[%emt 0:14:59]} 14. b5 {[%emt 0:09:35]} Bf5 {[%emt 0:09:28]} 15. b6 {[%emt 0:04:47]} axb6 {[%emt 0:06:28]} 16. Nb5 {[%emt 0:03:39]} Nc8 {[%emt 0:06:06]} 17. Qb3 {[%emt 0:03:34]} Rf6 {[%emt 0:03:48]} 18. Rad1 {[%emt 0:05:28]} Kh8 {[%emt 0:12:29]} 19. Bc1 {[%emt 0:11:33]} Rf7 {[%emt 0:01:13]} 20. Be3 {[%emt 0:00:50]} Nf6 {[%emt 0:01:45]} 21. Nc3 {[%emt 0:01:51]} Nd7 {[%emt 0:01:50]} 22. g4 {[%emt 0:06:15]} Qh4 {[%emt 0:02:47]} 23. gxf5 {[%emt 0:00:40]} gxf5 {[%emt 0:02:07]} 24. f4 {[%emt 0:01:50]} Bh6 {[%emt 0:03:54]} 25. Bf2 {[%emt 0:00:22]} Rg7+ {[%emt 0:04:43]} 26. Bg3 {[%emt 0:03:37]} Rxg3+ {[%emt 0:06:36]} 27. hxg3 {[%emt 0:00:05]} Qxg3+ {[%emt 0:00:07]} 28. Kh1 {[%emt 0:00:03]} Ne7 {[%emt 0:00:21]} 29. Nxe4 {[%emt 0:00:56]} Qh4+ {[%emt 0:01:12]} 30. Kg2 {[%emt 0:00:05]} fxe4 {[%emt 0:01:13]} 31. Qh3 {[%emt 0:01:14]} Rg8+ {[%emt 0:00:19]} 32. Kh2 {[%emt 0:00:06]} Bxf4+ {[%emt 0:00:12]} 33. Rxf4 {[%emt 0:00:04]} Qxf4+ {[%emt 0:00:07]} 34. Kh1 {[%emt 0:00:03]} Nf5 {[%emt 0:01:34]} 35. Rg1 {[%emt 0:01:32]} Ng3+ {[%emt 0:00:22]} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.15"]
[White "Meskanen, Vesa"]
[Black "Carbone, Diego"]
[Result "1/2-1/2"]
[ECO "D85"]
[WhiteElo "2019"]
[BlackElo "2239"]
[Annotator "ChessBase"]
[PlyCount "72"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} Nf6 2. Nf3 {[%emt 0:01:28]} g6 {[%emt 0:06:24]} 3. c4 {[%emt 0:00:08]} Bg7 {[%emt 0:00:10]} 4. Nc3 {[%emt 0:00:07]} d5 {[%emt 0:00:31]} 5. cxd5 {[%emt 0:00:12]} Nxd5 {[%emt 0:00:07]} 6. e4 {[%emt 0:00:07]} Nxc3 {[%emt 0:00:06]} 7. bxc3 {[%emt 0:00:05]} c5 {[%emt 0:00:07]} 8. Be2 {[%emt 0:03:02]} Nc6 {[%emt 0:07:06]} 9. Be3 {[%emt 0:02:44]} Qa5 {[%emt 0:00:39]} 10. O-O {[%emt 0:00:39]} Qxc3 {[%emt 0:09:59]} 11. Rc1 {[%emt 0:00:18]} Qa3 {[%emt 0:00:04]} 12. Rxc5 {[%emt 0:00:13]} O-O {[%emt 0:00:53]} 13. Qd2 Rd8 {[%emt 0:09:36]} 14. Rfc1 {[%emt 0:21:41]} Bg4 {[%emt 0:09:04]} 15. R1c3 {[%emt 0:07:33]} Qb4 {[%emt 0:02:00]} 16. Rb5 {[%emt 0:04:45]} Qd6 {[%emt 0:01:41]} 17. Rxb7 {[%emt 0:16:43]} Bxf3 {[%emt 0:03:28]} 18. Bxf3 {[%emt 0:01:09]} Nxd4 {[%emt 0:00:27]} 19. Bxd4 {[%emt 0:04:00]} Bxd4 {[%emt 0:00:07]} 20. Rcc7 {[%emt 0:01:40]} Rac8 {[%emt 0:02:34]} 21. Qc2 {[%emt 0:06:38]} Bc5 {[%emt 0:03:09]} 22. Rxc8 {[%emt 0:06:18]} Rxc8 {[%emt 0:00:15]} 23. Rb1 {[%emt 0:00:27]} Rd8 {[%emt 0:06:09]} 24. Rd1 {[%emt 0:01:15]} Bd4 {[%emt 0:00:04]} 25. g3 {[%emt 0:00:18]} h5 {[%emt 0:01:31]} 26. Kg2 {[%emt 0:05:36]} h4 {[%emt 0:08:20]} 27. Qe2 {[%emt 0:01:20]} e5 {[%emt 0:02:02]} 28. Bg4 {[%emt 0:02:11]} Rb8 {[%emt 0:01:46]} 29. Rd2 {[%emt 0:01:23]} Qe7 {[%emt 0:01:17]} 30. Rc2 {[%emt 0:04:04]} Kg7 {[%emt 0:00:29]} 31. Qf3 {[%emt 0:01:51]} Rb1 {[%emt 0:00:54]} 32. Kh3 {[%emt 0:00:32]} Rb6 {[%emt 0:03:35]} 33. gxh4 {[%emt 0:02:09]} Rf6 {[%emt 0:00:12]} 34. Qg3 {[%emt 0:00:08]} Rf4 {[%emt 0:00:57]} 35. h5 {[%emt 0:01:35]} Qf6 {[%emt 0:04:31]} 36. f3 {[%emt 0:00:22]} g5 {[%emt 0:06:20]} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.16"]
[White "Shtemler, Lavi"]
[Black "Pichuaga, Juan Pablo"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "2199"]
[BlackElo "2030"]
[Annotator "ChessBase"]
[PlyCount "97"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:07:30]} d5 {[%emt 0:01:30]} 2. exd5 {[%emt 0:00:06]} Qxd5 {[%emt 0:00:05]} 3. Nc3 {[%emt 0:00:07]} Qa5 {[%emt 0:02:21]} 4. d4 {[%emt 0:00:15]} c6 {[%emt 0:00:15]} 5. Nf3 {[%emt 0:00:07]} Nf6 {[%emt 0:00:27]} 6. Bc4 {[%emt 0:00:09]} Bg4 {[%emt 0:01:02]} 7. O-O {[%emt 0:00:30]} e6 {[%emt 0:00:15]} 8. h3 {[%emt 0:01:45]} Bh5 {[%emt 0:00:26]} 9. Bd2 {[%emt 0:02:37]} Qd8 {[%emt 0:03:28]} 10. g4 {[%emt 0:01:34]} Bg6 {[%emt 0:00:22]} 11. Qe2 {[%emt 0:01:56]} Be7 {[%emt 0:02:57]} 12. Bg5 {[%emt 0:09:35]} Nd5 {[%emt 0:11:19]} 13. Nxd5 {[%emt 0:18:34]} Bxg5 {[%emt 0:03:14]} 14. Nxg5 {[%emt 0:00:47]} cxd5 {[%emt 0:01:36]} 15. Nxe6 {[%emt 0:08:03]} fxe6 {[%emt 0:00:45]} 16. Qxe6+ {[%emt 0:00:02]} Kf8 {[%emt 0:04:26]} 17. Bxd5 {[%emt 0:00:24]} Nc6 {[%emt 0:00:26]} 18. Rae1 {[%emt 0:05:55]} Qf6 {[%emt 0:02:43]} 19. Bxc6 {[%emt 0:02:38]} bxc6 {[%emt 0:02:49]} 20. Qxf6+ {[%emt 0:03:53]} gxf6 {[%emt 0:00:09]} 21. Re6 {[%emt 0:00:03]} Rc8 {[%emt 0:01:02]} 22. Rxf6+ {[%emt 0:05:30]} Ke7 {[%emt 0:01:48]} 23. g5 {[%emt 0:01:42]} Rhf8 {[%emt 0:03:28]} 24. Re1+ {[%emt 0:03:39]} Kd7 {[%emt 0:00:19]} 25. Ree6 {[%emt 0:15:02]} Rxf6 {[%emt 0:02:29]} 26. Rxf6 {[%emt 0:00:01]} Bxc2 {[%emt 0:00:45]} 27. f4 {[%emt 0:00:39]} Rb8 {[%emt 0:01:45]} 28. b3 {[%emt 0:00:42]} Rb4 {[%emt 0:00:47]} 29. h4 {[%emt 0:04:46]} Rxd4 {[%emt 0:02:44]} 30. h5 {[%emt 0:00:16]} Bb1 {[%emt 0:03:37]} 31. Kf2 {[%emt 0:01:26]} Rd5 {[%emt 0:11:05]} 32. Rf7+ {[%emt 0:00:47]} Ke6 {[%emt 0:01:59]} 33. Rf6+ {[%emt 0:00:14]} Kd7 {[%emt 0:05:00]} 34. Ke3 {[%emt 0:02:13]} Bf5 {[%emt 0:01:18]} 35. Rf7+ {[%emt 0:00:29]} Ke6 {[%emt 0:04:12]} 36. Rxa7 {[%emt 0:00:01]} Rd3+ {[%emt 0:00:59]} 37. Ke2 {[%emt 0:00:11]} Rh3 {[%emt 0:00:44]} 38. h6 {[%emt 0:00:52]} Rh4 {[%emt 0:01:21]} 39. Ke3 {[%emt 0:00:50]} Rh3+ {[%emt 0:05:56]} 40. Ke2 {[%emt 0:00:11]} Kd5 {[%emt 0:03:23]} 41. Re7 {[%emt 0:00:39]} Kd4 {[%emt 0:00:58]} 42. Kf2 {[%emt 0:01:07]} Be4 {[%emt 0:01:08]} 43. Rd7+ {[%emt 0:00:54]} Kc5 {[%emt 0:01:06]} 44. Re7 {[%emt 0:00:29]} Kd5 {[%emt 0:00:21]} 45. Ke2 {[%emt 0:01:43]} Rh2+ {[%emt 0:05:01]} 46. Ke3 {[%emt 0:00:25]} Rh3+ {[%emt 0:00:47]} 47. Ke2 {[%emt 0:00:10]} Rh2+ {[%emt 0:01:31]} 48. Ke3 {[%emt 0:00:11]} Rh3+ {[%emt 0:00:18]} 49. Ke2 {[%emt 0:00:33]} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.17"]
[White "El Ters, Antouan"]
[Black "Montanu, Dan-Vladimir"]
[Result "1-0"]
[ECO "C52"]
[WhiteElo "2189"]
[BlackElo "1983"]
[Annotator "NA"]
[PlyCount "105"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:00:00]} e5 {[%emt 0:08:24]} 2. Nf3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:10]} 3. Bc4 {[%emt 0:00:00]} Bc5 {[%emt 0:01:10]} 4. b4 {[%emt 0:00:45]} Bxb4 {[%emt 0:02:36]} 5. c3 {[%emt 0:00:07]} Ba5 {[%emt 0:03:22]} 6. d4 {[%emt 0:00:15]} exd4 {[%emt 0:00:15]} 7. O-O {[%emt 0:00:42]} Nge7 {[%emt 0:07:42]} 8. cxd4 {[%emt 0:05:10]} d5 {[%emt 0:01:40]} 9. exd5 {[%emt 0:00:10]} Nxd5 {[%emt 0:00:24]} 10. Qb3 {[%emt 0:08:24]} Nce7 {[%emt 0:03:54]} 11. Ba3 $1 {[%emt 0:02:30]} c6 {[%emt 0:04:46]} 12. Nbd2 $11 {[%emt 0:01:34]} (12. Bxd5 $14 Qxd5 13. Qe3) 12... Bxd2 {[%emt 0:08:49]} 13. Nxd2 {[%emt 0:01:02]} b5 {[%emt 0:08:46]} 14. Bxd5 Nxd5 {[%emt 0:00:50]} 15. Rfe1+ {[%emt 0:05:36]} Be6 {[%emt 0:06:03]} 16. Bc5 {[%emt 0:02:57]} Ne7 {[%emt 0:00:30]} 17. Rxe6 {[%emt 0:01:44]} fxe6 {[%emt 0:01:08]} 18. Qxe6 Qd7 19. Re1 {[%emt 0:00:24]} O-O-O {[%emt 0:02:33]} 20. Qxe7 {[%emt 0:02:52]} Rhe8 {[%emt 0:03:01]} 21. Qxd7+ {[%emt 0:00:37]} Kxd7 {[%emt 0:00:09]} 22. Ne4 a5 {[%emt 0:10:35]} 23. f3 {[%emt 0:05:23]} Kc7 24. Rc1 {[%emt 0:01:34]} b4 {[%emt 0:02:42]} 25. Kf2 Rd5 {[%emt 0:00:46]} 26. Ke3 {[%emt 0:03:10]} Re6 {[%emt 0:05:18]} 27. Kd3 {[%emt 0:01:42]} Rf5 {[%emt 0:01:23]} 28. Rc2 {[%emt 0:00:52]} g5 {[%emt 0:00:31]} 29. h3 {[%emt 0:01:16]} h6 {[%emt 0:04:24]} 30. Rb2 {[%emt 0:01:15]} Rd5 {[%emt 0:03:01]} 31. a3 {[%emt 0:01:09]} bxa3 {[%emt 0:00:27]} 32. Rb3 {[%emt 0:02:00]} a2 {[%emt 0:03:22]} 33. Ra3 {[%emt 0:00:23]} Rd8 {[%emt 0:02:01]} 34. Rxa5 {[%emt 0:00:19]} Rb8 {[%emt 0:00:40]} 35. Rxa2 {[%emt 0:00:00]} Rb1 {[%emt 0:00:54]} 36. Ra7+ {[%emt 0:00:58]} Kb8 {[%emt 0:00:37]} 37. Rf7 {[%emt 0:02:50]} Re1 {[%emt 0:01:39]} 38. Bd6+ {[%emt 0:02:03]} Ka8 {[%emt 0:00:37]} 39. Be5 {[%emt 0:00:32]} Rd1+ {[%emt 0:00:23]} 40. Ke2 {[%emt 0:02:03]} Rc1 {[%emt 0:00:07]} 41. Kd2 {[%emt 0:01:27]} Rg1 {[%emt 0:00:08]} 42. g3 {[%emt 0:00:49]} Rg2+ {[%emt 0:00:41]} 43. Kc3 {[%emt 0:00:20]} Rg1 {[%emt 0:00:53]} 44. Nc5 {[%emt 0:00:39]} Rc1+ {[%emt 0:00:46]} 45. Kb4 {[%emt 0:00:33]} Rb1+ {[%emt 0:00:03]} 46. Ka5 {[%emt 0:05:22]} Re8 {[%emt 0:02:27]} 47. Ka6 {[%emt 0:00:50]} Ra1+ {[%emt 0:00:34]} 48. Kb6 {[%emt 0:00:55]} Rb1+ {[%emt 0:00:02]} 49. Kxc6 {[%emt 0:00:34]} Rd8 {[%emt 0:01:38]} 50. g4 {[%emt 0:05:11]} Rb2 {[%emt 0:00:36]} 51. Na4 {[%emt 0:00:22]} Rc2+ {[%emt 0:00:59]} 52. Kb6 {[%emt 0:00:39]} Rc1 {[%emt 0:00:42]} 53. Ra7# {[%emt 0:00:16]} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.18"]
[White "Carvalho, Guillermo"]
[Black "Rodriguez Farias, Eduardo"]
[Result "1-0"]
[ECO "A46"]
[WhiteElo "2187"]
[BlackElo "1963"]
[Annotator "NA"]
[PlyCount "71"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:32]} 2. Nf3 {[%emt 0:01:51]} d6 {[%emt 0:02:00]} 3. Nc3 {[%emt 0:01:20]} Nbd7 {[%emt 0:01:55]} 4. e4 {[%emt 0:00:16]} e5 {[%emt 0:00:14]} 5. Be2 {[%emt 0:01:54]} Be7 {[%emt 0:00:21]} 6. O-O {[%emt 0:00:10]} O-O {[%emt 0:00:23]} 7. h3 {[%emt 0:00:53]} c6 {[%emt 0:02:24]} 8. Re1 {[%emt 0:02:13]} Re8 {[%emt 0:03:42]} 9. Bf1 {[%emt 0:03:25]} Qc7 {[%emt 0:06:08]} 10. g3 {[%emt 0:02:35]} Bf8 {[%emt 0:06:24]} 11. Bg2 {[%emt 0:01:07]} g6 {[%emt 0:07:28]} 12. Bg5 {[%emt 0:02:03]} h6 {[%emt 0:01:21]} 13. Be3 {[%emt 0:00:19]} Bg7 {[%emt 0:00:14]} 14. Qd2 {[%emt 0:02:22]} Kh7 {[%emt 0:00:08]} 15. Rad1 {[%emt 0:00:14]} Rb8 {[%emt 0:09:19]} 16. dxe5 {[%emt 0:00:52]} dxe5 $14 {[%emt 0:06:57]} 17. Bxa7 {[%emt 0:01:00]} Ra8 {[%emt 0:00:09]} 18. Be3 {[%emt 0:00:06]} Qa5 {[%emt 0:01:36]} 19. Qc1 {[%emt 0:01:52]} Nc5 {[%emt 0:02:32]} 20. Nd2 {[%emt 0:00:39]} Be6 {[%emt 0:01:12]} 21. a3 {[%emt 0:02:42]} Na4 {[%emt 0:02:23]} 22. Nxa4 {[%emt 0:03:56]} Qxa4 {[%emt 0:01:51]} 23. Nb1 {[%emt 0:00:13]} Bf8 {[%emt 0:07:03]} 24. b3 {[%emt 0:07:48]} Qa5 {[%emt 0:02:28]} 25. Qb2 {[%emt 0:06:26]} Rad8 {[%emt 0:04:41]} 26. Bd2 {[%emt 0:02:57]} Qc7 {[%emt 0:03:28]} 27. Be3 {[%emt 0:04:37]} Bg7 {[%emt 0:04:28]} 28. Nc3 {[%emt 0:02:52]} Ng8 {[%emt 0:01:19]} 29. Na4 {[%emt 0:01:00]} Rxd1 {[%emt 0:01:38]} 30. Rxd1 {[%emt 0:00:06]} Ne7 {[%emt 0:00:09]} 31. Bb6 {[%emt 0:03:44]} Qc8 {[%emt 0:00:21]} 32. Kh2 {[%emt 0:00:12]} f5 {[%emt 0:01:20]} 33. Nc5 {[%emt 0:00:49]} f4 {[%emt 0:01:12]} 34. Rd6 {[%emt 0:02:23]} Ng8 {[%emt 0:01:56]} 35. Nxe6 {[%emt 0:00:42]} Rxe6 {[%emt 0:00:03]} 36. Rd8 {[%emt 0:00:13]} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.19"]
[White "Dotta, Gian Franco"]
[Black "Benoit, Rodrigo"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2000"]
[BlackElo "2170"]
[Annotator "ChessBase"]
[PlyCount "84"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:05:47]} g6 {[%emt 0:09:29]} 2. d4 {[%emt 0:00:08]} Bg7 {[%emt 0:00:17]} 3. Nc3 {[%emt 0:01:30]} d6 {[%emt 0:00:14]} 4. f4 {[%emt 0:00:11]} c6 {[%emt 0:00:31]} 5. Nf3 {[%emt 0:00:09]} Bg4 {[%emt 0:00:12]} 6. Be3 {[%emt 0:00:20]} e6 {[%emt 0:00:30]} 7. h3 {[%emt 0:01:36]} Bxf3 {[%emt 0:00:09]} 8. Qxf3 {[%emt 0:00:06]} Ne7 {[%emt 0:01:02]} 9. Bd3 {[%emt 0:01:46]} f5 {[%emt 0:00:41]} 10. d5 {[%emt 0:04:03]} fxe4 {[%emt 0:01:10]} 11. Nxe4 {[%emt 0:08:19]} exd5 {[%emt 0:02:49]} 12. Ng5 {[%emt 0:05:43]} Qd7 {[%emt 0:00:13]} 13. f5 {[%emt 0:14:15]} Nxf5 {[%emt 0:01:59]} 14. Bxf5 {[%emt 0:01:13]} Qxf5 {[%emt 0:00:03]} 15. O-O {[%emt 0:10:20]} Qxf3 {[%emt 0:07:05]} 16. Rxf3 {[%emt 0:00:14]} Be5 {[%emt 0:00:16]} 17. Raf1 {[%emt 0:02:31]} Na6 {[%emt 0:00:35]} 18. Ne6 {[%emt 0:05:09]} Ke7 {[%emt 0:01:32]} 19. Ng7 {[%emt 0:06:10]} Bxg7 {[%emt 0:00:56]} 20. Rf7+ {[%emt 0:00:09]} Ke6 {[%emt 0:00:23]} 21. Rxg7 {[%emt 0:00:15]} Raf8 {[%emt 0:00:35]} 22. Re1 {[%emt 0:02:33]} Rf5 {[%emt 0:00:18]} 23. Bg5+ {[%emt 0:00:24]} Re5 {[%emt 0:00:09]} 24. Rxe5+ {[%emt 0:02:50]} dxe5 {[%emt 0:00:12]} 25. Rxb7 {[%emt 0:00:30]} d4 {[%emt 0:01:54]} 26. Rxa7 {[%emt 0:04:16]} Nb4 27. c3 {[%emt 0:00:47]} Nd3 {[%emt 0:00:36]} 28. cxd4 {[%emt 0:03:12]} exd4 {[%emt 0:00:02]} 29. Re7+ {[%emt 0:01:03]} Kd6 {[%emt 0:00:59]} 30. Re4 {[%emt 0:02:41]} c5 {[%emt 0:02:10]} 31. Bf6 {[%emt 0:02:51]} Ra8 {[%emt 0:00:43]} 32. Rh4 {[%emt 0:02:17]} Nxb2 {[%emt 0:04:16]} 33. Kh2 {[%emt 0:03:57]} d3 {[%emt 0:03:08]} 34. Bc3 {[%emt 0:02:27]} Rxa2 {[%emt 0:00:40]} 35. Rxh7 {[%emt 0:00:43]} Na4 {[%emt 0:00:46]} 36. Ba5 {[%emt 0:01:04]} Nb6 {[%emt 0:03:32]} 37. Bxb6 {[%emt 0:03:58]} d2 {[%emt 0:00:10]} 38. Rh8 {[%emt 0:01:32]} Kc6 {[%emt 0:00:05]} 39. Rd8 {[%emt 0:00:50]} Kxb6 {[%emt 0:00:10]} 40. Kg3 {[%emt 0:00:10]} c4 {[%emt 0:00:10]} 41. Kf3 {[%emt 0:00:16]} c3 {[%emt 0:00:24]} 42. Ke2 {[%emt 0:01:51]} Ra1 {[%emt 0:00:17]} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.20"]
[White "Durante, Aurelio"]
[Black "Dominguez, Facundo"]
[Result "1/2-1/2"]
[ECO "B40"]
[WhiteElo "1955"]
[BlackElo "2135"]
[Annotator "NA"]
[PlyCount "89"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:57]} 2. Nf3 {[%emt 0:00:00]} e6 {[%emt 0:00:19]} 3. c3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:27]} 4. d4 {[%emt 0:07:49]} cxd4 {[%emt 0:01:02]} 5. cxd4 {[%emt 0:00:02]} d5 {[%emt 0:00:08]} 6. exd5 {[%emt 0:01:13]} exd5 {[%emt 0:03:59]} 7. Nc3 {[%emt 0:01:10]} Nf6 {[%emt 0:01:04]} 8. a3 {[%emt 0:00:21]} Be7 {[%emt 0:01:15]} 9. Be2 {[%emt 0:00:38] D40: Queen's Gambit Declined: Semi-Tarrasch with 5 e3.} O-O {[%emt 0:00:21]} 10. O-O {[%emt 0:00:03]} Bf5 {[%emt 0:02:44] [#]} 11. Bf4 $146 {[%emt 0:01:45]} ({Predecessor:} 11. Be3 Rc8 12. Rc1 Ne4 13. Nxe4 dxe4 14. Ne5 Nxe5 15. dxe5 Rxc1 16. Qxc1 Qa5 17. Bd4 {½-½ (36) Rott,G (2221)-Schiefelbusch,D (2135) Dortmund 2010}) 11... Rc8 {[%emt 0:02:54]} 12. Rc1 {[%emt 0:00:04]} Ne4 {[%emt 0:03:54]} 13. Qb3 {[%emt 0:08:49]} Na5 {[%emt 0:00:55]} 14. Qa2 {[%emt 0:01:46]} Be6 {[%emt 0:04:57]} 15. Bd3 {[%emt 0:01:30]} Nxc3 {[%emt 0:06:47]} 16. Rxc3 {[%emt 0:01:45]} Rxc3 {[%emt 0:00:09]} 17. bxc3 {[%emt 0:00:02]} Qc8 {[%emt 0:00:19]} 18. Rc1 {[%emt 0:01:37]} Rd8 {[%emt 0:10:52]} 19. Bg5 $15 {[%emt 0:08:45]} Bxg5 {[%emt 0:06:00]} 20. Nxg5 {[%emt 0:00:03]} h6 {[%emt 0:00:08]} 21. Nf3 {[%emt 0:00:16]} Rd7 {[%emt 0:04:28]} 22. Bb1 {[%emt 0:01:56]} Nc4 {[%emt 0:02:56]} 23. h4 {[%emt 0:06:56]} Rc7 {[%emt 0:03:56]} 24. Qc2 {[%emt 0:09:13]} g6 {[%emt 0:00:45]} 25. Qa2 {[%emt 0:04:21]} Bf5 {[%emt 0:06:44]} 26. a4 {[%emt 0:09:47]} Re7 {[%emt 0:05:43]} 27. Re1 {[%emt 0:05:24]} Rxe1+ {[%emt 0:00:49]} 28. Nxe1 {[%emt 0:02:05]} Bxb1 {[%emt 0:07:32]} 29. Qxb1 {[%emt 0:00:02]} Qe8 {[%emt 0:03:20]} 30. Nf3 {[%emt 0:01:28]} b6 {[%emt 0:04:13]} 31. Qc1 {[%emt 0:01:45]} Kg7 {[%emt 0:01:37]} 32. Qf4 {[%emt 0:01:38]} Qe7 {[%emt 0:07:00]} 33. g4 {[%emt 0:07:34]} Nd6 {[%emt 0:04:29]} 34. h5 {[%emt 0:07:39]} Ne4 {[%emt 0:02:29]} 35. hxg6 {[%emt 0:01:04]} fxg6 {[%emt 0:00:11]} 36. Ne5 {[%emt 0:00:50]} Nxc3 {[%emt 0:01:08]} 37. Qf3 {[%emt 0:00:26]} Ne4 {[%emt 0:00:16]} 38. Kg2 {[%emt 0:01:54]} Qf6 {[%emt 0:00:59]} 39. Qe3 {[%emt 0:01:44]} Ng5 {[%emt 0:00:52]} 40. Qb3 {[%emt 0:01:43]} Ne6 {[%emt 0:00:09]} 41. Kg1 {[%emt 0:01:12]} Nf4 {[%emt 0:00:39]} 42. Qc2 {[%emt 0:00:24]} Ne6 {[%emt 0:00:54]} 43. Qd3 {[%emt 0:03:37]} Nf4 {[%emt 0:00:34]} 44. Qc2 {[%emt 0:00:07]} Ne6 {[%emt 0:00:21]} 45. Qc6 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.21"]
[White "Aguilar Samper, Valentin"]
[Black "Curi, Gabriel"]
[Result "1/2-1/2"]
[ECO "A20"]
[WhiteElo "1946"]
[BlackElo "2132"]
[Annotator "NA"]
[PlyCount "92"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. c4 {[%emt 0:00:00]} e5 {[%emt 0:02:03]} 2. g3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:33]} 3. Bg2 {[%emt 0:00:00]} f5 {[%emt 0:00:30]} 4. Nc3 {[%emt 0:00:00]} Nf6 {[%emt 0:00:08]} 5. e3 {[%emt 0:00:08]} g6 {[%emt 0:01:11]} 6. Nge2 {[%emt 0:00:09]} Bg7 {[%emt 0:00:06]} 7. O-O {[%emt 0:00:46]} O-O {[%emt 0:00:58]} 8. Rb1 {[%emt 0:02:10]} Ne7 {[%emt 0:09:39]} 9. d4 {[%emt 0:18:49]} d6 {[%emt 0:05:44]} 10. Nd5 {[%emt 0:13:14]} (10. b3 $14) 10... c6 $14 {[%emt 0:05:13]} (10... Nexd5 $15 11. cxd5 b6) 11. Nxf6+ {[%emt 0:00:12]} Bxf6 {[%emt 0:00:07]} 12. Nc3 {[%emt 0:03:09]} Qe8 {[%emt 0:16:54]} 13. b3 {[%emt 0:08:20]} Qf7 {[%emt 0:05:04]} 14. Ba3 {[%emt 0:03:02]} exd4 {[%emt 0:12:33]} 15. exd4 {[%emt 0:00:25]} Rd8 {[%emt 0:01:55]} 16. Re1 {[%emt 0:13:13]} Qg7 {[%emt 0:01:45]} 17. Qd2 {[%emt 0:11:02]} f4 {[%emt 0:07:04]} 18. Qxf4 {[%emt 0:04:05]} Nf5 {[%emt 0:00:49]} 19. Ne4 {[%emt 0:04:32]} Bxd4 {[%emt 0:00:14]} 20. Rbd1 {[%emt 0:00:21]} c5 {[%emt 0:03:15]} 21. Ng5 {[%emt 0:01:24]} Rf8 {[%emt 0:03:12]} 22. Bd5+ {[%emt 0:01:16]} Kh8 {[%emt 0:01:12]} 23. Nf7+ {[%emt 0:01:21]} Rxf7 {[%emt 0:01:21]} 24. Bxf7 {[%emt 0:00:13]} Qxf7 {[%emt 0:01:25]} 25. g4 {[%emt 0:00:32]} g5 {[%emt 0:06:02]} 26. Qe4 {[%emt 0:11:12]} Bd7 {[%emt 0:01:30]} 27. Qxb7 {[%emt 0:01:18]} Rf8 {[%emt 0:01:23]} 28. gxf5 {[%emt 0:01:00]} Qxf5 {[%emt 0:06:35]} 29. Qg2 {[%emt 0:00:45]} Qxf2+ {[%emt 0:01:41]} 30. Qxf2 {[%emt 0:00:18]} Bxf2+ {[%emt 0:00:10]} 31. Kf1 {[%emt 0:00:37]} Bh3+ {[%emt 0:04:01]} 32. Ke2 {[%emt 0:00:11]} Bg4+ {[%emt 0:00:05]} 33. Kd3 {[%emt 0:01:10]} Bxd1 {[%emt 0:00:29]} 34. Bb2+ {[%emt 0:00:56]} Bd4 {[%emt 0:00:24]} 35. Bxd4+ {[%emt 0:00:08]} cxd4 {[%emt 0:00:04]} 36. Rxd1 {[%emt 0:00:14]} Rf2 {[%emt 0:00:27]} 37. Ke4 {[%emt 0:01:26]} Rxh2 {[%emt 0:00:17]} 38. Kf5 {[%emt 0:00:25]} Rxa2 {[%emt 0:01:54]} 39. Kxg5 {[%emt 0:00:18]} Rb2 {[%emt 0:00:28]} 40. Rxd4 {[%emt 0:00:12]} Rxb3 {[%emt 0:00:04]} 41. Rxd6 {[%emt 0:00:24]} Rc3 {[%emt 0:01:15]} 42. Rd8+ {[%emt 0:00:31]} Kg7 {[%emt 0:00:05]} 43. Rd7+ {[%emt 0:00:03]} Kg8 {[%emt 0:00:48]} 44. Rd8+ {[%emt 0:01:35]} Kf7 {[%emt 0:00:19]} 45. Rd7+ {[%emt 0:00:18]} Ke6 {[%emt 0:00:05]} 46. Rxa7 {[%emt 0:00:09]} Ke5 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.22"]
[White "Barandiaran, Gabriel"]
[Black "Guerrero, Alvaro"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "1834"]
[BlackElo "2094"]
[Annotator "NA"]
[PlyCount "110"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. b4 {[%emt 0:02:20]} f5 {[%emt 0:14:13]} 2. Bb2 {[%emt 0:00:13]} Nf6 {[%emt 0:00:12]} 3. Nf3 {[%emt 0:00:21]} c6 {[%emt 0:02:16]} 4. e3 {[%emt 0:00:17]} d5 {[%emt 0:00:41]} 5. c4 {[%emt 0:05:18]} e6 {[%emt 0:00:08]} 6. c5 {[%emt 0:02:50]} b6 {[%emt 0:00:24]} 7. d4 {[%emt 0:03:41]} a5 {[%emt 0:02:17]} 8. a3 {[%emt 0:01:46]} Be7 {[%emt 0:06:02]} 9. Ne5 {[%emt 0:03:07]} O-O {[%emt 0:01:40]} 10. Be2 {[%emt 0:01:39]} Qc7 {[%emt 0:04:19]} 11. Nd2 {[%emt 0:02:51]} Na6 $14 {[%emt 0:03:11]} 12. cxb6 {[%emt 0:13:02]} Qxb6 {[%emt 0:00:13]} 13. Qa4 {[%emt 0:00:16]} axb4 {[%emt 0:04:29]} 14. Qxc6 {[%emt 0:01:40]} Rb8 {[%emt 0:03:25]} 15. a4 {[%emt 0:10:43]} Qa7 {[%emt 0:14:01]} 16. Bb5 {[%emt 0:08:36]} Rb6 {[%emt 0:02:55]} 17. Qc2 {[%emt 0:00:59]} Nb8 {[%emt 0:02:25]} 18. O-O {[%emt 0:03:23]} Ba6 {[%emt 0:02:09]} 19. Bxa6 {[%emt 0:05:08]} Rxa6 {[%emt 0:01:26]} 20. Rfc1 {[%emt 0:00:30]} Bd6 {[%emt 0:00:41]} 21. Ndf3 {[%emt 0:04:24]} Ne4 {[%emt 0:01:04]} 22. Ne1 {[%emt 0:06:47]} f4 {[%emt 0:07:53]} 23. exf4 {[%emt 0:08:25]} Bxe5 {[%emt 0:03:29]} 24. dxe5 {[%emt 0:00:15]} Rxf4 {[%emt 0:03:43]} 25. Nd3 {[%emt 0:00:52]} Rf8 {[%emt 0:02:56]} 26. Qc7 {[%emt 0:01:09]} Nd2 {[%emt 0:04:19]} 27. Qxa7 {[%emt 0:02:25]} Rxa7 {[%emt 0:00:02]} 28. Nc5 {[%emt 0:02:11]} Kf7 {[%emt 0:01:26]} 29. Bd4 {[%emt 0:01:05]} Rc7 {[%emt 0:00:39]} 30. a5 {[%emt 0:00:31]} Nc4 {[%emt 0:01:20]} 31. a6 {[%emt 0:00:46]} Nc6 {[%emt 0:00:13]} 32. Nb3 {[%emt 0:03:23]} Ra8 {[%emt 0:00:58]} 33. f4 {[%emt 0:01:57]} Kg6 {[%emt 0:05:19]} 34. Bc5 {[%emt 0:00:44]} Kf5 {[%emt 0:00:28]} 35. g3 {[%emt 0:00:27]} g5 {[%emt 0:00:26]} 36. fxg5 {[%emt 0:02:15]} Kxg5 {[%emt 0:01:54]} 37. Bd6 {[%emt 0:00:34]} Rca7 {[%emt 0:00:31]} 38. Nc5 {[%emt 0:00:06]} N6xe5 {[%emt 0:01:09]} 39. Nxe6+ {[%emt 0:00:25]} Kf6 {[%emt 0:00:18]} 40. Nc7 {[%emt 0:00:04]} Nxd6 {[%emt 0:00:12]} 41. Nxd5+ {[%emt 0:00:45]} Kg5 {[%emt 0:01:29]} 42. Nxb4 {[%emt 0:00:15]} Nf5 {[%emt 0:02:01]} 43. Ra5 {[%emt 0:00:38]} Nf3+ {[%emt 0:00:22]} 44. Kf2 {[%emt 0:00:41]} N3d4 {[%emt 0:00:06]} 45. g4 {[%emt 0:01:15]} Kxg4 {[%emt 0:00:09]} 46. Rg1+ {[%emt 0:00:38]} Kh4 {[%emt 0:00:13]} 47. Rga1 {[%emt 0:00:41]} Kg5 {[%emt 0:01:20]} 48. Re1 {[%emt 0:00:24]} Kg6 {[%emt 0:00:25]} 49. Re4 {[%emt 0:00:44]} Rb8 {[%emt 0:00:37]} 50. Nd5 {[%emt 0:00:44]} Rb2+ {[%emt 0:00:21]} 51. Ke1 {[%emt 0:00:18]} Nf3+ {[%emt 0:00:43]} 52. Kd1 {[%emt 0:00:09]} N5d4 {[%emt 0:00:57]} 53. Nf4+ {[%emt 0:00:39]} Kf7 {[%emt 0:00:16]} 54. Kc1 {[%emt 0:00:16]} Rc2+ {[%emt 0:00:13]} 55. Kd1 {[%emt 0:00:08]} Rd2+ {[%emt 0:00:18]} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.23"]
[White "Escofet, Jaime"]
[Black "Gomez Troccoli, Martin"]
[Result "1/2-1/2"]
[ECO "C06"]
[WhiteElo "2025"]
[BlackElo "2004"]
[Annotator "ChessBase"]
[PlyCount "107"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 e6 {[%emt 0:03:05]} 2. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:04]} 3. Nd2 {[%emt 0:00:00]} Nf6 {[%emt 0:00:06]} 4. e5 {[%emt 0:00:00]} Nfd7 {[%emt 0:00:04]} 5. Bd3 {[%emt 0:00:03]} c5 {[%emt 0:00:05]} 6. c3 {[%emt 0:00:05]} Nc6 {[%emt 0:00:04]} 7. Ne2 {[%emt 0:00:11]} cxd4 {[%emt 0:00:06]} 8. cxd4 {[%emt 0:00:07]} f6 {[%emt 0:00:06]} 9. exf6 {[%emt 0:02:13]} Nxf6 {[%emt 0:00:05]} 10. O-O {[%emt 0:00:17]} Bd6 {[%emt 0:00:07]} 11. Nf3 {[%emt 0:00:08]} Qc7 {[%emt 0:00:08]} 12. Bg5 {[%emt 0:01:02]} O-O {[%emt 0:00:08]} 13. Bh4 {[%emt 0:00:19]} Nh5 {[%emt 0:02:15]} 14. Rc1 {[%emt 0:01:57]} Rxf3 {[%emt 0:07:11]} 15. gxf3 {[%emt 0:00:07]} Bxh2+ {[%emt 0:00:04]} 16. Kg2 {[%emt 0:00:13]} Bf4 {[%emt 0:03:06]} 17. Rc2 {[%emt 0:02:07]} e5 {[%emt 0:00:56]} 18. Bg3 {[%emt 0:01:36]} Qf7 {[%emt 0:04:04]} 19. Rh1 {[%emt 0:00:35]} Nb4 {[%emt 0:03:13]} 20. dxe5 {[%emt 0:02:54]} Nxd3 {[%emt 0:01:46]} 21. Qxd3 {[%emt 0:00:07]} Bf5 {[%emt 0:00:23]} 22. Qc3 {[%emt 0:01:19]} Bh6 {[%emt 0:13:57]} 23. e6 {[%emt 0:04:01]} Bxe6 {[%emt 0:01:28]} 24. Qe5 {[%emt 0:00:26]} Nxg3 {[%emt 0:04:27]} 25. Qxg3 {[%emt 0:01:42]} Qf6 {[%emt 0:00:55]} 26. Rc7 {[%emt 0:01:39]} Rd8 {[%emt 0:04:07]} 27. Rxb7 {[%emt 0:00:12]} d4 {[%emt 0:00:34]} 28. Rb8 {[%emt 0:00:38]} Bc8 {[%emt 0:01:21]} 29. Qc7 {[%emt 0:02:04]} Qf8 {[%emt 0:06:08]} 30. Qc4+ {[%emt 0:12:20]} Kh8 {[%emt 0:01:01]} 31. Rxc8 {[%emt 0:10:46]} Rxc8 {[%emt 0:00:06]} 32. Qxd4 {[%emt 0:00:06]} Qe7 {[%emt 0:01:19]} 33. Ng3 {[%emt 0:00:41]} Rd8 {[%emt 0:01:40]} 34. Re1 {[%emt 0:03:49]} Qc7 {[%emt 0:04:00]} 35. Nf5 {[%emt 0:01:09]} Bg5 {[%emt 0:00:51]} 36. Qg4 {[%emt 0:01:47]} Bf6 {[%emt 0:00:18]} 37. Re7 {[%emt 0:00:48]} Qb6 {[%emt 0:01:53]} 38. Re2 {[%emt 0:04:23]} Bxb2 {[%emt 0:03:06]} 39. Qe4 {[%emt 0:00:35]} Qg6+ {[%emt 0:00:52]} 40. Ng3 {[%emt 0:01:11]} Qxe4 {[%emt 0:00:27]} 41. fxe4 {[%emt 0:00:07]} Be5 {[%emt 0:00:11]} 42. Rc2 {[%emt 0:01:22]} g6 {[%emt 0:04:56]} 43. Ne2 {[%emt 0:00:11]} g5 {[%emt 0:00:50]} 44. Rc5 {[%emt 0:02:26]} Re8 {[%emt 0:00:57]} 45. Ra5 {[%emt 0:00:32]} Re7 {[%emt 0:00:40]} 46. f3 {[%emt 0:01:33]} h6 {[%emt 0:06:40]} 47. Ng3 {[%emt 0:00:23]} Bb8 {[%emt 0:02:13]} 48. Ra6 {[%emt 0:01:08]} Bxg3 {[%emt 0:01:15]} 49. Kxg3 {[%emt 0:00:08]} Kg7 {[%emt 0:00:04]} 50. Kg4 {[%emt 0:02:20]} Rf7 {[%emt 0:00:04]} 51. a4 {[%emt 0:00:48]} Rf4+ {[%emt 0:01:13]} 52. Kg3 {[%emt 0:00:10]} Rf7 {[%emt 0:00:24]} 53. Rc6 h5 54. Ra6 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.24"]
[White "De la Torre, Andres"]
[Black "Trois, Francisco R.T."]
[Result "0-1"]
[ECO "A04"]
[WhiteElo "1595"]
[BlackElo "2141"]
[Annotator "ChessBase"]
[PlyCount "46"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. Nf3 {[%emt 0:00:00]} g6 {[%emt 0:00:17]} 2. g3 {[%emt 0:00:00]} Bg7 {[%emt 0:00:07]} 3. Bg2 {[%emt 0:00:07]} e5 {[%emt 0:00:21]} 4. d3 {[%emt 0:00:18]} d5 {[%emt 0:00:07]} 5. c3 {[%emt 0:01:43]} Ne7 {[%emt 0:00:29]} 6. Nbd2 {[%emt 0:02:31]} Nbc6 {[%emt 0:05:48]} 7. e4 {[%emt 0:05:23]} h6 {[%emt 0:03:15]} 8. Qc2 {[%emt 0:04:43]} O-O {[%emt 0:01:55]} 9. O-O {[%emt 0:01:38]} Be6 {[%emt 0:07:15]} 10. b3 {[%emt 0:03:13]} f5 {[%emt 0:02:54]} 11. Ba3 {[%emt 0:03:26]} dxe4 {[%emt 0:04:38]} 12. dxe4 {[%emt 0:00:27]} f4 {[%emt 0:00:06]} 13. Rad1 {[%emt 0:01:11]} Qe8 {[%emt 0:06:52]} 14. h4 {[%emt 0:03:56]} Qf7 {[%emt 0:03:06]} 15. Kh2 {[%emt 0:01:54]} g5 {[%emt 0:04:54]} 16. hxg5 {[%emt 0:04:17]} Qh5+ {[%emt 0:00:39]} 17. Kg1 {[%emt 0:00:32]} hxg5 {[%emt 0:00:07]} 18. Rde1 {[%emt 0:06:11]} Rf7 {[%emt 0:07:13]} 19. Qd1 {[%emt 0:03:12]} Ng6 {[%emt 0:02:58]} 20. Bc1 {[%emt 0:02:29]} Raf8 {[%emt 0:04:14]} 21. Nh2 {[%emt 0:01:53]} g4 {[%emt 0:00:21]} 22. f3 {[%emt 0:02:01]} fxg3 {[%emt 0:00:27]} 23. Nxg4 {[%emt 0:05:35]} Bxg4 {[%emt 0:00:25]} 0-1

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.25"]
[White "Meza, Anahi"]
[Black "Santiso, Daniel"]
[Result "1-0"]
[ECO "A90"]
[WhiteElo "2046"]
[BlackElo "1900"]
[Annotator "NA"]
[PlyCount "83"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} f5 {[%emt 0:00:00]} 3. g3 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 4. Bg2 {[%emt 0:00:00]} c6 {[%emt 0:00:14]} 5. Nc3 {[%emt 0:00:07]} d5 {[%emt 0:00:07]} 6. Nh3 {[%emt 0:02:23]} Bd6 {[%emt 0:03:43]} 7. O-O {[%emt 0:00:10]} O-O {[%emt 0:00:31]} 8. Bf4 {[%emt 0:00:48]} b6 {[%emt 0:02:03]} 9. Bxd6 {[%emt 0:20:05]} Qxd6 {[%emt 0:00:15]} 10. b3 {[%emt 0:00:05]} Bb7 {[%emt 0:05:39]} 11. e3 {[%emt 0:03:07]} Na6 {[%emt 0:04:04]} 12. Rc1 {[%emt 0:01:24]} Ne4 {[%emt 0:05:19]} 13. Ne2 {[%emt 0:04:18]} Rad8 $11 {[%emt 0:06:20]} 14. Nef4 {[%emt 0:03:08]} dxc4 {[%emt 0:05:55]} 15. Bxe4 {[%emt 0:02:04]} fxe4 {[%emt 0:00:09]} 16. Ng5 {[%emt 0:00:47]} Nc7 {[%emt 0:19:28]} 17. Qh5 {[%emt 0:14:46]} h6 {[%emt 0:00:16]} 18. Nxe4 {[%emt 0:00:07]} Qe7 {[%emt 0:00:30]} 19. Ng6 {[%emt 0:06:58]} Qe8 {[%emt 0:01:10]} 20. Qg4 {[%emt 0:06:01]} cxb3 {[%emt 0:02:03]} 21. Nxf8 {[%emt 0:00:39]} Qxf8 {[%emt 0:00:56]} 22. axb3 {[%emt 0:00:02]} Nd5 {[%emt 0:00:43]} 23. Qxe6+ {[%emt 0:00:34]} Kh8 {[%emt 0:00:15]} 24. Qg6 {[%emt 0:01:29]} Ne7 {[%emt 0:02:42]} 25. Qg4 {[%emt 0:03:08]} Bc8 {[%emt 0:00:41]} 26. Qf4 {[%emt 0:00:26]} Qg8 {[%emt 0:00:22]} 27. Qc7 {[%emt 0:04:14]} Qf8 {[%emt 0:05:23]} 28. Qf4 {[%emt 0:04:03]} Qg8 {[%emt 0:01:04]} 29. Nd2 {[%emt 0:04:18]} Bh3 {[%emt 0:01:08]} 30. Rfe1 {[%emt 0:00:20]} Rf8 31. Qh4 {[%emt 0:01:56]} Qe6 {[%emt 0:01:56]} 32. Qe4 {[%emt 0:01:57]} Qf7 {[%emt 0:02:45]} 33. f4 {[%emt 0:00:05]} Be6 {[%emt 0:03:28]} 34. Nc4 {[%emt 0:00:58]} Bd5 {[%emt 0:02:11]} 35. Qd3 {[%emt 0:00:08]} b5 {[%emt 0:06:28]} 36. Ne5 {[%emt 0:00:10]} Qg8 {[%emt 0:07:17]} 37. e4 {[%emt 0:03:42]} Bxb3 {[%emt 0:02:37]} 38. d5 {[%emt 0:00:23]} Bc4 {[%emt 0:00:59]} 39. Nxc4 {[%emt 0:01:29]} bxc4 {[%emt 0:00:09]} 40. Qxc4 {[%emt 0:00:05]} cxd5 {[%emt 0:00:09]} 41. Qc5 {[%emt 0:02:07]} Re8 {[%emt 0:01:43]} 42. Qxa7 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.26"]
[White "Soto, Nicolas"]
[Black "Avedisian, Alexander"]
[Result "1/2-1/2"]
[ECO "B35"]
[WhiteElo "2002"]
[BlackElo "1892"]
[Annotator "ChessBase"]
[PlyCount "170"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:05:55]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:07]} g6 {[%emt 0:00:00]} 3. d4 {[%emt 0:00:10]} cxd4 {[%emt 0:00:00]} 4. Nxd4 {[%emt 0:00:05]} Nf6 {[%emt 0:00:00]} 5. Nc3 {[%emt 0:01:23]} Nc6 {[%emt 0:02:57]} 6. Bc4 {[%emt 0:00:37]} Bg7 {[%emt 0:00:36]} 7. Be3 {[%emt 0:01:04]} Qa5 {[%emt 0:00:26]} 8. O-O {[%emt 0:24:31]} O-O {[%emt 0:00:05]} 9. Bb3 {[%emt 0:00:49]} d6 {[%emt 0:00:34]} 10. f3 {[%emt 0:00:57]} Bd7 {[%emt 0:01:17]} 11. Qd2 {[%emt 0:00:57]} Rac8 {[%emt 0:01:00]} 12. Rad1 {[%emt 0:00:44]} Rfe8 {[%emt 0:02:13]} 13. Nxc6 {[%emt 0:07:05]} Bxc6 {[%emt 0:00:36]} 14. Kh1 {[%emt 0:02:41]} Nd7 {[%emt 0:01:58]} 15. Bd4 {[%emt 0:01:06]} Bxd4 {[%emt 0:07:35]} 16. Qxd4 {[%emt 0:00:05]} Qc5 {[%emt 0:01:31]} 17. Qd2 {[%emt 0:02:06]} Ne5 {[%emt 0:03:48]} 18. Qh6 {[%emt 0:15:26]} e6 {[%emt 0:34:37]} 19. h4 Bb5 20. Nxb5 {[%emt 0:03:08]} Qxb5 {[%emt 0:00:41]} 21. Rf2 {[%emt 0:00:19]} a5 22. a4 Qb4 {[%emt 0:11:58]} 23. Qd2 {[%emt 0:05:43]} Qc5 {[%emt 0:00:41]} 24. Qd4 {[%emt 0:04:13]} Nc4 {[%emt 0:06:46]} 25. Bxc4 {[%emt 0:02:14]} Qxc4 {[%emt 0:00:31]} 26. Qxc4 {[%emt 0:00:36]} Rxc4 {[%emt 0:00:06]} 27. Rxd6 Rxa4 {[%emt 0:07:02]} 28. Rb6 {[%emt 0:00:32]} Re7 29. Rd2 f5 {[%emt 0:02:28]} 30. b3 {[%emt 0:02:11]} Ra1+ {[%emt 0:01:58]} 31. Kh2 {[%emt 0:00:01]} a4 {[%emt 0:00:47]} 32. bxa4 {[%emt 0:06:42]} Rxa4 {[%emt 0:00:06]} 33. Re2 {[%emt 0:00:15]} Ra6 34. Rxa6 {[%emt 0:06:07]} bxa6 {[%emt 0:04:31]} 35. exf5 {[%emt 0:00:03]} gxf5 {[%emt 0:00:14]} 36. Re5 {[%emt 0:00:01]} Kf7 {[%emt 0:01:37]} 37. Ra5 {[%emt 0:01:00]} Rc7 {[%emt 0:00:20]} 38. Rxa6 {[%emt 0:01:59]} Rxc2 {[%emt 0:00:07]} 39. Kg3 {[%emt 0:01:46]} h5 {[%emt 0:01:00]} 40. Ra7+ {[%emt 0:00:51]} Kf6 {[%emt 0:00:27]} 41. Rh7 {[%emt 0:02:02]} Kg6 {[%emt 0:00:13]} 42. Rh8 {[%emt 0:01:50]} e5 {[%emt 0:06:50]} 43. Rg8+ {[%emt 0:00:32]} Kh6 {[%emt 0:00:41]} 44. Rg5 {[%emt 0:00:21]} f4+ {[%emt 0:00:22]} 45. Kh2 {[%emt 0:00:01]} Re2 {[%emt 0:01:45]} 46. Kg1 {[%emt 0:00:18]} e4 {[%emt 0:00:05]} 47. fxe4 {[%emt 0:00:35]} Rxe4 {[%emt 0:00:08]} 48. Kf2 {[%emt 0:00:06]} Ra4 {[%emt 0:01:19]} 49. Kf3 {[%emt 0:00:17]} Rb4 {[%emt 0:00:34]} 50. Re5 {[%emt 0:00:45]} Kg6 {[%emt 0:01:45]} 51. Rg5+ {[%emt 0:00:22]} Kh6 {[%emt 0:00:26]} 52. Rf5 {[%emt 0:00:38]} Kg6 {[%emt 0:00:36]} 53. Rxf4 {[%emt 0:00:25]} Rb3+ {[%emt 0:00:16]} 54. Kf2 {[%emt 0:00:25]} Ra3 {[%emt 0:00:28]} 55. Rf3 {[%emt 0:00:30]} Ra2+ {[%emt 0:00:15]} 56. Kg3 {[%emt 0:00:16]} Ra4 {[%emt 0:00:12]} 57. Rb3 {[%emt 0:02:00]} Rc4 {[%emt 0:00:29]} 58. Rb6+ {[%emt 0:00:38]} Kf5 {[%emt 0:00:36]} 59. Rb5+ {[%emt 0:00:48]} Kg6 {[%emt 0:00:20]} 60. Kh3 {[%emt 0:00:05]} Rc3+ {[%emt 0:01:09]} 61. g3 {[%emt 0:00:07]} Rc6 {[%emt 0:00:45]} 62. Rg5+ {[%emt 0:00:10]} Kh6 {[%emt 0:00:09]} 63. Kg2 {[%emt 0:00:01]} Rc3 {[%emt 0:00:45]} 64. Kf2 {[%emt 0:00:06]} Ra3 {[%emt 0:00:35]} 65. Re5 {[%emt 0:00:06]} Kg6 {[%emt 0:00:13]} 66. Re6+ {[%emt 0:01:03]} Kh7 {[%emt 0:00:58]} 67. Re3 {[%emt 0:01:12]} Ra4 {[%emt 0:00:20]} 68. Kf3 {[%emt 0:00:12]} Kg6 {[%emt 0:00:14]} 69. Re4 {[%emt 0:00:23]} Ra5 {[%emt 0:00:37]} 70. Kf4 {[%emt 0:00:34]} Rf5+ {[%emt 0:00:22]} 71. Ke3 {[%emt 0:00:06]} Ra5 {[%emt 0:00:51]} 72. Re8 {[%emt 0:01:51]} Ra3+ {[%emt 0:00:14]} 73. Kf4 {[%emt 0:00:15]} Ra4+ {[%emt 0:00:09]} 74. Re4 {[%emt 0:00:01]} Ra6 {[%emt 0:00:18]} 75. Rd4 {[%emt 0:00:18]} Re6 {[%emt 0:00:49]} 76. Rd5 {[%emt 0:02:42]} Rf6+ {[%emt 0:00:46]} 77. Ke4 {[%emt 0:00:43]} Re6+ {[%emt 0:00:19]} 78. Kd4 {[%emt 0:00:33]} Re1 {[%emt 0:00:46]} 79. Rg5+ {[%emt 0:00:26]} Kh6 {[%emt 0:00:17]} 80. Re5 {[%emt 0:00:04]} Rg1 {[%emt 0:00:39]} 81. Re3 {[%emt 0:00:16]} Rf1 {[%emt 0:00:46]} 82. Re6+ {[%emt 0:00:48]} Kg7 {[%emt 0:00:07]} 83. Ke5 {[%emt 0:01:01]} Rf3 {[%emt 0:00:16]} 84. Re7+ {[%emt 0:00:46]} Kg6 {[%emt 0:00:08]} 85. Re6+ {[%emt 0:00:18]} Kg7 {[%emt 0:00:08]} 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.27"]
[White "Siddeley, Hugh"]
[Black "Palacio, Enzo"]
[Result "1/2-1/2"]
[ECO "B91"]
[WhiteElo "1974"]
[BlackElo "1869"]
[Annotator "ChessBase"]
[PlyCount "71"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:08:39]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:05]} d6 {[%emt 0:00:00]} 3. d4 {[%emt 0:00:11]} cxd4 {[%emt 0:00:00]} 4. Nxd4 {[%emt 0:00:03]} Nf6 {[%emt 0:00:00]} 5. Nc3 {[%emt 0:00:04]} a6 6. g3 e5 {[%emt 0:04:07]} 7. Nde2 {[%emt 0:07:29]} Be7 {[%emt 0:00:20]} 8. Bg2 {[%emt 0:00:56]} Be6 {[%emt 0:00:07]} 9. h3 {[%emt 0:00:31]} Nbd7 {[%emt 0:00:46]} 10. g4 {[%emt 0:00:17]} Nb6 {[%emt 0:11:30]} 11. Bg5 {[%emt 0:07:54]} h5 {[%emt 0:06:38]} 12. Bxf6 {[%emt 0:01:17]} Bxf6 {[%emt 0:00:58]} 13. Ng3 {[%emt 0:00:22]} hxg4 {[%emt 0:01:45]} 14. hxg4 {[%emt 0:00:16]} Rxh1+ {[%emt 0:00:05]} 15. Bxh1 {[%emt 0:00:20]} g6 {[%emt 0:02:15]} 16. Nd5 {[%emt 0:07:37]} Bh4 {[%emt 0:05:41]} 17. Qf3 {[%emt 0:01:51]} Bxd5 {[%emt 0:27:43]} 18. exd5 {[%emt 0:01:12]} Bxg3 {[%emt 0:01:50]} 19. Qxg3 {[%emt 0:00:22]} Qc7 {[%emt 0:01:09]} 20. Qd3 {[%emt 0:03:24]} Qc4 {[%emt 0:01:27]} 21. Qxc4 {[%emt 0:01:19]} Nxc4 {[%emt 0:00:02]} 22. O-O-O {[%emt 0:02:00]} Ke7 {[%emt 0:00:48]} 23. Be4 {[%emt 0:00:34]} Rf8 {[%emt 0:00:34]} 24. Rh1 {[%emt 0:03:58]} Kf6 {[%emt 0:02:06]} 25. b3 {[%emt 0:01:41]} Nb6 {[%emt 0:00:04]} 26. Kd2 {[%emt 0:00:23]} Kg7 {[%emt 0:00:27]} 27. g5 {[%emt 0:00:22]} Nd7 {[%emt 0:01:21]} 28. Ke3 {[%emt 0:00:54]} f5 {[%emt 0:01:53]} 29. gxf6+ {[%emt 0:00:35]} Nxf6 {[%emt 0:00:05]} 30. f3 {[%emt 0:00:34]} Nxe4 {[%emt 0:00:35]} 31. Kxe4 {[%emt 0:02:06]} Rf4+ {[%emt 0:00:10]} 32. Ke3 Rd4 {[%emt 0:02:38]} 33. c4 {[%emt 0:00:16]} Rf4 {[%emt 0:02:48]} 34. Rc1 {[%emt 0:00:32]} b6 {[%emt 0:01:10]} 35. a3 {[%emt 0:00:31]} a5 {[%emt 0:00:09]} 36. Rc2 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.28"]
[White "Aprahamian, Tomas"]
[Black "Cucchi, Nicolas"]
[Result "1/2-1/2"]
[ECO "D04"]
[WhiteElo "1415"]
[BlackElo "1970"]
[Annotator "NA"]
[PlyCount "61"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:08:32]} 2. Nf3 {[%emt 0:00:00]} d5 3. e3 {[%emt 0:00:00]} c5 {[%emt 0:00:23]} 4. b3 {[%emt 0:00:00]} cxd4 {[%emt 0:00:07]} 5. exd4 {[%emt 0:00:33]} Nc6 {[%emt 0:00:36]} 6. Bb2 {[%emt 0:00:26] D04: Colle System.} Bg4 {[%emt 0:00:26]} 7. Nbd2 {[%emt 0:01:04]} e6 {[%emt 0:00:14]} 8. a3 {[%emt 0:00:49]} Be7 {[%emt 0:00:20]} 9. Bd3 {[%emt 0:00:06]} O-O {[%emt 0:00:25]} 10. O-O {[%emt 0:00:39]} Rc8 {[%emt 0:01:07]} 11. Rc1 {[%emt 0:01:52] [#]} Bd6 $146 {[%emt 0:03:25]} ({Predecessor:} 11... Re8 12. Qe1 Bf8 13. Qe3 Bh5 14. Ne5 Nxe5 15. dxe5 Nd7 16. c4 Bc5 17. Qg3 Nf8 {½-½ (47) Antonica,D (2230)-Tsvetkov,A (2346) Bratislava 2019}) 12. c4 {[%emt 0:02:35]} Bf4 {[%emt 0:00:20]} 13. Be2 {[%emt 0:01:59]} Ne4 {[%emt 0:03:12]} 14. Rc2 {[%emt 0:01:47]} Nxd2 {[%emt 0:05:57]} 15. Nxd2 {[%emt 0:00:31]} Bf5 {[%emt 0:02:37]} 16. Rc1 {[%emt 0:01:04] [#]} dxc4 $1 {[%emt 0:00:30]} 17. Rxc4 {[%emt 0:00:45]} b5 {[%emt 0:00:30]} 18. Rxc6 {[%emt 0:05:14]} Rxc6 {[%emt 0:00:23]} 19. Bxb5 {[%emt 0:00:12]} Rb6 $2 {[%emt 0:04:02]} (19... Rc2 $19 {and Black stays clearly on top.} 20. Nc4 Qb8 {[%mdl 64] Decoy}) 20. a4 {[%emt 0:02:22]} Qc7 {[%emt 0:02:05]} 21. g3 $17 {[%emt 0:03:23]} Bxd2 {[%emt 0:01:16]} 22. Qxd2 {[%emt 0:00:25]} Qc2 {[%emt 0:00:11]} 23. Qxc2 {[%emt 0:01:50]} Bxc2 {[%emt 0:00:09]} 24. Ba3 {[%emt 0:00:07]} Rd8 {[%emt 0:01:36]} 25. Bc5 {[%emt 0:00:30]} Rb7 {[%emt 0:04:58]} 26. b4 {[%emt 0:00:38]} Be4 {[%emt 0:00:50]} 27. Re1 {[%emt 0:01:46]} Bd5 {[%emt 0:00:05]} 28. Ba6 {[%emt 0:01:53]} Rc7 {[%emt 0:00:10]} 29. a5 {[%emt 0:00:29]} Bb7 {[%emt 0:06:12]} 30. Bxb7 {[%emt 0:01:37]} Rxb7 {[%emt 0:00:09]} 31. f4 1/2-1/2

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.29"]
[White "Moccero, Eduardo"]
[Black "Cardozo, Camila"]
[Result "1-0"]
[ECO "D63"]
[WhiteElo "1926"]
[BlackElo "1539"]
[Annotator "NA"]
[PlyCount "67"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} d5 {[%emt 0:05:40]} 2. c4 {[%emt 0:00:00]} e6 {[%emt 0:00:36]} 3. Nc3 {[%emt 0:00:00]} Nf6 {[%emt 0:00:50]} 4. Bg5 {[%emt 0:00:02]} Nbd7 {[%emt 0:01:48]} 5. e3 {[%emt 0:00:12]} Be7 {[%emt 0:00:48]} 6. Nf3 {[%emt 0:00:12]} O-O {[%emt 0:00:52]} 7. Rc1 {[%emt 0:01:14]} b6 {[%emt 0:03:36]} 8. cxd5 {[%emt 0:01:23]} exd5 {[%emt 0:01:26]} 9. Be2 {[%emt 0:00:45]} Bb7 {[%emt 0:02:23]} 10. O-O {[%emt 0:01:20]} Rc8 {[%emt 0:03:48]} 11. Qb3 {[%emt 0:07:40]} Ba8 {[%emt 0:14:59]} (11... c5 $11) 12. Ba6 {[%emt 0:05:06]} Rb8 {[%emt 0:00:43]} 13. Qc2 {[%emt 0:01:23]} Bb7 {[%emt 0:01:29]} 14. Bd3 {[%emt 0:00:18]} c5 {[%emt 0:02:38]} 15. Rfe1 {[%emt 0:06:34]} Rc8 {[%emt 0:04:24]} 16. Qb1 {[%emt 0:06:26]} h6 $14 {[%emt 0:02:25]} 17. Bh4 {[%emt 0:00:12]} c4 {[%emt 0:06:40]} 18. Bf5 {[%emt 0:06:50]} Re8 {[%emt 0:09:23]} 19. Nb5 {[%emt 0:02:57]} Bb4 {[%emt 0:10:04]} 20. Bxf6 {[%emt 0:03:36]} gxf6 {[%emt 0:02:42]} 21. Red1 {[%emt 0:02:23]} a6 {[%emt 0:00:49]} 22. a3 {[%emt 0:01:21]} Be7 {[%emt 0:00:38]} 23. Nc3 {[%emt 0:00:12]} b5 {[%emt 0:07:12]} 24. Bh3 {[%emt 0:03:17]} Rb8 {[%emt 0:01:13]} 25. Qf5 {[%emt 0:00:37]} Nf8 {[%emt 0:00:49]} 26. Qh5 {[%emt 0:02:42]} Kg7 {[%emt 0:00:41]} 27. Nh4 {[%emt 0:00:55]} Ng6 {[%emt 0:05:22]} 28. Nf5+ {[%emt 0:00:29]} Kg8 {[%emt 0:00:28]} 29. Nxh6+ {[%emt 0:01:45]} Kg7 {[%emt 0:01:02]} 30. Nf5+ {[%emt 0:01:36]} Kg8 {[%emt 0:00:20]} 31. Ne2 {[%emt 0:02:02]} Bc8 {[%emt 0:01:40]} 32. Nf4 {[%emt 0:04:25]} Nxf4 {[%emt 0:01:58]} 33. exf4 {[%emt 0:00:23]} Bf8 {[%emt 0:01:18]} 34. Rc3 {[%emt 0:01:42]} 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.30"]
[White "Pinero, Ismael"]
[Black "Rodriguez Buela, Martin"]
[Result "1-0"]
[ECO "C11"]
[WhiteElo "1914"]
[Annotator "ChessBase"]
[PlyCount "95"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. e4 {[%emt 0:00:04]} e6 {[%emt 0:00:00]} 2. d4 {[%emt 0:01:44]} d5 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:00:06]} Nf6 {[%emt 0:00:00]} 4. e5 {[%emt 0:00:02]} Nfd7 {[%emt 0:00:06]} 5. f4 {[%emt 0:00:07]} c5 {[%emt 0:00:09]} 6. Nf3 {[%emt 0:00:08]} Nc6 {[%emt 0:00:06]} 7. Be3 cxd4 {[%emt 0:02:06]} 8. Nxd4 {[%emt 0:00:07]} Bc5 {[%emt 0:00:06]} 9. Qd2 {[%emt 0:00:07]} O-O {[%emt 0:01:52]} 10. Be2 {[%emt 0:00:35]} Nxd4 {[%emt 0:01:24]} 11. Bxd4 {[%emt 0:00:03]} Bxd4 {[%emt 0:00:02]} 12. Qxd4 {[%emt 0:00:21]} f6 {[%emt 0:00:12]} 13. exf6 {[%emt 0:01:10]} Qxf6 {[%emt 0:00:09]} 14. Qxf6 {[%emt 0:00:07]} Nxf6 {[%emt 0:00:14]} 15. O-O Bd7 {[%emt 0:03:15]} 16. Rad1 {[%emt 0:00:26]} a6 {[%emt 0:00:30]} 17. Rd4 {[%emt 0:01:57]} Rfc8 {[%emt 0:05:35]} 18. Bd3 {[%emt 0:03:44]} Rab8 {[%emt 0:02:05]} 19. Re1 g6 {[%emt 0:04:05]} 20. h3 {[%emt 0:06:51]} Rf8 {[%emt 0:01:53]} 21. g3 {[%emt 0:01:55]} Rbe8 {[%emt 0:07:59]} 22. Re2 {[%emt 0:03:18]} Bc6 {[%emt 0:00:46]} 23. Kh2 {[%emt 0:02:53]} Nd7 {[%emt 0:00:10]} 24. g4 {[%emt 0:02:02]} Nc5 {[%emt 0:00:45]} 25. Kg3 Nxd3 26. cxd3 h6 27. h4 {[%emt 0:04:05]} a5 {[%emt 0:04:30]} 28. a4 {[%emt 0:01:05]} g5 {[%emt 0:01:35]} 29. hxg5 hxg5 30. Re5 {[%emt 0:01:17]} gxf4+ {[%emt 0:00:57]} 31. Rxf4 {[%emt 0:00:05]} Rxf4 {[%emt 0:00:49]} 32. Kxf4 {[%emt 0:00:04]} Kf7 {[%emt 0:00:21]} 33. d4 {[%emt 0:01:24]} Rh8 {[%emt 0:01:55]} 34. Rh5 {[%emt 0:00:22]} Rg8 {[%emt 0:02:40]} 35. g5 {[%emt 0:00:40]} Rg7 {[%emt 0:08:58]} 36. Rh6 {[%emt 0:00:38]} Ke7 {[%emt 0:01:37]} 37. Rf6 {[%emt 0:01:09]} Be8 {[%emt 0:07:09]} 38. Nb5 {[%emt 0:01:23]} Rg6 {[%emt 0:01:45]} 39. Rxg6 {[%emt 0:00:39]} Bxg6 {[%emt 0:00:06]} 40. Ke5 {[%emt 0:00:06]} Bc2 {[%emt 0:04:37]} 41. Nd6 {[%emt 0:01:50]} Bxa4 {[%emt 0:00:47]} 42. Nxb7 {[%emt 0:00:09]} Bb5 {[%emt 0:15:30]} 43. Nxa5 Bd7 44. Nb7 {[%emt 0:01:31]} Bc8 {[%emt 0:00:48]} 45. Nd6 {[%emt 0:00:11]} Ba6 {[%emt 0:01:19]} 46. b4 {[%emt 0:00:08]} Bd3 {[%emt 0:00:21]} 47. b5 {[%emt 0:00:02]} Kd7 {[%emt 0:00:27]} 48. b6 1-0

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.31"]
[White "Manteiga, Franco"]
[Black "Torella, Rodolfo"]
[Result "*"]
[WhiteElo "1703"]
[BlackElo "2081"]
[Annotator "ChessBase"]
[PlyCount "1"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} *

[Event "IV Copa Marcel Duchamp 2020"]
[Site "Montevideo"]
[Date "2020.02.15"]
[Round "9.32"]
[White "Munoz Rozas, Diego"]
[Black "Belistri, Ubaldo"]
[Result "0-1"]
[ECO "A41"]
[WhiteElo "1685"]
[BlackElo "1877"]
[Annotator "NA"]
[PlyCount "48"]
[EventDate "2020.02.08"]
[EventType "swiss"]
[EventCountry "URU"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:19:17]} d6 {[%emt 0:01:35]} 2. Nf3 {[%emt 0:00:14]} Nf6 {[%emt 0:00:43]} 3. Bf4 {[%emt 0:00:09]} Bg4 {[%emt 0:03:39]} 4. e3 {[%emt 0:00:19]} Nbd7 {[%emt 0:01:15]} 5. Bb5 {[%emt 0:00:20]} c6 {[%emt 0:02:01]} (5... e5 $5 6. dxe5 dxe5 $11) 6. Be2 {[%emt 0:00:12]} Qb6 {[%emt 0:08:01]} 7. Qc1 {[%emt 0:00:06] [#]} e5 $1 {[%emt 0:11:47]} 8. dxe5 {[%emt 0:00:05]} dxe5 {[%emt 0:00:20]} 9. Bg5 $17 {[%emt 0:00:15]} (9. Bg3 $11 {keeps the balance.}) 9... e4 {[%emt 0:03:45]} 10. Bxf6 {[%emt 0:10:20]} Nxf6 {[%emt 0:01:57]} 11. Nd4 {[%emt 0:01:26]} Bxe2 {[%emt 0:04:47]} 12. Nxe2 {[%emt 0:00:06]} Bd6 {[%emt 0:03:48]} 13. O-O {[%emt 0:00:32]} Be5 {[%emt 0:00:53]} 14. c3 {[%emt 0:00:15]} O-O {[%emt 0:05:01]} 15. Nd2 {[%emt 0:00:16]} Rfe8 {[%emt 0:06:39]} 16. Ng3 {[%emt 0:03:03]} Bxg3 {[%emt 0:08:07]} 17. hxg3 {[%emt 0:00:18]} Qc5 {[%emt 0:02:00]} 18. Qd1 {[%emt 0:00:10]} Qg5 {[%emt 0:02:01]} 19. Qe2 {[%emt 0:00:28]} Ng4 {[%emt 0:04:06]} 20. Rfd1 {[%emt 0:03:45]} Re6 {[%emt 0:04:16]} 21. Qc4 {[%emt 0:03:27]} Rae8 {[%emt 0:02:42]} 22. b4 {[%emt 0:02:15]} Nxe3 {[%emt 0:03:29]} 23. Nxe4 {[%emt 0:01:29]} Rxe4 {[%emt 0:00:49]} 24. Rd4 {[%emt 0:00:38]} Nxc4 {[%emt 0:00:37]} 0-1

