[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

