[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.07"]
[Round "1.1"]
[White "Martinez Alcantara, Jose Eduardo"]
[Black "Hart, Alexander"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2592"]
[BlackElo "1963"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,75,39,21,18,6,21,21,29,16,39,31,52,44,48,43,53,47,56,30,42,20,41,29,41,41,68,36,33,0,66,63,59,52,74,80,83,75,87,77,71,93,241,231,243,236,357,357,384,391,406,405,501,421,502,479,469,494,487,477,741,695,1332,1322]} 1. Nf3 d5 2. c4 c6 3. g3 Nf6 4. Bg2 g6 5. b3 Bg7 6. Bb2 O-O 7. O-O Re8 8. Qc2 Bg4 {A11: English Opening: 1...c6} 9. d3 Bxf3 10. Bxf3 Nbd7 {The position is equal.} 11. Nd2 (11. e3 e6 12. Nd2 h5 13. Rac1 Ng4 14. d4 Nh6 15. b4 Nf6 16. a4 a6 17. b5 axb5 18. axb5 {0-1 (70) Ivanchuk,V (2771)-Karpov,A (2616) Cap d'Agde 2012}) 11... Rc8 12. Bg2 $146 ({Predecessor:} 12. Rac1 e6 13. d4 Qb6 14. e4 dxe4 15. Nxe4 Nxe4 16. Qxe4 e5 17. dxe5 Bxe5 18. Bxe5 Rxe5 {½-½ (109) Dimitrijevic,N (2302)-Gallevci,Y (1783) Novi Sad 2018}) 12... Qc7 13. Rac1 Qb8 14. b4 {[%cal Bb3b4,Bb4b5][%mdl 32]} e6 15. Qb3 h5 16. b5 Bf8 17. Nf3 Bg7 18. a4 Red8 19. Rc2 Bh6 20. Ba3 Bf8 21. Bb2 Bh6 22. Rb1 Bg7 23. Rbc1 Bh6 24. e3 Bg7 25. bxc6 bxc6 26. Qxb8 Rxb8 27. Nd4 Rb6 (27... Rdc8 $16 {keeps fighting.}) 28. a5 $18 Ra6 29. cxd5 cxd5 (29... Nxd5 {is a better defense.} 30. Nxc6 (30. Rxc6 Rxa5 31. Nb3 Bxb2 $14) 30... Rxc6) 30. Nc6 Rf8 31. Ba3 Ra8 32. d4 Nb8 33. Nxb8 {White is clearly winning.} Rxb8 34. Rc8+ Rxc8 35. Rxc8+ Kh7 36. Bb4 Ne4 (36... e5 $142 37. dxe5 Ng4 38. Bxd5 Nxe5) 37. Bf1 Bf8 38. Rxf8 {Accuracy: White = 55%, Black = 23%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "1.2"]
[White "Tamarozi, Isabelle"]
[Black "Supi, Luis Paulo"]
[Result "0-1"]
[ECO "B41"]
[WhiteElo "1963"]
[BlackElo "2578"]
[Annotator "TA"]
[PlyCount "124"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,124,51,50,51,51,51,51,51,52,49,61,61,54,53,58,49,42,37,47,27,45,48,48,0,3,0,46,9,52,7,6,0,19,-2,-7,-7,-6,-8,-8,-20,0,0,21,0,2,0,0,0,30,7,20,20,29,2,18,0,11,2,5,2,10,-2,-2,-1,-3,-2,-2,-2,-1,-1,-1,-8,-1,-8,-1,-1,-8,-2,-4,-5,-6,-168,-109,-129,-127,-127,-127,-125,-110,-91,-11,-11,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-5057,-5042,-4622,-4590,-1581,-1360,-1298,-1175]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 b6 6. Nc3 Bb7 7. Be2 {A34: Symmetrical English: 2 Nc3, lines with ...d5} Qc7 8. Be3 Nf6 9. f3 {White is slightly better.} Be7 10. Rc1 O-O 11. O-O d6 12. a3 Nbd7 13. b4 Rac8 14. Qd2 Qb8 15. Nb3 Bd8 {[#]} 16. Bf4 $146 ({Predecessor:} 16. Kh1 Bc7 17. Rfd1 Rfd8 18. g3 Ne5 {½-½ (33) Popov,I (2648)-Bocharov,D (2577) St Petersburg 2015}) 16... Ne5 17. Bxe5 dxe5 18. c5 h6 19. Na4 b5 (19... Bc6 $5 {[%cal Rc6a4]} 20. Nxb6 Bxb6 $11) 20. Nb6 Bxb6 $1 21. cxb6 Ba8 22. Nc5 Qxb6 23. Kh1 $1 Rfd8 24. Qb2 Bc6 25. Rfd1 Be8 26. Qxe5 a5 27. Rxd8 Rxd8 28. Qc3 axb4 29. axb4 Qc7 30. Nd3 Qa7 31. Qc7 Qa8 32. Ne5 Kh7 33. Bd3 Qa3 34. Qc3 Qxc3 35. Rxc3 Rd4 36. Kg1 Rxb4 37. Nxf7 Bxf7 38. e5+ Bg6 39. exf6 Bxd3 $11 {[%mdl 4096] Endgame KRB-KR} 40. f7 Rf4 $1 41. Rxd3 Rxf7 {KR-KR} 42. Rd6 Rb7 43. Rxe6 b4 {[%cal Bb5b4,Bb4b3][%mdl 32]} 44. Re2 Kg6 45. Kf2 Kf5 46. g4+ $2 {[#]} (46. Rb2 $11) 46... Kf6 (46... Kg5 $1 $19 47. Re6 h5 48. Re5+ Kf6) 47. f4 $17 b3 {Hoping for ...b2.} 48. Rb2 Ke6 49. Ke3 Kd5 {...Kc4 is the strong threat.} 50. Kd3 Rb4 (50... Rb6 $17) 51. g5 $1 $11 h5 52. f5 $1 Rh4 {[#] Threatens to win with ...Rh3+.} 53. Rxb3 Rh3+ 54. Kc2 Rxh2+ 55. Kd1 Rf2 56. f6 g6 57. Ke1 Rf4 58. Rb7 Ke6 59. Rg7 $2 {[%mdl 8192]} (59. Rb2 $11) 59... Kf5 $19 {Black is clearly winning.} 60. Re7 Kxg5 61. f7 Kh6 62. Ke2 Kg7 {Accuracy: White = 60%, Black = 56%.} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "1.3"]
[White "Cruz, Cristhian"]
[Black "Medeiros, Thauane Ferreira"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "2562"]
[BlackElo "1961"]
[Annotator "TA"]
[PlyCount "121"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,121,9,0,21,16,20,16,25,11,45,48,70,51,129,56,69,43,33,29,20,18,17,0,8,1,2,0,3,0,27,0,42,45,53,51,92,46,50,54,101,36,39,0,168,164,164,158,164,165,192,188,227,205,209,169,203,193,218,208,206,208,200,183,189,183,180,111,186,174,240,218,320,282,291,291,292,148,147,153,186,186,186,186,291,277,270,249,300,300,5616,5219,5712,5581,5243,5218,2464,2097,7779,9774,5359,6256,6629,6661,6087,1252,5583,2521]} 1. c4 e6 2. Nf3 d5 3. e3 Nf6 4. d4 Be7 5. Bd3 O-O 6. O-O Nbd7 7. Nc3 b6 8. Qe2 Bb7 9. Rd1 Re8 {E14: Queen's Indian: Classical Variation (4 e3)} 10. b3 c5 11. cxd5 exd5 {The position is equal.} 12. Bb2 cxd4 $146 ({Predecessor:} 12... Bd6 13. Ba6 Qc8 14. Bxb7 Qxb7 15. Qd3 Rac8 16. dxc5 Nxc5 17. Qf5 Nce4 18. Nxe4 Nxe4 {0-1 (37) Lysyj,I (2668)-Kosyrev,V (2520) Cheliabinsk 2016}) 13. Nxd4 Bc5 {Hoping for ...Bxd4.} 14. Na4 Ne4 (14... Bf8 $14) 15. Nf5 (15. Nxc5 $16 Ndxc5 16. Bb5) 15... Bf8 $14 16. Bb5 (16. Bxe4 $5 Rxe4 17. Rac1 $14) 16... Re6 17. Rac1 Ndc5 18. Nxc5 bxc5 19. Ng3 (19. Bd3 {is more complex.} g6 20. Ng3 Nf6 21. Qd2 a5 22. Qc2) 19... Nxg3 20. hxg3 Qb6 21. Qf1 Rd8 22. Be2 Be7 23. Rc2 (23. Bg4 $5 {[%cal Rg4e6]}) 23... Bf6 24. Bg4 Ree8 25. Bxf6 Qxf6 26. Qb5 Qg6 {[%mdl 64] [#] Double Attack} 27. Rcd2 Ba6 28. Qa4 (28. Qa5 $16) 28... d4 $1 29. Bf3 {[%cal Re3d4]} (29. Bh3 $5 {[%cal Re3d4]}) 29... d3 $2 (29... Qb6 $11 {and Black has nothing to worry.}) 30. Bc6 $18 Re6 31. Qxa6 Rxc6 32. Qxa7 Rcc8 33. Qb7 {Strongly threatening Rxd3!} Qh5 34. Qf3 ({Resist} 34. Rxd3 $6 Qxd1+ 35. Rxd1 Rxd1+ 36. Kh2 Rdd8 $16) 34... Qg6 35. e4 c4 36. bxc4 Rxc4 37. Rxd3 $40 {[%cal Rd3d8][%mdl 128] White goes for the king.} Re8 38. e5 Rcc8 39. Rd6 Qc2 40. Qd5 Qf5 41. Rd7 (41. f4 $18) 41... h6 {[#]} (41... h5 $16) 42. g4 $1 {[%cal Rg4f5]} Qg6 (42... Qf4 $142 43. g3 Qxe5 44. Qxf7+ Kh7) 43. a4 h5 (43... Re6 $142 44. Re1 Rb8) 44. gxh5 Qxh5 45. Re1 Qf5 46. e6 ({Better is} 46. a5 $18) 46... Qxd5 $16 47. Rxd5 Rxe6 48. Rxe6 fxe6 {[%mdl 4096] Endgame KR-KR} 49. Rd1 Kf7 (49... Ra8 $142) 50. a5 {[%cal Ba4a5,Ba5a6,Ba6a7][%mdl 32]} Ra8 51. Ra1 Ke7 52. a6 Kd6 $2 (52... Ra7 53. f3 Kd8) 53. a7 $18 {White is clearly winning.} Ke5 54. Kh2 Kf4 55. Ra4+ Kf5 56. Kg3 Kg5 57. Ra5+ Kf6 58. Kf4 Ke7 59. Ke5 Kd7 60. Ra6 g5 61. g4 {Accuracy: White = 59%, Black = 37%.} (61. Ra4 $142 Kc6 62. Kxe6) 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.07"]
[Round "1.4"]
[White "Ramos, Angelo Bil"]
[Black "Hernandez Guerrero, Gilberto"]
[Result "0-1"]
[ECO "A56"]
[WhiteElo "1957"]
[BlackElo "2554"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,68,64,90,75,81,68,68,68,72,68,86,61,68,47,68,41,50,26,37,27,49,-21,-29,-29,-22,-29,-30,-27,-29,-54,-49,-57,-53,-56,-56,-58,-56,-81,-75,-97,-94,-152,-139,-147,-150,-303,-326,-329,-310,-317,-267,-264,-229]} 1. d4 Nf6 ({Predecessor:} 1... g6 2. e4 Bg7 3. c4 c5 4. d5 d6 5. Bd3 e6 6. Nf3 Nf6 7. O-O O-O 8. h3 Na6 9. Re1 e5 {½-½ (38) Gruenenwald,J (2332)-Vesin,J (2241) Switzerland 2008}) 2. c4 c5 3. d5 g6 4. Nc3 Bg7 5. e4 d6 6. Nf3 O-O 7. Bd3 Na6 8. h3 e6 9. O-O e5 10. Re1 $146 {E90: King's Indian: Classical: Early deviations and 6 h3} (10. a3 Kh8 11. Bg5 h6 12. Be3 Ng8 13. Nh2 h5 14. f4 Bh6 15. Qd2 Kg7 16. fxe5 dxe5 17. Nf3 Qe7 {0-1 (63) Tregubov,P (2588)-Morozevich,A (2659) Skolkovo 2019}) 10... Ne8 11. a3 f5 12. Rb1 {White is slightly better.} f4 13. b4 Rf7 14. Be2 h6 15. Bd2 Nf6 16. Qc2 g5 17. Nh2 Bf8 18. Qd1 Rh7 19. Bh5 (19. Ng4 $14) 19... Nxh5 $11 20. Qxh5 Bd7 21. b5 Be8 22. Qe2 Nb8 {[%cal Ba6b8,Bb8d7,Bd7f6][%mdl 32]} 23. Nd1 Nd7 24. f3 h5 25. Nf2 Nf6 26. Rb3 Bd7 27. a4 $1 Qe8 28. Reb1 Qg6 29. Kf1 (29. a5 $142) 29... Be7 $17 30. Ke1 {[#]} g4 $1 {[%mdl 512]} 31. Nf1 $2 (31. fxg4 $17 hxg4 32. Nhxg4) 31... gxh3 {Black has a decisive advantage.} 32. gxh3 Rg7 33. Kd1 Qg2 34. Be1 Nh7 {Accuracy: White = 33%, Black = 88%.} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.07"]
[Round "1.5"]
[White "Diamant, Andre"]
[Black "Tomiello, Mateus Costamilan"]
[Result "1-0"]
[WhiteElo "2533"]
[BlackElo "1955"]
[Annotator "TA"]
[PlyCount "1"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 1,1,18]} 1. d4 $146 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.07"]
[Round "1.6"]
[White "Baeta, Marcio Netto"]
[Black "Lima, Darcy"]
[Result "0-1"]
[ECO "B00"]
[WhiteElo "1953"]
[BlackElo "2528"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,70,14,18,-2,3,6,27,18,75,35,45,0,41,24,20,0,35,4,14,30,14,35,37,43,41,30,35,43,50,41,27,26,45,0,19,-7,23,0,29,27,33,21,31,27,24,-45,-43,-73,-73,-113,-105,-200,-176,-227,-230,-492,-490,-29985,-29986,-29984,-29985,-29988,-29988]} 1. e4 b6 2. c4 Bb7 3. Nc3 e6 4. d3 Nf6 5. e5 (5. g3 d5 6. exd5 exd5 7. Bg2 Be7 8. Nge2 O-O 9. O-O c6 10. Nd4 Re8 11. Nf5 Bf8 {0-1 (69) Timofeev,A (2589)-Mamedyarov,S (2817) St Petersburg 2018}) 5... Ng8 6. Nf3 {A10: English Opening: Unusual Replies for Black} d6 $146 ({Predecessor:} 6... Ne7 7. d4 d6 8. exd6 cxd6 9. d5 e5 10. Bd3 Nd7 11. Qa4 {1-0 (20) Morris,C (2207)-Cafferty,B (2208) Sunningdale 2007}) 7. d4 dxe5 8. Nxe5 {White has an edge.} Nf6 (8... Nd7 $11) 9. Bg5 Be7 10. Qa4+ c6 (10... Nfd7 {seems wilder.} 11. Bxe7 Qxe7 12. Be2 O-O 13. Bf3 Bxf3 14. Nxf3 c5) 11. O-O-O O-O 12. Be2 a6 13. c5 Nd5 14. Bxe7 Qxe7 15. Ne4 Rd8 16. cxb6 Nxb6 17. Qb3 Nd5 18. Nc5 Bc8 $1 19. h4 f6 20. Ned3 Nd7 21. Nxd7 Bxd7 22. Nc5 a5 {[%cal Ba6a5,Ba5a4][%mdl 32]} 23. Bc4 a4 24. Qa3 Qd6 25. g3 Be8 26. Rhe1 Bf7 27. Qf3 {[#]} ({White should play} 27. Rd2 $11) 27... a3 $1 $15 {[%mdl 512] ...axb2+ is the strong threat.} 28. bxa3 Rdb8 29. Rd3 e5 30. Ne4 {[#]} (30. Na6 $17 Rb6 31. dxe5 fxe5 32. Nb4 $1 {[%mdl 512]}) 30... Qc7 $1 $19 31. dxe5 (31. Red1 $142) 31... Qxe5 {[#] ( -> ...Qa1+)} 32. Rb3 $2 (32. Nxf6+ $1 {[%mdl 512]} Qxf6 (32... Nxf6 33. Bxf7+) 33. Qxf6 gxf6 34. Rb3) 32... f5 33. Bxd5 (33. Qe2 $19 Rxb3 34. Bxb3 fxe4 35. Qb2) 33... Qa1+ {[%mdl 64] Double Attack, Zwischenzug. Black mates.} ({Stronger than} 33... Bxd5 34. Rxb8+ Rxb8 35. Qc3 $11) 34. Kd2 Qxa2+ {[%mdl 64] Double Attack} 35. Kc1 Bxd5 {[%mdl 64] Pin. Accuracy: White = 25%, Black = 48%.} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.07"]
[Round "1.7"]
[White "Vazquez, Guillermo"]
[Black "Reichert, Thiago Da Cruz"]
[Result "1-0"]
[ECO "E09"]
[WhiteElo "2506"]
[BlackElo "1951"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,83,23,35,30,37,29,39,40,54,39,56,20,56,10,84,68,75,75,120,122,118,77,83,63,97,93,147,145,157,155,195,191,190,185,185,168,167,170,178,23,11,3,16,-25,0,0,147,144,534,555,553,537,859,860,660,799,728,727,580,612,5025,5025,2045,1942]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O c6 7. Qc2 Nbd7 8. Nbd2 {[%cal Bb1d2,Bd2e4,Be4c3][%mdl 32]} b6 9. e4 dxe4 10. Nxe4 Bb7 11. Rd1 Qc8 12. Nc3 {E09: Closed Catalan: Main Line: 7 Qc2 c6 8 Nbd2} (12. Nxf6+ Nxf6 13. c5 Nd5 14. Bg5 f6 15. Bd2 bxc5 16. dxc5 e5 17. b4 a5 18. bxa5 Bd8 19. Nh4 f5 20. Nf3 Bf6 {1-0 (62) Krasenkow,M (2645)-Azmaiparashvili,Z (2645) Groningen 1997}) 12... Rd8 13. Bf4 Nf8 14. Ne5 {White is slightly better.} Ng6 15. Nxg6 hxg6 16. Rd2 $146 ({Predecessor:} 16. Qe2 Bd6 17. Bg5 Re8 18. Qf3 Be7 19. Rd2 Nh7 20. Bxe7 Rxe7 {1-0 (67) Mikhailov,I (1949)-Toporkova,S (1578) St Petersburg 2010}) 16... Ne8 17. Qb3 Bf6 (17... g5 $11 18. Be3 g4) 18. Rad1 $16 g5 19. Be3 Nd6 20. c5 Nf5 21. cxb6 axb6 22. Qxb6 Ra6 23. Qb3 Qc7 ({Black should try} 23... Qa8) 24. Ne4 Rda8 25. a3 Nxe3 26. fxe3 Rb6 27. Qc3 Be7 28. d5 exd5 {[#]} 29. Rxd5 $1 {[%mdl 576] Black must now prevent Rd7. Pin} Bc8 (29... cxd5 30. Qxc7) 30. Rxg5 $2 (30. Nxg5 $18 Rxb2 31. Qxb2 cxd5 32. Bxd5 {[%mdl 64] Double Attack}) 30... Bxg5 $11 31. Nxg5 Bf5 32. Qd4 Rbb8 {[#] Hoping for ...Rd8.} 33. Rf1 $40 {[%mdl 128] White is up to no good.} Bg6 (33... Ra5 $1 $11 {keeps the balance.}) 34. Be4 $16 {aiming for Bxg6.} Qd8 $2 {[%mdl 8192]} (34... Ra5 $16 35. Bxg6 fxg6) 35. Bxg6 $18 {White is clearly winning.} Qxd4 36. Bxf7+ ({And not} 36. exd4 fxg6 37. Rf2 Rb3 $15) 36... Kh8 37. exd4 Rxb2 38. Rf4 {[%cal Rf4h4]} g6 39. Ne6 {[%cal Rf4h4]} g5 40. Rf6 {[%cal Rf6h6]} Kh7 41. Nxg5+ Kg7 42. Rg6+ {Accuracy: White = 60%, Black = 36%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.07"]
[Round "1.8"]
[White "De Albuquerque, Ian Telek C."]
[Black "Di Berardino, Diego Rafael"]
[Result "0-1"]
[ECO "D85"]
[WhiteElo "1943"]
[BlackElo "2489"]
[Annotator "TA"]
[PlyCount "48"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,48,0,0,0,0,0,-100,-93,-89,-92,-271,-264,-394,-382,-410,-387,-690,-725,-705,-708,-781,-747,-29995,-29996,-29996,-29997,-29997,-29998,-29998,-29999]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5 8. Rb1 O-O 9. Be2 Nc6 10. Be3 cxd4 11. cxd4 Qa5+ {D85: Exchange Grünfeld: Unusual White 7th moves and lines with 7 Nf3} 12. Bd2 Qxa2 13. Bc3 (13. Qc1 $11 {remains equal.} Nxd4 14. Nxd4 Bxd4 15. Bc4) (13. d5 Ne5 14. Nxe5 Bxe5 15. O-O Bd7 16. Rxb7 Ba4 17. Qe1 Rfb8 18. Rb4 Rc8 19. Bg4 {0-1 (32) Vernay,C (2446)-Fier,A (2571) Caleta 2011}) 13... Bg4 $146 {Black is better.} ({Predecessor:} 13... Qa3 14. Rb3 Qd6 15. O-O a6 16. Qa1 Na7 17. Rfb1 b5 18. Bb4 Qc7 19. Qa3 {½-½ (28) Vonach,B (2008)-Aab,M (1846) Seefeld 2008}) 14. Ra1 Qe6 15. Qd3 $2 {[#]} (15. e5 $17 {might work better.} Qd7 16. O-O) 15... Bxf3 $1 $19 16. gxf3 {[#]} (16. Qxf3 $142 Bxd4 17. O-O) 16... Bxd4 $1 {[%mdl 512]} 17. Bxd4 {[#] aiming for Bb2.} Rfd8 $1 18. Be3 $2 ({Much worse is} 18. Ra4 b5 $19) (18. Qc4 Nxd4 19. Qxe6 fxe6 20. Bd1) 18... Rxd3 19. Bxd3 Nb4 20. Rd1 Rd8 21. Be2 Nc2+ {Black mates.} 22. Kf1 Qh3+ 23. Kg1 Rxd1+ 24. Bxd1 Ne1 {Accuracy: White = 24%, Black = 100%.} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.07"]
[Round "1.9"]
[White "Galego, Luis"]
[Black "Souza dos Santos, Matheus Garcett"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "2483"]
[BlackElo "1931"]
[Annotator "ChessBase"]
[PlyCount "63"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:01:53]} 2. Nf3 {[%emt 0:00:00]} d6 {[%emt 0:00:44]} 3. c3 {[%emt 0:01:01]} Nf6 {[%emt 0:01:43]} 4. Bb5+ {[%emt 0:00:29]} Bd7 {[%emt 0:00:35]} 5. Bxd7+ {[%emt 0:00:06]} Nbxd7 {[%emt 0:00:25]} 6. Qe2 {[%emt 0:00:51]} Qc7 {[%emt 0:02:25]} 7. O-O {[%emt 0:00:55]} g6 {[%emt 0:01:55]} 8. d4 {[%emt 0:04:20]} e5 {[%emt 0:06:33]} 9. dxe5 {[%emt 0:02:48]} dxe5 {[%emt 0:01:16]} 10. Bg5 {[%emt 0:04:06]} Bg7 {[%emt 0:00:47]} 11. Bxf6 {[%emt 0:06:00]} Nxf6 {[%emt 0:04:48]} 12. Qb5+ {[%emt 0:02:49]} Qd7 {[%emt 0:03:28]} 13. Qxd7+ {[%emt 0:10:14]} Nxd7 {[%emt 0:00:19]} 14. Rd1 {[%emt 0:00:16]} Rd8 {[%emt 0:04:06]} 15. Na3 {[%emt 0:00:32]} O-O {[%emt 0:11:10]} 16. Rd5 {[%emt 0:09:55]} Nf6 {[%emt 0:34:44]} 17. Rxe5 {[%emt 0:01:57]} Rd7 {[%emt 0:00:37]} 18. Rxc5 {[%emt 0:02:51]} Nxe4 {[%emt 0:00:17]} 19. Rb5 {[%emt 0:01:01]} Rfd8 {[%emt 0:01:11]} 20. Re1 {[%emt 0:00:40]} f5 {[%emt 0:01:06]} 21. Nc2 {[%emt 0:01:13]} b6 {[%emt 0:11:24]} 22. Ncd4 {[%emt 0:02:27]} Rd6 {[%emt 0:00:55]} 23. Rb4 {[%emt 0:02:21]} a6 {[%emt 0:02:23]} 24. a4 {[%emt 0:01:47]} Kf7 {[%emt 0:01:12]} 25. Rc4 {[%emt 0:00:52]} Nc5 {[%emt 0:00:59]} 26. a5 {[%emt 0:03:08]} Bxd4 {[%emt 0:02:29]} 27. Nxd4 {[%emt 0:00:11]} Nd3 {[%emt 0:03:14]} 28. Re2 {[%emt 0:09:50]} bxa5 {[%emt 0:00:44]} 29. g3 {[%emt 0:00:27]} Rb8 {[%emt 0:00:22]} 30. Rc7+ {[%emt 0:00:44]} Kf6 {[%emt 0:00:35]} 31. f4 {[%emt 0:02:45]} g5 {[%emt 0:00:39]} 32. Rxh7 {[%emt 0:01:29]} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.07"]
[Round "1.9"]
[White "Galego, Luis"]
[Black "Souza dos Santos, Matheus Garcett"]
[Result "1/2-1/2"]
[ECO "B50"]
[WhiteElo "2483"]
[BlackElo "1931"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,64,14,12,22,26,55,43,90,85,85,64,61,55,56,37,40,50,49,12,24,3,22,10,10,13,12,6,16,0,0,0,21,18,50,55,57,68,79,46,60,69,90,93,90,90,86,43,60,59,269,260,292,277,390,383,362]} 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Bb5+ Bd7 5. Bxd7+ Nbxd7 6. Qe2 Qc7 {B50: Sicilian: 2...d6, Miscellaneous} 7. O-O g6 8. d4 e5 {White is slightly better.} 9. dxe5 dxe5 10. Bg5 Bg7 11. Bxf6 $146 ({Predecessor:} 11. Na3 a6 12. Nc4 O-O 13. a4 Rfe8 14. a5 h6 15. Bxf6 Nxf6 16. Rad1 Nh5 17. g3 Qc6 {1-0 (37) Mihok,O (2535)-Benda,H (2334) Austria 2018}) 11... Nxf6 12. Qb5+ Qd7 13. Qxd7+ Nxd7 14. Rd1 Rd8 15. Na3 O-O 16. Rd5 {[#] Threatens to win with Rad1.} Nf6 17. Rxe5 Rd7 18. Rxc5 Nxe4 19. Rb5 Rfd8 {[#] White must now prevent ...Rd1+.} 20. Re1 f5 21. Nc2 b6 22. Ncd4 Rd6 23. Rb4 a6 24. a4 Kf7 25. Rc4 Nc5 26. a5 {aiming for axb6.} Bxd4 27. Nxd4 {axb6 is the strong threat.} Nd3 28. Re2 bxa5 29. g3 Rb8 $2 ({Black should try} 29... Rd5 $14) 30. Rc7+ $18 Kf6 31. f4 ({Resist} 31. Rxh7 $6 Rf8 $18) 31... g5 (31... h6 $142 32. b3 Rf8) 32. Rxh7 {And now Rh6+ would win.} Rdb6 {[%mdl 32768] Accuracy: White = 76%, Black = 37%. . An unexpected result.} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.07"]
[Round "1.10"]
[White "Moyses Sobrinho, Elias"]
[Black "Perdomo, Leandro"]
[Result "0-1"]
[ECO "E91"]
[WhiteElo "1931"]
[BlackElo "2474"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,51,-16,-6,-40,-46,-66,-54,-63,-54,-67,-64,-90,-88,-93,-93,-99,-79,-86,-87,-100,-89,-95,-69,-69,-66,-76,-60,-80,-64,-69,-20,-80]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. dxe5 dxe5 9. Bg5 h6 10. Bxf6 Qxf6 11. Nd5 Qd8 12. Qc2 {E94: King's Indian: Classical: 6 Be2 e5 7 0-0: Various Black 7th moves} c6 13. Nc3 Qe7 14. Rfd1 $146 {Black is slightly better.} ({Predecessor:} 14. a3 a5 15. Na4 b6 16. Rfd1 Rb8 17. Rab1 Rd8 18. b4 axb4 19. axb4 Nf8 {½-½ (45) Korenova,S (1749)-Tomcikova,D (1793) Ruzomberok 2018}) 14... Re8 15. h3 Nf8 {[%cal Bd7f8,Bf8e6,Be6d4][%mdl 32]} 16. Na4 b6 17. a3 Ne6 18. b4 Nd4 19. Nxd4 exd4 20. Bd3 Be5 21. Qd2 g5 22. c5 Bc7 23. Bf1 $1 Be6 {[#] Hoping for ...Bb3.} ({Don't blunder} 23... Qxe4 $2 24. Re1 $18) 24. Rab1 Red8 25. g3 h5 26. Bg2 {Accuracy: White = 45%, Black = 89%.} (26. Nb2 $1 $11 {keeps the balance.}) 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.07"]
[Round "1.11"]
[White "Matsuura, Everaldo"]
[Black "Frankental, David"]
[Result "1-0"]
[ECO "B32"]
[WhiteElo "2448"]
[BlackElo "1928"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,69,38,57,37,56,56,50,56,78,84,114,106,128,119,122,104,151,133,157,161,171,147,140,134,135,105,105,49,129,137,136,84,89,77,131,103,153,130,145,145,140,135,128,137,180,183,452,441,860,746,2039,684]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d6 5. c4 g6 6. Nc3 Bg7 7. Be3 Nf6 8. Be2 O-O 9. O-O Bd7 10. h3 Rc8 11. Nc2 $146 {B38: Sicilian: Maroczy Bind with 5...Bg7 and 7...0-0} (11. Rc1 Qa5 12. Nb3 Qd8 13. c5 Be6 14. cxd6 Qxd6 15. Nc5 b6 16. Qxd6 exd6 17. Nxe6 fxe6 18. Rfd1 Rfd8 19. Bc4 {0-1 (58) Pavlidis,A (2564)-Pavlidis,A (2362) Rio Achaea 2018}) 11... b6 12. Qd2 Na5 13. Na3 {White is slightly better.} Be6 {[%cal Ra5c4]} 14. b3 Qd7 15. Rac1 Ne8 16. Nab5 Nc6 17. f4 {Strongly threatening f5!} f5 18. Bf3 fxe4 19. Nxe4 Kh8 20. Ng5 Bg8 21. Bg4 e6 22. Rfd1 Rd8 23. Ne4 (23. c5 $16) 23... h5 (23... Qe7 $1 $14) 24. Bf3 $16 d5 25. cxd5 (25. Ng5 $142) 25... exd5 26. Ng5 Ne7 (26... Nd6 $142 27. Bxd5 Nf5 28. Bxc6 Qe7) 27. Nd4 $36 {[%mdl 2048] White has strong initiative.} Nf5 28. Nc6 Rc8 {[#]} 29. Ne5 $1 {[%mdl 512]} Bxe5 30. Rxc8 ({Don't take} 30. fxe5 Nxe3 31. Qxe3 Rxc1 $14) 30... Qxc8 31. fxe5 Nxe3 32. Qxe3 Nc7 $2 {[#]} (32... Ng7) 33. e6 $1 $18 {[%mdl 512] White is clearly winning.} Nxe6 (33... Bxe6 $142 34. Rc1 (34. Nxe6 Qxe6 35. Qc3+ {[%mdl 64] Double Attack} Kg8 $14) 34... Kg8) 34. Nxe6 Qxe6 35. Qh6+ {[%mdl 64] Double Attack. Accuracy: White = 66%, Black = 28%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.07"]
[Round "1.12"]
[White "Moccero, Eduardo"]
[Black "Molina, Roberto Junio Brito"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1927"]
[BlackElo "2448"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,66,0,0,-22,-45,-24,-30,-39,-29,-36,-21,-20,-20,-14,-23,-24,-33,-34,-12,-29,0,0,0,-53,-56,-113,-125,-129,-74,-64,-64,-63,-72,-144,-132,-141,-128,-137,-131,-259,-254,-253,-229,-231,-216,-216,-216,-217,-217,-245,-251,-255,-214,-230,-212,-212,-214]} 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. Bf4 c5 6. e3 cxd4 7. exd4 {E61: King's Indian: Early deviations for White, including Smyslov System} d5 8. h3 (8. Be2 dxc4 9. Bxc4 Bg4 10. O-O Nbd7 11. Be2 Rc8 12. h3 Bf5 13. g4 Be4 14. g5 Nd5 15. Bd2 Nxc3 16. bxc3 {½-½ (37) Yanchenko,R (2436)-Vachier Lagrave,M (2793) chess.com INT 2018}) 8... Nc6 9. Rc1 {Black has an edge.} b6 10. cxd5 $146 ({Predecessor:} 10. Be2 dxc4 11. Bxc4 Bb7 12. a3 Rc8 13. Ba2 Nh5 14. Be3 {0-1 (38) Medeiros,T (1899)-Mekhitarian,K (2556) Pocos de Caldas 2015}) 10... Nxd5 11. Nxd5 Qxd5 {[%mdl 64] [#] Double Attack} 12. Bc4 $1 {[%cal Rc4d5]} Qf5 13. Be3 Bb7 14. O-O Rad8 15. Qe2 Na5 16. Ba6 Bd5 17. Rc7 (17. Ne5 $11) 17... Nc6 $1 $15 18. Bd3 (18. Rc1 $15 Bxf3 19. Qxf3 Qxf3 20. gxf3 Nxd4 21. Bxd4 Rxd4 22. Rxe7) 18... Qe6 $17 19. Bf4 Qxe2 (19... Nxd4 20. Nxd4 Bxd4 21. Rxe7 $15) (19... Bxd4 $6 20. Qxe6 fxe6 21. Nxd4 $11) (19... Bxf3 $142 20. Qxf3 Nxd4) 20. Bxe2 Rc8 21. Rxc8 Rxc8 22. Ba6 (22. Rc1 $142) 22... Rd8 23. Rc1 Bxf3 (23... Nxd4 24. Nxd4 Bxd4 25. Rc7 $17) 24. gxf3 Nxd4 25. Rc7 (25. Bg3 $17) 25... Ne6 $19 {[%mdl 64] [#] Double Attack} ({Resist} 25... Nxf3+ 26. Kg2 $17) 26. Rc4 Rd1+ 27. Kg2 Nxf4+ 28. Rxf4 Bxb2 {KRB-KRB} 29. Bc4 e6 30. Be2 Rd2 31. Kf1 Bd4 32. Ke1 Bc3 {And now ...Rd4+ would win.} ({Weaker is} 32... Rxa2 33. Rxd4 a6 34. Rd7 $11) 33. Rc4 Ba5 {Accuracy: White = 41%, Black = 81%.} ({Stronger than} 33... Rxa2+ 34. Rxc3 Kg7 35. Rc7 $11) 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.07"]
[Round "1.13"]
[White "Zambrana, Oswaldo"]
[Black "Chaves, Jorge Antonio Torres"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2445"]
[BlackElo "1916"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,73,-27,-10,38,29,33,16,8,0,8,10,18,-10,-8,-29,-25,-63,-58,-49,-31,-37,-37,-37,-33,-35,-36,-29,-21,-17,20,14,49,44,90,81,238,125,122,131,147,147,149,135,181,216,214,201,308,308,754,751,737,726,875,787,766,735,12835,12835,12828,10177,6419,5995,29971,2991]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 e6 5. g4 Bg6 6. Nge2 a6 {B12: Caro-Kann: Advance Variation} (6... c5 7. h4 h5 8. Nf4 Bh7 9. Nxh5 Nc6 10. dxc5 Bxc5 11. Bg5 Qc7 12. f4 d4 13. Nb5 Qa5+ 14. Qd2 Nb4 15. Na3 Bxc2 16. Nc4 Qa4 17. Kf2 {1-0 (88) Caruana,F (2819)-Grischuk,A (2766) Paris 2019}) 7. h4 {h5 is the strong threat.} h6 8. Nf4 Bh7 {The position is equal.} 9. Bd3 Bxd3 10. Nxd3 Nd7 $146 {[%cal Bb8d7,Bd7c5,Bc5d3][%mdl 32]} ({Predecessor:} 10... Be7 11. h5 Nd7 12. Be3 Qc7 13. f4 c5 14. dxc5 Nxc5 15. Nxc5 Bxc5 16. Bxc5 Qxc5 {0-1 (53) Titichoca Daza,D (2010)-Mendoza,R (2163) Sucre 2018}) 11. Qe2 c5 12. dxc5 Nxc5 13. Bf4 Nxd3+ 14. Qxd3 Bb4 15. a3 Bxc3+ 16. Qxc3 Rc8 17. Qd2 Ne7 18. O-O-O Qc7 19. Kb1 Qc4 20. Rh3 Qc7 21. h5 Kd7 22. Rf3 Nc6 $2 {[#]} (22... Rhd8 $16 {was called for.}) 23. Bg3 (23. c4 $1 $18 {[%cal Rc4d5]} d4 {[#]} 24. Bxh6 $1 {[%mdl 512]} Nxe5 25. Qxd4+ Ke8 26. Bxg7 (26. Re3 Rxh6 27. Rxe5 Qxc4 $16) 26... Nxf3 27. Qd3) 23... Ke8 $16 24. Rc3 Qd7 25. f4 Ne7 26. Bh4 Rxc3 27. Qxc3 ({And not} 27. bxc3 Qb5+ 28. Ka2 Qc4+ 29. Ka1 Nc6 $15) 27... Nc6 28. Qc5 b5 (28... Rf8 $142 29. c4 d4) 29. Rd3 $18 {Strongly threatening Rc3.} g5 $2 (29... Qc7 30. a4 Kd7 31. axb5 axb5) 30. hxg6 fxg6 31. Rc3 g5 32. Qxc6 Qxc6 33. Rxc6 gxh4 34. Rc8+ Kf7 35. Rxh8 Kg7 36. Rc8 h5 37. g5 {Accuracy: White = 63%, Black = 31%.} (37. f5 $142 exf5 38. gxf5 h3 39. f6+ Kf7 40. Rc3 h2 41. Rh3 {[%mdl 64] Double Attack} h1=R+ 42. Rxh1) 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.07"]
[Round "1.14"]
[White "Brito, Vicente De Paulo Ale"]
[Black "Roselli Mailhe, Bernardo"]
[Result "0-1"]
[ECO "B21"]
[WhiteElo "1905"]
[BlackElo "2442"]
[Annotator "TA"]
[PlyCount "38"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,62,29,42,0,0,0,0,-5,-7,-8,-8,-95,-95,-95,-90,-97,-96,-95,-96,-177,-167,-189,-180,-567,-560,-560,-559,-561,-555,-532,-472,-556,-558,-742,-772,-780,-774,-1050,-1045,-1392,-1385,-1516,-1433,-2183,-2034,-5102,-5098,-5306,-5306,-29982,-29969,-29993,-29994,-29997,-29998]} 1. e4 c5 2. d4 cxd4 3. c3 g6 4. cxd4 d5 5. e5 Nc6 6. Be3 {B22: Sicilian: 2 c3} (6. Nc3 Nh6 7. h3 f6 8. exf6 exf6 9. Bb5 Bg7 10. Nge2 O-O 11. O-O Nf5 12. Ba4 Be6 13. Nf4 Bf7 14. Nfxd5 Nfxd4 {½-½ (57) Ali Marandi,C (2521)-Jumabayev,R (2621) Chicago 2018}) 6... Nh6 7. Bd3 Nf5 8. Ne2 $146 {The position is equal.} ({Predecessor:} 8. Nf3 Bg7 9. Nc3 O-O 10. O-O f6 11. exf6 Bxf6 12. Bc2 e6 13. Qd2 Bd7 14. Rad1 Qe7 15. Bxf5 gxf5 16. Bg5 Kh8 17. Bxf6+ Qxf6 {½-½ (38) Podobnik,M (2244)-Seeman,T (2429) Dos Hermanas 2004}) 8... Nxe3 9. fxe3 Bh6 10. Nf4 (10. Qd2 $11) 10... Bxf4 $17 11. exf4 Qb6 $36 {[%mdl 2112] [#] Double Attack. Black has strong initiative.} 12. Qd2 Qxd4 13. Nc3 O-O 14. Nb5 {[#]} (14. Rc1 $17 {was called for.}) 14... Qb6 $1 $19 15. a4 a6 16. a5 $2 (16. Nc3 {is more resistant.}) 16... axb5 17. axb6 Rxa1+ 18. Kf2 Rxh1 19. Bxb5 Bd7 {Played: Rh1-b1} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.07"]
[Round "1.15"]
[White "Von Buelow, Georg"]
[Black "Chaves, Joara"]
[Result "1-0"]
[ECO "E92"]
[WhiteElo "2363"]
[BlackElo "1889"]
[Annotator "RC"]
[PlyCount "97"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. Nf3 {[%emt 0:00:00]} Nf6 {[%emt 0:00:47]} 2. c4 {[%emt 0:00:00]} g6 {[%emt 0:00:56]} 3. Nc3 {[%emt 0:00:09]} Bg7 {[%emt 0:01:12]} 4. e4 {[%emt 0:00:14]} d6 {[%emt 0:00:45]} 5. d4 {[%emt 0:00:12]} O-O {[%emt 0:01:45]} 6. Be2 {[%emt 0:00:12]} e5 {[%emt 0:01:11]} 7. Be3 {[%emt 0:00:39]} Ng4 {[%emt 0:02:11]} 8. Bg5 {[%emt 0:00:40]} f6 {[%emt 0:00:07]} 9. Bc1 {[%emt 0:00:52]} Nc6 {[%emt 0:09:14]} 10. d5 {[%emt 0:00:44]} Ne7 {[%emt 0:01:38]} 11. h3 {[%emt 0:00:24]} Nh6 {[%emt 0:00:28]} 12. h4 {[%emt 0:00:24]} c6 {[%emt 0:29:13]} 13. h5 {[%emt 0:05:25]} g5 {[%emt 0:03:26]} 14. Nh2 {[%emt 0:02:51]} cxd5 {[%emt 0:02:48]} 15. cxd5 {[%emt 0:00:48]} Bd7 {[%emt 0:00:32]} 16. g4 {[%emt 0:01:37]} a6 {[%emt 0:12:13]} 17. a4 {[%emt 0:05:12]} Nc8 {[%emt 0:11:44]} 18. Nf1 {[%emt 0:01:27]} Re8 {[%emt 0:05:07]} 19. Ne3 {[%emt 0:00:52]} b6 {[%emt 0:05:01]} 20. Bd2 {[%emt 0:02:27]} Qc7 {[%emt 0:00:20]} 21. O-O {[%emt 0:01:50]} Bf8 {[%emt 0:01:11]} 22. Qb3 {[%emt 0:02:37]} Qb7 {[%emt 0:01:06]} 23. Rfc1 {[%emt 0:02:26]} Be7 24. Na2 {[%emt 0:05:54]} b5 {[%emt 0:05:15]} 25. axb5 {[%emt 0:11:58]} axb5 {[%emt 0:00:39]} 26. Nc3 {[%emt 0:02:45]} Rb8 {[%emt 0:00:42]} 27. f3 {[%emt 0:09:00]} Bd8 {[%emt 0:00:27]} 28. Kg2 {[%emt 0:00:58]} Re7 {[%emt 0:01:12]} 29. Nc2 {[%emt 0:05:34]} Na7 {[%emt 0:00:19]} 30. Nb4 {[%emt 0:01:15]} Bb6 {[%emt 0:00:17]} 31. Nc6 {[%emt 0:01:09]} Rf7 {[%emt 0:01:26]} 32. Nxb8 {[%emt 0:01:55]} Qxb8 {[%emt 0:00:02]} 33. Nxb5 {[%emt 0:03:50]} Nxb5 {[%emt 0:00:20]} 34. Bxb5 {[%emt 0:00:12]} Bd4 {[%emt 0:01:49]} 35. Ra5 {[%emt 0:02:17]} Nxg4 {[%emt 0:00:54]} 36. fxg4 {[%emt 0:00:53]} Bxg4 {[%emt 0:00:06]} 37. h6 {[%emt 0:05:26]} Rf8 {[%emt 0:01:06]} 38. Qc2 {[%emt 0:02:01]} Rc8 {[%emt 0:00:33]} 39. Bc6 {[%emt 0:00:39]} Qxb2 {[%emt 0:00:38]} 40. Qxb2 {[%emt 0:00:38]} Bxb2 {[%emt 0:00:02]} 41. Rb1 {[%emt 0:30:28]} Bd4 {[%emt 0:30:29]} 42. Rb7 {[%emt 0:00:39]} Bh5 {[%emt 0:00:48]} 43. Rg7+ {[%emt 0:01:43]} Kh8 {[%emt 0:00:12]} 44. Bd7 {[%emt 0:01:45]} Rb8 {[%emt 0:01:00]} 45. Bf5 {[%emt 0:01:18]} Bc5 {[%emt 0:00:20]} 46. Rxh7+ {[%emt 0:00:59]} Kg8 {[%emt 0:00:06]} 47. Rg7+ {[%emt 0:00:10]} Kh8 {[%emt 0:00:16]} 48. Rb7 {[%emt 0:04:19]} Rd8 {[%emt 0:00:16]} 49. Rab5 {[%emt 0:00:12]} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "1.16"]
[White "Rodrigues, Nei Jorge"]
[Black "Limp, Eduardo Thelio"]
[Result "0-1"]
[ECO "A06"]
[WhiteElo "1880"]
[BlackElo "2356"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,68,21,20,18,26,41,53,65,-11,119,108,147,82,118,109,141,139,140,123,132,100,101,110,110,101,87,80,64,66,81,84,87,54,58,54,65,65,58,6,20,18,43,0,54,37,38,37,67,33,72,56,76,38,41]} 1. Nf3 d5 2. e3 Nf6 3. c4 e6 4. Nc3 c6 5. b3 Nbd7 6. Bb2 Bd6 7. Qc2 O-O 8. Be2 a6 9. d4 Qe7 {D45: Semi-Slav: 5 e3} (9... b5 10. O-O Bb7 11. Rad1 Rc8 12. Rfe1 Re8 13. Bd3 h6 14. Qb1 Bb8 15. Ne2 Qa5 16. Ng3 dxc4 17. bxc4 c5 18. dxc5 Bxf3 19. gxf3 bxc4 20. Bxc4 Rxc5 {0-1 (61) Mamedyarov,S (2747)-Movsesian,S (2653) Huaian 2016}) 10. O-O dxc4 11. bxc4 e5 12. d5 $146 (12. c5 $14 Bc7 13. h3) ({Predecessor:} 12. Rab1 Re8 13. Nh4 Qf8 14. Nf5 Bc7 15. c5 g6 16. Ng3 Qh6 17. Bf3 Qh4 18. Nce4 {1-0 (18) Halkias,S (2588)-Drazic,S (2535) Vrnjacka Banja 2010}) 12... c5 (12... cxd5 $11 13. Nxd5 (13. cxd5 b5 $11) 13... Nxd5 14. cxd5 b5) 13. e4 Ne8 14. Nd1 (14. a4 $142) 14... Rb8 15. a4 a5 16. Ne3 g6 17. Bd3 f6 18. h4 h5 19. Kh1 Rf7 20. Rg1 Rh7 21. g4 hxg4 22. Rxg4 Kf7 23. Rag1 Nf8 24. R4g3 Ng7 25. R3g2 Nh5 26. Rh2 Bd7 27. Qd1 (27. Be2 $14) 27... b6 28. Bc1 Rb7 29. Ng4 Kg7 ({Black should try} 29... Ke8 $11) 30. Bd2 Qe8 31. Bc2 Qc8 32. Rhg2 Be8 33. Qc1 Re7 34. Rh2 Bd7 {[%mdl 32768] Accuracy: White = 39%, Black = 41%. . Loss on time!?} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "2.1"]
[White "Librelato, Kathie Goulart"]
[Black "Martinez Alcantara, Jose Eduardo"]
[Result "0-1"]
[ECO "B66"]
[WhiteElo "2217"]
[BlackElo "2592"]
[Annotator "ChessBase"]
[PlyCount "68"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} d6 {[%emt 0:00:22]} 3. d4 {[%emt 0:00:00]} cxd4 {[%emt 0:00:05]} 4. Nxd4 {[%emt 0:00:02]} Nf6 {[%emt 0:00:34]} 5. Nc3 {[%emt 0:00:11]} Nc6 {[%emt 0:02:53]} 6. Bg5 {[%emt 0:00:23]} e6 {[%emt 0:00:05]} 7. Qd2 {[%emt 0:00:35]} a6 {[%emt 0:00:59]} 8. O-O-O {[%emt 0:00:33]} Qb6 {[%emt 0:04:40]} 9. Nb3 {[%emt 0:18:40]} Be7 {[%emt 0:06:53]} 10. f3 {[%emt 0:02:54]} Qc7 {[%emt 0:03:00]} 11. Bf4 {[%emt 0:17:26]} Ne5 {[%emt 0:00:46]} 12. Be2 {[%emt 0:00:41]} Rb8 {[%emt 0:04:29]} 13. g4 {[%emt 0:07:47]} b5 {[%emt 0:00:17]} 14. g5 {[%emt 0:08:57]} Nfd7 {[%emt 0:00:20]} 15. h4 {[%emt 0:01:36]} b4 {[%emt 0:05:54]} 16. Nb1 {[%emt 0:00:43]} a5 {[%emt 0:01:12]} 17. h5 {[%emt 0:07:53]} a4 {[%emt 0:14:07]} 18. Nd4 {[%emt 0:00:42]} Nc4 {[%emt 0:00:55]} 19. Bxc4 {[%emt 0:04:30]} Qxc4 {[%emt 0:00:04]} 20. b3 {[%emt 0:02:44]} axb3 {[%emt 0:00:06]} 21. axb3 {[%emt 0:00:06]} Qc7 {[%emt 0:01:11]} 22. g6 {[%emt 0:10:05]} Nc5 {[%emt 0:01:40]} 23. Qe3 {[%emt 0:13:05]} e5 {[%emt 0:02:20]} 24. h6 {[%emt 0:00:35]} fxg6 {[%emt 0:01:12]} 25. hxg7 {[%emt 0:00:44]} Rg8 {[%emt 0:00:06]} 26. Rxh7 {[%emt 0:00:29]} exf4 {[%emt 0:01:14]} 27. Qxf4 {[%emt 0:00:24]} Ne6 {[%emt 0:01:47]} 28. Qg3 {[%emt 0:01:24]} Bg5+ {[%emt 0:00:27]} 29. Kb2 {[%emt 0:00:29]} Nxd4 {[%emt 0:00:09]} 30. Rxd4 {[%emt 0:00:25]} Bf6 {[%emt 0:00:09]} 31. Qxg6+ {[%emt 0:00:46]} Qf7 {[%emt 0:00:11]} 32. Qg1 {[%emt 0:00:36]} Qa7 {[%emt 0:01:01]} 33. e5 {[%emt 0:00:33]} Qxd4+ {[%emt 0:00:17]} 34. Qxd4 {[%emt 0:00:07]} Bxe5 {[%emt 0:00:03]} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "2.2"]
[White "Supi, Luis Paulo"]
[Black "Alboredo, Julia"]
[Result "1-0"]
[ECO "E63"]
[WhiteElo "2578"]
[BlackElo "2184"]
[Annotator "ChessBase"]
[PlyCount "59"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:01:43]} 2. c4 {[%emt 0:00:55]} g6 {[%emt 0:00:25]} 3. g3 {[%emt 0:00:15]} Bg7 {[%emt 0:01:11]} 4. Bg2 {[%emt 0:00:04]} O-O {[%emt 0:00:32]} 5. Nc3 {[%emt 0:00:04]} d6 {[%emt 0:00:08]} 6. Nf3 {[%emt 0:00:05]} Nc6 {[%emt 0:01:05]} 7. O-O {[%emt 0:00:08]} a6 {[%emt 0:00:33]} 8. b3 {[%emt 0:01:21]} Rb8 {[%emt 0:02:48]} 9. d5 {[%emt 0:00:28]} Na5 {[%emt 0:02:11]} 10. Bg5 {[%emt 0:00:15]} c5 {[%emt 0:08:29]} 11. dxc6 {[%emt 0:01:35]} bxc6 {[%emt 0:05:40]} 12. c5 {[%emt 0:19:14]} h6 {[%emt 0:16:39]} 13. Bd2 {[%emt 0:04:11]} d5 {[%emt 0:03:11]} 14. Bf4 {[%emt 0:03:38]} Rb4 {[%emt 0:06:13]} 15. Be5 {[%emt 0:08:38]} Nd7 {[%emt 0:12:39]} 16. Bxg7 {[%emt 0:00:22]} Kxg7 {[%emt 0:00:02]} 17. Qd2 {[%emt 0:03:20]} Rb8 {[%emt 0:07:17]} 18. e4 {[%emt 0:03:12]} Nf6 {[%emt 0:10:17]} 19. e5 {[%emt 0:05:05]} Ne4 {[%emt 0:01:09]} 20. Qd4 {[%emt 0:00:55]} Nxc3 {[%emt 0:04:50]} 21. Qxc3 {[%emt 0:00:12]} Kh7 {[%emt 0:01:47]} 22. Nd4 {[%emt 0:00:37]} Qc7 {[%emt 0:00:19]} 23. Rae1 {[%emt 0:01:00]} Nb7 {[%emt 0:04:28]} 24. f4 {[%emt 0:02:16]} f5 {[%emt 0:03:25]} 25. exf6 {[%emt 0:03:16]} exf6 {[%emt 0:00:16]} 26. Re3 {[%emt 0:01:33]} Rf7 {[%emt 0:02:47]} 27. Rfe1 {[%emt 0:01:27]} Bd7 {[%emt 0:00:49]} 28. Re7 {[%emt 0:00:22]} Kg8 {[%emt 0:01:22]} 29. Bh3 {[%emt 0:00:56]} f5 {[%emt 0:00:50]} 30. Ne6 {[%emt 0:00:23]} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "2.3"]
[White "Cezila Jr, Rubens"]
[Black "Cruz, Cristhian"]
[Result "0-1"]
[ECO "C11"]
[WhiteElo "2191"]
[BlackElo "2562"]
[Annotator "ChessBase"]
[PlyCount "54"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} e6 {[%emt 0:00:42]} 2. d4 {[%emt 0:00:00]} d5 {[%emt 0:00:04]} 3. Nc3 {[%emt 0:00:00]} Nf6 {[%emt 0:00:06]} 4. Bg5 {[%emt 0:00:00]} dxe4 {[%emt 0:00:10]} 5. Nxe4 {[%emt 0:00:09]} Be7 {[%emt 0:00:03]} 6. Bxf6 {[%emt 0:00:58]} gxf6 {[%emt 0:00:16]} 7. Nf3 {[%emt 0:01:03]} f5 {[%emt 0:00:27]} 8. Nc3 {[%emt 0:01:40]} a6 {[%emt 0:00:05]} 9. Qe2 {[%emt 0:10:37]} b5 {[%emt 0:00:31]} 10. a3 {[%emt 0:00:15]} Qd6 {[%emt 0:04:54]} 11. O-O-O {[%emt 0:07:47]} Nd7 {[%emt 0:02:33]} 12. d5 {[%emt 0:21:54]} e5 {[%emt 0:01:38]} 13. Re1 {[%emt 0:00:17]} e4 {[%emt 0:01:41]} 14. Nd4 {[%emt 0:00:04]} Nf6 {[%emt 0:02:27]} 15. Nc6 {[%emt 0:06:21]} Nxd5 {[%emt 0:03:43]} 16. Nxd5 {[%emt 0:00:15]} Qxd5 {[%emt 0:01:21]} 17. Nxe7 {[%emt 0:00:05]} Kxe7 {[%emt 0:00:05]} 18. f3 {[%emt 0:07:58]} Qa2 {[%emt 0:15:43]} 19. c3 {[%emt 0:05:15]} Be6 {[%emt 0:05:13]} 20. fxe4 {[%emt 0:00:55]} f4 {[%emt 0:00:13]} 21. Qc2 {[%emt 0:04:16]} Rhg8 {[%emt 0:04:55]} 22. g3 {[%emt 0:22:37]} fxg3 {[%emt 0:00:50]} 23. hxg3 {[%emt 0:00:05]} Rxg3 {[%emt 0:01:06]} 24. Rxh7 {[%emt 0:03:56]} Rd8 {[%emt 0:04:02]} 25. Rh2 {[%emt 0:03:51]} Bb3 {[%emt 0:02:37]} 26. Qb1 {[%emt 0:00:11]} Re3 {[%emt 0:00:19]} 27. Rhe2 {[%emt 0:00:39]} Red3 {[%emt 0:00:12]} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "2.4"]
[White "Hernandez Guerrero, Gilberto"]
[Black "Carraro, Denise"]
[Result "1-0"]
[ECO "C00"]
[WhiteElo "2554"]
[BlackElo "2177"]
[Annotator "ChessBase"]
[PlyCount "69"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} e6 {[%emt 0:04:42]} 2. d3 {[%emt 0:00:30]} c5 {[%emt 0:01:51]} 3. g3 {[%emt 0:00:40]} Nc6 {[%emt 0:00:38]} 4. Bg2 {[%emt 0:00:47]} d5 {[%emt 0:03:22]} 5. exd5 {[%emt 0:06:32]} exd5 {[%emt 0:00:05]} 6. Nc3 {[%emt 0:00:22]} Be6 {[%emt 0:01:58]} 7. Nge2 {[%emt 0:01:23]} Qd7 {[%emt 0:06:39]} 8. Nf4 {[%emt 0:10:34]} Nge7 {[%emt 0:09:32]} 9. O-O {[%emt 0:03:39]} O-O-O {[%emt 0:17:46]} 10. h3 {[%emt 0:07:13]} h6 {[%emt 0:16:16]} 11. a3 {[%emt 0:01:15]} g5 {[%emt 0:00:36]} 12. Nxe6 {[%emt 0:00:41]} fxe6 {[%emt 0:00:02]} 13. b4 {[%emt 0:03:51]} Nf5 {[%emt 0:04:32]} 14. b5 {[%emt 0:06:18]} Nce7 {[%emt 0:02:22]} 15. Rb1 {[%emt 0:03:33]} Ng6 {[%emt 0:10:37]} 16. a4 {[%emt 0:05:16]} Rg8 {[%emt 0:03:01]} 17. Kh1 {[%emt 0:15:39]} Bd6 {[%emt 0:00:21]} 18. Ne2 {[%emt 0:00:31]} Bb8 {[%emt 0:04:11]} 19. d4 {[%emt 0:03:04]} c4 {[%emt 0:06:25]} 20. a5 {[%emt 0:03:55]} Qd6 {[%emt 0:00:37]} 21. Bd2 {[%emt 0:00:24]} h5 {[%emt 0:01:40]} 22. Bxg5 {[%emt 0:04:55]} Rdf8 {[%emt 0:00:59]} 23. b6 {[%emt 0:01:43]} a6 {[%emt 0:00:06]} 24. Bd2 {[%emt 0:05:50]} Rf7 {[%emt 0:00:03]} 25. Nf4 {[%emt 0:04:59]} h4 {[%emt 0:02:14]} 26. Bb4 {[%emt 0:01:50]} Qd8 {[%emt 0:00:29]} 27. Nxg6 {[%emt 0:01:48]} Rxg6 {[%emt 0:01:06]} 28. g4 {[%emt 0:00:10]} Qg5 {[%emt 0:00:58]} 29. Bd2 {[%emt 0:00:32]} Bf4 30. Bxf4 {[%emt 0:00:36]} Qxf4 {[%emt 0:00:03]} 31. c3 {[%emt 0:01:08]} Rfg7 {[%emt 0:00:39]} 32. Qe2 {[%emt 0:00:50]} Nh6 {[%emt 0:01:14]} 33. Rbe1 {[%emt 0:00:38]} Rf6 {[%emt 0:00:45]} 34. Bxd5 {[%emt 0:00:27]} Qd6 {[%emt 0:00:34]} 35. Qxc4+ {[%emt 0:00:38]} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "2.5"]
[White "Diamant, Andre"]
[Black "Rocha, Vitor Firmo de Souza"]
[Result "1-0"]
[ECO "A16"]
[WhiteElo "2533"]
[BlackElo "2169"]
[Annotator "ChessBase"]
[PlyCount "77"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. c4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:33]} 2. Nc3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:51]} 3. Nf3 {[%emt 0:02:25]} d6 {[%emt 0:00:35]} 4. d4 {[%emt 0:01:24]} e5 {[%emt 0:00:11]} 5. d5 {[%emt 0:03:47]} Ne7 {[%emt 0:01:49]} 6. e4 {[%emt 0:02:11]} Ng6 {[%emt 0:01:23]} 7. h4 {[%emt 0:03:43]} h5 {[%emt 0:01:44]} 8. Ng5 {[%emt 0:00:36]} Be7 {[%emt 0:01:11]} 9. g3 {[%emt 0:01:59]} a5 {[%emt 0:08:35]} 10. Be2 {[%emt 0:02:17]} Bd7 {[%emt 0:09:01]} 11. Bd2 {[%emt 0:04:30]} Qc8 {[%emt 0:08:38]} 12. Rc1 {[%emt 0:06:12]} Nf8 {[%emt 0:05:44]} 13. Kf1 {[%emt 0:01:25]} N8h7 {[%emt 0:12:14]} 14. Kg2 {[%emt 0:00:36]} g6 {[%emt 0:03:15]} 15. f3 {[%emt 0:05:06]} c5 {[%emt 0:06:09]} 16. dxc6 {[%emt 0:02:54]} bxc6 {[%emt 0:00:12]} 17. c5 {[%emt 0:00:22]} d5 {[%emt 0:02:04]} 18. Nxh7 {[%emt 0:04:25]} Rxh7 {[%emt 0:00:22]} 19. exd5 {[%emt 0:01:43]} Nxd5 {[%emt 0:01:22]} 20. Bc4 {[%emt 0:07:09]} Be6 {[%emt 0:02:19]} 21. Ne4 {[%emt 0:02:25]} f5 {[%emt 0:01:08]} 22. Ng5 {[%emt 0:03:48]} Bxg5 {[%emt 0:00:31]} 23. Bxg5 {[%emt 0:00:14]} f4 {[%emt 0:01:35]} 24. Re1 {[%emt 0:04:46]} Ne3+ {[%emt 0:06:39]} 25. Rxe3 {[%emt 0:00:09]} fxe3 {[%emt 0:00:08]} 26. Qd6 {[%emt 0:00:11]} Bxc4 {[%emt 0:08:57]} 27. Qxg6+ {[%emt 0:02:13]} Rf7 {[%emt 0:01:10]} 28. Rxc4 {[%emt 0:00:02]} Rb8 {[%emt 0:02:32]} 29. b3 {[%emt 0:00:51]} Rb4 {[%emt 0:03:58]} 30. Rc3 {[%emt 0:00:48]} Rd4 {[%emt 0:04:11]} 31. Bxe3 {[%emt 0:04:13]} Rd1 {[%emt 0:01:08]} 32. Bh6 {[%emt 0:05:15]} Qf5 {[%emt 0:02:11]} 33. Qxc6+ {[%emt 0:01:20]} Ke7 {[%emt 0:00:57]} 34. Qb7+ {[%emt 0:04:34]} Ke8 {[%emt 0:00:29]} 35. Qb8+ {[%emt 0:10:05]} Ke7 {[%emt 0:00:34]} 36. Bg5+ {[%emt 0:00:42]} Rf6 {[%emt 0:00:54]} 37. Qh8 {[%emt 0:01:59]} Qb1 {[%emt 0:00:24]} 38. Qxf6+ {[%emt 0:00:32]} Kd7 {[%emt 0:00:19]} 39. c6+ {[%emt 0:00:19]} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "2.6"]
[White "Zuriel, Marisa"]
[Black "Vazquez, Guillermo"]
[Result "0-1"]
[ECO "B47"]
[WhiteElo "2178"]
[BlackElo "2506"]
[Annotator "ChessBase"]
[PlyCount "62"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:05:12]} c5 {[%emt 0:00:46]} 2. Nf3 {[%emt 0:00:09]} Nc6 {[%emt 0:00:11]} 3. d4 {[%emt 0:00:56]} cxd4 {[%emt 0:00:10]} 4. Nxd4 {[%emt 0:00:08]} e6 {[%emt 0:01:04]} 5. Nc3 {[%emt 0:01:03]} Qc7 {[%emt 0:00:15]} 6. f4 {[%emt 0:04:32]} Nxd4 {[%emt 0:01:54]} 7. Qxd4 {[%emt 0:00:09]} b6 {[%emt 0:00:07]} 8. Be3 {[%emt 0:06:08]} Bb7 9. O-O-O {[%emt 0:02:45]} Nf6 {[%emt 0:02:58]} 10. Be2 {[%emt 0:04:38]} Bc5 {[%emt 0:08:09]} 11. Qd3 {[%emt 0:00:27]} Ba6 {[%emt 0:00:25]} 12. Qd2 {[%emt 0:05:16]} Bxe3 {[%emt 0:02:24]} 13. Qxe3 {[%emt 0:00:05]} Bxe2 {[%emt 0:00:12]} 14. Nxe2 {[%emt 0:00:08]} Rc8 {[%emt 0:03:33]} 15. Rd2 {[%emt 0:03:39]} b5 {[%emt 0:11:12]} 16. Kb1 {[%emt 0:06:20]} O-O {[%emt 0:06:03]} 17. Rhd1 {[%emt 0:05:29]} d5 {[%emt 0:04:07]} 18. exd5 {[%emt 0:00:57]} Nxd5 {[%emt 0:02:02]} 19. Qf3 {[%emt 0:00:17]} Qb6 {[%emt 0:04:49]} 20. Rd4 {[%emt 0:10:46]} b4 {[%emt 0:04:05]} 21. Qd3 {[%emt 0:05:23]} a5 {[%emt 0:03:17]} 22. f5 {[%emt 0:12:42]} a4 {[%emt 0:02:37]} 23. fxe6 {[%emt 0:00:44]} fxe6 {[%emt 0:00:10]} 24. Rh4 {[%emt 0:00:15]} g6 {[%emt 0:05:16]} 25. Rd4 {[%emt 0:17:57]} Rf2 {[%emt 0:01:44]} 26. Ka1 {[%emt 0:02:34]} Qc6 {[%emt 0:04:26]} 27. Kb1 {[%emt 0:02:14]} a3 {[%emt 0:01:38]} 28. Re4 {[%emt 0:02:02]} axb2 {[%emt 0:01:39]} 29. Kxb2 {[%emt 0:00:11]} Rxg2 {[%emt 0:01:25]} 30. Nd4 {[%emt 0:01:11]} Qc3+ {[%emt 0:00:22]} 31. Kb1 {[%emt 0:00:07]} Qxd3 {[%emt 0:00:16]} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "2.7"]
[White "Di Berardino, Diego Rafael"]
[Black "De Carvalho, Jose Jorge"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2489"]
[BlackElo "2149"]
[Annotator "ChessBase"]
[PlyCount "71"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:01:59]} d5 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:09]} e6 {[%emt 0:00:11]} 3. Nc3 {[%emt 0:01:15]} Nf6 {[%emt 0:00:19]} 4. Nf3 {[%emt 0:00:56]} Be7 {[%emt 0:00:32]} 5. Bf4 {[%emt 0:00:07]} O-O {[%emt 0:00:47]} 6. e3 {[%emt 0:00:03]} b6 {[%emt 0:00:24]} 7. Bd3 {[%emt 0:00:19]} Bb7 {[%emt 0:01:56]} 8. cxd5 {[%emt 0:01:39]} Nxd5 {[%emt 0:01:44]} 9. Nxd5 {[%emt 0:04:28]} exd5 {[%emt 0:00:26]} 10. O-O {[%emt 0:18:53]} c5 {[%emt 0:07:21]} 11. dxc5 {[%emt 0:03:00]} bxc5 {[%emt 0:00:22]} 12. Qc2 {[%emt 0:13:22]} h6 {[%emt 0:01:15]} 13. Rfd1 {[%emt 0:00:08]} Nc6 {[%emt 0:21:51]} 14. a3 {[%emt 0:01:18]} Qb6 {[%emt 0:01:46]} 15. Rac1 {[%emt 0:10:37]} Rad8 {[%emt 0:07:13]} 16. Bh7+ {[%emt 0:04:20]} Kh8 {[%emt 0:00:28]} 17. Bf5 {[%emt 0:00:16]} Rfe8 {[%emt 0:15:32]} 18. Ne5 {[%emt 0:22:49]} Nxe5 {[%emt 0:00:34]} 19. Bxe5 {[%emt 0:00:03]} Bf8 {[%emt 0:00:22]} 20. Bf4 {[%emt 0:02:17]} Kg8 {[%emt 0:07:10]} 21. Bg4 {[%emt 0:04:47]} d4 {[%emt 0:09:36]} 22. exd4 {[%emt 0:03:45]} Re4 {[%emt 0:08:25]} 23. dxc5 {[%emt 0:00:05]} Rxd1+ {[%emt 0:00:13]} 24. Qxd1 {[%emt 0:00:03]} Bxc5 {[%emt 0:01:53]} 25. Bg3 {[%emt 0:02:01]} Qxb2 {[%emt 0:05:12]} 26. Rb1 {[%emt 0:03:24]} Qc3 {[%emt 0:00:03]} 27. Bf5 {[%emt 0:00:50]} Rd4 {[%emt 0:00:43]} 28. Qe2 {[%emt 0:00:11]} g6 {[%emt 0:01:35]} 29. Bxg6 fxg6 {[%emt 0:01:14]} 30. Qe8+ {[%emt 0:01:16]} Bf8 {[%emt 0:00:26]} 31. Qxg6+ {[%emt 0:00:25]} Bg7 {[%emt 0:00:28]} 32. Be5 {[%emt 0:00:22]} Rg4 {[%emt 0:03:07]} 33. Qe6+ {[%emt 0:00:16]} Kh7 {[%emt 0:00:49]} 34. Bxc3 {[%emt 0:00:17]} Rxg2+ {[%emt 0:00:37]} 35. Kf1 {[%emt 0:00:03]} Rg6 {[%emt 0:00:51]} 36. Rxb7 {[%emt 0:00:21]} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "2.8"]
[White "Abrantes, Tiago Garrido"]
[Black "Galego, Luis"]
[Result "0-1"]
[ECO "A40"]
[WhiteElo "2159"]
[BlackElo "2483"]
[Annotator "ChessBase"]
[PlyCount "66"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:18]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:13]} e6 {[%emt 0:00:00]} 3. g3 {[%emt 0:00:10]} Bb4+ {[%emt 0:01:01]} 4. Bd2 {[%emt 0:00:10]} Bxd2+ {[%emt 0:02:20]} 5. Qxd2 {[%emt 0:08:26]} d5 {[%emt 0:04:29]} 6. Bg2 {[%emt 0:00:18]} O-O {[%emt 0:02:42]} 7. Nf3 {[%emt 0:00:31]} Nbd7 {[%emt 0:01:03]} 8. O-O {[%emt 0:01:49]} Qe7 {[%emt 0:03:04]} 9. b3 {[%emt 0:04:29]} dxc4 {[%emt 0:02:55]} 10. bxc4 {[%emt 0:00:38]} e5 {[%emt 0:01:11]} 11. Nc3 {[%emt 0:03:28]} exd4 {[%emt 0:07:44]} 12. Qxd4 {[%emt 0:04:19]} c6 {[%emt 0:00:52]} 13. e4 {[%emt 0:00:47]} Nc5 {[%emt 0:00:17]} 14. e5 {[%emt 0:02:12]} Nfd7 {[%emt 0:00:11]} 15. Rad1 {[%emt 0:06:06]} Nb6 {[%emt 0:03:56]} 16. Ne4 {[%emt 0:27:36]} Nxe4 {[%emt 0:01:32]} 17. Qxe4 {[%emt 0:01:16]} Be6 {[%emt 0:00:22]} 18. Rd4 {[%emt 0:03:57]} Rad8 {[%emt 0:06:06]} 19. Rfd1 {[%emt 0:00:42]} Nxc4 {[%emt 0:06:43]} 20. h4 {[%emt 0:02:41]} Bd5 {[%emt 0:01:48]} 21. Rxd5 {[%emt 0:02:44]} Rxd5 {[%emt 0:01:41]} 22. Rxd5 {[%emt 0:00:16]} cxd5 {[%emt 0:00:04]} 23. Qxd5 {[%emt 0:00:13]} Rc8 {[%emt 0:01:10]} 24. Qe4 {[%emt 0:05:37]} Rc5 {[%emt 0:02:04]} 25. Ng5 {[%emt 0:01:03]} Qxe5 {[%emt 0:05:58]} 26. Qxb7 {[%emt 0:03:28]} Nd6 {[%emt 0:04:30]} 27. Qxa7 {[%emt 0:00:41]} h6 {[%emt 0:00:36]} 28. Nf3 {[%emt 0:01:04]} Rc1+ {[%emt 0:00:11]} 29. Kh2 {[%emt 0:00:08]} Qc5 {[%emt 0:00:25]} 30. Qe7 {[%emt 0:01:26]} Rc2 {[%emt 0:01:14]} 31. Ne1 {[%emt 0:00:51]} Rxf2 {[%emt 0:01:17]} 32. Nd3 {[%emt 0:00:28]} Rxg2+ {[%emt 0:00:05]} 33. Kxg2 {[%emt 0:00:08]} Qd5+ {[%emt 0:00:03]} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "2.9"]
[White "Perdomo, Leandro"]
[Black "Moura, Eduardo Eugenio Chav"]
[Result "1-0"]
[ECO "A41"]
[WhiteElo "2474"]
[BlackElo "2098"]
[Annotator "ChessBase"]
[PlyCount "57"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} d6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} e5 {[%emt 0:00:00]} 3. Nf3 {[%emt 0:00:00]} Nd7 {[%emt 0:00:06]} 4. Nc3 {[%emt 0:00:00]} Ngf6 {[%emt 0:00:18]} 5. Bg5 {[%emt 0:00:00]} c6 {[%emt 0:01:40]} 6. e3 {[%emt 0:02:39]} Qa5 {[%emt 0:07:30]} 7. Qd2 {[%emt 0:17:06]} Be7 {[%emt 0:04:13]} 8. Bd3 {[%emt 0:01:00]} O-O {[%emt 0:03:27]} 9. O-O {[%emt 0:00:20]} Re8 {[%emt 0:18:02]} 10. Rfd1 {[%emt 0:23:22]} Bd8 {[%emt 0:19:38]} 11. Qc2 {[%emt 0:06:03]} Nf8 {[%emt 0:05:39]} 12. h3 {[%emt 0:03:03]} Ng6 {[%emt 0:07:22]} 13. d5 {[%emt 0:22:24]} c5 {[%emt 0:03:41]} 14. a3 {[%emt 0:04:15]} Nd7 {[%emt 0:09:31]} 15. Nb5 {[%emt 0:03:18]} Qb6 {[%emt 0:02:33]} 16. a4 {[%emt 0:02:14]} a5 {[%emt 0:00:19]} 17. Ra3 {[%emt 0:01:44]} Ndf8 {[%emt 0:02:20]} 18. Bxd8 {[%emt 0:07:10]} Qxd8 {[%emt 0:00:12]} 19. Nd2 {[%emt 0:00:26]} Ra6 {[%emt 0:05:32]} 20. Nf1 {[%emt 0:03:23]} Qe7 {[%emt 0:02:57]} 21. Ng3 {[%emt 0:00:56]} Nh4 {[%emt 0:00:50]} 22. Kh2 {[%emt 0:00:41]} g6 {[%emt 0:02:25]} 23. f4 {[%emt 0:00:02]} exf4 {[%emt 0:02:35]} 24. exf4 {[%emt 0:00:02]} f5 {[%emt 0:00:37]} 25. Rd2 {[%emt 0:00:56]} Qd8 {[%emt 0:00:30]} 26. Re2 {[%emt 0:00:13]} Bd7 {[%emt 0:00:17]} 27. Rxe8 {[%emt 0:00:32]} Bxe8 {[%emt 0:00:02]} 28. Qf2 {[%emt 0:01:06]} Ra8 {[%emt 0:01:06]} 29. Ne2 {[%emt 0:00:07]} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "2.10"]
[White "Pirola, Claudionor Alcides L"]
[Black "Matsuura, Everaldo"]
[Result "1/2-1/2"]
[ECO "B74"]
[WhiteElo "2106"]
[BlackElo "2448"]
[Annotator "NA RC"]
[PlyCount "77"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:13:41]} 2. Nc3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:53]} 3. Nf3 {[%emt 0:02:46]} g6 {[%emt 0:01:07]} 4. d4 {[%emt 0:00:49]} cxd4 {[%emt 0:00:11]} 5. Nxd4 {[%emt 0:00:04]} Bg7 {[%emt 0:00:18]} 6. Be3 {[%emt 0:01:41]} Nf6 {[%emt 0:00:13]} 7. Nb3 {[%emt 0:00:33]} O-O {[%emt 0:00:39]} 8. Be2 {[%emt 0:00:20]} d6 {[%emt 0:00:52]} 9. O-O {[%emt 0:00:19]} Be6 {[%emt 0:00:49]} 10. f4 {[%emt 0:02:14]} Qc8 {[%emt 0:00:43]} 11. Kh1 {[%emt 0:04:16]} Bg4 {[%emt 0:00:54]} 12. Bg1 {[%emt 0:08:00]} Rb8 {[%emt 0:04:55]} 13. Nd5 {[%emt 0:03:33]} Bxe2 {[%emt 0:01:04]} 14. Qxe2 {[%emt 0:00:09]} Qe6 {[%emt 0:02:24]} 15. Nxf6+ {[%emt 0:07:29]} Bxf6 {[%emt 0:00:22]} 16. c3 {[%emt 0:00:14]} b5 {[%emt 0:03:26]} 17. Qf3 {[%emt 0:24:38]} Rbc8 {[%emt 0:18:47]} 18. e5 Bg7 {[%emt 0:00:10]} 19. exd6 {[%emt 0:06:13]} Qxd6 {[%emt 0:00:30]} 20. Nc5 {[%emt 0:00:50]} Qc7 {[%emt 0:02:58]} 21. Rad1 {[%emt 0:03:32]} Rcd8 {[%emt 0:01:24]} 22. a4 {[%emt 0:06:57]} bxa4 {[%emt 0:03:25]} 23. Nxa4 {[%emt 0:01:05]} e6 {[%emt 0:07:45]} 24. Nc5 {[%emt 0:00:48]} Ne7 {[%emt 0:07:38]} 25. Ra1 {[%emt 0:06:19]} Nd5 {[%emt 0:08:50]} 26. Ra3 {[%emt 0:08:54]} a5 {[%emt 0:02:24]} 27. Rfa1 {[%emt 0:04:14]} Qxf4 {[%emt 0:09:46]} 28. Rxa5 {[%emt 0:01:38]} Qxf3 {[%emt 0:01:46]} 29. gxf3 {[%emt 0:00:01]} Nxc3 {[%emt 0:00:33]} 30. bxc3 {[%emt 0:02:21]} Bxc3 {[%emt 0:00:08]} 31. Ne4 {[%emt 0:00:13]} Bxa5 {[%emt 0:00:57]} 32. Rxa5 {[%emt 0:00:07]} Rd3 {[%emt 0:02:29]} 33. Kg2 {[%emt 0:00:45]} Rb8 {[%emt 0:00:41]} 34. Bc5 {[%emt 0:01:27]} Rdd8 {[%emt 0:03:42]} 35. Ra7 {[%emt 0:00:27]} Ra8 {[%emt 0:00:17]} 36. Rb7 {[%emt 0:00:39]} Rab8 {[%emt 0:00:26]} 37. Ra7 {[%emt 0:00:06]} Ra8 {[%emt 0:00:28]} 38. Rb7 {[%emt 0:00:03]} Rab8 {[%emt 0:00:14]} 39. Ra7 {[%emt 0:00:08]} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "2.11"]
[White "Molina, Roberto Junio Brito"]
[Black "Andrade, Roberto Luiz Costa"]
[Result "1-0"]
[ECO "A43"]
[WhiteElo "2448"]
[BlackElo "2087"]
[Annotator "NA"]
[PlyCount "59"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:09:04]} c5 {[%emt 0:00:41]} 2. d5 {[%emt 0:00:03]} Nf6 3. Nc3 {[%emt 0:00:08]} d6 {[%emt 0:02:12]} 4. e4 {[%emt 0:01:49]} g6 {[%emt 0:00:25]} 5. Be2 {[%emt 0:03:09]} Bg7 {[%emt 0:00:15]} 6. Nf3 {[%emt 0:00:04]} O-O {[%emt 0:00:27]} 7. O-O {[%emt 0:00:04]} Na6 {[%emt 0:01:32]} 8. Nd2 {[%emt 0:00:42]} Nc7 {[%emt 0:01:12]} 9. a4 {[%emt 0:00:24]} Rb8 {[%emt 0:02:06]} 10. Nc4 {[%emt 0:02:52]} b6 {[%emt 0:02:06]} 11. Bf4 {[%emt 0:02:44]} Nd7 {[%emt 0:02:49]} 12. Qd2 {[%emt 0:02:55]} Ne5 {[%emt 0:05:38]} 13. Bh6 {[%emt 0:04:47]} Nxc4 {[%emt 0:04:37]} 14. Bxc4 {[%emt 0:00:37]} a6 {[%emt 0:01:30]} 15. Bxg7 {[%emt 0:03:31]} Kxg7 {[%emt 0:00:03]} 16. f4 {[%emt 0:03:01]} b5 {[%emt 0:06:54]} 17. axb5 {[%emt 0:02:28]} axb5 {[%emt 0:00:47]} 18. Be2 {[%emt 0:00:19]} b4 {[%emt 0:01:08]} 19. Nd1 {[%emt 0:00:17]} Nb5 {[%emt 0:02:40]} 20. c3 {[%emt 0:08:53]} Qc7 {[%emt 0:07:03]} 21. Ne3 {[%emt 0:00:21]} Bd7 {[%emt 0:04:30]} 22. Bxb5 {[%emt 0:08:08]} Bxb5 {[%emt 0:00:38]} 23. c4 {[%emt 0:00:05]} Bd7 24. Rae1 {[%emt 0:00:56]} Ra8 {[%emt 0:14:23]} 25. h4 {[%emt 0:13:09]} Ra2 {[%emt 0:08:06]} 26. f5 {[%emt 0:03:12]} gxf5 {[%emt 0:15:26]} 27. exf5 {[%emt 0:01:09]} Rg8 {[%emt 0:02:24]} 28. Ng4 {[%emt 0:01:58]} Be8 {[%emt 0:04:35]} 29. Rxe7 {[%emt 0:00:26]} Qd8 {[%emt 0:02:51]} 30. Qh6+ {[%emt 0:01:14]} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "2.12"]
[White "Labussiere, Yago"]
[Black "Zambrana, Oswaldo"]
[Result "1/2-1/2"]
[ECO "A56"]
[WhiteElo "2091"]
[BlackElo "2445"]
[Annotator "NA"]
[PlyCount "120"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:36]} c5 {[%emt 0:00:02]} 3. Nf3 {[%emt 0:01:16]} e6 {[%emt 0:03:25]} 4. e3 {[%emt 0:04:15]} b6 {[%emt 0:01:29]} 5. Nc3 {[%emt 0:02:33]} Be7 {[%emt 0:00:15]} 6. d5 {[%emt 0:04:08]} exd5 {[%emt 0:04:36]} 7. cxd5 {[%emt 0:00:10]} d6 {[%emt 0:00:13]} 8. Bb5+ {[%emt 0:14:22]} Bd7 {[%emt 0:03:07]} 9. a4 {[%emt 0:02:14]} a6 {[%emt 0:00:03]} 10. Be2 {[%emt 0:06:43]} Bg4 {[%emt 0:11:55]} 11. Nd2 {[%emt 0:04:07]} Bxe2 {[%emt 0:00:57]} 12. Qxe2 {[%emt 0:00:08]} O-O {[%emt 0:00:15]} 13. O-O {[%emt 0:04:23]} Nbd7 {[%emt 0:07:36]} 14. e4 {[%emt 0:03:58]} Re8 {[%emt 0:00:30]} 15. Nc4 {[%emt 0:04:51]} Bf8 {[%emt 0:00:52]} 16. f3 {[%emt 0:02:15]} Ne5 {[%emt 0:04:50]} 17. Na3 {[%emt 0:05:10]} Qc7 {[%emt 0:01:37]} 18. b3 {[%emt 0:04:12]} c4 {[%emt 0:04:22]} 19. bxc4 {[%emt 0:23:37]} Rec8 {[%emt 0:01:36]} 20. Bd2 {[%emt 0:03:16]} Nxc4 {[%emt 0:00:31]} 21. Nxc4 {[%emt 0:00:32]} Qxc4 {[%emt 0:03:38]} 22. Rfc1 {[%emt 0:00:38]} Nd7 {[%emt 0:02:38]} 23. Kf1 {[%emt 0:02:20]} g6 {[%emt 0:02:20]} 24. Nd1 {[%emt 0:01:14]} Qxe2+ {[%emt 0:06:25]} 25. Kxe2 {[%emt 0:00:02]} Rxc1 {[%emt 0:01:40]} 26. Rxc1 {[%emt 0:04:52]} Nc5 {[%emt 0:00:07]} 27. Rc4 {[%emt 0:00:15]} Re8 {[%emt 0:04:24]} 28. Be3 f5 {[%emt 0:02:37]} 29. Nf2 {[%emt 0:01:48]} Bg7 {[%emt 0:01:49]} 30. Rb4 {[%emt 0:00:30]} Rb8 {[%emt 0:01:19]} 31. Bf4 {[%emt 0:00:31]} Bf8 {[%emt 0:03:10]} 32. Nd3 {[%emt 0:00:27]} fxe4 {[%emt 0:02:39]} 33. fxe4 {[%emt 0:00:24]} Re8 {[%emt 0:09:36]} 34. Ke3 {[%emt 0:00:20]} Nd7 {[%emt 0:00:01]} 35. Rc4 {[%emt 0:00:48]} Nf6 {[%emt 0:00:02]} 36. Kf3 {[%emt 0:00:18]} b5 {[%emt 0:07:29]} 37. axb5 {[%emt 0:00:16]} axb5 {[%emt 0:00:02]} 38. Rb4 {[%emt 0:00:20]} Rb8 {[%emt 0:00:02]} 39. Nc1 {[%emt 0:01:06]} Ne8 {[%emt 0:00:03]} 40. Ne2 {[%emt 0:00:30]} Nc7 {[%emt 0:00:19]} 41. Nd4 {[%emt 0:08:19]} Rb7 {[%emt 0:00:03]} 42. Ke3 {[%emt 0:06:23]} Kf7 {[%emt 0:00:02]} 43. Nc6 {[%emt 0:03:02]} Ke8 {[%emt 0:00:44]} 44. Rb1 {[%emt 0:04:59]} Rb6 {[%emt 0:04:46]} 45. Nb4 {[%emt 0:01:19]} Rb8 {[%emt 0:01:45]} 46. Rc1 {[%emt 0:02:23]} Kd7 {[%emt 0:00:48]} 47. Rxc7+ {[%emt 0:06:06]} Kxc7 {[%emt 0:00:03]} 48. Na6+ {[%emt 0:00:06]} Kb7 {[%emt 0:01:20]} 49. Nxb8 {[%emt 0:00:04]} Kxb8 {[%emt 0:00:12]} 50. Kd3 {[%emt 0:01:00]} Kb7 {[%emt 0:00:09]} 51. Kc3 {[%emt 0:01:48]} Kb6 {[%emt 0:00:19]} 52. Kb4 {[%emt 0:00:07]} Be7 {[%emt 0:00:27]} 53. h3 {[%emt 0:00:55]} h5 {[%emt 0:01:44]} 54. Be3+ {[%emt 0:00:28]} Ka6 {[%emt 0:00:03]} 55. Bf4 {[%emt 0:00:16]} Kb6 {[%emt 0:00:51]} 56. Bg3 {[%emt 0:00:46]} Ka6 {[%emt 0:01:31]} 57. Bf4 {[%emt 0:00:16]} Kb6 {[%emt 0:00:08]} 58. Bh2 {[%emt 0:00:41]} Ka6 {[%emt 0:00:09]} 59. Bg3 {[%emt 0:00:32]} Kb6 {[%emt 0:01:11]} 60. Bh2 {[%emt 0:00:00]} Ka6 {[%emt 0:00:14]} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "2.13"]
[White "Roselli Mailhe, Bernardo"]
[Black "Urquiza, Marcello de Albuquer"]
[Result "1-0"]
[ECO "D28"]
[WhiteElo "2442"]
[BlackElo "2075"]
[Annotator "NA"]
[PlyCount "25"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:21]} d5 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:18]} dxc4 {[%emt 0:00:00]} 3. Nf3 {[%emt 0:00:06]} Nf6 {[%emt 0:00:00]} 4. e3 {[%emt 0:00:04]} e6 {[%emt 0:00:00]} 5. Bxc4 {[%emt 0:00:23]} c5 {[%emt 0:00:24]} 6. O-O {[%emt 0:00:22]} a6 {[%emt 0:00:11]} 7. Qe2 {[%emt 0:00:20]} b5 {[%emt 0:00:57]} 8. Bd3 {[%emt 0:00:06]} cxd4 {[%emt 0:02:43]} 9. exd4 {[%emt 0:02:13]} Be7 {[%emt 0:00:15]} 10. a4 {[%emt 0:06:27]} bxa4 {[%emt 0:00:23]} 11. Nc3 {[%emt 0:03:15]} O-O {[%emt 0:07:04]} 12. Bg5 {[%emt 0:00:35]} Nc6 {[%emt 0:02:34]} 13. Bxf6 {[%emt 0:02:06]} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "2.14"]
[White "Torella, Rodolfo"]
[Black "Von Buelow, Georg"]
[Result "1-0"]
[ECO "B55"]
[WhiteElo "2085"]
[BlackElo "2363"]
[Annotator "NA"]
[PlyCount "35"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:07]} d6 {[%emt 0:00:21]} 3. d4 {[%emt 0:01:10]} cxd4 {[%emt 0:00:08]} 4. Nxd4 {[%emt 0:00:11]} Nf6 {[%emt 0:00:17]} 5. f3 {[%emt 0:02:52]} e5 {[%emt 0:01:21]} 6. Bb5+ {[%emt 0:01:55]} Nbd7 {[%emt 0:01:24]} 7. Nf5 {[%emt 0:02:02]} a6 {[%emt 0:00:55]} 8. Ba4 {[%emt 0:09:34]} d5 {[%emt 0:03:30]} 9. exd5 {[%emt 0:03:04]} b5 {[%emt 0:00:43]} 10. Bb3 {[%emt 0:00:53]} a5 {[%emt 0:04:00]} 11. a3 {[%emt 0:11:05]} Nc5 {[%emt 0:02:08]} 12. Ne3 {[%emt 0:00:35]} Nxb3 {[%emt 0:01:24]} 13. cxb3 {[%emt 0:00:04]} Bc5 {[%emt 0:04:29]} 14. Nc3 {[%emt 0:05:57]} Ba6 {[%emt 0:03:00]} 15. b4 {[%emt 0:07:15]} axb4 {[%emt 0:02:34]} 16. axb4 {[%emt 0:01:01]} Bxb4 {[%emt 0:03:55]} 17. Qb3 {[%emt 0:00:53]} Bc5 {[%emt 0:03:03]} 18. Rxa6 {[%emt 0:01:28]} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "2.15"]
[White "Limp, Eduardo Thelio"]
[Black "Sobrero, Sebastian"]
[Result "1-0"]
[ECO "B06"]
[WhiteElo "2356"]
[BlackElo "2059"]
[Annotator "NA"]
[PlyCount "77"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} g6 {[%emt 0:02:18]} 2. e4 {[%emt 0:00:12]} Bg7 {[%emt 0:00:25]} 3. Nf3 {[%emt 0:00:11]} d6 {[%emt 0:03:02]} 4. c3 {[%emt 0:00:35]} Nf6 {[%emt 0:02:46]} 5. Nbd2 {[%emt 0:00:17]} O-O {[%emt 0:04:14]} 6. Be2 {[%emt 0:00:54]} c5 {[%emt 0:02:12]} 7. dxc5 {[%emt 0:04:40]} dxc5 {[%emt 0:00:13]} 8. O-O {[%emt 0:00:09]} Nc6 {[%emt 0:05:13]} 9. Qc2 {[%emt 0:00:12]} Qc7 {[%emt 0:02:00]} 10. a4 {[%emt 0:01:07]} Nh5 {[%emt 0:03:55]} 11. g3 {[%emt 0:00:28]} Bg4 {[%emt 0:06:38]} 12. Nc4 {[%emt 0:03:36]} Rad8 {[%emt 0:05:37]} 13. Ne3 {[%emt 0:11:13]} Bh3 {[%emt 0:02:17]} 14. Re1 {[%emt 0:01:06]} h6 {[%emt 0:00:22]} 15. Nd5 {[%emt 0:07:40]} Qc8 {[%emt 0:00:30]} 16. Nd2 {[%emt 0:01:28]} Bg4 {[%emt 0:07:23]} 17. Nc4 {[%emt 0:01:16]} Bxe2 {[%emt 0:01:28]} 18. Qxe2 {[%emt 0:00:55]} Qh3 {[%emt 0:04:19]} 19. Be3 {[%emt 0:06:43]} e6 {[%emt 0:04:37]} 20. Nf4 {[%emt 0:04:30]} Nxf4 {[%emt 0:00:10]} 21. Bxf4 {[%emt 0:00:15]} e5 {[%emt 0:06:10]} 22. Be3 {[%emt 0:00:38]} b6 {[%emt 0:02:24]} 23. a5 {[%emt 0:00:40]} Rb8 {[%emt 0:01:24]} 24. axb6 {[%emt 0:04:51]} axb6 {[%emt 0:00:08]} 25. Ra6 {[%emt 0:03:23]} f5 {[%emt 0:03:42]} 26. Rxb6 {[%emt 0:05:04]} Rxb6 {[%emt 0:00:36]} 27. Nxb6 {[%emt 0:00:09]} f4 {[%emt 0:03:05]} 28. Bxc5 {[%emt 0:00:10]} Rf7 {[%emt 0:08:01]} 29. Nd5 {[%emt 0:08:56]} Nd8 {[%emt 0:01:17]} 30. Qf1 {[%emt 0:01:09]} Qh5 {[%emt 0:01:51]} 31. Be7 {[%emt 0:04:41]} Ne6 {[%emt 0:03:04]} 32. Qg2 {[%emt 0:01:26]} f3 {[%emt 0:04:49]} 33. g4 {[%emt 0:02:11]} fxg2 {[%emt 0:01:11]} 34. gxh5 {[%emt 0:00:08]} gxh5 {[%emt 0:00:42]} 35. Kxg2 {[%emt 0:00:20]} Nf4+ {[%emt 0:01:27]} 36. Nxf4 {[%emt 0:00:13]} exf4 {[%emt 0:01:57]} 37. Bd6 {[%emt 0:00:16]} Rb7 {[%emt 0:00:56]} 38. Re2 {[%emt 0:00:39]} Rf7 {[%emt 0:00:51]} 39. Kf3 {[%emt 0:00:15]} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "2.16"]
[White "Silva, Kaua Marques"]
[Black "Ambartsumova, Karina"]
[Result "0-1"]
[ECO "B43"]
[WhiteElo "2082"]
[BlackElo "2341"]
[Annotator "NA"]
[PlyCount "32"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. d4 cxd4 {[%emt 0:02:28]} 5. Nxd4 {[%emt 0:04:30]} b5 {[%emt 0:00:14]} 6. a3 {[%emt 0:01:09]} Bb7 {[%emt 0:02:21]} 7. Bd3 {[%emt 0:07:27]} Qb6 8. Nde2 Nf6 {[%emt 0:05:43]} 9. O-O {[%emt 0:01:46]} Qc7 {[%emt 0:03:57]} 10. h3 {[%emt 0:03:40]} Be7 {[%emt 0:04:32]} 11. Bg5 {[%emt 0:10:42]} d5 {[%emt 0:15:34]} 12. Ng3 {[%emt 0:06:50]} h6 {[%emt 0:04:27]} 13. Bd2 {[%emt 0:05:03]} Nbd7 {[%emt 0:01:04]} 14. Qe2 {[%emt 0:03:04]} O-O {[%emt 0:08:37]} 15. f4 {[%emt 0:03:55]} Nc5 {[%emt 0:02:08]} 16. Rae1 {[%emt 0:02:43]} Rfe8 {[%emt 0:08:14]} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.09"]
[Round "3.1"]
[White "Martinez Alcantara, Jose Eduardo"]
[Black "Limp, Eduardo Thelio"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2592"]
[BlackElo "2356"]
[Annotator "TA"]
[PlyCount "113"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,113,37,15,22,28,29,13,30,28,42,47,46,38,41,52,31,40,95,95,95,93,87,97,80,85,82,85,85,85,85,77,82,82,83,83,82,82,91,91,93,91,91,20,84,86,92,10,15,8,19,0,0,0,0,7,14,0,0,0,7,0,7,5,20,1,12,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,29,8,8,8,29,0,0,0,52,52,55,54,73,69,98,93,87,94,29977,29975]} 1. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. c4 g6 5. b3 Bg7 6. Bb2 O-O 7. O-O a5 8. Na3 Na6 {A11: English Opening: 1...c6} 9. d3 a4 10. Nc2 Qb6 {The position is equal.} 11. Bd4 $146 ({Predecessor:} 11. Rb1 axb3 12. axb3 Bd7 13. Ne5 Rfd8 14. Bd4 Qc7 15. Qc1 Be8 16. Nf3 Nh5 17. Bxg7 Nxg7 {1-0 (76) Matamoros Franco,C (2525)-Sasikiran,K (2694) Beijing 2008}) 11... c5 12. Be5 axb3 13. axb3 Bd7 14. Qd2 Bc6 15. Rab1 Nd7 ({Black should play} 15... Rfd8 $14) 16. Bxg7 $16 Kxg7 17. b4 Nxb4 18. Nxb4 cxb4 19. Rxb4 Qa5 20. Qb2+ Nf6 21. Ne5 Qa3 22. cxd5 Qxb2 23. Rxb2 Nxd5 24. Rc1 Ra6 25. Rbc2 Nb4 26. Rc4 Bxg2 27. Kxg2 Nc6 28. Nd7 (28. Nxc6 $16 bxc6 29. Rxc6 Rxc6 30. Rxc6) 28... Rd8 (28... Rfa8 $11) 29. Nc5 $1 {[%csl LRa6,LRb7][%mdl 64] [#] Double Attack} Rb6 30. R1c2 (30. Nxb7 $1 $16 Rxb7 31. Rxc6) 30... Nd4 31. Ra2 Nf5 32. Na4 (32. Ne4 {seems wilder.} Nd4 33. Rd2 Ne6 34. h4 Rb1 35. Ra2) 32... Ra6 {aiming for ...Rda8.} 33. Nc3 Rxa2 34. Nxa2 $11 {[%mdl 4096] Endgame KRN-KRN} Nd6 35. Rb4 Rc8 {Threatening ...Rc2.} 36. Rb2 h5 37. Nb4 e6 38. Nc2 b5 39. h4 Kf6 40. Nd4 e5 41. Nc2 Ke6 42. Kf1 Ra8 43. Ke1 Ra4 44. e4 f5 45. f3 Ra8 46. Ke2 Ra4 47. Nb4 Ra7 48. Rc2 Ra4 49. Nd5 Ra7 50. Rc6 Kd7 51. Rc5 (51. Rb6 {keeps more tension.} Ra2+ 52. Ke3 Rg2 53. Nf6+ Kc7 54. Nd5+) 51... fxe4 ({Black should try} 51... Ra2+ $1 $11 52. Ke3 Rg2) 52. fxe4 $14 Ke6 53. Nb4 Rb7 54. Ke3 Nf7 55. Rc6+ Nd6 56. d4 Rb6 $2 {[%mdl 8192] [#]} (56... exd4+ $16 57. Kxd4 Kd7) 57. Rxb6 {Accuracy: White = 63%, Black = 43%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.09"]
[Round "3.2"]
[White "Ambartsumova, Karina"]
[Black "Supi, Luis Paulo"]
[Result "0-1"]
[ECO "E15"]
[WhiteElo "2341"]
[BlackElo "2578"]
[Annotator "TA"]
[PlyCount "182"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,208,-23,-33,0,-30,-13,-14,0,0,0,0,0,5,12,0,2,0,31,-5,-1,-18,18,13,7,11,37,30,33,20,22,11,5,6,0,5,8,0,0,0,0,0,0,-6,0,-10,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-4,0,0,0,0,-3,-4,0,0,0,-6,0,-4,-2,-2,0,-5,0,0,0,-18,-12,-12,0,-18,-18,-19,-19,-27,0,-27,0,-27,-18,-27,0,-27,-19,-19,-19,-20,-28,-37,-35,-53,0,-37,-16,-39,-22,-31,-8,-46,-25,-48,-44,-86,-19,-24,-24,-12,-9,-34,-45,-138,-141,-161,-124,-144,-102,-166,-156,-198,-203,-244,-251,-227,-231,-231,-102,-204,-216,-217,-229,-300,-352,-405,-393,-375,-330,-568,-565,-552,-538,-561,-528,-556,-556,-555,-547,-526,-145,-145,0,-450,-451,-526,-495,-3066,-704,-29962,-29964,-29964,-29966,-29968,-29969,-29972,-29973,-29973,-29974,-29979,-29980,-29980,-29981,-29981,-29982,-29982,-29983,-29982,-29983]} 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Nc3 d5 8. Bg2 c6 9. cxd5 cxd5 10. Ne5 O-O 11. O-O Bb7 {E15: Queen's Indian: 4 g3 sidelines, 4 g3 Ba6 and 4 g3 Bb7 early deviations} 12. Rc1 Nbd7 (12... Nfd7 13. f4 Nxe5 14. fxe5 Nc6 15. Be3 Rc8 16. Nb1 f6 17. exf6 Bxf6 18. Qd2 Qe7 19. Nc3 {½-½ (48) Hayrapetyan,H (2489)-Petrosyan,M (2466) Yerevan 2016}) 13. Bf4 Nh5 {The position is equal.} 14. Be3 Bd6 $146 ({Predecessor:} 14... Rc8 15. g4 Nhf6 16. h3 Nxe5 17. dxe5 Nd7 18. Bd4 f6 19. exf6 Bxf6 {0-1 (48) Kuempers,U (2127)-Lodde,M (1935) Germany 2006}) 15. f4 Rc8 16. Qd3 Bb8 17. Rc2 Nhf6 18. Rfc1 Qe7 19. Nd1 Rxc2 20. Rxc2 Nxe5 21. dxe5 Nd7 22. Nf2 Nc5 23. Qc3 {[%cal Re3c5]} Na6 24. Nd3 Qd7 25. Bd4 Rc8 26. Qd2 Rxc2 27. Qxc2 Bc7 28. e3 Bd8 29. Bf1 Be7 30. Be2 Nb8 31. Bf1 Nc6 32. Be2 Nxd4 33. exd4 g6 34. Nc1 f5 35. Bd3 Kf7 36. Ne2 Ke8 37. Qc1 Kd8 38. Kf2 Qe8 39. Nc3 Qc6 40. Ne2 Qd7 41. Nc3 Bb4 42. Ne2 Qe7 43. Qc2 Ba5 44. Qb2 Bb4 45. Qc2 a6 46. Qc1 Ba3 47. Qc3 Bb4 48. Qc1 b5 49. Qb2 Bc6 50. Qc1 Kc7 51. Qb2 Kb7 52. Qc1 Be8 53. Qb2 Ba3 54. Qd2 Bb4 55. Qb2 Qf8 56. Qc1 Ba3 57. Qd2 Be7 58. Qc1 Bd7 59. Qd2 h6 60. Qc2 g5 61. Qc1 Ba3 62. Qd2 Be7 63. Qc1 Be8 64. Qc2 Bb4 65. Qc1 Qe7 66. Qc2 Bh5 67. Qc1 Ba5 68. a4 Be8 ({Black should try} 68... bxa4 $17 69. bxa4 Qb4) 69. axb5 axb5 70. fxg5 hxg5 71. Qe3 Bd8 72. Kg2 (72. Qc1 $15) 72... Qb4 $17 73. Bc2 Qe1 {White must now prevent ...Bh5.} 74. Qd3 Kb6 75. Nc3 (75. h3 $17 {is a better defense.}) 75... Be7 76. Nd1 Bb4 {And now ...Bh5 would win.} 77. Qe3 Qxe3 78. Nxe3 $19 {[%mdl 4096] Endgame [#] KBB-KBN} Bd2 $1 {[%cal Rd2e3]} 79. Kf2 Bh5 (79... Ka5 $19 {is more deadly. Strongly threatening ...Bc3.} 80. Ke2 Bc1) 80. Bd3 (80. g4 $17 fxg4 81. Bh7) 80... Ka5 81. Nc2 Bd1 82. Na3 b4 ({Less strong is} 82... Bxb3 83. Nxb5 Ba4 84. Nc7 $11) 83. Nc2 g4 84. Kg2 Kb6 85. h3 $2 (85. Kf2 {was called for.}) 85... gxh3+ 86. Kxh3 Kc7 87. Kg2 Kd7 88. Na1 Bc3 89. Nc2 Ke7 90. Kf2 Bd2 $2 (90... Kf8 $19 91. Kg2 Ke7) 91. Na1 $17 {[#]} Bh5 {Played: Bd2-c3} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "3.3"]
[White "Cruz, Cristhian"]
[Black "Aranha Filho, Alvaro Z."]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "2562"]
[BlackElo "2304"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,61,0,0,0,20,15,14,-1,0,0,0,0,0,0,39,10,22,22,38,40,52,69,69,54,75,82,119,109,139,135,156,163,142,146,153,152,147,138,383,383,383,383,383,383,383,382,383,372]} 1. c4 e6 2. Nf3 Nf6 3. Nc3 d5 4. e3 Be7 5. d4 O-O 6. Bd3 dxc4 7. Bxc4 c5 8. O-O a6 9. dxc5 {D37: Queen's Gambit Declined: 5 Bf4} (9. Qe2 b5 10. Bb3 Bb7 11. Rd1 Nbd7 12. e4 b4 13. d5 bxc3 14. dxe6 fxe6 15. Ng5 Qb6 16. Bxe6+ Kh8 17. Bxd7 h6 18. Ne6 Rf7 19. bxc3 Bxe4 {1-0 (39) Cori Tello,J (2657)-Rambaldi,F (2574) Saint Louis 2017}) 9... Qxd1 10. Rxd1 Bxc5 11. Bd3 {The position is equal.} b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 12. a4 $146 ({Predecessor:} 12. Ne4 Be7 13. Bd2 Bb7 14. Nxf6+ Bxf6 15. Nd4 Nd7 16. Rac1 Rac8 {½-½ (27) Nyffeler,H (2031)-Gross Winter,G (2091) GER email 2013}) 12... b4 $1 {[%cal Rb4c3]} 13. Ne4 Be7 14. Bd2 Nbd7 15. Rac1 a5 16. Nd4 $36 {[%mdl 2048] White fights for an advantage.} Ba6 17. Nc6 Bxd3 18. Nxe7+ Kh8 19. Nd6 {[%cal Be4d6,Bd6f7,Bf7e5][%mdl 32]} Be2 20. Re1 Bd3 21. e4 Ra6 22. Nc6 Nb8 23. Nxf7+ $1 Kg8 24. Nfe5 {[#] Intending Ne7+ and mate.} Nxc6 25. Nxd3 Nd4 26. Be3 Rd8 $2 (26... Nb3 $16) 27. Bxd4 $18 {[%mdl 64] [#] Overworked Piece. White is winning.} Rxd4 28. Rc8+ Kf7 29. Ne5+ Ke7 30. Nc6+ Kd7 31. Rd8+ {Accuracy: White = 70%, Black = 32%.} ({Weaker is} 31. Nxd4 Kxc8 32. Rc1+ Kd8 $18) 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "3.4"]
[White "Labussiere, Victor"]
[Black "Hernandez Guerrero, Gilberto"]
[Result "1/2-1/2"]
[ECO "E91"]
[WhiteElo "2295"]
[BlackElo "2554"]
[Annotator "TA"]
[PlyCount "32"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,32,93,77,81,47,83,73,79,66,73,70,99]} 1. Nf3 d6 2. d4 Nf6 3. c4 g6 4. Nc3 Bg7 5. e4 O-O 6. Be2 c6 7. O-O e5 8. d5 Na6 9. Be3 Ng4 10. Bg5 f6 11. Bh4 c5 12. Ne1 Nh6 {E94: King's Indian: Classical: 6 Be2 e5 7 0-0: Various Black 7th moves} 13. Nd3 (13. Nc2 Nf7 14. a3 b6 15. b4 Bd7 16. Rb1 Bh6 17. Bg4 Bg5 18. Bxd7 Qxd7 19. Bxg5 fxg5 20. Ne3 {1-0 (52) Korobov,A (2698)-Demchenko,A (2679) St Petersburg 2018}) 13... Nf7 14. Bg4 Qe8 $146 ({Predecessor:} 14... h5 15. Bxc8 Rxc8 16. f4 Nb4 17. f5 g5 18. Be1 g4 19. Nf2 Ng5 20. a3 {1-0 (41) Ostenstad,B (2465)-Kazakov,M (2415) Gausdal 1997}) 15. Bxc8 Qxc8 16. f3 Nb4 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "3.5"]
[White "Rangel, Daniel"]
[Black "Diamant, Andre"]
[Result "1/2-1/2"]
[ECO "A10"]
[WhiteElo "2258"]
[BlackElo "2533"]
[Annotator "RC"]
[PlyCount "78"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. c4 {[%emt 0:00:00]} g6 {[%emt 0:00:00]} 2. g3 {[%emt 0:00:00]} Bg7 {[%emt 0:00:00]} 3. Bg2 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 4. Nc3 {[%emt 0:00:00]} O-O {[%emt 0:00:19]} 5. e4 {[%emt 0:00:04]} d6 {[%emt 0:00:39]} 6. Nge2 {[%emt 0:00:07]} c5 {[%emt 0:00:20]} 7. O-O {[%emt 0:00:15]} Nc6 {[%emt 0:00:05]} 8. d3 {[%emt 0:00:31]} Ne8 {[%emt 0:00:14]} 9. Be3 {[%emt 0:01:04]} Nc7 {[%emt 0:00:05]} 10. d4 {[%emt 0:00:16]} cxd4 {[%emt 0:00:02]} 11. Nxd4 {[%emt 0:00:06]} Ne6 {[%emt 0:00:04]} 12. Nde2 {[%emt 0:00:14]} Nc5 {[%emt 0:02:13]} 13. Rb1 {[%emt 0:04:53]} a5 {[%emt 0:01:32]} 14. Qd2 {[%emt 0:07:12]} a4 {[%emt 0:16:49]} 15. b4 {[%emt 0:17:27]} axb3 {[%emt 0:01:59]} 16. axb3 {[%emt 0:00:06]} Qa5 {[%emt 0:03:20]} 17. e5 {[%emt 0:11:01]} Qd8 {[%emt 0:15:16]} 18. exd6 {[%emt 0:01:44]} exd6 {[%emt 0:00:49]} 19. b4 {[%emt 0:07:27]} Ne6 {[%emt 0:02:33]} 20. Ne4 {[%emt 0:08:31]} Ne5 {[%emt 0:07:12]} 21. Nxd6 {[%emt 0:01:08]} Ng4 {[%emt 0:00:30]} 22. Nxb7 {[%emt 0:05:40]} Qc7 {[%emt 0:01:53]} 23. Nd6 {[%emt 0:04:26]} Nxe3 {[%emt 0:01:08]} 24. Qxe3 {[%emt 0:02:11]} Ra2 {[%emt 0:00:23]} 25. Nxc8 {[%emt 0:03:27]} Rxc8 {[%emt 0:00:27]} 26. c5 {[%emt 0:00:50]} Qe5 {[%emt 0:01:12]} 27. Qxe5 {[%emt 0:01:10]} Bxe5 {[%emt 0:00:02]} 28. Nc1 {[%emt 0:01:10]} Rd2 {[%emt 0:01:43]} 29. Nb3 {[%emt 0:01:29]} Ra2 {[%emt 0:00:03]} 30. c6 {[%emt 0:08:18]} Rb8 {[%emt 0:00:34]} 31. Nc1 {[%emt 0:01:47]} Rc2 {[%emt 0:00:49]} 32. Nd3 {[%emt 0:01:57]} Bd4 {[%emt 0:00:21]} 33. b5 {[%emt 0:03:09]} Rc3 {[%emt 0:01:01]} 34. Nf4 {[%emt 0:01:29]} Nxf4 {[%emt 0:01:34]} 35. gxf4 {[%emt 0:00:02]} Rc2 {[%emt 0:00:06]} 36. Rbc1 {[%emt 0:04:17]} Bxf2+ {[%emt 0:00:19]} 37. Kh1 {[%emt 0:00:01]} Rxc1 {[%emt 0:00:07]} 38. Rxc1 {[%emt 0:00:05]} Bb6 {[%emt 0:00:18]} 39. c7 {[%emt 0:00:16]} Rc8 {[%emt 0:00:04]} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "3.6"]
[White "Vazquez, Guillermo"]
[Black "Mascarenhas, Alberto Pinheiro"]
[Result "1-0"]
[ECO "B33"]
[WhiteElo "2506"]
[BlackElo "2221"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,79,20,27,25,23,40,34,47,35,51,20,55,52,48,43,48,70,66,57,65,56,55,11,55,43,147,150,141,135,139,125,127,124,147,82,370,358,342,193,209,206,233,52,44,0,1715,1666,1547,1296,1160,548,820,784,677,627,926,770,12838,12838]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c3 O-O 12. h4 Be6 {B33: Sicilian: Pelikan and Sveshnikov Variations} (12... Bxh4 $6 13. Qh5 $16) 13. Nc2 Bxd5 (13... Bxh4 $2 14. Qh5 $18) 14. Qxd5 Ne7 {White is slightly better.} 15. Qd3 d5 16. g3 $146 ({Predecessor:} 16. O-O-O Qa5 17. exd5 Qxa2 18. g3 Nc8 19. d6 Nxd6 20. Qxd6 {1-0 (45) Bures,J (2446)-Gerasimchuk,V (2474) ICCF email 2008}) 16... Re8 17. Bg2 {[%cal Re4d5]} dxe4 18. Qxe4 Rb8 19. O-O Qb6 20. Rfd1 Red8 21. Ne3 h5 22. Qb4 a5 23. Qb3 Qc5 (23... a4 $14 24. Qc2 g6) 24. Rxd8+ $16 Rxd8 25. Rd1 Rb8 26. Rd7 $36 {[%mdl 2048] Strongly threatening Nd5. White has strong initiative.} g6 27. Nd5 Kg7 28. a4 (28. a3 $142) 28... b4 $2 {[%mdl 8192]} (28... Nxd5 $16 29. Qxd5 (29. Bxd5 Be7 $16) 29... Be7) 29. cxb4 $1 $18 (29. Nxf6 Kxf6 30. c4 Ke6 $16) 29... axb4 {[#]} 30. Be4 ({Weaker is} 30. Nxf6 Kxf6 31. Bb7 Rf8 $16) (30. a5 $142 $1 {[%mdl 512]} e4 (30... Qxa5 31. Nxe7) 31. Nxf6 Kxf6 32. a6 (32. Bxe4 Qxa5 33. Qf3+ Nf5 $16)) 30... Nxd5 31. Bxd5 ({Much less strong is} 31. Rxd5 $6 Qc1+ 32. Kg2 Qe1 $16) 31... Be7 {[#]} 32. a5 $2 (32. Qf3 $1 $18 {[%cal Rf3f7]} Rf8 {[#]} 33. a5 $1 {[%mdl 512]}) 32... Rd8 $14 33. Qa4 {a6 is the strong threat.} Qd4 $2 {[%mdl 8192]} (33... Rxd7 $11 34. Qxd7 Qxa5) 34. Rxd8 $18 {White is clearly winning.} Bxd8 {[#]} 35. Qd7 $1 {[%csl LRd8,LRf7][%mdl 576] Double Attack} Be7 36. Qxe7 (36. a6 $142) 36... Qd1+ 37. Kh2 Qxd5 38. Qxb4 Qf3 39. Qc5 f6 40. a6 {Accuracy: White = 52%, Black = 40%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "3.7"]
[White "Gauche, Charles"]
[Black "Di Berardino, Diego Rafael"]
[Result "1/2-1/2"]
[ECO "A36"]
[WhiteElo "2248"]
[BlackElo "2489"]
[Annotator "TA"]
[PlyCount "98"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,98,-4,-1,-15,-11,-17,0,0,0,0,6,-8,0,0,0,0,9,-17,-2,-17,-12,-22,-16,-23,-16,-16,0,-54,-46,-49,-52,-72,-54,-72,-72,-72,-72,-72,-72,-72,-72,-72,-72,-72,-72,-72,-72,-72,-72,-72,-72,-72,-70,-70,-70,-70,-70,-70,-70,-77,-77,-77,-48,-48,-48,-48,-48,-48,-48,-48,-48,-48,-48,-48,-48,-48,-48,-48,0,-48,0]} 1. c4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. d3 d6 6. e4 e6 7. Nge2 Nge7 8. Be3 Nd4 9. O-O O-O 10. Qd2 Rb8 11. Bg5 {A36: Symmetrical English vs ...g6: 4 Bg2 Bg7} (11. Bh6 Bxh6 12. Qxh6 Nxe2+ 13. Nxe2 b5 14. b3 Nc6 15. f4 Nd4 16. Nxd4 cxd4 17. g4 f5 18. exf5 exf5 {½-½ (18) Miezis,N (2547)-Leko,P (2720) Porto Carras 2011}) 11... f6 $146 ({Predecessor:} 11... b6 12. Nxd4 cxd4 13. Ne2 Qd7 14. Bh6 e5 15. Bxg7 Kxg7 16. b4 Bb7 17. a4 f5 18. Bh3 Qc7 {0-1 (60) Eliet,N (2454)-Michiels,B (2454) Charleroi 2007}) 12. Bh6 Nec6 13. Bxg7 {The position is equal.} Kxg7 14. Nxd4 Nxd4 15. Ne2 (15. f4 {feels hotter.} b5 16. Rae1 Bd7 17. Rf2 b4 18. Ne2) 15... Nxe2+ 16. Qxe2 e5 17. f4 Bd7 18. h3 Qe7 19. Rae1 b5 20. Qd2 a5 {[%cal Ba7a5,Ba5a4][%mdl 32]} 21. Rf2 a4 22. f5 g5 23. Rc1 ({White should try} 23. Bf3 $11) 23... Be8 24. Bf3 h5 25. h4 {White wants to play hxg5.} g4 26. Bg2 Bf7 27. Bf1 Rb6 28. Rc2 Rfb8 29. Qc1 Qb7 30. Bg2 Qa8 31. Qe1 Qa6 32. Bf1 Be8 33. Bg2 Bc6 34. Kh2 Ra8 35. Kg1 Qa5 (35... b4 {seems wilder.} 36. Rcd2 Rbb8 37. Rd1 a3 38. b3 Qa5) 36. Qxa5 Rxa5 37. Kf1 Kf7 38. Ke1 Ke7 39. Kd1 Ra8 40. Kc1 bxc4 41. dxc4 Rb4 42. Rfd2 Kd7 43. Rc3 Kc7 44. a3 Rb6 45. Rcd3 Bb7 46. Rc3 Rb8 47. Rdc2 Bc6 48. Rd2 Bb7 49. Rdc2 Bc6 {Accuracy: White = 56%, Black = 73%.} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "3.8"]
[White "Galego, Luis"]
[Black "Torella, Rodolfo"]
[Result "1-0"]
[ECO "B08"]
[WhiteElo "2483"]
[BlackElo "2085"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,83,23,37,18,22,18,35,38,58,47,76,-4,67,74,80,79,87,91,83,77,87,80,72,83,205,193,313,310,318,275,272,273,280,279,276,267,309,297,372,317,327,310,423,404,418,277,308,260,236,251,518,518,735,635,616,614,747,744,741,575,1024,1003,2547,741,733,733,727,725,711,698,944,944,922,871,981,980]} 1. e4 d6 2. Nf3 Nf6 3. Nc3 g6 4. d4 Bg7 5. h3 c6 6. a3 {B08: Pirc Defence: Classical System} (6. Bd3 O-O 7. O-O Re8 8. Bf4 Qb6 9. Rb1 Nbd7 10. e5 dxe5 11. dxe5 Nd5 12. Nxd5 cxd5 13. Qd2 Nc5 14. Rfe1 Nxd3 15. cxd3 {1-0 (67) Hovhannisyan,R (2637)-Aronian,L (2765) St Petersburg 2018}) 6... O-O 7. Be3 Qa5 {With the idea ...Nxe4.} 8. Nd2 $146 {White is slightly better.} ({Predecessor:} 8. Qd2 Nbd7 9. Bc4 b5 10. b4 Qc7 11. Bb3 a5 12. O-O Bb7 13. bxa5 Qxa5 14. e5 Nd5 15. Nxd5 Qxd2 16. Nxe7+ Kh8 17. Bxd2 Rfe8 18. exd6 {1-0 (18) Meloni,M-Albertini,M Italy 1997}) 8... b5 9. Be2 e5 10. O-O (10. dxe5 $16 dxe5 11. b4) 10... a6 ({Black should try} 10... exd4 $1 $11 11. Bxd4 Nbd7) 11. dxe5 $14 dxe5 12. a4 $36 {[%mdl 2048] Hoping for axb5. White has strong initiative.} b4 13. Nc4 Qc7 14. Na2 {[%cal Bc3a2,Ba2c1,Bc1b3,Bb3d2,Bd2e4][%mdl 32]} c5 15. Qd6 Qxd6 16. Nxd6 Nbd7 (16... Rd8 $16) 17. a5 $18 Rb8 (17... Ne8 $142) 18. Nc1 Rd8 19. Nb3 Bf8 20. Nxc8 Rdxc8 21. Bxa6 Rc7 22. Nd2 c4 23. Bxc4 Nxe4 {[#]} 24. Bxf7+ $1 {[%mdl 512]} Kxf7 25. Nxe4 Rxc2 26. Rfd1 Ke8 27. b3 Nc5 28. Nxc5 Bxc5 29. Rd5 Be7 $2 (29... Bxe3 {keeps fighting.} 30. fxe3 (30. Rxe5+ Kd7 $18) 30... Rd8 31. Rxe5+ Kf7) 30. a6 {[%cal Ba5a6,Ba6a7][%mdl 32] White is clearly winning.} Rc3 31. a7 Ra8 32. Rxe5 Kf7 33. Rb5 Bd6 34. Rd1 Ke7 35. Rb7+ Rc7 36. Rxc7+ (36. Bg5+ $142 Ke6 {[#]} 37. Rxd6+ $1 {[%mdl 576] Remove Defender} Kxd6 38. Bf4+ {[%mdl 64] Skewer} Kd5 39. Rxc7) 36... Bxc7 {[%mdl 4096] Endgame KRB-KRB} 37. Bc5+ Ke6 38. g3 Be5 39. h4 Bc3 40. Rd6+ Ke5 41. Rd7 h5 42. Bb6 {Accuracy: White = 78%, Black = 24%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "3.9"]
[White "Terao, Juliana Sayumi"]
[Black "Molina, Roberto Junio Brito"]
[Result "1/2-1/2"]
[ECO "C09"]
[WhiteElo "2225"]
[BlackElo "2448"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,86,22,22,28,25,23,22,45,48,51,49,39,22,40,48,44,24,28,2,54,-6,28,25,34,38,39,38,37,37,46,33,36,38,38,38,37,31,36,34,30,35,37,25,37,30,42,37,42,27,42,15,30,23,21,5,19,28,27,31,38,38,38,40,42,39,39,0,8,0,36,0,10,0,47,-51,121]} 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nc6 6. Bb5 Qe7+ 7. Be2 Qc7 {C09: French Tarrasch: 3...c5 4 exd5 exd5 5 Ngf3 Nc6} 8. O-O Nf6 9. Re1 Be7 {The position is equal.} (9... cxd4 10. Bb5+ Be7 11. Nxd4 O-O 12. N2f3 Nxd4 13. Nxd4 Bc5 14. c3 Qb6 15. a4 {½-½ (41) Timofeev,A (2602)-Zvjaginsev,V (2635) Sochi 2019}) 10. dxc5 Bxc5 11. Nb3 Be7 12. c3 O-O 13. Bg5 Be6 14. Nbd4 Rae8 15. Bd3 $146 ({Predecessor:} 15. Qb3 Ne4 16. Bxe7 Rxe7 {½-½ (25) Mazarov,J (2075)-Neuer,T (2111) Germany 2017}) 15... Bd8 (15... Nxd4 $11 16. cxd4 (16. Nxd4 Ng4 $15) 16... h6) 16. Qc2 (16. Qd2 $14) 16... h6 {[#] And now ...Nxd4 would win.} 17. Bh4 Nh5 18. Bxd8 Nxd8 19. Re3 Nf6 20. Rae1 Bd7 21. Qd1 Rxe3 22. Rxe3 Re8 23. Qe1 Nc6 24. h3 Kf8 25. Bc2 Qd6 26. Rxe8+ Nxe8 27. Qe3 Qe7 28. Qd2 Nf6 29. Ne2 Na5 30. b3 Nc6 31. Nf4 Qc5 32. b4 Qd6 33. Qe3 b6 34. Bb3 Be6 35. Nd4 {Threatens to win with Qg3.} Nxd4 36. Qxd4 Ke7 37. a3 g5 38. Ne2 Bd7 39. Ng3 Be6 40. Ne2 Bd7 41. Ng3 Be6 42. Ne2 Ne4 43. f4 (43. Bc2 $14) 43... Bf5 $2 {Accuracy: White = 52%, Black = 64%.} (43... gxf4 $15 {keeps the upper hand.} 44. Bc2 {[#]} f3 $1 {[%mdl 512]} 45. gxf3 Ng5) 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "3.10"]
[White "Coelho, Ramyres Santana"]
[Black "Roselli Mailhe, Bernardo"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "1979"]
[BlackElo "2442"]
[Annotator "RC"]
[PlyCount "98"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:08:47]} Nf6 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:17]} g6 {[%emt 0:00:00]} 3. Bf4 {[%emt 0:00:17]} Bg7 {[%emt 0:00:00]} 4. e3 {[%emt 0:00:17]} d6 {[%emt 0:00:00]} 5. h3 {[%emt 0:00:12]} O-O {[%emt 0:00:00]} 6. Be2 {[%emt 0:00:16]} c5 {[%emt 0:00:13]} 7. c3 {[%emt 0:00:55]} Nc6 {[%emt 0:00:05]} 8. O-O {[%emt 0:00:21]} cxd4 {[%emt 0:00:37]} 9. exd4 {[%emt 0:05:12]} Nd5 {[%emt 0:00:20]} 10. Bh2 {[%emt 0:03:11]} e5 {[%emt 0:00:08]} 11. Na3 {[%emt 0:02:52]} Re8 {[%emt 0:06:01]} 12. Bc4 {[%emt 0:03:06]} Nb6 {[%emt 0:12:40]} 13. dxe5 {[%emt 0:05:55]} dxe5 {[%emt 0:03:46]} 14. Qxd8 {[%emt 0:02:02]} Nxd8 {[%emt 0:00:29]} 15. Rfe1 {[%emt 0:01:15]} Nxc4 {[%emt 0:03:23]} 16. Nxc4 {[%emt 0:01:17]} f6 {[%emt 0:00:10]} 17. Nd6 {[%emt 0:06:28]} Re7 {[%emt 0:01:47]} 18. Nxc8 {[%emt 0:05:05]} Rxc8 {[%emt 0:00:05]} 19. Rad1 {[%emt 0:01:12]} Ne6 {[%emt 0:01:41]} 20. Nd2 {[%emt 0:02:10]} Rd8 {[%emt 0:06:33]} 21. Nc4 {[%emt 0:08:57]} Red7 {[%emt 0:00:15]} 22. Ne3 {[%emt 0:05:11]} Rd2 {[%emt 0:00:39]} 23. Rxd2 {[%emt 0:09:22]} Rxd2 {[%emt 0:00:05]} 24. Nc4 {[%emt 0:00:22]} Rc2 {[%emt 0:06:28]} 25. f4 {[%emt 0:00:05]} Nxf4 {[%emt 0:01:51]} 26. Bxf4 {[%emt 0:02:18]} exf4 {[%emt 0:00:04]} 27. Re8+ {[%emt 0:00:10]} Bf8 {[%emt 0:00:04]} 28. a4 {[%emt 0:03:58]} Kg7 {[%emt 0:07:54]} 29. Rc8 {[%emt 0:00:23]} b6 {[%emt 0:00:41]} 30. Rc7+ {[%emt 0:01:33]} Kh6 {[%emt 0:00:19]} 31. Rf7 {[%emt 0:03:29]} Bc5+ {[%emt 0:03:10]} 32. Kf1 {[%emt 0:00:08]} Kg5 {[%emt 0:01:06]} 33. b4 {[%emt 0:04:32]} Rxc3 {[%emt 0:09:40]} 34. bxc5 {[%emt 0:00:53]} Rxc4 {[%emt 0:00:07]} 35. cxb6 {[%emt 0:00:11]} axb6 {[%emt 0:00:05]} 36. Rb7 {[%emt 0:00:14]} Rxa4 {[%emt 0:04:07]} 37. Rxb6 {[%emt 0:00:06]} Ra2 {[%emt 0:04:59]} 38. Rb3 {[%emt 0:03:00]} f5 {[%emt 0:02:56]} 39. Rf3 {[%emt 0:01:27]} Ra4 {[%emt 0:00:37]} 40. Kf2 {[%emt 0:00:38]} Kh4 {[%emt 0:00:23]} 41. Rb3 {[%emt 0:31:00]} g5 {[%emt 0:34:05]} 42. Rb5 {[%emt 0:03:15]} Ra2+ {[%emt 0:01:08]} 43. Kf1 {[%emt 0:03:50]} g4 {[%emt 0:04:01]} 44. Rxf5 {[%emt 0:00:08]} Kg3 {[%emt 0:00:04]} 45. hxg4 {[%emt 0:05:20]} Rf2+ {[%emt 0:00:36]} 46. Ke1 {[%emt 0:00:07]} Rxg2 {[%emt 0:00:12]} 47. g5 {[%emt 0:00:00]} f3 {[%emt 0:00:00]} 48. Rf7 {[%emt 0:00:00]} Rg1+ {[%emt 0:00:00]} 49. Kd2 {[%emt 0:00:00]} f2 {[%emt 0:00:00]} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "3.11"]
[White "Matsuura, Everaldo"]
[Black "Ribeiro, Matheus Mendes Domin"]
[Result "0-1"]
[ECO "D30"]
[WhiteElo "2448"]
[BlackElo "2061"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,54,0,2,0,0,-47,0,-65,-64,-52,0,-87,-41,-69,-67,-139,-116,-131,-64,-90,-99,-227,-135,-269,-163,-390,-389,-579,-570,-727,-542,-538,-556,-550,-543,-518,-462]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. e3 Be7 5. Nc3 O-O 6. Bd3 dxc4 7. Bxc4 c5 8. O-O Nc6 9. a3 cxd4 10. exd4 b6 11. Ba2 {D40: Queen's Gambit Declined: Semi-Tarrasch with 5 e3} (11. Bb3 Bb7 12. Bc2 Qd6 13. Qd3 g6 14. Bh6 Rfd8 15. Rad1 Bf8 16. Bg5 Bg7 17. Qe2 Ne7 18. Rfe1 Nf5 {0-1 (55) Heberla,B (2580)-Mista,A (2606) Katowice 2017}) 11... Bb7 12. Bg5 Nd5 (12... h6 $5 {[%cal Rh6g5]} 13. Bh4 g5 $11) 13. Be3 (13. Bxd5 $11 exd5 14. Bxe7 Nxe7 15. Re1) 13... Nxc3 $15 14. bxc3 Bxa3 ({Black should try} 14... Na5 $15) 15. Bxe6 (15. Ng5 $1 $11 Be7 16. Qg4) 15... Bb2 16. Ra2 $146 ({Predecessor:} 16. Ba2 Bxa1 17. Qxa1 Na5 18. Ne5 Rc8 19. c4 Re8 {½-½ (44) Reinhardt,E-Letelier Martner,R Sao Paulo 1960}) 16... Bxc3 17. Bb3 (17. Bc4 $15 Na5 18. Bd3) 17... Na5 $36 {[%mdl 2048] Black is in control.} 18. Bc2 {Hoping for Qd3!} Qd5 (18... g6 $17 19. Qd3 Rc8) 19. Qd3 {[%csl Gc2][%cal Rd3h7]} g6 20. Ra4 {[#]} (20. Bb1 $17 {might work better.} Qc4 21. Rc1 Qxd3 22. Bxd3) 20... Rac8 ({Better is} 20... b5 $1 $19 21. Qxc3 bxa4 22. Bxa4 Rfc8) 21. Bb1 (21. Rb1 $17) 21... Qb3 22. Rxa5 $2 (22. Bc2 Qe6 23. Ng5) 22... bxa5 $19 23. Bh6 (23. Bc2 $142 Qe6 24. Rb1) 23... Rfe8 {Black is clearly winning.} 24. Ng5 Qc4 25. Qxc4 Rxc4 26. Ba2 Rc7 27. d5 Bg7 {Accuracy: White = 17%, Black = 52%.} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.09"]
[Round "3.12"]
[White "Bortoloso, Moacir Canella"]
[Black "Alonso, Salvador"]
[Result "0-1"]
[ECO "B49"]
[WhiteElo "2067"]
[BlackElo "2481"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 30,80,0,-15,-2,-20,-9,-11,-20,-22,-2,-14,0,0,8,7,18,26,20,12,18,7,63,63,64,63,78,78,87,93,81,84,109,97,122,63,67,0,65,0,68,43,60,52,37,0,0,-903,-899,-874,-861,-29998,-29999]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Be2 Nf6 8. O-O Be7 9. f4 d6 10. a4 O-O 11. Kh1 Nxd4 12. Bxd4 e5 13. Be3 exf4 14. Bxf4 Be6 15. Qd3 Nd7 16. Qg3 Ne5 {[#] B85: Sicilian Scheveningen: 6 Be2 a6, lines with early Be3} 17. Rfd1 $146 ({Predecessor:} 17. Be3 Rfe8 18. Bd4 Bf8 19. Qf2 Rac8 20. Rfd1 g6 21. h3 Bg7 22. Bb6 Qe7 23. Bd4 Rc6 24. a5 {0-1 (49) Movsesian,S (2667)-Navara,D (2732) Czech Republic 2018}) 17... Rac8 18. Rac1 Qa5 {The position is equal.} 19. Bd2 {[#] Nd5 is the strong threat.} Qb6 20. b3 Ng6 21. Nd5 $36 {[%mdl 2048] White is more active.} Bxd5 $1 22. exd5 Bh4 23. Qg4 Qd8 24. c4 Ne5 25. Qh3 a5 ({Black should play} 25... Bg5 $11) 26. Bxa5 $14 Qxa5 27. Qxh4 Rfe8 28. Qe1 Qb6 29. Qc3 Qf2 30. Rc2 g6 31. Rf1 Qh4 32. Bf3 (32. a5 $16) 32... f5 33. Qb4 (33. Re2 $14) 33... Qf6 (33... Nd3 $11 34. Qd2 (34. Qxd6 $2 Qe1 $19) 34... Qd4) 34. Qc3 (34. Qd2 $14) 34... Re7 (34... Qh4 $1 $11) 35. Rcc1 Qg5 36. Rcd1 Rce8 37. h3 Qg3 38. Qb4 $2 {[%mdl 8192]} (38. Qe1 $11 Qf4 39. Qd2) 38... Nxf3 $19 {[%mdl 64] Overworked Piece} 39. Rxf3 Re1+ {[%mdl 64] Double Attack} 40. Rf1 {[#]} R8e2 $1 {[%mdl 512] Accuracy: White = 40%, Black = 48%.} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.09"]
[Round "3.13"]
[White "Zambrana, Oswaldo"]
[Black "Soares, Joao Carlos T. C."]
[Result "1-0"]
[ECO "B48"]
[WhiteElo "2445"]
[BlackElo "2019"]
[Annotator "TA"]
[PlyCount "143"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,143,26,10,50,22,28,15,35,29,49,0,0,-41,-36,-30,0,0,20,11,12,12,19,15,14,17,70,49,53,49,53,53,48,40,43,31,24,37,40,43,47,56,56,0,0,0,0,0,29,35,58,56,56,56,56,56,63,63,56,56,56,55,56,56,56,56,56,56,61,60,80,57,51,51,51,52,62,55,57,54,58,39,80,83,99,83,162,71,71,71,71,71,71,71,71,71,1591,67,70,69,69,69,70,70,78,69,78,78,210,261,234,251,244,87,87,72,766,169,29939,29952,3377,10752,29968,29969,29967,29969,29965,29964,29959,631]} 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 O-O {B48: Sicilian: Taimanov: 5 Nc3 Qc7 6 Be3 a6 without Be2} 10. g4 b5 11. Kb1 ({Predecessor:} 11. g5 Nh5 12. Kb1 Ne5 13. Be2 {1-0 (38) Rogers,I (2556)-Bjelobrk,I (2399) Brisbane 2005}) 11... Rb8 {The position is equal.} 12. g5 Nh5 13. Be2 $146 (13. Nxc6 dxc6 14. f4 c5 15. Be2 g6 16. Bxh5 gxh5 17. f5 {1-0 (27) Saric,I (2657)-Bosiocic,M (2611) Batumi 2018}) 13... Ne5 14. f4 (14. a3 $5 {[%cal Ra3b4]} Bxc3 15. Qxc3 (15. bxc3 Bb7 $17) 15... Qxc3 16. bxc3 $11) 14... Nc4 15. Bxc4 $1 bxc4 16. Nde2 $36 {[%mdl 2048] Black is under pressure.} Rd8 17. Bd4 Bb7 18. Qe3 {Threatens to win with Bb6.} Bc6 19. Ka1 Ba5 20. Rhf1 Bb6 (20... d6 $1 $11) 21. Rd2 Bxd4 22. Qxd4 d5 23. e5 Qb6 24. Qxb6 Rxb6 25. Ng3 (25. b3 {feels hotter.} cxb3 26. cxb3 g6 27. Kb2 Rdb8 28. Nd4) 25... Nxg3 26. hxg3 Rdb8 27. Rb1 a5 28. Ne2 Be8 29. b3 (29. g4 $14) 29... a4 $11 {[%cal Ra4b3]} 30. Nd4 axb3 31. cxb3 cxb3 (31... f6 {is more complex.} 32. gxf6 Bg6 33. Rc1 gxf6 34. exf6 Kf7) 32. Rxb3 Rxb3 33. axb3 {[%mdl 4096] Endgame KRB-KRN} h6 34. gxh6 gxh6 35. Kb2 Bd7 36. Rc2 Rb7 37. Kc3 Kg7 38. Re2 Kg6 39. g4 h5 40. gxh5+ Kxh5 41. Rg2 Kh6 42. Rg5 Rc7+ 43. Kd2 Rc8 44. Rg1 Rb8 45. Rb1 Kg6 46. Kd3 Kg7 47. b4 Bb5+ $1 48. Kd2 Rb7 49. f5 exf5 50. Nxf5+ Kg8 (50... Kf8 $16 {is a better defense.}) 51. Nd6 (51. Ke3 $18) 51... Rb6 $16 52. Ke3 f6 53. Kd4 fxe5+ 54. Kc5 Rc6+ 55. Kxd5 Rb6 $2 {[%mdl 8192]} (55... Ba4 $16) 56. Kxe5 $2 (56. Nxb5 $18 Rxb5+ 57. Kc6) 56... Bd3 57. Rb3 Bc2 58. Rb2 Bd3 59. Kd5 Kg7 60. Nc4 Rb5+ 61. Kd4 Bg6 {[#]} (61... Bf1 $16 {was worth a try.}) 62. Nd6 $1 $18 {[%cal Rd6b5]} Rb8 63. b5 {[%cal Bb4b5,Bb5b6,Bb6b7][%mdl 32] Strongly threatening Kc5.} Kf6 64. Kd5 $2 (64. b6 $18 {has better winning chances.} Ke6 65. Kc5) 64... Ke7 $16 65. Kc6 Bh5 $2 {[%mdl 8192]} (65... Bd3 $16) 66. Rb3 $2 (66. Rf2 Rf8 67. Nf5+ Kd8 68. Rd2+ Kc8 69. Ne7+ Kb8 70. Kb6) 66... Bd1 $2 (66... Rf8 $18) 67. Re3+ Kf6 68. b6 Ba4+ 69. Kc7 {White mates.} Rg8 70. b7 Rg7+ 71. Kb6 Rg8 72. Nc8 {Accuracy: White = 59%, Black = 46%.} (72. Rf3+ $142 Ke6 {[#]} 73. Ne8 $1 {[%mdl 512]} Rg1 74. Re3+ Kf7 75. Nd6+ Kf6 76. Ka5 Rb1 77. Kxa4) 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "3.14"]
[White "Rios Fo., Hilton Carlos da Sil"]
[Black "Rodi, Luis Ernesto"]
[Result "0-1"]
[ECO "A25"]
[WhiteElo "2022"]
[BlackElo "2341"]
[Annotator "TA"]
[PlyCount "48"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,62,20,35,23,27,27,43,33,43,-22,42,0,5,-9,0,0,29,8,18,16,39,15,27,-8,-20,-8,20,-26,-18,-20,0,-85,-52,-16,9,-49,-57,-114,-108,-147,-148,-243,-250,-245,-238,-222,-225,-491,-506,-463,-498,-452,-435,-29985,-29986]} 1. c4 e5 2. Nc3 Nc6 3. g3 Bc5 4. Bg2 a6 5. e3 d6 6. Nge2 {A25: English Opening vs King's Indian with ...Nc6 but without early d3} h5 7. h3 h4 8. d4 {White is slightly better.} Ba7 9. Qd3 $146 (9. g4 $14) ({Predecessor:} 9. g4 f5 10. dxe5 fxg4 11. exd6 gxh3 12. Bxh3 Bxh3 13. Rxh3 {0-1 (40) Gajewski,G (2634)-Ragger,M (2680) Chartres 2017}) 9... Nh6 (9... hxg3 $11 10. fxg3 Nf6) 10. d5 Ne7 11. e4 hxg3 12. fxg3 Ng6 13. Be3 Bxe3 14. Qxe3 f5 15. O-O-O b5 16. c5 b4 17. Na4 f4 18. Qd2 {[%cal Rg3f4]} fxg3 19. Nxg3 Qh4 20. Qe3 (20. cxd6 $11 {remains equal.} cxd6 21. Qe3) 20... Nf4 21. Bf1 O-O 22. Kb1 (22. cxd6 $11 cxd6 23. Nb6) 22... Bd7 $1 $36 {[%cal Rd7a4][%mdl 2048] Black is pushing.} 23. c6 ({White should try} 23. b3 $15) 23... Be8 24. b3 a5 {Played: Be8-g6} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.09"]
[Round "3.15"]
[White "Lage, Pedro Ferreira"]
[Black "Fernandez, Maria Florencia"]
[Result "1/2-1/2"]
[ECO "A06"]
[WhiteElo "2021"]
[BlackElo "2241"]
[Annotator "RC"]
[PlyCount "147"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. Nf3 {[%emt 0:17:13]} d5 {[%emt 0:00:00]} 2. g3 {[%emt 0:00:08]} Nf6 {[%emt 0:00:11]} 3. Bg2 {[%emt 0:00:10]} Nc6 {[%emt 0:00:22]} 4. d4 {[%emt 0:00:30]} Bf5 {[%emt 0:00:49]} 5. O-O {[%emt 0:01:03]} e6 {[%emt 0:00:21]} 6. c4 {[%emt 0:06:16]} Be7 {[%emt 0:03:43]} 7. Nbd2 {[%emt 0:07:45]} O-O {[%emt 0:05:32]} 8. b3 {[%emt 0:01:33]} a5 {[%emt 0:04:34]} 9. a3 {[%emt 0:03:37]} Ne4 {[%emt 0:08:03]} 10. Bb2 {[%emt 0:01:05]} Bf6 11. Rc1 {[%emt 0:03:34]} Ra6 {[%emt 0:10:09]} 12. e3 {[%emt 0:10:37]} h5 13. Ne1 {[%emt 0:13:54]} h4 {[%emt 0:10:16]} 14. Nxe4 {[%emt 0:01:27]} dxe4 {[%emt 0:01:52]} 15. Qc2 {[%emt 0:00:50]} Ne7 {[%emt 0:05:33]} 16. Bxe4 {[%emt 0:00:48]} hxg3 {[%emt 0:00:14]} 17. hxg3 {[%emt 0:00:44]} c5 {[%emt 0:02:39]} 18. Nf3 {[%emt 0:04:19]} a4 {[%emt 0:00:37]} 19. Bxf5 {[%emt 0:09:31]} Nxf5 {[%emt 0:01:15]} 20. dxc5 {[%emt 0:00:53]} axb3 {[%emt 0:01:09]} 21. Qxb3 {[%emt 0:00:14]} Bxb2 {[%emt 0:01:43]} 22. Qxb2 {[%emt 0:00:02]} Qe7 {[%emt 0:02:53]} 23. Nd4 {[%emt 0:06:08]} Nh6 {[%emt 0:03:41]} 24. Rb1 {[%emt 0:03:23]} Qxc5 {[%emt 0:09:13]} 25. Qxb7 {[%emt 0:00:20]} Rxa3 {[%emt 0:00:42]} 26. Qb4 {[%emt 0:00:44]} Qxb4 {[%emt 0:01:30]} 27. Rxb4 {[%emt 0:00:03]} Rc3 {[%emt 0:00:03]} 28. Nc6 {[%emt 0:03:10]} Kh7 {[%emt 0:03:09]} 29. Na5 {[%emt 0:02:56]} Rd8 {[%emt 0:01:10]} 30. Rfb1 {[%emt 0:01:01]} Ng4 {[%emt 0:01:50]} 31. c5 {[%emt 0:00:59]} Ne5 {[%emt 0:00:59]} 32. c6 {[%emt 0:00:30]} Rd2 {[%emt 0:07:24]} 33. R4b2 {[%emt 0:00:28]} Rdd3 {[%emt 0:02:59]} 34. Rb4 {[%emt 0:00:32]} Kg6 {[%emt 0:02:48]} 35. R4b3 {[%emt 0:00:32]} Rc5 {[%emt 0:02:44]} 36. Rxd3 {[%emt 0:00:28]} Nxd3 {[%emt 0:00:05]} 37. Nb3 {[%emt 0:00:32]} Rxc6 {[%emt 0:00:22]} 38. Nd4 {[%emt 0:00:14]} Ra6 {[%emt 0:00:04]} 39. Rd1 {[%emt 0:00:25]} Nc5 {[%emt 0:00:51]} 40. Rd2 {[%emt 0:00:42]} e5 {[%emt 0:00:35]} 41. Nb5 {[%emt 0:02:22]} Ne4 {[%emt 0:01:17]} 42. Rc2 {[%emt 0:00:55]} Ra5 {[%emt 0:01:24]} 43. Rb2 {[%emt 0:03:37]} Kf5 {[%emt 0:04:29]} 44. Rb4 {[%emt 0:07:21]} Nc5 {[%emt 0:04:35]} 45. Nc3 {[%emt 0:12:53]} Nd3 {[%emt 0:01:36]} 46. Rb7 {[%emt 0:01:39]} Ra1+ {[%emt 0:00:08]} 47. Kg2 {[%emt 0:04:28]} Ne1+ {[%emt 0:00:25]} 48. Kh3 {[%emt 0:00:08]} Kg6 {[%emt 0:02:24]} 49. g4 {[%emt 0:01:13]} Nd3 {[%emt 0:05:45]} 50. Kg2 {[%emt 0:00:12]} Rc1 {[%emt 0:00:48]} 51. Ne4 {[%emt 0:00:42]} Rc4 {[%emt 0:00:19]} 52. f3 {[%emt 0:00:38]} Rc2+ {[%emt 0:00:18]} 53. Kg3 {[%emt 0:00:26]} Re2 {[%emt 0:02:06]} 54. Rb6+ {[%emt 0:00:17]} f6 {[%emt 0:00:22]} 55. g5 {[%emt 0:00:26]} Rxe3 {[%emt 0:03:26]} 56. gxf6 {[%emt 0:00:05]} Ne1 {[%emt 0:01:31]} 57. fxg7+ {[%emt 0:01:16]} Kxg7 {[%emt 0:00:02]} 58. Kf2 {[%emt 0:00:23]} Rxf3+ {[%emt 0:00:00]} 59. Kxe1 {[%emt 0:00:08]} Re3+ {[%emt 0:00:03]} 60. Kf2 Rxe4 61. Kf3 Rf4+ 62. Ke3 {[%emt 0:00:54]} Kf7 {[%emt 0:00:01]} 63. Ra6 {[%emt 0:00:14]} Ke7 {[%emt 0:00:05]} 64. Rb6 {[%emt 0:00:08]} Rf6 {[%emt 0:00:34]} 65. Rxf6 {[%emt 0:00:16]} Kxf6 {[%emt 0:00:01]} 66. Ke4 {[%emt 0:00:06]} Ke6 {[%emt 0:00:02]} 67. Ke3 {[%emt 0:00:06]} Kd5 {[%emt 0:00:03]} 68. Kd3 {[%emt 0:00:04]} e4+ {[%emt 0:00:07]} 69. Ke3 {[%emt 0:00:03]} Ke5 {[%emt 0:00:04]} 70. Ke2 {[%emt 0:00:04]} Kd4 {[%emt 0:00:04]} 71. Kd2 {[%emt 0:00:02]} e3+ {[%emt 0:00:05]} 72. Ke2 {[%emt 0:00:03]} Ke4 {[%emt 0:00:04]} 73. Ke1 {[%emt 0:00:05]} Kf3 {[%emt 0:00:08]} 74. Kf1 {[%emt 0:00:03]} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.08"]
[Round "3.16"]
[White "Guimaraes, Marcelo Cunha"]
[Black "Lopes, Artur Farias"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2171"]
[BlackElo "1995"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,68,33,25,32,28,34,17,52,21,19,33,29,0,33,-16,21,0,32,28,67,27,42,42,91,51,88,37,32,25,38,40,39,31,110,23,41,-56,-48,-52,-48,-57,0,-93,-57,-453,-456,-427,-373,-764,-116,-116,-115,-127,-113,-651,-650,-29993,-29994]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Nd7 6. O-O h6 7. Nbd2 {[%cal Bb1d2,Bd2b3,Bb3a5][%mdl 32]} Ne7 {B12: Caro-Kann: Advance Variation} 8. Nb3 g5 9. Bd2 (9. a4 Bg7 10. a5 O-O 11. c3 Qc7 12. h4 g4 13. Ne1 h5 14. Nd3 Ng6 {0-1 (47) Alekseenko,K (2668)-Artemiev,V (2757) Izhevsk 2019}) 9... Ng6 {The position is equal.} 10. Rc1 $146 ({Predecessor:} 10. Ne1 Nf4 11. Bxf4 gxf4 12. Nd3 Qg5 13. Qd2 Bxd3 14. Qxd3 h5 15. Bf3 {1-0 (71) Kosteniuk,A (2541)-Khotenashvili,B (2504) Beijing 2014}) 10... g4 11. Ne1 $1 h5 12. Nd3 Be7 13. Na5 Rb8 14. b4 Qc7 15. c4 Be4 16. f3 gxf3 17. gxf3 Bf5 18. Kh1 b6 19. cxd5 (19. Nb3 $16) 19... bxa5 $14 20. d6 $1 {[%cal Rd6c7] [#]} Bxd6 $1 21. exd6 Qxd6 {[%cal Ra5b4][%mdl 64] Double Attack} 22. bxa5 O-O (22... Rg8 $14) 23. Qa4 (23. Rg1 $16) 23... c5 ({Much worse is} 23... Bxd3 $6 24. Bxd3 Rfc8 25. Rg1 $16) 24. Nxc5 (24. Be3 $14) 24... Nxc5 $15 25. Rxc5 Rb2 $36 {[%mdl 2048] Black is more active.} 26. Rd1 Rd8 ({Black should play} 26... Rfb8 $1 $15) 27. Rc4 (27. Qc4 $11 {keeps the balance.}) 27... Nf4 28. Rg1+ $2 {[%mdl 8192] [#]} (28. Rb4 $1 $15 Rc2 29. Bxf4 Qxf4 30. d5) 28... Kh7 $1 $19 ({Less strong is} 28... Ng6 29. Qd1 $15) 29. Bxf4 Qxf4 30. Qd1 $2 (30. d5 Qe3 31. Rh4) 30... Rb1 $2 (30... Qe3 $19 {has better winning chances.} 31. Bf1 Rg8 32. Rxg8 Kxg8 33. Rc8+ Kh7) 31. Rc1 $17 Rdb8 {Strongly threatening ...Qe3.} (31... Rb2 $2 32. Rg2 $19) 32. Qf1 Bg6 33. Bd3 $2 {[%mdl 8192] [#]} (33. Rxb1 $17 Rxb1 34. Qh3 Rxg1+ 35. Kxg1) 33... R8b2 $1 $19 {[%csl Gf4][%cal Rb2h2][%mdl 576] Double Attack} 34. Bxg6+ fxg6 {Accuracy: White = 20%, Black = 30%.} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.09"]
[Round "4.1"]
[White "Roselli Mailhe, Bernardo"]
[Black "Martinez Alcantara, Jose Eduardo"]
[Result "0-1"]
[ECO "E12"]
[WhiteElo "2442"]
[BlackElo "2592"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,72,2,7,9,12,4,2,9,7,5,10,1,0,0,0,21,25,25,-2,6,0,0,0,0,0,18,-6,-17,-77,-93,-89,-45,-79,-36,-39,-30,-71,-69,-201,-201,-200,-209,-311,-312,-296,-301,-307,-232,-435,-400,-730,-737,-29995,-1215,-1158,-1124,-2100,-1352,-2012,-1017,-1861,-1851]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 c5 5. d5 Ba6 6. e3 exd5 7. cxd5 Bxf1 {E12: Queen's Indian: Unusual White 4th moves, 4 a3, 4 Nc3 Bb7 5 a3 and 4 Nc3 Bb7} 8. Kxf1 g6 9. Nc3 {Threatening e4.} Bg7 {The position is equal.} 10. g3 O-O 11. Kg2 d6 12. Re1 (12. e4 a6 13. a4 Re8 14. Re1 Nbd7 15. h3 {½-½ (53) Drozdovskij,Y (2561)-Ovetchkin,R (2543) playchess.com INT 2006}) 12... Nbd7 13. e4 Qb8 $146 ({Predecessor:} 13... Ng4 14. Nd2 f5 15. exf5 gxf5 {1-0 (50) Zimmerman,Y (2375)-Gozzoli,Y (2444) La Fere 2005}) 14. a4 a6 {[%cal Ba7a6,Ba6b5,Bb5b4][%mdl 32]} 15. h3 Qc7 16. Bd2 Rfe8 17. Rc1 Qb7 18. Bf4 b5 {Black wants to play ...b4.} 19. axb5 axb5 {With the idea ...b4.} 20. Qb3 {[#]} (20. Qc2 $11) 20... b4 $1 $17 {...c4 is the strong threat.} 21. Nd2 Qa6 22. Nd1 h6 {And now ...g5 would win.} (22... Nh5 $5 {[%cal Rh5f4]} 23. Ne3 Nxf4+ 24. gxf4 Bh6 $11) 23. g4 Nb6 $36 {[%mdl 2048] Black fights for an advantage.} 24. Ne3 Nxe4 25. Nxe4 ({White must play} 25. Ndc4 $1 $15) 25... Rxe4 $19 26. Bxd6 Na4 {[%mdl 64] Discovered Attack} 27. Ra1 (27. Bxc5 $142 Bxb2 28. Bxb4 Bxc1 29. Rxc1) 27... Qxd6 28. Rxa4 Rae8 29. Qd3 Bd4 30. Ra6 $2 (30. Ra8 Rxg4+ 31. hxg4 Rxa8 32. Qe4) 30... Qf4 {[%cal Rd4e3]} 31. d6 (31. Rf1 $142 Bxb2 32. Qb5) 31... Bxe3 32. f3 {[#]} Bf2 (32... Bg1 $142 $1 {[%mdl 512]} 33. Qd2 (33. Rxg1 Re2+) 33... Qxd2+ 34. Re2 Rxe2+ 35. Kh1 Rh2+ {[%mdl 64] Double Attack} 36. Kxg1 Qg2#) 33. fxe4 {Black is clearly winning.} Bxe1 34. d7 Qf2+ {Played: Re8-d8} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.09"]
[Round "4.2"]
[White "Supi, Luis Paulo"]
[Black "Vazquez, Guillermo"]
[Result "0-1"]
[ECO "E20"]
[WhiteElo "2578"]
[BlackElo "2506"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,78,-17,-2,-8,-12,-8,0,0,10,-29,0,0,-20,-8,0,0,0,0,0,0,0,-15,-13,-44,-47,-47,0,-36,-36,-43,-43,-87,-10,-47,-44,-64,-64,-73,-60,-112,-43,-167,-146,-250,-258,-231,-181,-164,-84,-87,-92,-199,-199,-212,-196,-201,-176,-182,-178,-161,-118,-310,-278,-518,-525,-29987,-29988]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. g3 O-O 5. Bg2 d5 6. Nf3 dxc4 7. O-O Nc6 8. Qa4 {E20: Nimzo-Indian: 4 g3 and 4 f3} Nd5 9. Qc2 Be7 10. Rd1 {The position is equal.} b6 (10... Ncb4 11. Qd2 Rb8 12. Ne5 Nb6 13. a3 N4d5 14. e4 Nxc3 15. Qxc3 Bd7 16. Nxc4 Nxc4 17. Qxc4 {1-0 (70) Dubov,D (2700)-Anand,V (2764) Paris 2019}) 11. h4 (11. e4 $5 {[%cal Re4d5]} Ndb4 12. Qb1 $15) 11... h6 $146 ({Predecessor:} 11... Bb7 12. Ng5 Bxg5 13. Bxg5 f6 14. Bc1 Ncb4 15. Qd2 c5 16. dxc5 bxc5 17. Nxd5 Nxd5 {0-1 (64) Barrionuevo,P (2263)-Villanueva,M (2482) Buenos Aires 2019}) 12. e4 Ndb4 13. Qe2 Ba6 14. d5 exd5 15. exd5 Na5 16. Nd4 $1 {[%cal Rd4f5]} Bf6 $1 17. Nf5 {d6 is the strong threat.} Bc8 $1 {[%cal Rc8f5]} 18. Qg4 {And now Nxh6+ would win.} Bxf5 19. Qxf5 g6 20. Qh3 {aiming for d6.} Bg7 $36 {[%mdl 2048] White is under pressure.} 21. h5 g5 22. d6 Nd3 (22... cxd6 $17 {Black wants to play ...Qc8.} 23. Bxa8 Qxa8) 23. dxc7 Qxc7 {Hoping for ...Rae8.} 24. Bxa8 Rxa8 25. Be3 Nc6 {[%mdl 1024] Black has strong compensation.} 26. Rab1 ({White should play} 26. Nb5 $15 Qe7 27. Qg2) 26... Rd8 (26... Re8 $17) 27. Qg2 (27. Qf5 $15) 27... Qc8 $19 28. Ne2 (28. Nb5 $17) 28... Nce5 ({But not} 28... Bxb2 29. Rxb2 Nxb2 30. Rxd8+ Nxd8 31. Qe4 $17) 29. Bd4 Qg4 {Strongly threatening ...Nf3+.} 30. Bxe5 Qxe2 (30... Bxe5 $19 31. Rd2 Kg7) 31. Bxg7 $17 Kxg7 32. f3 {[#]} (32. Qf1 $17 Qxh5 33. b3) 32... Qe3+ $1 $19 33. Kh2 Rd4 34. Rf1 b5 {[%cal Bb6b5,Bb5b4][%mdl 32]} 35. Rbd1 b4 36. Qc2 a5 37. Kg2 $2 (37. Qg2 $17 {is a better defense.}) 37... g4 38. fxg4 $2 (38. f4) 38... Rxg4 39. Rf3 {[#]} Nf4+ $1 {[%mdl 576] Double Attack, Pin. Accuracy: White = 34%, Black = 64%.} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.09"]
[Round "4.3"]
[White "Ribeiro, Matheus Mendes Domin"]
[Black "Cruz, Cristhian"]
[Result "0-1"]
[ECO "A20"]
[WhiteElo "2061"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,88,13,0,14,15,20,11,28,13,20,0,0,0,0,-22,-10,-29,-31,-27,-16,-30,-26,-109,-112,-110,-99,-105,-93,-141,-130,-126,-130,-127,-134,-134,-130,-136,-135,-129,-141,-133,-83,-108,-83,-94,-86,-92,-84,-92,-106,-215,-213,-215,-213,-542,-493,-593,-593,-593,-583,-1173,-1127,-4690,-2837,-5700,-5691,-5549,-5616,-29975,-5373,-4914,-1730]} 1. c4 e5 2. g3 Nc6 3. Bg2 Bc5 4. Nc3 a6 5. Nf3 d6 6. O-O Nf6 7. d3 h6 8. a3 O-O 9. b4 Ba7 10. Bb2 Re8 {A29: English Opening: Four Knights Variation with 4 g3} 11. Nd2 (11. e3 Ne7 12. Nd2 Rb8 13. Nde4 Ng6 14. Rc1 c6 15. c5 Nxe4 16. Nxe4 d5 17. Nd6 Bd7 18. Nxe8 Qxe8 {0-1 (44) Grischuk,A (2754)-Carlsen,M (2857) chess.com INT 2016}) 11... Ne7 12. Rc1 c6 {The position is equal.} 13. e3 $146 ({Predecessor:} 13. Nde4 Nf5 14. a4 Be6 15. b5 axb5 16. axb5 Nh7 17. Ra1 d5 18. Nd2 {½-½ (65) Stork,O (2111)-Wobbe,S (2049) Lueneburg 2018}) 13... Bg4 14. Qb3 Qd7 15. Nde4 Nxe4 16. dxe4 (16. Nxe4 {feels hotter.} Be6 17. Qc2 f5 18. Nd2 Rad8 19. Rce1) 16... Rad8 17. b5 axb5 18. cxb5 Be6 19. Qc2 cxb5 20. Nd5 (20. Rfd1 $11) 20... Nxd5 $17 21. exd5 Bf5 $36 {[%mdl 2048] Black is really pushing.} 22. Qb3 Bc5 23. Bc3 {[#]} Bd3 $1 24. Rfd1 Bc4 25. Qb2 Ra8 26. Bb4 Bxb4 27. Qxb4 Ra4 28. Qb2 Rea8 29. Rc3 b6 30. Bf1 Qa7 {[%cal Ra4a3]} 31. Rb1 Qa5 32. Rbc1 Rc8 33. Bd3 g6 34. Rb3 (34. Rb1 $17 {keeps fighting.}) 34... Rc5 $19 35. Bxc4 Raxc4 ({But not} 35... bxc4 36. Rxb6 c3 37. Rb8+ Kg7 38. Qb6 $15) 36. Rxc4 $2 {[#]} (36. Rf1 {is a better chance.}) 36... bxc4 37. Rxb6 {[%mdl 4096] Endgame KQR-KQR} c3 38. Rb8+ Kg7 39. Qc1 c2 40. Rb3 Qa6 41. Kg2 Qc4 42. Rb2 Qxd5+ 43. e4 Qd1 (43... Qxe4+ $142 44. Kg1 Qe2 45. Kg2 e4 46. Rxc2 Rxc2 47. Qa1+ f6 48. Qd4 g5 49. Qa7+ Kg6 50. Qd4 Qf3+ {[%mdl 64] Double Attack} 51. Kh3 Rxf2 52. Qxe4+ Qxe4 53. a4 Qxa4 54. g4 Qb3#) 44. Rxc2 Qxc1 {Accuracy: White = 35%, Black = 67%.} (44... Qxc2 $142 45. Qxc2 Rxc2) 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.09"]
[Round "4.4"]
[White "Hernandez Guerrero, Gilberto"]
[Black "Galego, Luis"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "2554"]
[BlackElo "2483"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,65,41,64,34,56,53,72,54,54,63,60,51,50,55,77,71,77,72,79,79,69,91,71,77,79,37,60,49,56,52,45,24,35,31,68,81,54,39,50,22,22,22,37,16,22,11,13,12,12,10,12,8,10,0,14,0,13,0]} 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Nf3 a6 6. Bd3 {B01: Scandinavian Defence} (6. Be2 g6 7. O-O Bg7 8. h3 O-O 9. Be3 Nc6 10. Qd2 e6 11. Rad1 Ne7 12. Bf4 Qd8 13. Bh6 b6 14. Bxg7 Kxg7 {½-½ (47) Giri,A (2779)-Nakamura,H (2754) Paris 2019}) 6... Nc6 $146 ({Predecessor:} 6... Bg4 7. h3 Bh5 8. O-O e6 9. Ne4 Nxe4 10. Bxe4 {1-0 (43) Horther Schneider,E (1820)-Albrecht,A (1696) Bayern 2016}) 7. O-O Bg4 8. h3 {White is better.} Bh5 9. Ne4 Nxe4 10. Bxe4 e6 11. c3 Be7 12. Qb3 Bxf3 13. Bxf3 Rb8 14. Be3 O-O 15. Rad1 b5 16. Qc2 Bf6 17. Be4 (17. d5 $5 {[%cal Rd5c6]} Ne5 18. Be4 $16) 17... g6 $1 18. d5 Ne7 {[%cal Re7d5]} 19. dxe6 Qxe6 20. a3 Rbd8 21. Rfe1 Qc4 22. Bd3 Qc6 23. Bh6 Rfe8 24. Qc1 Nc8 {[#] Hoping for ...Rxe1+.} 25. Rxe8+ Rxe8 26. Re1 Nd6 {The position is equal.} 27. Rxe8+ (27. g3 {is more complex.} Rxe1+ 28. Qxe1 Qc5 29. h4 Qe5 30. Qd1) 27... Qxe8 28. Qe3 Qxe3 29. Bxe3 Kf8 30. Kf1 Ke7 31. Ke2 Ke6 32. Kd1 a5 33. Kc2 {Accuracy: White = 49%, Black = 63%.} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.09"]
[Round "4.5"]
[White "Diamant, Andre"]
[Black "Labussiere, Victor"]
[Result "1-0"]
[ECO "B47"]
[WhiteElo "2533"]
[BlackElo "2295"]
[Annotator "TA"]
[PlyCount "47"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,47,13,16,0,30,33,196,220,211,197,206,206,207,205,257,262,256,247,272,286,292,293]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. Be2 a6 7. O-O Nf6 8. Be3 Be7 9. f4 d6 10. Kh1 O-O 11. Qe1 Nxd4 12. Bxd4 b5 13. a3 Bb7 14. Qg3 Rad8 15. Bd3 {B85: Sicilian Scheveningen: 6 Be2 a6, lines with early Be3} Nh5 (15... Rd7 16. Rae1 Re8 17. Re2 Qd8 18. Qh3 Bf8 19. a4 e5 20. fxe5 dxe5 21. Bf2 b4 22. Nd5 Nxd5 23. exd5 {0-1 (62) Navara,D (2724)-Moranda,W (2597) Katowice 2019}) 16. Qh3 Nxf4 $2 (16... e5 $14 17. Qxh5 g6) 17. Rxf4 $18 {White is clearly better.} e5 18. Nd5 Bxd5 19. exd5 $40 {[%csl Gd3][%cal Rh3h7][%mdl 128] [#] White wants a kill.} g6 20. Qh6 $146 {aiming for Rf5!} ({Predecessor:} 20. Raf1 f5 21. Bxf5 gxf5 22. Rxf5 Rxf5 23. Rxf5 {½-½ (80) Kosintseva,T (2483)-Gomes,M (2354) Sochi 2015}) 20... f5 21. Bc3 Bf6 {And now ...Bg7 would win.} 22. Rff1 Bg7 23. Qd2 Rde8 24. Be2 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.09"]
[Round "4.6"]
[White "Di Berardino, Diego Rafael"]
[Black "Rangel, Daniel"]
[Result "1-0"]
[ECO "E06"]
[WhiteElo "2489"]
[BlackElo "2258"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,59,12,4,45,40,51,37,51,47,48,51,52,58,54,35,57,35,79,79,78,79,80,72,77,65,64,63,73,73,170,172,196,198,199,191,202,174,241,221,293,274,412,405,902,814,755,755]} 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. d4 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 a6 8. a4 a5 {E05: Open Catalan: 5 Nf3 Be7} (8... Bd7 9. Qxc4 Bc6 10. Bf4 Bd6 11. Qc1 Nbd7 12. Re1 Qe7 13. Nc3 Bxf3 14. Bxf3 Bxf4 15. Qxf4 c6 16. a5 Rad8 17. Red1 e5 18. Qe3 {0-1 (76) Ding,L (2811)-Radjabov,T (2758) Khanty-Mansiysk 2019}) 9. Rd1 Na6 10. Ne5 c6 {White is slightly better.} 11. Qxc4 Nb4 12. Nc3 Nd7 13. h4 $146 ({Predecessor:} 13. Bf4 Nd5 14. Nxd7 Bxd7 15. Bd2 Nb4 16. Rac1 {½-½ (74) Roiz,M (2677)-Zubov,A (2564) Israel 2009}) 13... Qb6 14. Bg5 Qd8 15. Ne4 Nf6 16. Nxf6+ Bxf6 17. Bxf6 Qxf6 18. Qc5 Qd8 19. Nc4 Ra6 20. Rac1 b6 21. Qh5 b5 (21... Na2 $16) 22. axb5 $18 cxb5 23. Qxb5 Bd7 24. Qc5 {And now Bb7 would win.} Ba4 25. Rd2 {[#] Bb7 is the strong threat.} Bc6 (25... Bb3 {was called for.} 26. e3 Bxc4) 26. e4 Bb7 27. d5 Qa8 (27... Qc8 {is a better defense.} 28. Qxc8 Rxc8) 28. Nd6 Rd8 (28... h6 $142 29. dxe6 Rc6) 29. Nxb7 Qxb7 {[#]} 30. dxe6 $1 {[%mdl 512] Accuracy: White = 79%, Black = 29%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.10"]
[Round "4.7"]
[White "Alonso, Salvador"]
[Black "Gauche, Charles"]
[Result "1/2-1/2"]
[ECO "B42"]
[WhiteElo "2481"]
[BlackElo "2248"]
[Annotator "TA"]
[PlyCount "129"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,129,37,40,91,79,83,85,77,84,89,87,79,71,113,104,102,98,117,103,128,109,127,103,139,131,147,106,103,116,112,104,118,121,122,97,93,89,107,89,107,93,77,22,41,55,195,0,0,0,0,0,0,-62,0,-80,-61,-48,-58,-64,-64,-74,-54,-29,-34,-44,-45,-59,-6,-8,0,-63,-31,-68,-56,-86,-76,-83,-89,-79,-89,-92,-81,-103,-68,-70,-69,-50,0,0,0,0,0,0,0,0,0,0,0,0,0,0,2,15,77,74,19,35,139,63,153,161,138,25,34,0]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Qc7 6. O-O Nf6 7. Qe2 d6 8. c4 Nbd7 9. f4 h5 {B42: Sicilian: Kan Variation: 5 Bd3} ({Black should play} 9... e5 $14) 10. Nf3 $146 ({Predecessor:} 10. Kh1 b6 11. Nc3 Be7 12. Bd2 g6 13. f5 Ne5 14. Bg5 Nfg4 15. Bxe7 Qxe7 16. Bc2 Bd7 17. Nf3 {1-0 (39) Shirov,A (2739)-Gwaze,R (2429) Khanty-Mansiysk 2007}) 10... b6 11. Nc3 Bb7 {White is better.} 12. Bd2 Be7 13. b4 h4 14. Ng5 Nh5 15. f5 e5 16. Nh3 Bf6 17. Nd5 Qd8 18. Rab1 Bc6 19. Be3 Rb8 20. Rbc1 Be7 21. Qf2 Nhf6 22. Nxe7 Qxe7 23. Qf3 Qd8 24. Nf2 Qc7 25. Nd1 Qb7 {[%cal Rc6e4]} 26. Nc3 {[#] b5 is the strong threat.} b5 27. cxb5 Bxb5 28. Bxb5 axb5 29. Nd5 (29. Rfd1 $16) 29... Nxd5 $11 30. exd5 Nb6 (30... Nf6 $14) 31. Bxb6 $2 (31. Rc6 $18 Nc4 32. f6) 31... Qxb6+ 32. Kh1 h3 33. gxh3 Qd4 34. f6 (34. Rg1 $11) 34... gxf6 (34... g6 $1 $15) 35. Rcd1 (35. Qg2 $11) 35... Qh4 (35... Qxb4 {is interesting.} 36. Qxf6 Qe4+ 37. Rf3 Rf8 38. Qf5 Qxf5 39. Rxf5 Rc8) 36. Qxf6 Qxf6 37. Rxf6 $15 {[%mdl 4096] Endgame KRR-KRR} Ke7 38. Rf3 Rbc8 {[%mdl 1024] Black has strong compensation.} 39. Rdf1 Rh7 40. Ra3 Rc7 41. Raf3 Rc4 (41... Kf8 $15) 42. Ra3 $1 $11 Rc7 (42... Rxb4 $11 43. Ra7+ Kf8) 43. Raf3 $15 Ke8 44. Rg3 Rh4 45. Rg8+ Ke7 46. Rg7 Kf8 47. Rg6 Rd7 48. Rg4 Rxh3 49. Kg2 Rh5 50. a4 bxa4 {White must now prevent ...f5.} 51. b5 f5 {Strongly threatening ...Rdh7.} (51... a3 {with more complications.} 52. Ra4 Rg5+ 53. Kh1 Rb7 54. Rxa3 Rxb5 55. Ra7 f5) 52. Rxa4 Rg7+ 53. Kh1 Rb7 54. Rb1 Ke7 55. b6 {aiming for Ra7.} Rh8 {Black wants to play ...Rhb8.} 56. Kg2 Kf6 57. Ra7 Rbb8 58. Rd7 Rbg8+ 59. Kh1 f4 (59... Rd8 $11 60. Rxd8 Rxd8) 60. Rxd6+ $16 Kf5 61. Rd7 e4 (61... Ra8 $14) 62. Re7 ({White should try} 62. b7 $16) 62... f3 (62... Ra8 $14 63. Rf7+ Ke5) 63. b7 Rd8 {[#]} 64. Kg1 ({White must play} 64. Rb5 $1 $16) 64... Rdg8+ $1 $11 65. Kf2 {Accuracy: White = 58%, Black = 45%.} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.09"]
[Round "4.8"]
[White "Perdomo, Leandro"]
[Black "Terao, Juliana Sayumi"]
[Result "1-0"]
[ECO "D35"]
[WhiteElo "2474"]
[BlackElo "2225"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,81,33,29,41,22,43,-4,-7,0,40,18,37,0,0,0,0,0,32,-19,-18,-16,-16,-2,0,0,0,-33,111,122,119,81,66,64,71,75,144,139,131,118,116,56,45,51,49,0,0,0,41,0,78,73,68,83,62,77,980,795,29993,29994,29994,29995]} 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 exd5 5. Bg5 Be7 6. e3 c6 7. Bd3 O-O 8. Qc2 Nbd7 9. Nf3 Re8 10. O-O Nf8 11. h3 g6 12. Bh6 Bd6 {D36: Queen's Gambit Declined: Exchange Variation: Main line (5 Bg5 c6 6 Qc2)} (12... Ne6 13. Ne5 Ng7 14. g4 Nd7 15. f4 Bb4 16. Qf2 f6 17. Nf3 Nf8 18. Nh4 f5 19. Bxg7 Kxg7 20. gxf5 {½-½ (44) Leko,P (2669)-Sarana,A (2618) Moscow 2018}) 13. Rab1 Qe7 14. Bf4 $146 ({Predecessor:} 14. Bg5 Ne6 15. Bh4 Ng7 16. e4 dxe4 17. Nxe4 Ngh5 18. Rfe1 Be6 19. g4 Qd7 20. Nxf6+ Nxf6 21. Bxf6 Bxg4 {1-0 (33) Shariyazdanov,A (2465)-Riline Orso,A (2250) Roque Saenz Pena 1997}) 14... Bxf4 {The position is equal.} 15. exf4 Nh5 16. Rbe1 {[%cal Bb1e1,Be1e5,Be5f5][%mdl 32]} Be6 17. f5 gxf5 18. Bxf5 Qf6 19. Re5 {aiming for Bxe6.} Nf4 20. Bxe6 ({White should play} 20. Qd2 $14 Bxf5 21. Qxf4 Rxe5 22. dxe5) 20... N8xe6 $11 21. Qf5 $1 {[%cal Rf5f6]} Qg7 {[%csl Gf4][%cal Rg7g2]} 22. Qg4 Ng6 23. Rf5 f6 24. Ne2 {Black should prevent Ng3.} Nef8 {[#]} (24... Qf8 $15 {stays ahead.}) 25. Ng3 $1 $16 {[%cal Rg3h5]} Re6 26. Nh5 Qe7 27. h4 Kh8 28. Ng3 {Black must now prevent h5.} Qd6 (28... Qg7 $142) 29. h5 Ne7 30. Rf4 Nd7 31. Nf5 (31. Nh4 $16) 31... Nxf5 $14 32. Qxf5 Rae8 33. Rd1 $40 {[%mdl 128] White is up to no good.} Nb6 34. h6 Qf8 35. Ne5 R8e7 (35... Nc8 $11 {keeps the balance.}) 36. Rd3 $16 {And now Rg3 would win.} Nc4 37. Nxc4 $1 dxc4 38. Rh3 $1 Qd8 $2 {[%mdl 8192] [#]} (38... Re1+ $16 39. Kh2 Rf7) 39. Re3 $1 {[%mdl 512]} Qe8 (39... Rxe3 40. Qxf6+) 40. Rxe6 Rxe6 {[#]} 41. Re4 $1 {[%mdl 512] Accuracy: White = 53%, Black = 31%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.09"]
[Round "4.9"]
[White "Lopes, Artur Farias"]
[Black "Zambrana, Oswaldo"]
[Result "0-1"]
[ECO "A05"]
[WhiteElo "1995"]
[BlackElo "2445"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,58,2,8,3,-11,-8,-25,-23,-37,-6,-7,-1,-15,0,-22,-13,-14,-20,-127,-75,-81,-78,-66,-75,-85,-80,-293,-290,-398,-411,-423,-410,-496,-497,-693,-722,-808,-804,-731,-744]} 1. Nf3 Nf6 2. g3 g6 3. c4 c6 4. Bg2 Bg7 5. Nc3 d5 6. d4 O-O 7. O-O Ne4 8. cxd5 Nxc3 9. bxc3 cxd5 10. Qb3 Nc6 11. Nd2 e6 $1 {D79: Fianchetto Grünfeld: Symmetrical Variation (6 0-0 c6 7 cxd5 cxd5)} 12. e3 (12. e4 Na5 13. Qd1 Qc7 14. Qf3 b6 15. exd5 exd5 16. Nb3 Nxb3 17. Bf4 Nxd4 18. cxd4 Qc2 19. Rac1 Qxa2 20. Qxd5 Qxd5 21. Bxd5 {0-1 (44) Nabaty,T (2619)-Swiercz,D (2656) Gjakova 2016}) 12... Na5 13. Qb4 b6 {Black has an edge.} 14. Qb5 $146 ({Predecessor:} 14. Ba3 Re8 15. Rfc1 Bf8 16. Qb2 Ba6 17. Bxf8 Kxf8 18. Bf1 Bxf1 19. Kxf1 {0-1 (64) Jabbar,R (1766)-Sulcz,I (1859) Budapest 2016}) 14... Bb7 15. Ba3 Re8 16. Rfc1 Rc8 17. c4 Bc6 $36 {[%mdl 2048] Black is pushing.} 18. Qa6 $1 Qd7 19. Bb4 (19. Rab1 $1 $11) 19... dxc4 (19... Nxc4 $142 20. Nxc4 dxc4 21. Bxc6 Qxc6) 20. Bxa5 $17 {[#]} Bb5 $1 {[%cal Rb5a6]} 21. Qb7 Rc7 22. Qf3 {aiming for Bc3.} bxa5 23. Rc2 $2 (23. Ne4 $17) 23... e5 $19 24. dxe5 Bxe5 25. Rac1 {[%cal Rd2c4]} c3 26. Ne4 Bd3 {Black is clearly winning.} 27. Rxc3 Bxc3 28. Nxc3 Rec8 29. Qf6 Qf5 {Accuracy: White = 16%, Black = 80%.} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.10"]
[Round "4.10"]
[White "Rodi, Luis Ernesto"]
[Black "Pirola, Claudionor Alcides L"]
[Result "1/2-1/2"]
[ECO "D53"]
[WhiteElo "2341"]
[BlackElo "2106"]
[Annotator "TA"]
[PlyCount "130"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,130,33,17,17,8,19,7,23,19,35,33,33,27,31,22,65,62,77,60,61,54,50,21,33,0,58,68,112,125,145,113,129,76,115,131,132,104,137,158,140,143,175,166,169,48,38,47,45,37,43,31,36,32,25,31,85,84,90,48,75,0,86,46,56,0,0,0,0,0,0,0,0,0,0,-22,0,0,0,-16,-16,-16,-16,-16,-16,-16,-16,-18,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-16,0]} 1. d4 d5 2. Bg5 Nf6 3. e3 e6 4. c4 Be7 5. Nc3 O-O 6. Qc2 b6 7. cxd5 exd5 8. Bd3 Nbd7 9. Nf3 Bb7 10. Ne5 h6 {D55: Queen's Gambit Declined: 4 Bg5 Be7: Lines without ...h6 and 6...h6 7 Bxf6} 11. Bf4 c5 12. O-O Nh5 (12... Nxe5 13. Bxe5 Bd6 14. Rad1 Ng4 15. Bg3 Bxg3 16. hxg3 c4 17. Be2 Nf6 18. Bf3 a6 19. e4 dxe4 20. Nxe4 Nxe4 21. Bxe4 Bxe4 22. Qxe4 {½-½ (36) Sundararajan,K (2474)-Arun Prasad,S (2530) Moscow 2012}) 13. Nxd7 Qxd7 14. Bh7+ Kh8 15. Bf5 Qc6 $146 {[#] And now ...cxd4 would win.} ({Predecessor:} 15... Qd8 16. Be5 f6 17. Bg3 Nxg3 18. hxg3 cxd4 19. exd4 {1-0 (58) Kjeldsen,T-Hjort,H Vejle 1974}) 16. Be5 Bf6 17. f4 g6 18. Bg4 Ng7 19. Bf3 Rad8 20. Rad1 cxd4 21. exd4 Bxe5 (21... Be7 $1 $11) 22. fxe5 $14 Nf5 23. Qd2 $36 {[%mdl 2048] [#] Strongly threatening g4. Black is under strong pressure.} Kg7 24. g4 Ne7 25. Bg2 (25. Be2 $142) 25... Bc8 26. Rf6 Be6 27. h3 Rc8 28. Bf1 Ng8 29. Rf2 f6 30. Ba6 Rcd8 31. Bb5 ({White should try} 31. Rc1 $18) 31... Qc7 32. Re1 fxe5 {...e4 is the strong threat.} 33. Rxe5 Rxf2 34. Qxf2 Bf7 35. Qe3 Qd6 36. a3 Qf6 (36... a5 $14) 37. Kg2 $16 Qd6 38. Be2 Rd7 39. Bb5 Rd8 40. Qg3 Nf6 41. Re3 (41. Bd3 $14) 41... Ne4 $11 {The position is equal.} 42. Qxd6 Rxd6 43. Kg1 g5 44. Nxe4 dxe4 45. Rxe4 {[%mdl 4096] Endgame KRB-KRB} Kf6 46. Be8 Bxe8 (46... Bc4 {feels hotter.} 47. Kf2 Bd3 48. Re3 Rxd4 49. Bc6 Bc4) 47. Rxe8 Rxd4 {KR-KR} 48. Re2 Rd3 49. Kg2 Rb3 50. Kh2 $1 a5 51. Kg2 a4 52. Kh2 $1 Rb5 53. Kg2 Re5 54. Rc2 Ke7 55. Rc4 b5 56. Rb4 $1 Kd6 57. Kf2 Rc5 58. Ke3 Kc6 59. Kd3 Rc1 60. Re4 Kd5 {White must now prevent ...Rd1+.} 61. Re8 Rh1 62. Re3 $1 Rc1 63. Re8 Rh1 64. Re3 $1 Rc1 65. Re8 Rh1 {Accuracy: White = 67%, Black = 58%.} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.10"]
[Round "4.11"]
[White "Limp, Eduardo Thelio"]
[Black "Moura, Eduardo Eugenio Chav"]
[Result "1/2-1/2"]
[ECO "A41"]
[WhiteElo "2356"]
[BlackElo "2098"]
[Annotator "RC"]
[PlyCount "108"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} d6 {[%emt 0:00:00]} 2. e4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 3. Nd2 {[%emt 0:00:00]} e5 {[%emt 0:00:00]} 4. c3 {[%emt 0:00:14]} Be7 {[%emt 0:00:24]} 5. Ngf3 {[%emt 0:00:12]} Nbd7 {[%emt 0:00:18]} 6. Be2 {[%emt 0:01:37]} O-O {[%emt 0:00:10]} 7. O-O {[%emt 0:00:09]} c6 {[%emt 0:00:07]} 8. a4 {[%emt 0:00:17]} a5 {[%emt 0:03:09]} 9. Re1 {[%emt 0:00:29]} Re8 {[%emt 0:00:13]} 10. Bf1 {[%emt 0:01:28]} Qc7 {[%emt 0:00:43]} 11. Qb3 {[%emt 0:02:16]} h6 {[%emt 0:05:08]} 12. Bc4 {[%emt 0:06:00]} Rf8 {[%emt 0:01:26]} 13. Bd3 {[%emt 0:02:37]} Re8 {[%emt 0:01:40]} 14. Nf1 {[%emt 0:03:35]} Nf8 {[%emt 0:01:04]} 15. Ne3 {[%emt 0:02:57]} Be6 {[%emt 0:08:46]} 16. Qc2 {[%emt 0:00:16]} Ng6 {[%emt 0:02:01]} 17. g3 {[%emt 0:01:29]} Bf8 {[%emt 0:05:35]} 18. Bd2 {[%emt 0:06:27]} Rad8 {[%emt 0:01:26]} 19. c4 {[%emt 0:07:25]} Bc8 {[%emt 0:12:16]} 20. Bc3 {[%emt 0:05:51]} exd4 {[%emt 0:15:22]} 21. Nxd4 {[%emt 0:00:09]} Ne5 {[%emt 0:01:52]} 22. Be2 {[%emt 0:00:17]} Ned7 {[%emt 0:05:34]} 23. Bf3 {[%emt 0:03:57]} Nc5 {[%emt 0:06:02]} 24. Nef5 {[%emt 0:05:45]} Nfd7 {[%emt 0:06:30]} 25. Rad1 {[%emt 0:04:41]} Ne5 {[%emt 0:04:36]} 26. Be2 {[%emt 0:01:46]} g6 {[%emt 0:07:40]} 27. Ne3 Ned7 28. Bf3 {[%emt 0:02:35]} Bg7 {[%emt 0:01:18]} 29. Bg2 Nf6 30. f3 {[%emt 0:02:26]} Ne6 {[%emt 0:04:10]} 31. Nb3 {[%emt 0:02:39]} b6 {[%emt 0:00:07]} 32. f4 {[%emt 0:04:52]} Nd7 {[%emt 0:00:38]} 33. Bxg7 {[%emt 0:03:57]} Kxg7 {[%emt 0:01:00]} 34. Qc3+ {[%emt 0:03:23]} Kh7 {[%emt 0:01:55]} 35. e5 {[%emt 0:01:21]} dxe5 36. Ng4 h5 {[%emt 0:04:52]} 37. Rxd7 {[%emt 0:02:33]} Bxd7 {[%emt 0:00:02]} 38. Nf6+ {[%emt 0:01:12]} Kg7 {[%emt 0:02:20]} 39. Nxe8+ {[%emt 0:12:05]} Rxe8 {[%emt 0:00:02]} 40. Rxe5 {[%emt 0:00:21]} f6 {[%emt 0:00:37]} 41. Re1 {[%emt 0:30:14]} c5 {[%emt 0:05:37]} 42. Bd5 {[%emt 0:00:00]} Nf8 {[%emt 0:05:03]} 43. Rxe8 {[%emt 0:00:00]} Bxe8 {[%emt 0:00:02]} 44. Nd2 {[%emt 0:00:00]} Bxa4 {[%emt 0:01:44]} 45. Ne4 {[%emt 0:00:00]} Qe7 {[%emt 0:00:43]} 46. Kf2 {[%emt 0:00:00]} Ne6 {[%emt 0:05:12]} 47. Qa3 {[%emt 0:00:00]} Bc2 {[%emt 0:01:52]} 48. Qe3 {[%emt 0:00:00]} Nd4 {[%emt 0:04:46]} 49. Nc3 {[%emt 0:00:00]} Qxe3+ {[%emt 0:00:58]} 50. Kxe3 {[%emt 0:00:00]} f5 {[%emt 0:07:57]} 51. h4 {[%emt 0:00:00]} Bb3 {[%emt 0:00:36]} 52. Kd3 {[%emt 0:00:00]} Bc2+ {[%emt 0:00:15]} 53. Kd2 {[%emt 0:00:00]} Bb3 {[%emt 0:00:02]} 54. Kd3 {[%emt 0:00:00]} Bc2+ {[%emt 0:00:03]} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.09"]
[Round "4.12"]
[White "Labussiere, Yago"]
[Black "Ambartsumova, Karina"]
[Result "0-1"]
[ECO "A41"]
[WhiteElo "2091"]
[BlackElo "2341"]
[Annotator "RC"]
[PlyCount "84"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:04:37]} d6 {[%emt 0:00:00]} 2. c4 {[%emt 0:03:14]} e5 {[%emt 0:00:14]} 3. Nf3 {[%emt 0:01:45]} e4 {[%emt 0:01:38]} 4. Ng5 {[%emt 0:02:03]} f5 {[%emt 0:01:26]} 5. Nh3 {[%emt 0:03:48]} Nf6 {[%emt 0:02:41]} 6. Nc3 {[%emt 0:03:17]} Be7 {[%emt 0:03:06]} 7. e3 {[%emt 0:02:45]} O-O {[%emt 0:03:42]} 8. Be2 {[%emt 0:04:20]} c6 {[%emt 0:04:33]} 9. Nf4 {[%emt 0:05:30]} Na6 {[%emt 0:04:12]} 10. h4 {[%emt 0:03:06]} Nc7 {[%emt 0:03:16]} 11. b4 {[%emt 0:12:53]} Ne6 {[%emt 0:22:09]} 12. g3 {[%emt 0:11:30]} Nxf4 {[%emt 0:04:17]} 13. exf4 {[%emt 0:13:23]} d5 {[%emt 0:07:25]} 14. c5 {[%emt 0:00:32]} b6 {[%emt 0:00:49]} 15. a3 {[%emt 0:15:57]} a5 {[%emt 0:04:55]} 16. Be3 {[%emt 0:01:45]} Ba6 {[%emt 0:01:44]} 17. Bxa6 {[%emt 0:04:02]} Rxa6 {[%emt 0:00:05]} 18. O-O {[%emt 0:01:12]} Qd7 {[%emt 0:12:16]} 19. Qe2 {[%emt 0:02:24]} b5 {[%emt 0:02:41]} 20. Rab1 {[%emt 0:01:14]} axb4 {[%emt 0:01:32]} 21. axb4 {[%emt 0:00:20]} Rfa8 {[%emt 0:00:39]} 22. Rb2 {[%emt 0:00:46]} Ne8 {[%emt 0:01:31]} 23. Rc1 {[%emt 0:00:35]} Nc7 {[%emt 0:01:30]} 24. Rcc2 {[%emt 0:00:20]} Ne6 {[%emt 0:00:37]} 25. Ra2 {[%emt 0:00:19]} Bf6 {[%emt 0:01:21]} 26. Qd2 {[%emt 0:00:37]} Rxa2 {[%emt 0:02:48]} 27. Rxa2 {[%emt 0:00:07]} Rxa2 {[%emt 0:00:40]} 28. Nxa2 {[%emt 0:00:02]} Qa7 {[%emt 0:00:10]} 29. Nc3 {[%emt 0:01:27]} Qa3 {[%emt 0:05:44]} 30. Ne2 {[%emt 0:00:16]} Nc7 {[%emt 0:00:39]} 31. Qc3 {[%emt 0:00:45]} Qa4 {[%emt 0:00:16]} 32. Qe1 {[%emt 0:00:35]} Qc2 {[%emt 0:02:14]} 33. Bd2 {[%emt 0:00:29]} Ne6 {[%emt 0:00:17]} 34. Bc3 {[%emt 0:00:33]} Qd3 {[%emt 0:00:36]} 35. Nc1 {[%emt 0:00:29]} Qc4 {[%emt 0:00:24]} 36. Ne2 {[%emt 0:00:29]} Nxd4 {[%emt 0:01:04]} 37. Nxd4 {[%emt 0:00:31]} Bxd4 {[%emt 0:00:01]} 38. Qa1 {[%emt 0:00:21]} Qxc3 {[%emt 0:02:25]} 39. Qa8+ {[%emt 0:00:10]} Kf7 {[%emt 0:00:01]} 40. Qb7+ {[%emt 0:00:29]} Kg6 {[%emt 0:00:17]} 41. Qxc6+ {[%emt 0:02:36]} Kh5 {[%emt 0:00:25]} 42. Qe8+ {[%emt 0:00:57]} Kg4 {[%emt 0:00:46]} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.09"]
[Round "4.13"]
[White "Torella, Rodolfo"]
[Black "Guimaraes, Diogo Duarte"]
[Result "0-1"]
[ECO "C24"]
[WhiteElo "2085"]
[BlackElo "2322"]
[Annotator "RC"]
[PlyCount "48"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} e5 {[%emt 0:19:13]} 2. Bc4 {[%emt 0:00:05]} Nf6 {[%emt 0:00:06]} 3. d3 {[%emt 0:00:16]} c6 {[%emt 0:00:04]} 4. Nf3 {[%emt 0:00:49]} d5 {[%emt 0:00:13]} 5. Bb3 {[%emt 0:00:48]} Bd6 {[%emt 0:00:05]} 6. Nc3 {[%emt 0:05:53]} Be6 {[%emt 0:05:07]} 7. Bg5 {[%emt 0:06:57]} Bc7 {[%emt 0:06:49]} 8. exd5 {[%emt 0:09:58]} cxd5 {[%emt 0:00:06]} 9. Qe2 {[%emt 0:00:45]} Nc6 {[%emt 0:00:48]} 10. O-O-O {[%emt 0:14:13]} O-O {[%emt 0:05:04]} 11. d4 {[%emt 0:05:28]} e4 {[%emt 0:00:49]} 12. Ng1 {[%emt 0:14:28]} h6 {[%emt 0:01:05]} 13. Bh4 {[%emt 0:08:38]} Bb6 {[%emt 0:00:35]} 14. Nxe4 {[%emt 0:05:14]} dxe4 {[%emt 0:00:19]} 15. d5 {[%emt 0:00:07]} Nd4 {[%emt 0:05:13]} 16. Rxd4 {[%emt 0:00:15]} Bxd4 {[%emt 0:00:07]} 17. dxe6 {[%emt 0:00:05]} fxe6 {[%emt 0:00:38]} 18. Bxe6+ {[%emt 0:02:24]} Kh8 {[%emt 0:00:06]} 19. c3 {[%emt 0:02:56]} Qd6 {[%emt 0:00:20]} 20. Bb3 {[%emt 0:03:45]} Bxc3 {[%emt 0:02:10]} 21. Bxf6 {[%emt 0:01:15]} Bxf6 {[%emt 0:00:26]} 22. Qxe4 {[%emt 0:00:27]} Rac8+ {[%emt 0:00:51]} 23. Bc2 {[%emt 0:00:25]} Bg5+ {[%emt 0:00:09]} 24. Kb1 {[%emt 0:00:31]} Qd1+ 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.09"]
[Round "4.14"]
[White "Aranha Filho, Alvaro Z."]
[Black "Urquiza, Marcello de Albuquer"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2304"]
[BlackElo "2075"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,85,49,52,33,55,55,62,53,62,17,114,133,109,102,136,144,204,211,246,252,246,208,203,165,140,141,154,115,120,110,318,341,348,341,308,193,208,103,87,46,113,-70,98,80,125,110,133,129,129,126,479,477,475,467,427,427,471,452,881,852,1236,1262,2410,2352,29992,29993]} 1. c4 c5 2. Nf3 Nf6 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. Re1 O-O 8. e4 d6 9. d4 cxd4 10. Nxd4 Qc8 11. Be3 Nbd7 12. f4 {A30: Symmetrical English: Double Fianchetto and Hedgehog} a6 13. Rc1 Qc7 (13... Nc5 14. Bf2 g6 15. b4 Ncd7 16. b5 h5 17. Nc6 Bxc6 18. bxc6 Nc5 19. Bxc5 bxc5 {½-½ (41) Malakhov,V (2703)-Korobov,A (2674) Sochi 2016}) 14. Bf2 {White is slightly better.} Rac8 15. g4 $146 ({Predecessor:} 15. b3 Rfd8 16. Qe2 Bf8 17. f5 exf5 18. exf5 Bxg2 19. Kxg2 Re8 {0-1 (40) Tratar,M (2466)-Kantorik,M (2335) Pardubice 2002}) 15... Qb8 (15... g6 $11) 16. g5 $16 Ne8 17. Qg4 Nc7 18. Re3 Rfe8 (18... g6 $16 {might work better.} 19. Nd5 Rfe8) 19. Rh3 $1 $18 Nf8 20. f5 exf5 21. exf5 Bxg2 22. Kxg2 {Threatens to win with f6.} Qb7+ {[#]} 23. Kg1 $1 {Hoping for f6.} Bd8 24. f6 g6 25. Qh4 {aiming for Qh6.} Nce6 $2 (25... Re5 $16 26. Bg3 (26. Qh6 Ne8 $16) 26... b5) 26. Nxe6 fxe6 27. Ne4 Rc6 28. Bg3 e5 {[#]} 29. Rf1 (29. Rd1 $1 $18) 29... Qf7 $16 30. b3 Ne6 (30... b5 $14) 31. Nc3 $2 (31. Nf2 $16) 31... Nd4 $2 (31... b5 $1 $15 {keeps the upper hand.}) 32. Qe4 $36 {[%mdl 2048] Strongly threatening Bf2. White is in control.} Rc8 33. Qd5 Rc7 34. Ne4 Qxd5 35. cxd5 Nf5 $2 {[%mdl 8192] [#]} (35... Rf8 $16 {is more resistant.}) 36. Rxf5 $1 $18 {[%mdl 576] Remove Defender} gxf5 37. Nxd6 {[%mdl 64] Double Attack} Rf8 38. Bxe5 Rc1+ 39. Kf2 Rc2+ (39... Rc5 $142 40. Nxf5 Rxd5) 40. Kf3 Rc5 41. Nxf5 {Nh6+ would kill now.} Kf7 42. Ke4 Kg6 43. Rh6+ {Accuracy: White = 67%, Black = 16%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.09"]
[Round "4.15"]
[White "Fernandez, Maria Florencia"]
[Black "Sobrero, Sebastian"]
[Result "1-0"]
[ECO "D45"]
[WhiteElo "2241"]
[BlackElo "2059"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,53,26,43,23,43,43,60,48,39,52,82,77,90,65,91,65,127,122,139,127,133,143,177,108,105,115,108,108,104,122,141,143,205,203,266,226,798,792,1164,1139]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. e3 Nbd7 6. b3 Be7 7. Bd3 O-O 8. O-O c5 9. Bb2 {D46: Semi-Slav: 5 e3 Nbd7 6 Bd3, Black avoids the Meran} b6 10. cxd5 exd5 11. Rc1 {White is slightly better.} Bb7 12. Qe2 cxd4 (12... Re8 13. Rfd1 g6 14. Na4 Bf8 15. dxc5 bxc5 16. Ba6 Bxa6 17. Qxa6 Re6 18. Qb7 Rb8 19. Qxa7 Ra8 20. Qb7 Rb8 21. Qa7 Ra8 22. Qb7 Rb8 23. Qa7 Ra8 {½-½ (23) Bai,J (2568)-Zhou,J (2617) China 2018}) 13. Nxd4 Nc5 14. Bb1 Re8 $146 ({Predecessor:} 14... Ba6 15. Ncb5 Qd7 16. Bf5 Bxb5 17. Qxb5 Qxb5 18. Nxb5 g6 19. Bb1 {½-½ (50) Byway,P (2054)-Grigoryan,M (2057) England 2017}) 15. Rfd1 Bf8 ({Black should try} 15... a6 $14) 16. b4 $16 Ne6 {[#]} 17. Ncb5 $1 Nxd4 18. Bxd4 Ba6 19. Bd3 ({Better is} 19. Qc2 $18 {Threatens to win with Bxf6.} Ne4 20. Nc7 {[%mdl 64] Double Attack}) 19... Bxb5 20. Bxb5 {Bxf6 is the strong threat.} Re6 21. Bc6 Rc8 22. b5 Ne4 23. Bb2 Qh4 (23... Rd6 $16 {might work better.} 24. f3 Nf6) 24. g3 $18 Rg6 25. Bxd5 Re8 $2 (25... Rxc1 26. Rxc1 Nc5) 26. Rc4 Bc5 {[#]} 27. Qf3 $1 {Accuracy: White = 67%, Black = 20%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.09"]
[Round "4.16"]
[White "Donoso Diaz, Sebastian"]
[Black "Lage, Pedro Ferreira"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2234"]
[BlackElo "2021"]
[Annotator "TA"]
[PlyCount "35"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,35,13,24,9,15,-39,-20,-36,-26,-42,61,61,50,75,167,-40,412,-114,164,128,137,136,133,65,65,40,64,56]} 1. Nf3 d5 2. e3 c6 3. c4 Bf5 (3... Nf6 4. Nc3 e6 5. b3 Bd6 6. Bb2 O-O 7. Be2 Nbd7 8. Rc1 a6 9. d4 Re8 10. O-O e5 11. dxe5 Nxe5 12. cxd5 c5 13. Nxe5 Bxe5 14. Bf3 Qd6 15. h3 b5 {1-0 (31) Nepomniachtchi,I (2763)-Saric,I (2695) St Petersburg 2018}) 4. cxd5 cxd5 5. Qb3 Qc7 6. Na3 {A11: English Opening: 1...c6} Nf6 7. d4 ({Better is} 7. Nb5 $11 Qc8 8. d3) 7... Nc6 8. Bd2 {The position is equal.} a6 9. Rc1 $1 Qd7 (9... e6 $15) 10. Ne5 $14 Nxe5 11. dxe5 Ng4 $146 {[#]} (11... Ne4 $16) ({Predecessor:} 11... Ne4 12. Nb5 Rc8 13. Rxc8+ Qxc8 14. Nd4 e6 15. Nxf5 exf5 {1-0 (48) Rinaldi,F (2140)-Panarello,G Cutro 2005}) 12. f3 $2 ({White should play} 12. Nb5 $1 $18 {[%cal Rb5c7][%mdl 512]} Rc8 (12... axb5 13. Bxb5) 13. Rxc8+ Qxc8 14. Nd4 (14. Qxd5 Be6 $16)) 12... e6 $2 {[%mdl 8192]} (12... Nxe5 $15 13. Nc2 Bxc2 14. Qxc2 e6) 13. h3 $2 (13. fxg4 $18 Be4 14. Nb5 $1 {[%mdl 512]}) 13... Nh6 $2 {[%mdl 8192]} (13... Nxe5 $17 {keeps the pressure on.} 14. Nc2 Rc8) 14. Nb5 {Strongly threatening Nc7+.} Rc8 {[#]} 15. Rxc8+ $1 Qxc8 {[#]} 16. Qa4 (16. Bb4 $1 $16) 16... Qc6 $1 {[%mdl 64] Pin} 17. Be2 Bc5 $1 18. Qb3 {Accuracy: White = 32%, Black = 26%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.10"]
[Round "4.16"]
[White "Donoso Diaz, Sebastian"]
[Black "Lage, Pedro Ferreira"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2234"]
[BlackElo "2021"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,81,31,31,7,14,-18,-10,-25,-11,-33,79,80,87,85,160,130,156,111,138,133,92,95,125,56,78,23,22,0,0,-7,8,-104,0,-28,39,-2,0,0,0,0,27,-19,0,-472,72,75,64,58,56,64,74,77,85,85,85,85,85,64,89,65,125,65,65,41,39,41,269,243,234,208,206,165,5206,2312]} 1. Nf3 d5 2. e3 c6 3. c4 Bf5 (3... Nf6 4. Nc3 a6 5. Qc2 g6 6. d4 Bg7 7. Bd3 O-O 8. O-O e6 9. b3 Nbd7 10. Bb2 b6 11. e4 dxe4 12. Nxe4 Qc7 13. Nxf6+ Bxf6 14. Nd2 c5 15. Be4 Bb7 16. Nf3 Bxe4 17. Qxe4 {½-½ (53) Ding,L (2811)-Shankland,S (2705) chess.com INT 2019}) 4. cxd5 cxd5 5. Qb3 Qc7 6. Na3 {A11: English Opening: 1...c6} Nf6 7. d4 Nc6 8. Bd2 {The position is equal.} a6 9. Rc1 Qd7 (9... e6 $15 {keeps the upper hand.}) 10. Ne5 $16 Nxe5 11. dxe5 Ng4 $146 (11... Ne4 $142) ({Predecessor:} 11... Ne4 12. Nb5 Rc8 13. Rxc8+ Qxc8 14. Nd4 e6 15. Nxf5 exf5 {1-0 (48) Rinaldi,F (2140)-Panarello,G Cutro 2005}) 12. f4 e6 13. h3 Nh6 {[#]} 14. Nb5 $1 {[%cal Rb5c7][%mdl 512]} Rc8 (14... axb5 15. Bxb5) 15. Rxc8+ Qxc8 16. Qa4 ({Better is} 16. Bb4 $16) 16... Qc6 $1 $14 {[%mdl 64] Pin} 17. Be2 (17. Kf2 $1 $16) 17... Bc5 $1 $11 18. Nc7+ Kd7 $1 19. Nb5 $1 Rc8 $132 {[%mdl 2048] Black is not keeping still} 20. Qb3 (20. Nc3 $11) 20... Ke7 {[#]} (20... Be4 $17 {Strongly threatening ...Nf5.} 21. Rh2 Qb6) 21. Nd6 $1 {[%mdl 512]} Rc7 (21... Bxd6 $11 22. exd6+ Ke8) 22. Bf3 (22. g4 $5 {[%cal Rg4f5]} Bg6 23. h4 $14) 22... Be4 23. Bxe4 dxe4 24. g4 f6 25. O-O Nf7 26. f5 $2 {[%mdl 8192]} (26. exf6+ $11 {and White is okay.} gxf6 27. Nxf7 Kxf7 28. f5) 26... Qd5 $2 (26... Nxe5 $19 27. Qxe6+ Kf8) 27. Qxd5 $16 exd5 28. Nxf7 Kxf7 {[%mdl 4096] Endgame KRB-KRB} 29. e6+ Ke7 30. Rc1 Bd6 31. Rxc7+ Bxc7 {KB-KB} 32. Bb4+ Ke8 33. Bc5 Be5 34. b3 Kd8 ({Black should try} 34... g6 $14) 35. Bf8 (35. h4 $16) 35... g6 $14 36. fxg6 hxg6 37. h4 {Hoping for h5.} f5 $2 (37... d4 $14) 38. h5 $18 {And now h6 would win.} gxh5 39. gxh5 {h6 is the strong threat.} Ke8 {[#]} 40. Bc5 $1 f4 $2 {[#]} (40... Bg7) 41. Bd4 $1 {Accuracy: White = 45%, Black = 34%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.10"]
[Round "5.1"]
[White "Martinez Alcantara, Jose Eduardo"]
[Black "Cruz, Cristhian"]
[Result "1/2-1/2"]
[ECO "C10"]
[WhiteElo "2592"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "40"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,40,0,4,0,25,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Bd3 c5 8. dxc5 Bxc5 9. Qe2 O-O 10. O-O b6 11. Bg5 Bb7 12. Rad1 {Threatens to win with Bxh7+! C10: French with 3 Nc3: Unusual Black 3rd moves and 3...dxe4} Qc7 13. Bxf6 (13. Ne5 Rfd8 14. Rfe1 Rd5 15. Bf4 Rad8 16. Bg3 Qc8 17. a3 a5 18. c3 h6 19. h3 Bd6 {1-0 (106) Movsesian,S (2659)-Jussupow,A (2581) Doha 2014}) 13... gxf6 {The position is equal.} 14. Be4 Rfd8 15. c3 Rac8 16. g3 a6 17. Bxb7 Qxb7 18. Rxd8+ $146 ({Predecessor:} 18. Nd4 b5 19. a3 f5 20. Qh5 {½-½ (20) Abreu Delgado,A (2480)-Perez Garcia,R (2425) Havana 2002}) 18... Rxd8 19. Rd1 Rxd1+ 20. Qxd1 Qe4 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.10"]
[Round "5.2"]
[White "Vazquez, Guillermo"]
[Black "Diamant, Andre"]
[Result "1/2-1/2"]
[ECO "B56"]
[WhiteElo "2506"]
[BlackElo "2533"]
[Annotator "TA"]
[PlyCount "35"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,22,18,13,31,18,13]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g3 g6 7. Nde2 Bg7 8. Bg2 O-O 9. O-O Rb8 10. a4 b6 {B70: Sicilian Dragon: 6 g3 and 6 Be2 (without a later Be3)} 11. h3 Bb7 (11... Ba6 12. Be3 Nd7 13. Re1 Bxe2 14. Rxe2 Bxc3 15. bxc3 Qc7 16. f4 b5 17. Kh2 Rfc8 18. Rd2 {1-0 (79) Le,Q (2708)-Korobov,A (2679) Khanty-Mansiysk 2019}) {Predecessor:} 12. Nd5 $146 e6 13. Ndc3 Qe7 14. Bf4 Rbd8 15. Qc1 d5 16. exd5 exd5 17. Re1 Qd7 18. Rd1 {1-0 (41) Pavlidis,A (2479)-Gaehwiler,G (2288) Legnica 2013} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.10"]
[Round "5.3"]
[White "Zambrana, Oswaldo"]
[Black "Di Berardino, Diego Rafael"]
[Result "0-1"]
[ECO "B41"]
[WhiteElo "2445"]
[BlackElo "2489"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,52,33,0,0,0,0,0,0,0,0,0,0,-68,-63,-79,-97,-97,-92,-231,-214,-205,-194,-190,-184,-354,-350,-437,-444,-435,-450,-483,-486,-498,-492,-485,-480,-531,-524,-707,-370,-494,-497]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Nc2 Bxc3+ $1 {B41: Sicilian: Kan Variation: 5 c4} 8. bxc3 Qa5 9. Qd3 Nc6 {The position is equal.} 10. Be2 O-O $146 ({Predecessor:} 10... Qe5 11. f3 d5 12. exd5 exd5 13. f4 Qf5 14. cxd5 Nxd5 15. O-O {½-½ (27) Baghdasaryan,V (2472)-Zubov,A (2614) Batumi 2016}) 11. Ba3 Rd8 $1 12. c5 (12. Bd6 $1 $11) 12... b6 $1 $15 13. Bb4 Qa4 14. cxb6 {[#]} d5 $1 {Strongly threatening ...a5.} 15. O-O (15. e5 $17 Nxe5 16. Qd1) 15... dxe4 $19 16. Qc4 Qxc2 17. Qxc6 {[#]} Bd7 $1 {[%cal Rd7c6]} 18. Qd6 $2 (18. Qb7 Qxe2 19. Be7) 18... Qxe2 19. b7 Rab8 20. Ba5 Re8 21. Rab1 Bb5 22. c4 Qxc4 23. Rfc1 Qd3 24. Qc7 e3 {And now ...exf2+ would win.} 25. Bb6 Qd7 26. a4 Rxb7 {Accuracy: White = 29%, Black = 100%.} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.10"]
[Round "5.4"]
[White "Galego, Luis"]
[Black "Perdomo, Leandro"]
[Result "1/2-1/2"]
[ECO "A48"]
[WhiteElo "2483"]
[BlackElo "2474"]
[Annotator "TA"]
[PlyCount "32"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,32,48,0,20,13,23,24,39,-18,30,22,23,21,38,20,16,12,15,13,18]} 1. Nf3 Nf6 2. d4 g6 3. e3 Bg7 4. Be2 O-O 5. O-O d6 6. c4 c5 7. Nc3 Bf5 8. b3 Ne4 {E61: King's Indian: Early deviations for White, including Smyslov System} (8... e5 9. Bb2 Nc6 10. d5 Nb4 11. Ne1 e4 12. a3 Na6 13. Nc2 h5 14. Rb1 Ng4 15. Bxg4 hxg4 16. Ne2 Bxb2 17. Rxb2 {½-½ (17) Miladinovic,I (2579)-Jovanovic,Z (2546) Neum 2008}) 9. Bb2 Nxc3 10. Bxc3 Nc6 {White has an edge.} 11. Rc1 (11. Qd2 $14) 11... cxd4 $146 ({Predecessor:} 11... e5 12. d5 Nb8 13. Nd2 Qe7 14. Re1 Bc8 15. Nf1 f5 16. f4 Nd7 17. g3 {0-1 (41) Krnic,Z (2470)-Simic,R (2440) Borovo 1981}) 12. Nxd4 Nxd4 13. Bxd4 Qa5 14. Bxg7 Kxg7 {The position is equal.} 15. Qd4+ Kg8 16. Qb2 Be4 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "5.5"]
[White "Donoso Diaz, Sebastian"]
[Black "Supi, Luis Paulo"]
[Result "0-1"]
[ECO "A30"]
[WhiteElo "2234"]
[BlackElo "2578"]
[Annotator "ChessBase"]
[PlyCount "117"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. c4 {[%emt 0:00:00]} c5 {[%emt 0:00:04]} 2. Nf3 {[%emt 0:00:01]} Nf6 {[%emt 0:01:07]} 3. Nc3 {[%emt 0:02:30]} e6 {[%emt 0:02:10]} 4. e3 {[%emt 0:00:56]} d5 {[%emt 0:01:34]} 5. cxd5 {[%emt 0:00:47]} exd5 {[%emt 0:00:37]} 6. d4 {[%emt 0:01:14]} Nc6 {[%emt 0:00:34]} 7. Be2 {[%emt 0:00:18]} Bd6 {[%emt 0:00:41]} 8. dxc5 {[%emt 0:01:06]} Bxc5 {[%emt 0:00:03]} 9. O-O {[%emt 0:00:31]} O-O {[%emt 0:00:06]} 10. b3 {[%emt 0:00:58]} a6 {[%emt 0:03:58]} 11. Bb2 {[%emt 0:00:12]} Ba7 {[%emt 0:01:33]} 12. Rc1 {[%emt 0:07:37]} Qd6 {[%emt 0:03:58]} 13. Na4 {[%emt 0:11:23]} Rd8 {[%emt 0:01:39]} 14. Nd4 {[%emt 0:04:31]} Bd7 {[%emt 0:10:29]} 15. Qd3 {[%emt 0:23:14]} Ne5 {[%emt 0:12:13]} 16. Qb1 {[%emt 0:05:15]} Neg4 {[%emt 0:01:35]} 17. Bxg4 {[%emt 0:04:38]} Nxg4 {[%emt 0:00:14]} 18. Nf3 {[%emt 0:00:18]} d4 {[%emt 0:08:38]} 19. h3 {[%emt 0:05:37]} Nxf2 {[%emt 0:02:20]} 20. Rxf2 {[%emt 0:00:47]} dxe3 {[%emt 0:00:12]} 21. Re2 {[%emt 0:00:59]} Bb5 {[%emt 0:01:09]} 22. Rce1 {[%emt 0:07:30]} Bxe2 {[%emt 0:05:38]} 23. Rxe2 {[%emt 0:00:12]} Rac8 {[%emt 0:02:02]} 24. Qe4 {[%emt 0:06:32]} b5 {[%emt 0:04:48]} 25. Nc3 {[%emt 0:01:11]} Qd3 {[%emt 0:03:04]} 26. Qh4 {[%emt 0:01:46]} Re8 {[%emt 0:04:53]} 27. Qe1 {[%emt 0:02:44]} b4 {[%emt 0:03:26]} 28. Na4 {[%emt 0:01:34]} Rc2 {[%emt 0:01:28]} 29. Rxc2 {[%emt 0:00:06]} Qxc2 {[%emt 0:00:12]} 30. Bd4 {[%emt 0:00:44]} Bxd4 {[%emt 0:00:33]} 31. Nxd4 {[%emt 0:00:06]} Qd2 {[%emt 0:00:01]} 32. Nf3 {[%emt 0:00:32]} Qxa2 {[%emt 0:05:19]} 33. Qxb4 {[%emt 0:00:12]} Qf2+ {[%emt 0:00:20]} 34. Kh2 {[%emt 0:00:18]} e2 {[%emt 0:00:03]} 35. Ne1 {[%emt 0:01:25]} h5 {[%emt 0:01:16]} 36. Nb2 {[%emt 0:00:44]} h4 {[%emt 0:06:57]} 37. Nbd3 {[%emt 0:00:05]} Qg3+ {[%emt 0:00:05]} 38. Kh1 {[%emt 0:00:41]} Re3 {[%emt 0:00:44]} 39. Qa4 {[%emt 0:01:13]} Qd6 {[%emt 0:03:36]} 40. Qc4 {[%emt 0:03:38]} g6 {[%emt 0:05:37]} 41. b4 {[%emt 0:31:50]} Qf6 {[%emt 0:32:46]} 42. b5 {[%emt 0:00:00]} axb5 {[%emt 0:00:00]} 43. Qxb5 {[%emt 0:00:00]} Qd4 {[%emt 0:00:00]} 44. Kh2 {[%emt 0:00:00]} Kg7 {[%emt 0:00:00]} 45. Qa6 {[%emt 0:00:00]} Re6 {[%emt 0:00:00]} 46. Qb5 {[%emt 0:00:00]} Rf6 {[%emt 0:00:00]} 47. Qe5 {[%emt 0:00:00]} Qxe5+ {[%emt 0:00:00]} 48. Nxe5 {[%emt 0:00:00]} Rf1 {[%emt 0:00:00]} 49. N5f3 {[%emt 0:00:00]} g5 {[%emt 0:00:00]} 50. g4 {[%emt 0:00:00]} f6 {[%emt 0:00:00]} 51. Kg2 {[%emt 0:00:00]} Kf7 {[%emt 0:00:00]} 52. Nc2 {[%emt 0:00:00]} Ke7 {[%emt 0:00:00]} 53. Nfe1 {[%emt 0:00:00]} Kd7 {[%emt 0:00:14]} 54. Nd3 {[%emt 0:00:00]} Kc7 {[%emt 0:01:14]} 55. Nde1 {[%emt 0:00:00]} Kb6 {[%emt 0:00:58]} 56. Nd3 {[%emt 0:00:00]} Ka5 {[%emt 0:01:10]} 57. Nde1 {[%emt 0:00:00]} Ka4 {[%emt 0:02:01]} 58. Nf3 {[%emt 0:06:47]} Rxf3 {[%emt 0:00:15]} 59. Kh2 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.10"]
[Round "5.6"]
[White "Mascarenhas, Alberto Pinheiro"]
[Black "Hernandez Guerrero, Gilberto"]
[Result "0-1"]
[ECO "A21"]
[WhiteElo "2221"]
[BlackElo "2554"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,109,0,0,-2,-1,-18,-23,-59,-61,-70,-44,-40,-33,-42,-18,-47,-40,-33,-32,-54,-54,-61,-58,-76,-72,-68,-64,-74,-66,-60,-28,-58,-32,-81,-70,-88,-56,-44,-40,-62,0,0,0,0,0,-54,-50,-117,-116,-181,-167,-203,-150,-229,-231,-202,-203,-320,-316,-312,-309,-557,-576,-576,-576,-576,-576,-562,-459,-554,-449,-441,-393,-672,-677,-718,-757,-733,-726,-726,-712,-682,-674,-2457,-2302,-12826,-11500,-12834,-12832,-12835,-12835,-12837,-12837,-12838,-12837,-12839,-12837,-29984,-29985,-12847]} 1. c4 e5 2. Nc3 Bb4 3. Nf3 Bxc3 4. dxc3 Nc6 5. g3 Nge7 6. Bg2 d6 7. b3 {A21: English Opening: 1...e5 2 Nc3} (7. c5 d5 8. b4 f6 9. Nd2 Be6 10. Nb3 Qc8 11. O-O Bh3 12. b5 Nd8 13. Bxh3 Qxh3 14. c6 bxc6 {½-½ (48) Zhao,J (2627)-Ni,H (2674) China 2019}) 7... h6 8. h4 $146 ({Predecessor:} 8. O-O Be6 9. Ba3 b6 10. Ne1 Qd7 11. e4 Bh3 12. Qe2 O-O 13. Rd1 Qe6 14. Nc2 Bxg2 15. Kxg2 {0-1 (82) Van Hoolandt,P (2298)-Sulava,N (2516) Monaco 2003}) 8... Be6 9. Be3 {Black has an edge.} Qd7 10. Qd2 a5 11. a4 Rd8 12. O-O-O Qc8 13. Qb2 O-O 14. Nd2 f5 15. f4 d5 16. Bc5 e4 17. cxd5 Rxd5 18. Bxe7 Nxe7 19. c4 Rd6 20. Nb1 Qe8 21. Qc3 Nc6 22. Rxd6 cxd6 23. Kb2 d5 24. cxd5 Bxd5 25. Na3 Qh5 (25... Qe6 $15) 26. Rd1 $1 $11 {[%cal Rd1d5]} Be6 27. Bf1 Rc8 28. Qe3 (28. Nc4 $11) 28... Qf7 $36 {[%mdl 2048] Black has some pressure.} 29. Rc1 (29. Rd6 $15) 29... Qf6+ $17 30. Kb1 (30. Qc3 $17) 30... Rd8 $19 31. Nb5 h5 32. Bh3 (32. Qc3 $17 {was called for.}) 32... g6 33. Bf1 Bf7 34. Na3 (34. Qc3 $142 Qxc3 35. Nxc3) 34... Qd4 35. Qxd4 Nxd4 36. e3 $2 (36. Kb2 Nxb3 37. Rc7) 36... Nxb3 37. Re1 Nd2+ 38. Kb2 Nxf1 39. Rxf1 {[%mdl 4096] Endgame KRB-KRN} Rd3 {[#] White must now prevent ...Rb3+.} 40. Nc2 Bb3 41. Nd4 Bxa4 42. Rc1 $2 (42. Ra1 b5 43. Ra3) 42... Rxe3 43. Rc8+ Kf7 44. Rc7+ Kf6 45. Rxb7 Rd3 46. Rb6+ Ke7 47. Ne6 {[#]} e3 {Played: Rd3-d6} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.10"]
[Round "5.7"]
[White "Cezila Jr, Rubens"]
[Black "Alonso, Salvador"]
[Result "1-0"]
[ECO "B47"]
[WhiteElo "2191"]
[BlackElo "2481"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,89,33,44,3,14,4,43,32,46,46,70,77,72,36,68,67,83,71,112,102,107,93,112,104,100,105,110,98,98,84,106,52,119,144,226,89,178,182,122,0,0,0,83,83,85,37,14,0,0,0,0,0,0,-28,-25,-89,-76,-206,-195,-379,0,0,48,45,410,375,467,467,457,449,467,466,387,327,331,323,344,318,877,847,1335,1270]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. g4 {B47: Sicilian: Taimanov: 5 Nc3 Qc7 6 f4, 6 g3 and 6 Be2} (6. Be3 a6 7. Qf3 Ne5 8. Qg3 h5 9. Bg5 f6 10. Bf4 Ne7 11. O-O-O Kf7 12. Bxe5 Qxe5 13. f4 h4 14. Qe3 Qc7 {1-0 (35) Ding,L (2811)-Shankland,S (2705) chess.com INT 2019}) 6... a6 7. h4 Nf6 8. Nxc6 $1 {White is slightly better.} Qxc6 9. Bg2 d6 $146 ({Predecessor:} 9... Bb4 10. g5 Ng4 11. Rh3 f5 12. gxf6 Nxf6 13. Rg3 O-O {1-0 (26) Reinaldo Castineira,R (2493)-Medarde Santiago,L (2341) Santiago de Compostela 2018}) 10. g5 Nd7 11. Qe2 Qc7 12. Be3 b5 13. a3 Bb7 14. O-O-O Ne5 15. Rh3 Nc4 16. Bd4 e5 17. Nd5 Bxd5 18. exd5 Be7 19. Bc3 a5 20. b3 ({White should play} 20. f4 $16) 20... Nxa3 {[#]} (20... b4 $1 $14) 21. Bxe5 $1 $16 {[%mdl 512]} O-O (21... dxe5 $16 22. d6 {[%mdl 64] Discovered Attack} Bxd6 23. Bxa8 O-O) 22. Rc3 (22. Bb2 $1 $18 {[%cal Rb2a3] is the precise move to win.} b4 23. Be4) 22... Qd8 (22... Qb7 $16) 23. Bd4 $1 $18 Re8 24. Qd3 (24. Re3 $16 Bf8 25. Rxe8 Qxe8 26. Qxe8 Rxe8 27. Bb6) 24... b4 $36 {[%mdl 2048] Black is pushing.} 25. Rc6 Bf8 (25... Bxg5+ $1 $11 26. hxg5 Qxg5+ {[%mdl 64] Double Attack} 27. f4 Qxg2) 26. Be4 $16 g6 27. f4 {And now Bf6 would win.} Qe7 28. Re1 Bg7 29. Bxg7 Kxg7 30. h5 $1 {[%cal Rh5h6]} Kg8 31. Re2 (31. Qh3 $5 {[%cal Rh5g6]}) 31... Qa7 {Hoping for ...Qg1+.} 32. c3 ({Don't play} 32. Rxd6 Qg1+ 33. Qd1 Qg3 $17) (32. Re1 $11 {keeps the balance.}) 32... bxc3 {White must now prevent ...Qg1+.} 33. Rxc3 (33. Qe3 $17 {was necessary.}) 33... a4 $19 {Threatens to win with ...axb3.} 34. b4 $2 {[#]} (34. Kd1) 34... Rac8 $2 (34... Nb5 $1 $19 {[%cal Rb5c3][%mdl 512]} 35. Qxb5 a3) 35. Rc6 {aiming for Kb2.} Rb8 (35... Qb6 $5) 36. Qxa3 {Strongly threatening Rc4.} Qd4 $2 {[%mdl 8192]} (36... Rxe4 $14 37. Rxe4 Qg1+ 38. Kb2 Qg2+ {[%mdl 64] Double Attack} 39. Ka1 Qxe4 {[%mdl 64] Double Attack}) 37. Qc3 $18 Rxb4 38. Qxd4 Rxd4 39. Bc2 Rb8 ({Weaker is} 39... Rxe2 40. Rc8+ Re8 41. Rxe8+ Kg7 42. h6#) 40. Rxd6 Rxf4 41. Re4 Rf1+ 42. Kd2 a3 {Black wants to play ...a2.} 43. Ra6 Rc8 $2 (43... Rf5 44. d6 Rd5+ 45. Ke3 gxh5) 44. Bd3 Rf5 45. Rc4 {Accuracy: White = 44%, Black = 42%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "5.8"]
[White "Carraro, Denise"]
[Black "Molina, Roberto Junio Brito"]
[Result "1-0"]
[ECO "B83"]
[WhiteElo "2177"]
[BlackElo "2448"]
[Annotator "ChessBase"]
[PlyCount "99"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:02]} 2. Nf3 {[%emt 0:00:00]} e6 {[%emt 0:00:03]} 3. d4 {[%emt 0:00:00]} cxd4 {[%emt 0:00:04]} 4. Nxd4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:11]} 5. Nc3 {[%emt 0:00:00]} d6 {[%emt 0:00:04]} 6. Be2 {[%emt 0:00:49]} Nc6 {[%emt 0:00:21]} 7. Be3 {[%emt 0:00:16]} Be7 {[%emt 0:00:22]} 8. O-O {[%emt 0:00:05]} O-O {[%emt 0:00:21]} 9. f4 {[%emt 0:01:43]} a6 {[%emt 0:01:42]} 10. a4 {[%emt 0:00:05]} Qc7 {[%emt 0:01:01]} 11. Kh1 {[%emt 0:00:10]} Bd7 {[%emt 0:01:50]} 12. Qe1 {[%emt 0:05:46]} Nxd4 {[%emt 0:01:31]} 13. Bxd4 {[%emt 0:00:02]} Bc6 {[%emt 0:00:23]} 14. Qg3 {[%emt 0:05:49]} g6 {[%emt 0:04:33]} 15. Bd3 {[%emt 0:13:32]} e5 {[%emt 0:16:07]} 16. fxe5 {[%emt 0:00:41]} Nh5 {[%emt 0:00:14]} 17. Qf2 {[%emt 0:00:58]} dxe5 {[%emt 0:00:13]} 18. Bb6 {[%emt 0:00:02]} Qc8 {[%emt 0:06:48]} 19. Be3 {[%emt 0:14:07]} Ng7 {[%emt 0:15:51]} 20. Bh6 {[%emt 0:10:08]} Kh8 {[%emt 0:00:54]} 21. Qg3 {[%emt 0:08:32]} f6 {[%emt 0:00:28]} 22. Rad1 {[%emt 0:02:28]} Qe8 {[%emt 0:04:41]} 23. b3 {[%emt 0:14:22]} Rd8 {[%emt 0:00:34]} 24. Nd5 {[%emt 0:03:46]} Bxd5 {[%emt 0:01:18]} 25. exd5 {[%emt 0:00:02]} Bd6 {[%emt 0:00:54]} 26. Qe3 {[%emt 0:00:53]} f5 {[%emt 0:00:49]} 27. c4 {[%emt 0:08:55]} Rc8 {[%emt 0:02:17]} 28. Qb6 {[%emt 0:02:24]} Qe7 {[%emt 0:00:42]} 29. Bg5 {[%emt 0:00:06]} Qxg5 {[%emt 0:07:42]} 30. Qxd6 {[%emt 0:00:04]} e4 {[%emt 0:00:32]} 31. Bc2 {[%emt 0:05:59]} Rce8 {[%emt 0:02:59]} 32. Rde1 {[%emt 0:01:47]} Kg8 {[%emt 0:13:00]} 33. Qb4 {[%emt 0:01:10]} Rf7 {[%emt 0:01:27]} 34. c5 {[%emt 0:00:21]} Nh5 {[%emt 0:00:39]} 35. Qd4 {[%emt 0:00:32]} a5 {[%emt 0:02:52]} 36. d6 {[%emt 0:00:20]} Nf4 {[%emt 0:06:23]} 37. Qf2 Ne6 {[%emt 0:02:43]} 38. Bxe4 {[%emt 0:00:43]} f4 {[%emt 0:02:38]} 39. Bxb7 {[%emt 0:00:40]} Rxb7 {[%emt 0:01:27]} 40. c6 {[%emt 0:00:14]} Rbb8 {[%emt 0:02:46]} 41. c7 {[%emt 0:32:28]} Nxc7 {[%emt 0:03:39]} 42. dxc7 {[%emt 0:00:00]} Rbc8 {[%emt 0:00:01]} 43. Rxe8+ {[%emt 0:00:00]} Rxe8 {[%emt 0:00:01]} 44. Qc2 {[%emt 0:00:00]} Rc8 {[%emt 0:01:19]} 45. Qc4+ {[%emt 0:00:00]} Kg7 {[%emt 0:01:37]} 46. Qd4+ {[%emt 0:00:00]} Kg8 {[%emt 0:00:23]} 47. Qd7 {[%emt 0:00:00]} Qf5 {[%emt 0:00:21]} 48. Rd1 {[%emt 0:00:00]} f3 {[%emt 0:02:03]} 49. Qxc8+ Qxc8 {[%emt 0:00:02]} 50. Rd8+ {[%emt 0:00:00]} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "5.9"]
[White "Rocha, Vitor Firmo de Souza"]
[Black "Roselli Mailhe, Bernardo"]
[Result "1/2-1/2"]
[ECO "C03"]
[WhiteElo "2169"]
[BlackElo "2442"]
[Annotator "TA"]
[PlyCount "129"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,129,21,16,31,0,0,0,0,0,0,-4,0,0,0,0,0,-8,-2,-12,1,8,71,26,25,0,22,-10,0,-29,-32,-33,-28,-17,-27,-62,0,-74,-83,-121,-23,-26,-20,-16,-21,-89,-85,-82,-89,-83,-75,-100,-105,-104,-100,-100,-82,-119,-95,-119,-127,-153,-24,-24,-24,-24,-26,-23,-8,-8,0,-8,-2,-8,-8,-8,-8,-32,-32,-32,-32,-79,-78,-98,-17,-17,-23,-18,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e6 2. d4 d5 3. Nd2 a6 4. Ngf3 c5 5. dxc5 Bxc5 6. Nb3 Ba7 7. exd5 exd5 8. Bd3 Qe7+ 9. Qe2 Nc6 {C08: French Tarrasch: 3...c5 4 exd5 exd5 sidelines} (9... Qxe2+ 10. Bxe2 Nc6 11. c3 Bf5 12. O-O Nf6 13. Rd1 O-O 14. Nfd4 Bg6 15. Be3 Ne5 16. Na5 Rab8 17. h3 {1-0 (37) Fedorchuk,S (2669)-Jussupow,A (2582) Wroclaw 2014}) 10. Be3 (10. h3 {keeps more tension.} Bd7 11. c3 Qxe2+ 12. Bxe2 Nf6 13. Bd3) 10... Bxe3 11. Qxe3 Qxe3+ 12. fxe3 Nf6 13. O-O-O $146 ({Predecessor:} 13. Nbd4 O-O 14. O-O Re8 15. Rfe1 {½-½ (74) Walker,M (2078)-Roselli Mailhe,B (2439) Batumi 2018}) 13... O-O 14. h3 Re8 15. Rhe1 b6 16. Nbd4 Na5 17. Nd2 Bb7 18. g4 Rad8 (18... b5 $11 {keeps the balance.}) 19. b3 b5 20. Kb2 g6 21. c3 Re7 22. Re2 Rde8 23. Rde1 Nc6 24. Nxc6 Bxc6 25. b4 h5 (25... Kg7 $15) 26. g5 (26. Rf1 $11 Rxe3 27. Rxe3 Rxe3 28. Rxf6 Rxd3 29. Kc2 Rxh3 30. gxh5) 26... Nd7 $17 27. Nf3 Ne5 ({Black should try} 27... Nb6 $17 28. Nd4 Bd7) 28. Nxe5 $11 Rxe5 29. h4 Bd7 30. e4 (30. a4 $11) 30... Bg4 $36 {[%mdl 2048] White is under strong pressure.} 31. Re3 {[#]} Bf5 $1 {[%mdl 512]} 32. a4 (32. exf5 Rxe3) 32... dxe4 33. axb5 axb5 34. c4 bxc4 35. Bxc4 Kg7 36. Ra1 f6 37. gxf6+ Kxf6 38. Ra6+ {[#]} Kg7 (38... Be6 $1 $17 39. Rg3 e3) 39. Kc3 $11 Rc8 40. Kd4 Re7 {...Rd7+ is the strong threat.} 41. Rd6 g5 42. hxg5 h4 43. Rf6 Bg6 {White must now prevent ...Rd7+.} 44. Rd6 Rh8 {aiming for ...h3.} 45. Bf1 Rf8 46. Bh3 Rb8 47. Kc3 Rc7+ 48. Kb3 Rcb7 49. Rd4 {[#]} Bf7+ (49... Rb5 $1 $17 50. Rd7+ Kf8) 50. Kc3 $1 Rc7+ 51. Kd2 Bg6 {The position is equal.} 52. Bg2 Ra8 53. Bxe4 Ra2+ 54. Kd3 Re7 {Threatens to win with ...Ra3+.} 55. Rd6 Bf5 56. Bxf5 Ra3+ 57. Kd4 Raxe3 {[%mdl 4096] Endgame KRR-KRB} 58. Rg6+ Kf8 59. Rh6 Rf3 60. Rh8+ Kg7 61. Rh7+ Kf8 62. Rh8+ Kg7 63. Rh7+ Kf8 64. Rh8+ Kf7 (64... Kg7 $5 65. Rh7+ $8 $11) 65. Rh7+ {Accuracy: White = 53%, Black = 50%.} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "5.10"]
[White "Ambartsumova, Karina"]
[Black "Zuriel, Marisa"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2341"]
[BlackElo "2178"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,89,47,57,45,65,46,54,40,61,52,61,61,107,89,135,97,120,77,108,20,20,27,204,206,210,156,156,151,144,144,158,145,149,143,172,162,147,155,208,213,198,215,192,124,255,255,262,227,227,248,253,222,257,154,154,154,151,-266,335,354,347,339,329,310,408,403,443,440,503,470,797,659,29982,12466]} 1. Nf3 Nf6 2. g3 g6 3. d4 Bg7 4. Bg2 O-O 5. O-O d6 6. b3 Nbd7 7. Bb2 e5 8. dxe5 Ng4 9. Qd2 Ngxe5 10. c4 {A49: 1 d4 Nf6 2 Nf3 g6 3 g3: Anti-King's Indian systems} Re8 11. Nc3 a5 (11... Nxf3+ 12. Bxf3 Nc5 13. Rfe1 a5 14. Rad1 Be6 15. Nb5 Bxb2 16. Qxb2 Bd7 17. Nc3 Qf6 18. Qd2 Bc6 19. Bxc6 bxc6 20. e4 Rab8 21. Rb1 Rb4 22. Re3 Reb8 23. Rbe1 a4 24. e5 Qd8 25. Nb5 Na6 26. exd6 cxb5 27. d7 {1-0 (27) Mamedyarov,S (2799)-Haddouche,M (2505) Riadh 2017}) 12. Rad1 {[%cal Ba1d1,Bd1d2,Bd2b2,Bb2a2][%mdl 32] White is slightly better.} Nc6 $146 ({Predecessor:} 12... Nxf3+ 13. Bxf3 Nc5 14. Nd5 Be6 15. Bxg7 Kxg7 16. Qd4+ f6 17. Nc3 Rb8 18. Bg2 Bd7 19. Qd2 Bc6 20. Qb2 Qe7 21. Rfe1 Qe5 22. Rd2 Bxg2 23. Kxg2 Ne4 {½-½ (23) Kurajica,B (2555)-Neverov,V (2587) Bled 2002}) 13. Rfe1 Nc5 14. Nd5 Ne5 15. Nxe5 dxe5 16. Qe3 Nd7 17. Rd2 a4 18. Red1 (18. c5 $16) 18... axb3 $11 19. axb3 f5 $2 (19... c6 $11 {and Black stays safe.}) 20. c5 $18 Ra2 21. Nb4 Rxb2 22. Rxb2 {aiming for c6.} c6 23. Nc2 e4 24. Ra2 Qe7 25. b4 Nf6 {and if ...Nd5 works, Black does fine.} 26. Ra8 Nd5 27. Qb3 Be6 (27... Kh8 $16 28. Nd4 Nc7) 28. Rxe8+ Qxe8 29. Nd4 Bf7 30. Qa3 (30. e3 $18) 30... e3 (30... f4 $16 31. e3 fxe3) 31. f4 Nc7 {[%cal Bd5c7,Bc7b5,Bb5c3][%mdl 32] intending ...Bxd4.} 32. Nc2 Nb5 33. Qd3 (33. Qxe3 $6 Bd4 $16) 33... Nc3 34. Rf1 ({Not} 34. Nxe3 Nxd1 35. Nxd1 Qe6 $14) 34... h6 35. Nxe3 (35. Bf3 $18) 35... Bd4 $16 {[#]} 36. Rf3 $1 Bd5 37. Kf2 $2 {[#]} (37. Kh1 $16 {keeps the pressure on.} Bxf3 38. Qxd4) 37... Bxf3 $4 {[%mdl 8192]} ({Inferior is} 37... Nb5 38. g4 $11) (37... Qe4 $1 $19 {avoids the disaster. White must now prevent ...Qxd3.} 38. Ke1 Qxd3 39. exd3 Bxf3) 38. Qxd4 $18 Bxg2 39. Qxc3 ({Less strong is} 39. Kxg2 Qe4+ 40. Qxe4 fxe4 $16) 39... Be4 40. Qf6 Kh7 41. Nc4 Qg8 42. Nd6 Bd5 43. Qe7+ Kh8 (43... Qg7 $142 44. Qxb7 Qxb7 45. Nxb7 Kg7) 44. Ne8 {Strongly threatening Qe5+.} Bc4 45. Qe5+ {Accuracy: White = 66%, Black = 39%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "5.11"]
[White "De Carvalho, Jose Jorge"]
[Black "Rodi, Luis Ernesto"]
[Result "0-1"]
[ECO "C45"]
[WhiteElo "2149"]
[BlackElo "2341"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,114,6,-29,0,4,0,0,0,-10,36,30,41,41,62,57,64,63,108,100,101,70,117,115,150,147,150,112,123,132,177,179,199,160,135,106,169,193,183,0,0,0,0,0,1,0,0,-13,16,28,20,26,70,-18,-22,-79,-72,-71,-27,-19,-24,-16,-24,-95,-102,-137,-116,-385,-406,-400,-393,-374,-155,-548,-540,-541,-533,-506,-512,-676,-675,-610,-548,-500,-474,-467,-457,-437,-448,-520,-494,-528,-518,-839,-838,-29960,-900,-29992,-29993,-29993,-29994,-29994,-990]} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8. h4 (8. c4 $5 {[%cal Rc4d5]} Ba6 9. Nd2 $11) 8... Bb7 {C45: Scotch Game} (8... Qe6 9. Nd2 d6 10. exd6 Bxd6 11. Nc4 Bc5 12. a3 O-O 13. Qxe6 Bxe6 14. Bd3 Rfe8 15. O-O a5 16. Ne5 {½-½ (38) Caruana,F (2828)-Robson,R (2667) Saint Louis 2019}) 9. c4 Nb6 10. Nc3 Qe6 {The position is equal.} 11. Bd2 Ba6 $146 {[%cal Ra6c4]} ({Predecessor:} 11... Bb4 12. h5 O-O 13. O-O-O Rae8 14. h6 g6 15. Re1 Ba6 16. b3 Bc8 17. Rh4 {1-0 (55) Fass,R (2367)-Hameister,R (2430) ICCF email 2012}) 12. b3 Ba3 13. g3 O-O 14. Bh3 f5 15. O-O Bc5 16. Rae1 Rae8 17. Kh2 Bd4 {[%cal Rb6c4]} 18. f4 Nxc4 19. bxc4 Bxc4 20. Qf3 Bxf1 21. Bxf1 Rb8 22. Qd3 {[%mdl 1024] White has strong compensation.} c5 23. Bg2 {Hoping for Bd5.} c6 24. Re2 Rb2 (24... Kh8 $16) 25. Bc1 $18 Rb4 {With the idea ...Qc4.} 26. Rd2 $2 ({White should play} 26. Rc2 $18) 26... Qc4 $11 27. Ne2 {Black should prevent Qxc4+.} Qxd3 28. Rxd3 Rfb8 29. Bh3 g6 30. g4 fxg4 31. Bxg4 Bxe5 32. Bxd7 Bb2 {And now ...Bxc1 would win.} 33. Be6+ (33. Be3 $1 $14) 33... Kg7 {Black wants to play ...Bxc1.} 34. Bd2 (34. Rd7+ $11 Kh8 35. Kg3) 34... Re4 $17 35. Rd7+ Kf6 36. Bg4 Rbe8 $36 {[%mdl 2048] Black has the initiative.} 37. Ng3 Rd4 38. Ba5 (38. Kg2 $11 {remains equal.}) 38... Rxf4 39. Kh3 h5 {[%mdl 64] Overworked Piece} 40. Bxh5 $2 {[%mdl 8192]} (40. Be2 $17) 40... gxh5 $19 41. Nxh5+ Ke6 42. Rd2 Rf5 (42... Rf3+ $19 {has better winning chances.} 43. Kg4 Ra3 {[%mdl 64] Double Attack} 44. Nf4+ Ke7) 43. Re2+ $2 (43. Ng3 $17 {was the crucial defense.} Bd4 44. Nxf5 Kxf5 45. Rc2) 43... Kd7 {Played: Ke6-f7} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "5.12"]
[White "Guimaraes, Diogo Duarte"]
[Black "Abrantes, Tiago Garrido"]
[Result "1/2-1/2"]
[ECO "C84"]
[WhiteElo "2322"]
[BlackElo "2159"]
[Annotator "TA"]
[PlyCount "136"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,136,0,0,35,39,45,23,29,19,9,0,0,0,0,0,23,0,88,80,64,75,64,83,83,79,74,3,10,7,67,72,45,40,125,114,222,90,81,91,88,101,240,203,258,247,258,261,241,250,246,162,168,19,25,16,68,68,69,72,73,62,113,115,101,65,234,77,274,271,274,287,273,247,448,325,318,191,261,249,220,99,93,24,14,0,0,0,0,-8,-8,-14,-14,-14,-18,-18,-18,-47,-8,-8,-8,-8,0,-8,-8,-8,0,0,0,0,0,0,8,0,8,8,8,8,8,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. d3 b5 7. Bb3 d6 8. a3 O-O 9. Nc3 Bg4 10. Be3 Nb8 {C84: Closed Ruy Lopez: Unusual White 6th moves} (10... Nd4 $5) (10... Nd4 11. Bxd4 exd4 12. Nd5 Nd7 13. h3 Bxf3 14. Qxf3 c6 15. Nf4 Nc5 16. Ba2 a5 17. Qg4 Kh8 18. Ne2 {1-0 (48) Caruana,F (2828)-Postny,E (2623) chess.com INT 2019}) 11. h3 Be6 $146 ({Predecessor:} 11... Bh5 12. a4 b4 13. Nd5 Nxd5 14. Bxd5 c6 15. Bb3 Nd7 16. Qd2 Kh8 17. Nh2 a5 18. f4 exf4 19. Bxf4 {½-½ (92) Ronge,T (2102)-Becker,D (2262) Nickenich 2018}) 12. Bxe6 fxe6 {White has an edge.} 13. d4 exd4 $1 14. Nxd4 Qd7 15. f4 c5 16. Nb3 $36 {[%mdl 2048] White has the initiative.} Qc7 17. f5 b4 (17... Nc6 $11) 18. axb4 $16 cxb4 19. Na4 Nc6 20. Nb6 Rab8 21. Rxa6 Qb7 22. Qa1 (22. Ra1 $16) 22... Nxe4 $11 23. fxe6 Rxf1+ (23... Ng3 $11 24. Rf7 Ne5) 24. Qxf1 $14 Rf8 25. Qb5 Ng3 ({Black should play} 25... Nc5 $14 26. Nxc5 dxc5) 26. Ra1 $16 Rf5 (26... h5 $16 27. Qd3 Ne5) 27. Qa6 (27. Qc4 $1 $18 Ne5 28. Qc8+ (28. Qxb4 Nf3+ 29. gxf3 Qxf3 30. Bf4 Rxf4 31. Qxf4 Ne2+ {[%mdl 64] Double Attack, Discovered Attack} 32. Kh2 Nxf4 33. Ra8+ Bf8 34. Rxf8+ {[%mdl 64] Remove Defender} Kxf8 35. e7+ Ke8 36. h4 Qg2#) 28... Qxc8 29. Nxc8) 27... Qxa6 28. Rxa6 h5 29. Nd2 $1 Ne5 (29... Nd4 $16 {might work better.}) 30. Nd5 Bh4 31. Ra8+ (31. Nxb4 Nc4 $16) 31... Rf8 32. Rxf8+ $1 Kxf8 33. Bf2 (33. Nxb4 $6 Ke7 $16) 33... Nf5 34. Bb6 ({Much less strong is} 34. Nxb4 $6 Bg5 $16) 34... Ne7 35. Nf4 ({White should try} 35. Nxb4 $18 Be1 36. Be3) 35... Bg5 $11 36. Be3 Nf5 (36... Bh6 $11) 37. Ng6+ $1 $14 Nxg6 38. Bxg5 {[%mdl 4096] Endgame KBN-KNN} Nd4 39. Ne4 d5 (39... Nxc2 $14 40. Nxd6 Nd4) 40. Nc5 $16 Nxc2 41. Kf2 Ke8 $2 (41... Nd4 $14) 42. Ke2 $2 (42. Na6 $1 $18) 42... Nf8 $2 (42... Nd4+ $16 43. Kd3 Nf5) 43. Kd3 $18 Ne1+ 44. Kd4 Nxg2 45. Kxd5 Ne1 $2 (45... Nh7 {keeps fighting.}) 46. Bd2 Ng2 47. Ke4 ({Don't do} 47. Bxb4 $6 Nf4+ 48. Kd6 Nxh3 $18) 47... b3 (47... Ke7 $142) 48. Ke5 Ng6+ {[#]} 49. Kd6 (49. Kf5 $1 $18 {[%cal Rf5g6] is the precise move to win.} N2h4+ 50. Kg5 Nf3+ 51. Kxg6 Nxd2 52. Kxh5 (52. Kxg7 Ke7 $16)) 49... N2f4 $16 {[#]} 50. Nxb3 ({Better is} 50. Bxf4 $1 $16 Nxf4 51. Nxb3 Nxh3 52. Nd4) 50... Nxh3 $11 51. Nd4 {Strongly threatening Nf5.} Nf2 52. Be1 Ne4+ 53. Kc6 Ne7+ 54. Kb7 g5 55. b4 $1 h4 56. Nf3 $1 h3 {Hoping for ...g4.} 57. Nh2 $1 Nf5 {aiming for ...Nd4.} 58. Kc6 {Black should prevent Kd5.The position is equal.} Ke7 59. Kd5 $1 {[%cal Rd5e4]} Ned6 60. Ke5 Ng7 61. b5 {Bb4 is the strong threat.} Nxb5 62. Bb4+ Ke8 63. Kf6 Nh5+ 64. Kxg5 Ng3 65. Ng4 {White threatens Nf6+ and mate.} Nc7 66. Nf6+ Kd8 67. e7+ Kc8 {And now ...h2 would win.} 68. Ng4 Kd7 {Accuracy: White = 43%, Black = 38%.} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "5.13"]
[White "Federzoni, Enzo"]
[Black "Aranha Filho, Alvaro Z."]
[Result "0-1"]
[ECO "B05"]
[WhiteElo "2138"]
[BlackElo "2304"]
[Annotator "TA"]
[PlyCount "130"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,130,27,29,61,34,36,36,47,27,32,29,65,67,85,63,87,33,24,29,32,42,36,27,22,0,7,0,0,0,0,0,14,8,34,7,20,10,10,18,12,11,6,0,0,0,18,0,0,0,0,-15,0,0,0,0,0,-88,0,0,0,-83,-80,-302,-272,-295,-281,-377,-376,-371,-372,-384,-357,-408,-390,-422,-257,-499,-500,-521,-523,-526,-519,-502,-446,-451,-450,-434,-441,-448,-440,-580,-544,-611,-603,-575,-566,-1557,-910,-4722,-4614,-4614,-4606,-6019,-5972,-5409,-5057,-5114,-1689,-1547,-1350,-962,-962]} 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. exd6 exd6 6. Be2 Be7 7. O-O O-O 8. c4 Nb6 9. Nc3 Nc6 10. b3 Bf6 11. Be3 a5 {B05: Alekhine's Defence: 4 Nf3 Bg4} (11... d5 12. c5 Nc8 13. h3 Bxf3 14. Bxf3 N8e7 15. g4 g6 16. Bg2 Bg7 17. f4 f5 18. g5 Qd7 19. Qd2 Rae8 20. Bf2 Nd8 21. b4 {0-1 (34) Felgaer,R (2561)-Milos,G (2589) Sao Paulo 2009}) 12. Ne4 d5 13. Nxf6+ Qxf6 {White is slightly better.} 14. c5 Nc8 15. h3 Bh5 $146 ({Predecessor:} 15... Bxf3 16. Bxf3 N8e7 17. Qd2 h6 {½-½ (47) Pingin,A (2003)-Najdin,D (2289) Taganrog 2019}) 16. Qd2 Qd8 17. a3 N8e7 {[#]} 18. b4 ({White should play} 18. g4 $1 $16 {[%cal Rg4h5]} Bg6 19. b4) 18... Nf5 $14 19. b5 Nxe3 20. fxe3 Ne7 21. Bd3 Bg6 22. Ne5 Bxd3 $1 23. Qxd3 f6 24. Nf3 Qd7 25. a4 Rfe8 26. Rae1 Kh8 27. e4 dxe4 28. Rxe4 Nd5 29. Rfe1 Rxe4 30. Qxe4 Rd8 31. Qe2 Kg8 32. Nd2 Qf7 33. Nb3 b6 34. Qf3 Nb4 35. Re2 h6 36. Qe3 Kf8 37. Qg3 Kg8 (37... Nd5 {is interesting.} 38. Qf3 g5 39. g3 f5 40. Re5 f4) 38. Qf3 (38. Qe3 $11 {keeps the balance.}) 38... Nd5 39. Nd2 Nb4 40. Nb3 {[#]} Qc4 $1 41. Re7 $2 (41. cxb6 $17 cxb6 42. Re7) 41... Nd5 $19 {[%mdl 64] Discovered Attack} 42. Re4 Qxa4 43. cxb6 cxb6 44. Qd3 Qb4 45. Nd2 Nc3 46. Re3 Nxb5 47. d5 Qd4 48. Nc4 $2 (48. Qxd4 {was the only chance.} Nxd4 49. Nc4) 48... Rxd5 {Black is clearly winning.} 49. Qxd4 Rxd4 50. Nxb6 {[%mdl 4096] Endgame KRN-KRN} a4 {[%cal Ba5a4,Ba4a3][%mdl 32]} 51. Re8+ Kh7 52. Ra8 a3 53. Ra5 Rb4 54. Kh2 Nd4 55. Nd5 Rb5 56. Nxf6+ gxf6 57. Rxa3 {KRN-KR} Rb2 58. h4 Kg6 59. Rd3 Nf5 60. Kh3 h5 61. Ra3 Re2 62. Ra4 Rd2 63. Ra3 Rd4 {[%csl Gf5][%cal Rd4h4]} 64. g3 Re4 65. Kh2 Re2+ {Accuracy: White = 37%, Black = 70%.} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.10"]
[Round "5.14"]
[White "Gauche, Charles"]
[Black "Martinez, Ayelen"]
[Result "1-0"]
[ECO "B52"]
[WhiteElo "2248"]
[BlackElo "2139"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,101,26,27,46,34,32,18,62,53,70,48,76,52,73,73,71,64,147,156,154,159,182,190,242,243,293,286,287,284,279,238,452,369,350,215,280,255,264,270,266,204,220,187,180,183,229,233,416,449,736,763,754,751,697,555,554,538,652,646,651,646,827,803,806,797,802,802,802,668,1008,889,866,716,1404,1185,1664,1775,1557,1477,2353,2140,12839,11856,12840,12838]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 Nc6 6. Nc3 g6 7. d4 cxd4 8. Nxd4 Bg7 9. Be3 Nf6 10. f3 Rc8 {B52: Sicilian: Moscow Variation with 3...Bd7} (10... O-O 11. O-O a6 12. Na4 Rab8 13. Nxc6 Qxc6 14. Nb6 Nd7 15. Nxd7 Qxd7 16. Rf2 b5 17. c5 Qa7 18. Rc1 dxc5 19. Bxc5 Qc7 {1-0 (50) Caruana,F (2807)-Kasparov,G (2812) Saint Louis 2017}) 11. b3 O-O 12. Qd2 Ne8 {The position is equal.} 13. O-O Nc7 14. Rad1 Ne6 $146 ({Predecessor:} 14... Rfe8 15. Nde2 Red8 16. Nd5 Rb8 17. Rc1 b6 18. Bh6 Bh8 19. h3 Ne8 20. Bg5 {1-0 (61) Karas,B (2265)-Grinblat,D (2396) Kharkov 2002}) 15. Nxe6 Qxe6 16. Nd5 {[%cal Bc3d5,Bd5e3,Be3g4][%mdl 32]} Qe5 17. Rf2 f5 (17... Rfe8 $14) 18. exf5 $1 $16 Qxf5 {[#]} 19. Bxa7 $1 {[%mdl 512]} e6 {[#]} (19... Nxa7 20. Nxe7+) 20. Ne3 $1 {[%csl LRd6,LRf5][%cal Re3f5][%mdl 64] Discovered Attack} Qh5 {[#]} (20... Qf7 $142) 21. Bb6 $1 $18 Be5 22. Ng4 Bf4 23. Be3 Be5 24. b4 Ne7 $2 (24... Bg7 25. Qxd6 Rfe8) 25. c5 Nd5 26. Nxe5 dxe5 27. Re1 Qh4 28. a3 Ra8 29. Bg5 Qd4 30. Qc1 Qd3 31. Qb2 Qd4 32. Bc1 Nc3 $2 (32... Qxb2 {was worth a try.} 33. Bxb2 Kf7) 33. Be3 Qd3 (33... Qc4 $142 34. Rc2 Na4) 34. Rd2 Na4 35. Qxe5 Qf5 36. Bd4 {[%csl Gd4][%cal Re5g7]} Qxe5 37. Bxe5 Rac8 38. Rd7 {White threatens Rg7+ and mate.} Rf7 39. Red1 Rcf8 40. Rxf7 Rxf7 {[%mdl 4096] Endgame KRB-KRN} 41. Rd8+ Rf8 42. Rxf8+ Kxf8 {KB-KN} 43. Kf2 Ke8 44. Ke3 Kd7 45. Kd3 b6 46. cxb6 {b7 would kill now.} Nxb6 47. Bd4 Nd5 48. Kc4 Kd6 49. b5 Kc7 50. a4 {[%cal Ba3a4,Ba4a5][%mdl 32]} Kb7 51. a5 {Accuracy: White = 78%, Black = 31%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.10"]
[Round "5.15"]
[White "Pirola, Claudionor Alcides L"]
[Black "Fernandez, Maria Florencia"]
[Result "0-1"]
[ECO "B24"]
[WhiteElo "2106"]
[BlackElo "2241"]
[Annotator "RC"]
[PlyCount "74"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:02:48]} 2. Nc3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:06]} 3. Nf3 {[%emt 0:00:04]} e5 {[%emt 0:00:09]} 4. Bc4 {[%emt 0:00:55]} d6 {[%emt 0:00:53]} 5. d3 {[%emt 0:03:00]} Be7 {[%emt 0:00:04]} 6. a3 {[%emt 0:02:48]} Nf6 {[%emt 0:00:29]} 7. h3 {[%emt 0:00:17]} O-O {[%emt 0:00:51]} 8. O-O {[%emt 0:01:10]} Nd7 {[%emt 0:01:48]} 9. Nd5 {[%emt 0:02:51]} Nb6 {[%emt 0:07:14]} 10. Ba2 {[%emt 0:11:47]} Be6 11. c3 Bxd5 {[%emt 0:20:00]} 12. exd5 {[%emt 0:03:01]} Nb8 {[%emt 0:00:03]} 13. b4 {[%emt 0:12:46]} N8d7 {[%emt 0:02:17]} 14. bxc5 {[%emt 0:04:26]} Nxc5 {[%emt 0:01:23]} 15. Be3 {[%emt 0:07:52]} Rc8 {[%emt 0:08:49]} 16. Qd2 {[%emt 0:01:54]} Nba4 {[%emt 0:03:26]} 17. c4 {[%emt 0:11:01]} Bf6 {[%emt 0:17:37]} 18. d4 {[%emt 0:07:25]} exd4 {[%emt 0:01:53]} 19. Bxd4 {[%emt 0:00:29]} Ne4 {[%emt 0:03:31]} 20. Qf4 {[%emt 0:03:28]} Nac3 {[%emt 0:05:46]} 21. Rfe1 {[%emt 0:02:34]} Nxa2 {[%emt 0:04:47]} 22. Qxe4 {[%emt 0:02:22]} Nc3 {[%emt 0:01:33]} 23. Qe3 {[%emt 0:03:36]} Na4 {[%emt 0:00:56]} 24. Bxf6 {[%emt 0:00:22]} Qxf6 {[%emt 0:00:02]} 25. Qxa7 {[%emt 0:00:00]} Nc5 {[%emt 0:08:14]} 26. Qb6 {[%emt 0:00:17]} Nd3 {[%emt 0:00:10]} 27. Red1 {[%emt 0:01:58]} Nf4 {[%emt 0:02:01]} 28. Qb3 {[%emt 0:03:37]} Qg6 {[%emt 0:01:45]} 29. Ne1 {[%emt 0:02:59]} Rfe8 {[%emt 0:00:33]} 30. Qf3 {[%emt 0:00:54]} Rxc4 {[%emt 0:00:24]} 31. Nd3 {[%emt 0:01:05]} Ne2+ {[%emt 0:01:40]} 32. Kf1 {[%emt 0:01:21]} Rc3 {[%emt 0:02:58]} 33. Rd2 {[%emt 0:02:57]} Nd4 {[%emt 0:00:21]} 34. Qd1 {[%emt 0:04:48]} Nb3 {[%emt 0:00:22]} 35. Re2 {[%emt 0:00:15]} Rxe2 {[%emt 0:00:14]} 36. Nf4 {[%emt 0:00:16]} Rxf2+ {[%emt 0:01:49]} 37. Kxf2 {[%emt 0:02:15]} Qg3+ {[%emt 0:00:05]} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.10"]
[Round "5.16"]
[White "Labussiere, Victor"]
[Black "Silva, Kaua Marques"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2295"]
[BlackElo "2082"]
[Annotator "TA"]
[PlyCount "46"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,46,68,59,64,64,60,55,52,63,40,50,31,60,50,52,42,34,0,0,0,0,0,0,0,0,0,0,-75,0,0,542]} 1. Nf3 c5 2. e4 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 Nf6 6. e5 Ng4 7. Bxc6 bxc6 8. h3 Nh6 9. Nc3 O-O 10. d3 {B31: Sicilian: 2...Nc6 3 Bb5 g6} Nf5 11. Ne4 Qb6 12. Rb1 {White is slightly better.} (12. c4 Nd4 13. Nxd4 cxd4 14. c5 Qb8 15. f4 Ba6 16. Qc2 h6 17. b3 Qb5 {½-½ (44) Quparadze,G (2493)-Pantsulaia,L (2611) Tbilisi 2019}) 12... d5 13. Nc3 $146 (13. exd6 $5 exd6 14. Bg5 $11) ({Predecessor:} 13. exd6 exd6 14. g4 {½-½ (33) Day,A-Pomeroy,A Dunedin 1975}) 13... Nd4 14. b3 f6 15. Nxd4 cxd4 16. Na4 Qc7 17. exf6 Bxf6 18. Bh6 Rf7 19. Qd2 c5 20. Bf4 e5 21. Bg3 Bd7 22. f4 {[#]} (22. Nb2 $11) 22... Bxa4 ({Black should try} 22... e4 $1 $17 {[%mdl 512] Strongly threatening ...Re8.} 23. dxe4 dxe4 24. Rxe4 Bf5) 23. fxe5 Bxe5 $2 {[%mdl 8192] Accuracy: White = 82%, Black = 55%.} (23... Bc6 $11 {and Black is okay.} 24. Kh2 {[#]} Bxe5 $1 {[%mdl 512]} 25. Rxe5 Qd8) 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "6.1"]
[White "Di Berardino, Diego Rafael"]
[Black "Martinez Alcantara, Jose Eduardo"]
[Result "0-1"]
[ECO "A35"]
[WhiteElo "2489"]
[BlackElo "2592"]
[Annotator "ChessBase"]
[PlyCount "74"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. Nf3 {[%emt 0:00:19]} c5 {[%emt 0:02:18]} 2. c4 {[%emt 0:00:31]} Nf6 {[%emt 0:00:05]} 3. Nc3 {[%emt 0:00:18]} Nc6 {[%emt 0:01:09]} 4. e3 {[%emt 0:01:30]} d5 {[%emt 0:03:13]} 5. cxd5 {[%emt 0:00:04]} Nxd5 {[%emt 0:00:04]} 6. d4 {[%emt 0:01:39]} e6 {[%emt 0:05:31]} 7. Bc4 {[%emt 0:04:07]} cxd4 {[%emt 0:02:53]} 8. exd4 {[%emt 0:00:17]} Be7 {[%emt 0:00:02]} 9. O-O {[%emt 0:00:19]} O-O {[%emt 0:00:05]} 10. Re1 {[%emt 0:00:33]} a6 {[%emt 0:00:28]} 11. Bb3 {[%emt 0:02:07]} b5 {[%emt 0:12:05]} 12. Ne4 {[%emt 0:13:06]} Bb7 {[%emt 0:03:39]} 13. Bg5 {[%emt 0:03:53]} Rc8 {[%emt 0:07:30]} 14. Rc1 {[%emt 0:11:52]} Rc7 {[%emt 0:01:53]} 15. Bxd5 {[%emt 0:18:47]} Qxd5 {[%emt 0:06:31]} 16. Bxe7 {[%emt 0:00:06]} Rxe7 {[%emt 0:00:05]} 17. Rc5 {[%emt 0:02:28]} Qd8 {[%emt 0:03:42]} 18. Neg5 {[%emt 0:01:34]} h6 {[%emt 0:06:35]} 19. d5 {[%emt 0:12:46]} exd5 {[%emt 0:01:59]} 20. Rxd5 {[%emt 0:00:24]} Rxe1+ {[%emt 0:00:08]} 21. Nxe1 {[%emt 0:00:03]} Qf6 {[%emt 0:05:48]} 22. Ne4 {[%emt 0:01:11]} Qxb2 {[%emt 0:00:55]} 23. Nd3 {[%emt 0:01:14]} Qxa2 {[%emt 0:02:15]} 24. Ndc5 {[%emt 0:00:27]} Bc8 {[%emt 0:00:38]} 25. h3 {[%emt 0:00:05]} Qa5 {[%emt 0:04:03]} 26. Rd6 {[%emt 0:07:38]} Ne5 {[%emt 0:03:51]} 27. Qd4 {[%emt 0:04:52]} Re8 {[%emt 0:04:52]} 28. f4 {[%emt 0:08:33]} Ng6 {[%emt 0:00:43]} 29. Ng3 {[%emt 0:00:14]} Nh4 {[%emt 0:02:30]} 30. Qd5 {[%emt 0:02:43]} Qc3 {[%emt 0:05:10]} 31. Kh2 {[%emt 0:00:04]} Qc4 {[%emt 0:08:21]} 32. Qc6 {[%emt 0:01:10]} Rf8 {[%emt 0:01:06]} 33. Nge4 {[%emt 0:00:46]} Ng6 {[%emt 0:01:13]} 34. Qc7 {[%emt 0:00:39]} Bf5 {[%emt 0:01:23]} 35. Ng3 {[%emt 0:00:03]} Qxf4 {[%emt 0:00:40]} 36. Nxa6 {[%emt 0:00:07]} Bxh3 {[%emt 0:02:15]} 37. Rd3 {[%emt 0:01:13]} Bc8 {[%emt 0:00:39]} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "6.2"]
[White "Cruz, Cristhian"]
[Black "Vazquez, Guillermo"]
[Result "1-0"]
[ECO "E04"]
[WhiteElo "2562"]
[BlackElo "2506"]
[Annotator "ChessBase"]
[PlyCount "133"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. c4 {[%emt 0:03:05]} e6 {[%emt 0:00:06]} 2. Nf3 {[%emt 0:01:21]} d5 {[%emt 0:00:52]} 3. d4 {[%emt 0:00:33]} Nf6 {[%emt 0:00:45]} 4. g3 {[%emt 0:00:41]} dxc4 {[%emt 0:01:42]} 5. Bg2 {[%emt 0:00:29]} Nc6 {[%emt 0:00:20]} 6. Qa4 {[%emt 0:00:14]} Bb4+ {[%emt 0:00:28]} 7. Bd2 {[%emt 0:00:09]} Nd5 {[%emt 0:00:46]} 8. Bxb4 {[%emt 0:03:48]} Ndxb4 {[%emt 0:00:05]} 9. Nc3 {[%emt 0:00:58]} Bd7 {[%emt 0:02:15]} 10. O-O {[%emt 0:01:05]} a5 {[%emt 0:00:48]} 11. Qd1 {[%emt 0:01:45]} O-O {[%emt 0:02:20]} 12. Nd2 {[%emt 0:00:22]} Nxd4 {[%emt 0:08:02]} 13. Bxb7 {[%emt 0:00:35]} Rb8 {[%emt 0:00:43]} 14. Bg2 {[%emt 0:00:10]} Nd5 {[%emt 0:16:16]} 15. Nxc4 {[%emt 0:13:46]} Nxc3 {[%emt 0:00:25]} 16. bxc3 {[%emt 0:00:03]} Bb5 {[%emt 0:00:10]} 17. cxd4 {[%emt 0:00:11]} Bxc4 {[%emt 0:00:06]} 18. Qc2 {[%emt 0:01:22]} Rb4 {[%emt 0:08:01]} 19. a3 {[%emt 0:05:33]} Bb3 {[%emt 0:00:58]} 20. Qd3 {[%emt 0:00:58]} Rb6 {[%emt 0:08:45]} 21. Rac1 {[%emt 0:03:07]} Bd5 {[%emt 0:07:53]} 22. Bxd5 {[%emt 0:06:31]} Qxd5 {[%emt 0:02:22]} 23. Rxc7 {[%emt 0:01:45]} Rb3 {[%emt 0:01:11]} 24. Rc3 {[%emt 0:00:30]} a4 {[%emt 0:01:17]} 25. Rfc1 {[%emt 0:07:14]} g6 {[%emt 0:05:27]} 26. Rxb3 {[%emt 0:04:39]} axb3 {[%emt 0:00:53]} 27. Rc5 {[%emt 0:00:45]} Qd6 {[%emt 0:01:08]} 28. Qxb3 {[%emt 0:01:28]} Qxd4 {[%emt 0:00:04]} 29. Qc4 {[%emt 0:02:10]} Qa1+ {[%emt 0:02:50]} 30. Qc1 {[%emt 0:00:11]} Qa2 {[%emt 0:00:33]} 31. Rc2 {[%emt 0:01:31]} Qb3 {[%emt 0:03:14]} 32. Rc8 {[%emt 0:03:10]} Rxc8 {[%emt 0:00:38]} 33. Qxc8+ {[%emt 0:00:06]} Kg7 {[%emt 0:00:03]} 34. Qa6 {[%emt 0:05:47]} Qd1+ {[%emt 0:04:58]} 35. Kg2 {[%emt 0:00:27]} Qd5+ {[%emt 0:00:07]} 36. f3 {[%emt 0:00:51]} e5 {[%emt 0:00:13]} 37. Qd3 {[%emt 0:02:49]} Qa2 {[%emt 0:01:18]} 38. Kf2 {[%emt 0:06:50]} Qa1 {[%emt 0:01:28]} 39. Qd6 {[%emt 0:01:15]} g5 {[%emt 0:09:08]} 40. Kg2 {[%emt 0:07:03]} h6 {[%emt 0:05:42]} 41. Qa6 {[%emt 0:38:06]} Qb1 {[%emt 0:34:52]} 42. Qc4 {[%emt 0:00:43]} h5 {[%emt 0:00:00]} 43. a4 {[%emt 0:00:00]} Qa1 {[%emt 0:00:00]} 44. h4 {[%emt 0:00:00]} gxh4 {[%emt 0:00:00]} 45. Qxh4 {[%emt 0:00:00]} f6 {[%emt 0:00:00]} 46. Qc4 {[%emt 0:00:00]} Qe1 {[%emt 0:00:00]} 47. Qb5 {[%emt 0:00:00]} h4 {[%emt 0:00:00]} 48. gxh4 {[%emt 0:00:00]} Qxh4 {[%emt 0:00:00]} 49. a5 {[%emt 0:00:00]} Qg5+ {[%emt 0:00:00]} 50. Kf1 {[%emt 0:00:00]} Qh4 {[%emt 0:00:00]} 51. Qd7+ {[%emt 0:00:00]} Kh6 {[%emt 0:00:00]} 52. Qg4 {[%emt 0:00:00]} Qh1+ {[%emt 0:00:00]} 53. Kf2 {[%emt 0:00:00]} Qa1 {[%emt 0:00:00]} 54. Qb4 {[%emt 0:00:23]} Kg6 {[%emt 0:00:00]} 55. Kg2 {[%emt 0:01:12]} Kg5 {[%emt 0:01:37]} 56. Qb6 {[%emt 0:03:14]} e4 {[%emt 0:01:48]} 57. Qe3+ {[%emt 0:00:42]} Kh5 {[%emt 0:00:08]} 58. Qc5+ {[%emt 0:00:06]} Kg6 {[%emt 0:00:52]} 59. fxe4 {[%emt 0:00:17]} Qa4 {[%emt 0:02:31]} 60. Qd5 {[%emt 0:02:15]} Qa1 {[%emt 0:00:30]} 61. Qb5 {[%emt 0:00:57]} Kh6 {[%emt 0:00:18]} 62. a6 {[%emt 0:00:24]} Qa2 {[%emt 0:00:13]} 63. Kf2 {[%emt 0:01:04]} Qd2 {[%emt 0:00:11]} 64. Qd3 {[%emt 0:01:20]} Qa5 {[%emt 0:00:45]} 65. Qe3+ {[%emt 0:00:18]} Kg6 {[%emt 0:00:14]} 66. a7 {[%emt 0:00:22]} Qa4 {[%emt 0:01:31]} 67. e5 {[%emt 0:02:37]} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "6.3"]
[White "Supi, Luis Paulo"]
[Black "Gauche, Charles"]
[Result "1-0"]
[ECO "A20"]
[WhiteElo "2578"]
[BlackElo "2248"]
[Annotator "ChessBase"]
[PlyCount "75"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. c4 {[%emt 0:00:00]} e5 {[%emt 0:11:31]} 2. g3 {[%emt 0:00:00]} Nf6 {[%emt 0:00:15]} 3. Bg2 {[%emt 0:00:00]} Nc6 {[%emt 0:00:28]} 4. Nf3 {[%emt 0:01:23]} d5 {[%emt 0:01:45]} 5. cxd5 {[%emt 0:00:05]} Nxd5 {[%emt 0:00:05]} 6. O-O {[%emt 0:00:05]} Nb6 {[%emt 0:00:14]} 7. d3 {[%emt 0:00:26]} Be7 {[%emt 0:01:03]} 8. a3 {[%emt 0:00:04]} a5 {[%emt 0:00:30]} 9. Nc3 {[%emt 0:00:50]} O-O {[%emt 0:01:38]} 10. Be3 {[%emt 0:00:32]} Be6 {[%emt 0:01:56]} 11. Rc1 {[%emt 0:02:33]} Nd5 {[%emt 0:01:12]} 12. Nxd5 {[%emt 0:00:23]} Bxd5 {[%emt 0:00:13]} 13. Qa4 {[%emt 0:00:25]} Bf6 {[%emt 0:07:34]} 14. Rc5 {[%emt 0:13:45]} Ra6 {[%emt 0:23:47]} 15. Rfc1 {[%emt 0:01:27]} Be6 {[%emt 0:02:09]} 16. Nd2 {[%emt 0:11:30]} Bd7 {[%emt 0:00:33]} 17. Qd1 {[%emt 0:04:57]} Be7 {[%emt 0:05:36]} 18. R5c3 {[%emt 0:03:09]} a4 {[%emt 0:05:24]} 19. Bc5 {[%emt 0:04:24]} Bd6 {[%emt 0:00:24]} 20. e3 {[%emt 0:12:58]} Qe7 {[%emt 0:02:14]} 21. Bxd6 {[%emt 0:02:51]} cxd6 {[%emt 0:00:33]} 22. b4 {[%emt 0:01:43]} axb3 {[%emt 0:01:40]} 23. Qxb3 {[%emt 0:00:23]} Ra7 {[%emt 0:00:41]} 24. Qb2 {[%emt 0:04:24]} h6 {[%emt 0:05:35]} 25. Nc4 {[%emt 0:01:28]} Rd8 {[%emt 0:05:00]} 26. Nb6 {[%emt 0:00:51]} Be6 {[%emt 0:00:12]} 27. Nd5 {[%emt 0:01:35]} Qd7 {[%emt 0:01:17]} 28. Rb3 {[%emt 0:02:09]} f5 {[%emt 0:01:45]} 29. Rb1 {[%emt 0:05:35]} Rb8 {[%emt 0:00:49]} 30. Rb5 {[%emt 0:03:11]} Qf7 {[%emt 0:00:42]} 31. Nc3 {[%emt 0:01:49]} Nd8 {[%emt 0:02:53]} 32. Rb6 {[%emt 0:03:11]} Qc7 {[%emt 0:02:55]} 33. Nd5 {[%emt 0:01:15]} Qc5 {[%emt 0:00:34]} 34. Ra1 {[%emt 0:02:37]} Ra4 {[%emt 0:04:03]} 35. h3 {[%emt 0:05:07]} Rba8 {[%emt 0:00:22]} 36. Rb5 {[%emt 0:00:49]} Qa7 {[%emt 0:00:43]} 37. Nb6 {[%emt 0:00:29]} Rxa3 {[%emt 0:00:11]} 38. Rxa3 {[%emt 0:00:01]} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "6.4"]
[White "Hernandez Guerrero, Gilberto"]
[Black "Cezila Jr, Rubens"]
[Result "1-0"]
[ECO "C84"]
[WhiteElo "2554"]
[BlackElo "2191"]
[Annotator "ChessBase"]
[PlyCount "149"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} e5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:00]} 3. Bb5 {[%emt 0:00:13]} a6 {[%emt 0:00:05]} 4. Ba4 {[%emt 0:00:07]} Nf6 {[%emt 0:00:07]} 5. O-O {[%emt 0:00:24]} Be7 {[%emt 0:00:24]} 6. d3 {[%emt 0:00:30]} b5 {[%emt 0:00:55]} 7. Bb3 {[%emt 0:00:06]} d6 {[%emt 0:00:04]} 8. c3 {[%emt 0:00:05]} O-O {[%emt 0:00:09]} 9. Nbd2 {[%emt 0:00:12]} Na5 {[%emt 0:00:31]} 10. Bc2 {[%emt 0:00:07]} c5 {[%emt 0:00:03]} 11. Re1 {[%emt 0:00:05]} Re8 {[%emt 0:00:47]} 12. Nf1 {[%emt 0:00:19]} Bf8 {[%emt 0:00:39]} 13. Bg5 {[%emt 0:01:39]} h6 {[%emt 0:07:13]} 14. Bh4 {[%emt 0:00:23]} Nc6 {[%emt 0:00:27]} 15. Ne3 {[%emt 0:03:43]} g6 {[%emt 0:09:39]} 16. a4 {[%emt 0:04:36]} Rb8 {[%emt 0:01:22]} 17. axb5 {[%emt 0:05:40]} axb5 {[%emt 0:00:04]} 18. Bb3 {[%emt 0:00:16]} Bg7 {[%emt 0:01:09]} 19. Qc2 {[%emt 0:15:54]} Be6 {[%emt 0:09:36]} 20. Bxf6 {[%emt 0:03:05]} Bxf6 {[%emt 0:03:48]} 21. Ra6 {[%emt 0:01:20]} Qc8 {[%emt 0:03:13]} 22. Rea1 {[%emt 0:02:06]} Bd7 {[%emt 0:04:28]} 23. Nd5 {[%emt 0:05:10]} Bd8 {[%emt 0:00:33]} 24. h3 {[%emt 0:04:35]} Kg7 {[%emt 0:00:22]} 25. Qe2 {[%emt 0:00:12]} Rf8 {[%emt 0:03:15]} 26. Nd2 {[%emt 0:02:08]} Be6 {[%emt 0:03:41]} 27. Ne3 {[%emt 0:01:36]} Bd7 {[%emt 0:00:39]} 28. Nd5 {[%emt 0:01:34]} Be6 {[%emt 0:00:17]} 29. f4 {[%emt 0:07:19]} exf4 {[%emt 0:00:55]} 30. Nxf4 {[%emt 0:00:17]} Bxb3 {[%emt 0:00:04]} 31. Nxb3 {[%emt 0:00:09]} Bf6 {[%emt 0:00:16]} 32. Nd5 {[%emt 0:05:30]} Be5 {[%emt 0:00:32]} 33. Nd2 {[%emt 0:01:30]} b4 {[%emt 0:03:49]} 34. Nc4 {[%emt 0:01:13]} bxc3 {[%emt 0:00:19]} 35. bxc3 {[%emt 0:01:11]} Rb1+ {[%emt 0:00:31]} 36. Rxb1 {[%emt 0:01:35]} Qxa6 {[%emt 0:00:04]} 37. g4 {[%emt 0:10:26]} Qc8 {[%emt 0:08:30]} 38. Rb6 {[%emt 0:03:31]} h5 {[%emt 0:06:47]} 39. Qf2 {[%emt 0:08:39]} f6 {[%emt 0:01:15]} 40. gxh5 {[%emt 0:02:56]} Qxh3 {[%emt 0:03:20]} 41. Rb7+ {[%emt 0:37:55]} Kh8 {[%emt 0:34:40]} 42. hxg6 {[%emt 0:01:42]} Qg4+ {[%emt 0:00:05]} 43. Qg2 {[%emt 0:00:41]} Qd1+ {[%emt 0:00:05]} 44. Kf2 {[%emt 0:00:00]} Qc2+ {[%emt 0:00:00]} 45. Kf3 {[%emt 0:00:00]} Qd1+ {[%emt 0:00:00]} 46. Ke3 {[%emt 0:00:00]} Qe1+ {[%emt 0:00:00]} 47. Qe2 {[%emt 0:00:00]} Qg3+ {[%emt 0:00:00]} 48. Qf3 {[%emt 0:00:00]} Qe1+ {[%emt 0:00:00]} 49. Qe2 {[%emt 0:00:00]} Qg3+ {[%emt 0:00:00]} 50. Kd2 {[%emt 0:00:00]} Qxg6 {[%emt 0:00:00]} 51. Kc2 {[%emt 0:00:00]} Rf7 {[%emt 0:00:00]} 52. Rb6 {[%emt 0:00:00]} Nd8 {[%emt 0:00:00]} 53. Nxd6 {[%emt 0:00:00]} Rh7 {[%emt 0:00:00]} 54. Kb3 {[%emt 0:00:00]} Rh2 {[%emt 0:00:00]} 55. Qf1 {[%emt 0:00:00]} Rh7 {[%emt 0:22:26]} 56. Nc4 {[%emt 0:00:00]} Rb7 {[%emt 0:00:33]} 57. Nxe5 {[%emt 0:00:00]} Rxb6+ {[%emt 0:00:12]} 58. Nxb6 {[%emt 0:00:00]} fxe5 {[%emt 0:00:02]} 59. Qf8+ {[%emt 0:00:00]} Qg8+ {[%emt 0:00:04]} 60. Qxg8+ {[%emt 0:00:00]} Kxg8 {[%emt 0:00:03]} 61. Nd7 {[%emt 0:00:00]} Kf7 {[%emt 0:00:33]} 62. Kc4 {[%emt 0:00:36]} Ke6 {[%emt 0:00:16]} 63. Nxc5+ {[%emt 0:00:06]} Kd6 {[%emt 0:00:03]} 64. Kb5 {[%emt 0:00:14]} Nf7 {[%emt 0:00:15]} 65. Nb7+ {[%emt 0:00:21]} Kc7 {[%emt 0:00:09]} 66. Na5 {[%emt 0:00:09]} Kd6 {[%emt 0:00:02]} 67. Nc4+ {[%emt 0:00:10]} Ke6 {[%emt 0:00:05]} 68. Kc6 {[%emt 0:00:54]} Ng5 {[%emt 0:00:22]} 69. Nd2 {[%emt 0:01:52]} Nf7 {[%emt 0:00:21]} 70. Nb3 {[%emt 0:00:29]} Nd8+ {[%emt 0:00:13]} 71. Kc7 {[%emt 0:00:13]} Ke7 {[%emt 0:00:05]} 72. Nc5 {[%emt 0:00:11]} Nf7 {[%emt 0:00:08]} 73. Kc6 {[%emt 0:00:11]} Ng5 {[%emt 0:00:29]} 74. Kd5 {[%emt 0:00:30]} Nf3 {[%emt 0:00:18]} 75. c4 {[%emt 0:01:03]} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "6.5"]
[White "Rodi, Luis Ernesto"]
[Black "Diamant, Andre"]
[Result "0-1"]
[ECO "B51"]
[WhiteElo "2341"]
[BlackElo "2533"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,93,0,0,-8,0,23,-9,7,7,31,23,28,2,17,-4,0,-15,0,-16,0,-34,-34,-31,-39,-42,-41,-88,-65,-74,-83,-139,0,-146,-116,-375,-389,-387,-396,-401,-401,-408,-406,-408,-391,-374,-399,-424,-419,-425,-495,-484,-427,-412,0,-466,-416,-390,-369,-917,-952,-886,-879,-866,-862,-820,-776,-771,-745,-704,-695,-5065,-5065,-5215]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. Re1 Nf6 6. c3 a6 7. Bf1 Bg4 8. d3 e6 9. Nbd2 Be7 10. h3 Bh5 11. g4 Bg6 12. Nh4 Nd7 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7} 13. Ng2 e5 $146 (13... O-O 14. f4 h6 15. Nf3 Bh7 16. f5 Nde5 17. Nf4 Nxf3+ 18. Qxf3 Bh4 19. Rd1 b5 20. Qe2 {1-0 (65) Caruana,F (2774)-Gelfand,B (2755) Moscow 2013}) 14. Nc4 b5 {The position is equal.} 15. Nce3 Bg5 16. Nd5 {And now Bxg5 would win.} Bxc1 17. Qxc1 h5 18. Qe3 hxg4 19. hxg4 Nf8 20. Qg3 Ne6 21. Nge3 Qg5 22. a4 b4 (22... Qh6 $6 23. Bg2 $16) 23. Nf5 Rd8 (23... Bxf5 $2 24. exf5 Rh4 25. f3 $18) 24. d4 {[#]} bxc3 $1 (24... cxd4 $6 25. cxb4 Nf4 26. Nxf4 $11 (26. Nxg7+ $2 Kf8 $19)) (24... Bxf5 25. exf5 (25. gxf5 Qh6 $14) 25... Qh4 26. Qxh4 $16) 25. bxc3 cxd4 (25... Bxf5 26. exf5 (26. gxf5 Qh6 $11) 26... Qh4 27. Qxh4 $16) 26. Bxa6 {[#]} (26. Bg2 $142) 26... Nf4 (26... Bxf5 27. gxf5 Qh5 28. Qg2 $16) (26... Kf8 $1 $17 {White must now prevent ...Nf4.} 27. Rac1 Bxf5 28. exf5 Ne7 29. fxe6 (29. Nxe7 $2 Nf4 $19) 29... Nxd5 30. cxd4 Nf4) 27. Bf1 ({Don't blunder} 27. Nxg7+ $2 Kf8 $19) (27. Nxf4 $11 exf4 28. Qg2) 27... dxc3 $40 {[%mdl 128] aiming for ...Bxf5. Black goes for the king.} 28. a5 $2 {[%mdl 8192]} (28. Nxf4 $17 exf4 29. Qxc3 Qxg4+ 30. Bg2 Bxf5 31. f3) 28... Bxf5 $19 29. gxf5 {[#]} Qh6 {Played: Nc6-d4} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "6.6"]
[White "Aranha Filho, Alvaro Z."]
[Black "Galego, Luis"]
[Result "1/2-1/2"]
[ECO "A53"]
[WhiteElo "2304"]
[BlackElo "2483"]
[Annotator "ChessBase"]
[PlyCount "17"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:09:12]} 2. c4 {[%emt 0:00:11]} d6 {[%emt 0:00:58]} 3. Nc3 {[%emt 0:00:13]} Nbd7 {[%emt 0:01:28]} 4. Nf3 {[%emt 0:00:27]} e5 {[%emt 0:11:09]} 5. g3 {[%emt 0:00:21]} Be7 {[%emt 0:01:05]} 6. Bg2 {[%emt 0:00:29]} O-O {[%emt 0:00:06]} 7. O-O {[%emt 0:00:16]} c6 {[%emt 0:00:33]} 8. e4 {[%emt 0:04:40]} a6 {[%emt 0:01:38]} 9. Rb1 {[%emt 0:09:23]} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "6.7"]
[White "Perdomo, Leandro"]
[Black "Carraro, Denise"]
[Result "1-0"]
[ECO "E20"]
[WhiteElo "2474"]
[BlackElo "2177"]
[Annotator "RC"]
[PlyCount "47"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:00:00]} Bb4 {[%emt 0:00:19]} 4. g3 {[%emt 0:01:15]} c5 {[%emt 0:00:16]} 5. Nf3 {[%emt 0:00:02]} cxd4 {[%emt 0:01:01]} 6. Nxd4 {[%emt 0:00:05]} O-O {[%emt 0:00:04]} 7. Bg2 {[%emt 0:00:17]} d5 {[%emt 0:00:28]} 8. Nc2 {[%emt 0:15:37]} Bxc3+ {[%emt 0:04:50]} 9. bxc3 {[%emt 0:00:03]} Qc7 {[%emt 0:07:09]} 10. Ne3 {[%emt 0:03:28]} Rd8 {[%emt 0:08:07]} 11. cxd5 {[%emt 0:08:21]} exd5 {[%emt 0:01:50]} 12. O-O {[%emt 0:01:08]} Be6 {[%emt 0:00:19]} 13. Bb2 {[%emt 0:06:58]} Nc6 {[%emt 0:01:18]} 14. Qa4 {[%emt 0:03:04]} b5 {[%emt 0:05:17]} 15. Qh4 {[%emt 0:06:55]} Rab8 {[%emt 0:06:47]} 16. Rfd1 {[%emt 0:08:11]} Qe5 {[%emt 0:11:52]} 17. Rd2 {[%emt 0:13:47]} Ne4 {[%emt 0:30:29]} 18. c4 {[%emt 0:05:29]} Qc7 {[%emt 0:00:02]} 19. Nxd5 {[%emt 0:13:45]} Bxd5 {[%emt 0:00:34]} 20. Rxd5 {[%emt 0:00:17]} Nd6 {[%emt 0:10:34]} 21. Rc5 {[%emt 0:02:39]} Rb6 {[%emt 0:04:46]} 22. cxb5 {[%emt 0:02:50]} Rxb5 {[%emt 0:03:28]} 23. Rxb5 {[%emt 0:00:49]} Nxb5 {[%emt 0:00:05]} 24. Bxc6 {[%emt 0:00:05]} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "6.8"]
[White "Fernandez, Maria Florencia"]
[Black "Ambartsumova, Karina"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2241"]
[BlackElo "2341"]
[Annotator "NA"]
[PlyCount "108"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:02:11]} Nf6 {[%emt 0:00:12]} 2. c4 {[%emt 0:00:10]} e6 {[%emt 0:00:45]} 3. Nc3 {[%emt 0:00:14]} d5 {[%emt 0:00:10]} 4. cxd5 {[%emt 0:00:30]} exd5 {[%emt 0:00:12]} 5. Bg5 {[%emt 0:00:05]} c6 {[%emt 0:01:17]} 6. e3 {[%emt 0:00:16]} Be7 {[%emt 0:01:05]} 7. Bd3 {[%emt 0:00:28]} Nbd7 {[%emt 0:03:50]} 8. Qc2 {[%emt 0:00:51]} h6 {[%emt 0:00:15]} 9. Bh4 {[%emt 0:00:14]} Nh5 {[%emt 0:00:26]} 10. Bxe7 {[%emt 0:00:23]} Qxe7 {[%emt 0:00:06]} 11. Nge2 {[%emt 0:01:16]} Nb6 {[%emt 0:07:45]} 12. O-O-O {[%emt 0:02:09]} Bd7 {[%emt 0:02:06]} 13. Kb1 {[%emt 0:01:53]} O-O-O {[%emt 0:01:38]} 14. Na4 {[%emt 0:11:21]} Nxa4 {[%emt 0:04:35]} 15. Qxa4 {[%emt 0:00:06]} Kb8 {[%emt 0:01:55]} 16. Rc1 {[%emt 0:06:49]} Qg5 {[%emt 0:12:51]} 17. Ng3 Nxg3 {[%emt 0:03:45]} 18. hxg3 {[%emt 0:25:41]} c5 {[%emt 0:05:45]} 19. Qa5 {[%emt 0:07:30]} Bf5 {[%emt 0:10:16]} 20. Qc3 {[%emt 0:16:24]} c4 {[%emt 0:09:25]} 21. Bxf5 {[%emt 0:00:05]} Qxf5+ {[%emt 0:00:03]} 22. Rc2 {[%emt 0:00:09]} h5 {[%emt 0:04:12]} 23. Ka1 {[%emt 0:02:19]} Rc8 {[%emt 0:04:13]} 24. Rhc1 {[%emt 0:05:00]} Rc6 {[%emt 0:07:18]} 25. Qe1 {[%emt 0:02:08]} Rhc8 {[%emt 0:05:12]} 26. f3 {[%emt 0:00:20]} Re8 {[%emt 0:01:10]} 27. b3 {[%emt 0:05:08]} Rce6 {[%emt 0:07:39]} 28. bxc4 {[%emt 0:01:23]} Rxe3 {[%emt 0:00:18]} 29. Qb4 {[%emt 0:04:26]} dxc4 {[%emt 0:03:23]} 30. Rxc4 {[%emt 0:00:42]} Qd7 {[%emt 0:00:30]} 31. Rc5 {[%emt 0:01:48]} Rd3 {[%emt 0:02:41]} 32. d5 {[%emt 0:02:18]} Rxd5 {[%emt 0:00:11]} 33. Qf4+ {[%emt 0:00:01]} Ka8 {[%emt 0:00:06]} 34. Rc7 {[%emt 0:01:49]} Qe6 {[%emt 0:00:26]} 35. Rxf7 g5 {[%emt 0:00:54]} 36. Qf6 {[%emt 0:01:15]} Qxf6+ {[%emt 0:00:31]} 37. Rxf6 {[%emt 0:00:01]} Rd2 {[%emt 0:00:41]} 38. Re6 {[%emt 0:00:06]} Red8 {[%emt 0:00:28]} 39. Rg6 {[%emt 0:00:34]} Rxg2 {[%emt 0:00:32]} 40. Rxg5 {[%emt 0:00:04]} a6 {[%emt 0:00:23]} 41. Rf1 {[%emt 0:06:20]} Rdd2 {[%emt 0:03:53]} 42. f4 {[%emt 0:01:09]} Rxa2+ {[%emt 0:02:46]} 43. Kb1 {[%emt 0:00:01]} Rgb2+ {[%emt 0:15:37]} 44. Kc1 {[%emt 0:00:06]} Rc2+ {[%emt 0:00:40]} 45. Kb1 {[%emt 0:00:34]} Rcb2+ {[%emt 0:02:23]} 46. Kc1 {[%emt 0:00:02]} Rg2 {[%emt 0:04:07]} 47. Kb1 {[%emt 0:00:32]} Ra3 {[%emt 0:00:56]} 48. Rxh5 {[%emt 0:04:58]} Raxg3 {[%emt 0:00:35]} 49. Rhh1 {[%emt 0:01:24]} a5 {[%emt 0:02:24]} 50. f5 {[%emt 0:00:07]} Rb3+ {[%emt 0:01:28]} 51. Ka1 {[%emt 0:00:26]} Ra3+ {[%emt 0:00:35]} 52. Kb1 {[%emt 0:00:05]} Rb3+ {[%emt 0:00:42]} 53. Ka1 {[%emt 0:00:04]} Ra3+ {[%emt 0:00:28]} 54. Kb1 {[%emt 0:01:09]} Rb3+ {[%emt 0:00:31] Kb2} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "6.9"]
[White "Labussiere, Victor"]
[Black "Matsuura, Everaldo"]
[Result "1/2-1/2"]
[ECO "A09"]
[WhiteElo "2295"]
[BlackElo "2448"]
[Annotator "NA"]
[PlyCount "71"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. Nf3 {[%emt 0:03:32]} d5 {[%emt 0:00:10]} 2. c4 {[%emt 0:02:12]} d4 {[%emt 0:00:19]} 3. b4 {[%emt 0:01:15]} f6 {[%emt 0:00:16]} 4. Na3 {[%emt 0:04:21]} e5 {[%emt 0:01:41]} 5. Nc2 {[%emt 0:00:15]} c5 {[%emt 0:19:08]} 6. bxc5 {[%emt 0:07:14]} Bxc5 {[%emt 0:00:47]} 7. d3 {[%emt 0:00:17]} Ne7 {[%emt 0:01:04]} 8. g3 {[%emt 0:05:25]} O-O {[%emt 0:05:47]} 9. Bg2 {[%emt 0:01:00]} Nbc6 {[%emt 0:04:39]} 10. O-O {[%emt 0:06:47]} Bg4 {[%emt 0:02:52]} 11. Nd2 {[%emt 0:06:43]} f5 {[%emt 0:01:28]} 12. Rb1 {[%emt 0:15:15]} Rb8 $11 {[%emt 0:01:01]} 13. Rb5 {[%emt 0:02:56]} b6 {[%emt 0:03:20]} 14. Nb3 {[%emt 0:20:08]} Bd6 {[%emt 0:04:20]} 15. Bg5 {[%emt 0:00:54]} Qc7 {[%emt 0:04:06]} 16. Bxe7 {[%emt 0:01:36]} Nxe7 {[%emt 0:04:34]} 17. Nb4 {[%emt 0:00:32]} Bxb4 {[%emt 0:05:45]} 18. Rxb4 {[%emt 0:00:04]} Qd6 {[%emt 0:06:06]} 19. Rb5 {[%emt 0:03:15]} a6 {[%emt 0:12:30]} 20. c5 {[%emt 0:00:55]} bxc5 {[%emt 0:02:09]} 21. Rxc5 {[%emt 0:00:04]} Rfc8 {[%emt 0:00:27]} 22. Rxc8+ {[%emt 0:02:47]} Rxc8 {[%emt 0:00:18]} 23. Qd2 {[%emt 0:00:23]} Nd5 {[%emt 0:01:48]} 24. Bxd5+ {[%emt 0:00:39]} Qxd5 {[%emt 0:00:08]} 25. f3 {[%emt 0:00:14]} Bh5 {[%emt 0:02:19]} 26. Rc1 {[%emt 0:01:51]} Re8 {[%emt 0:02:31]} 27. Rc5 {[%emt 0:05:29]} Qd6 {[%emt 0:00:15]} 28. Qc1 {[%emt 0:00:05]} Bf7 {[%emt 0:01:28]} 29. Rc8 {[%emt 0:00:45]} Qd7 {[%emt 0:04:18]} 30. Rxe8+ {[%emt 0:00:51]} Qxe8 {[%emt 0:00:07]} 31. Qc5 {[%emt 0:02:18]} g6 {[%emt 0:01:41]} 32. Qd6 {[%emt 0:00:55]} Qe6 {[%emt 0:04:35]} 33. Qd8+ {[%emt 0:02:35]} Qe8 {[%emt 0:00:20]} 34. Qd6 {[%emt 0:01:46]} Qe6 {[%emt 0:00:15]} 35. Qd8+ {[%emt 0:01:05]} Qe8 {[%emt 0:00:25]} 36. Qd6 {[%emt 0:01:01]} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "6.10"]
[White "Abrantes, Tiago Garrido"]
[Black "Zambrana, Oswaldo"]
[Result "0-1"]
[ECO "A32"]
[WhiteElo "2159"]
[BlackElo "2445"]
[Annotator "NA"]
[PlyCount "94"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:06:02]} 2. c4 {[%emt 0:00:00]} c5 {[%emt 0:00:08]} 3. Nf3 {[%emt 0:00:02]} cxd4 {[%emt 0:04:58]} 4. Nxd4 {[%emt 0:00:10]} e6 {[%emt 0:00:05]} 5. g3 {[%emt 0:00:25]} Qc7 {[%emt 0:00:44]} 6. b3 {[%emt 0:03:22]} Bb4+ {[%emt 0:00:30]} 7. Bd2 {[%emt 0:00:20]} Bc5 {[%emt 0:00:38]} 8. e3 {[%emt 0:24:23]} Qe5 {[%emt 0:09:59]} 9. Nc2 {[%emt 0:16:17]} Ne4 {[%emt 0:05:15]} 10. Bg2 {[%emt 0:01:22]} Nc6 {[%emt 0:11:28]} 11. O-O {[%emt 0:02:33]} Nxd2 {[%emt 0:03:32]} 12. Qxd2 {[%emt 0:00:50]} O-O {[%emt 0:00:34]} 13. Nc3 {[%emt 0:00:21]} Be7 $14 {[%emt 0:04:52]} 14. Rad1 {[%emt 0:06:34]} Rd8 {[%emt 0:01:10]} 15. Nd4 {[%emt 0:04:44]} Nxd4 {[%emt 0:01:47]} 16. exd4 {[%emt 0:02:39]} Qh5 {[%emt 0:08:01]} 17. Qe3 {[%emt 0:02:53]} d6 {[%emt 0:04:18]} 18. Rfe1 {[%emt 0:01:19]} Bf8 {[%emt 0:01:05]} 19. h3 {[%emt 0:02:27]} Qa5 {[%emt 0:02:26]} 20. Kh2 {[%emt 0:06:20]} a6 {[%emt 0:01:01]} 21. Rb1 {[%emt 0:02:19]} g6 {[%emt 0:04:33]} 22. Rec1 {[%emt 0:03:22]} Bg7 {[%emt 0:01:25]} 23. b4 {[%emt 0:01:47]} Qc7 {[%emt 0:04:28]} 24. Ne4 {[%emt 0:03:07]} Bd7 {[%emt 0:06:19]} 25. d5 {[%emt 0:04:20]} Re8 {[%emt 0:04:54]} 26. Qf4 {[%emt 0:01:10]} exd5 {[%emt 0:06:50]} 27. cxd5 {[%emt 0:00:34]} Qb6 {[%emt 0:03:31]} 28. Qxd6 {[%emt 0:01:24]} Qxd6 {[%emt 0:00:07]} 29. Nxd6 {[%emt 0:00:05]} Re2 {[%emt 0:00:11]} 30. Rc7 {[%emt 0:00:15]} Ba4 {[%emt 0:01:02]} 31. Rxb7 {[%emt 0:03:17]} Rxf2 {[%emt 0:00:15]} 32. Ne4 {[%emt 0:01:12]} Rxa2 {[%emt 0:00:24]} 33. Kh1 {[%emt 0:01:37]} Rd8 {[%emt 0:00:28]} 34. Nc5 {[%emt 0:00:24]} Bb5 {[%emt 0:00:44]} 35. Bf1 {[%emt 0:02:24]} Rxd5 {[%emt 0:00:50]} 36. Bxb5 {[%emt 0:00:18]} axb5 {[%emt 0:00:01]} 37. Rxb5 {[%emt 0:02:15]} Bf8 {[%emt 0:00:01]} 38. Rb8 {[%emt 0:00:31]} Rdd2 {[%emt 0:00:13]} 39. Ne4 {[%emt 0:00:19]} Re2 {[%emt 0:00:10]} 40. Nc3 {[%emt 0:01:17]} Rh2+ {[%emt 0:00:09]} 41. Kg1 {[%emt 0:30:00]} Rag2+ {[%emt 0:31:23]} 42. Kf1 {[%emt 0:00:01]} Rxg3 {[%emt 0:00:13]} 43. Ne4 {[%emt 0:01:21]} Rgxh3 {[%emt 0:01:42]} 44. Rd1 {[%emt 0:00:59]} Rh1+ {[%emt 0:00:19]} 45. Kg2 {[%emt 0:00:18]} R3h2+ {[%emt 0:01:49]} 46. Kg3 {[%emt 0:00:01]} Rxd1 {[%emt 0:00:13]} 47. Kxh2 {[%emt 0:00:02]} Kg7 {[%emt 0:00:00]} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "6.11"]
[White "Ribeiro, Matheus Mendes Domin"]
[Black "Von Buelow, Georg"]
[Result "0-1"]
[ECO "A30"]
[WhiteElo "2061"]
[BlackElo "2363"]
[Annotator "NA"]
[PlyCount "134"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. c4 {[%emt 0:00:00]} b6 {[%emt 0:01:13]} 2. Nf3 {[%emt 0:00:53]} e6 {[%emt 0:00:40]} 3. g3 {[%emt 0:00:25]} c5 {[%emt 0:00:37]} 4. Bg2 {[%emt 0:00:28]} Bb7 {[%emt 0:00:08]} 5. O-O {[%emt 0:00:26]} Nf6 {[%emt 0:00:32]} 6. Nc3 {[%emt 0:02:08]} Be7 {[%emt 0:02:29]} 7. b3 {[%emt 0:00:55]} d6 {[%emt 0:04:02]} 8. Bb2 {[%emt 0:01:33]} a6 {[%emt 0:01:12]} 9. e3 {[%emt 0:06:56]} O-O {[%emt 0:00:50]} 10. d4 {[%emt 0:00:27]} cxd4 {[%emt 0:03:27]} 11. Nxd4 {[%emt 0:01:54]} Qc7 {[%emt 0:02:32]} 12. Bxb7 {[%emt 0:02:06]} Qxb7 {[%emt 0:00:07]} 13. Qf3 {[%emt 0:00:07]} Ra7 {[%emt 0:02:39]} 14. Rfd1 {[%emt 0:02:14]} Rc8 {[%emt 0:00:48]} 15. Qxb7 {[%emt 0:08:38]} Rxb7 {[%emt 0:00:06]} 16. Kf1 {[%emt 0:04:25]} Nc6 {[%emt 0:09:11]} 17. Nxc6 {[%emt 0:01:00]} Rxc6 {[%emt 0:00:02]} 18. Rac1 {[%emt 0:04:41]} h5 {[%emt 0:06:50]} 19. Ne2 {[%emt 0:04:34]} Kh7 {[%emt 0:02:47]} 20. Nd4 {[%emt 0:02:20]} Rc8 {[%emt 0:00:37]} 21. Ke2 {[%emt 0:02:39]} g5 {[%emt 0:02:34]} 22. h3 {[%emt 0:03:10]} Kg6 {[%emt 0:00:56]} 23. Nf3 {[%emt 0:06:37]} Ne4 {[%emt 0:02:29]} 24. g4 {[%emt 0:01:31]} hxg4 {[%emt 0:00:52]} 25. hxg4 {[%emt 0:00:00]} Rbc7 {[%emt 0:06:46]} 26. Nd4 {[%emt 0:02:59]} Bf6 {[%emt 0:02:35]} 27. f4 {[%emt 0:11:01]} Rh8 {[%emt 0:14:23]} 28. Kf3 {[%emt 0:00:47]} Nc5 {[%emt 0:00:41]} 29. Rh1 {[%emt 0:00:56]} Rcc8 {[%emt 0:01:32]} 30. Rcd1 {[%emt 0:02:26]} e5 {[%emt 0:04:16]} 31. Nf5 {[%emt 0:01:00]} e4+ {[%emt 0:05:54]} 32. Kg3 {[%emt 0:02:09]} Bxb2 {[%emt 0:00:39]} 33. Ne7+ {[%emt 0:01:39]} Kg7 {[%emt 0:00:51]} 34. Nxc8 {[%emt 0:00:37]} Rxc8 {[%emt 0:00:03]} 35. Rxd6 {[%emt 0:01:20]} b5 {[%emt 0:01:26]} 36. cxb5 {[%emt 0:04:34]} axb5 {[%emt 0:00:08]} 37. Rb6 {[%emt 0:00:46]} Ne6 {[%emt 0:01:45]} 38. f5 {[%emt 0:07:20]} Be5+ {[%emt 0:01:21]} 39. Kh3 {[%emt 0:00:06]} Nc7 {[%emt 0:01:02]} 40. Rc6 {[%emt 0:02:08]} Ra8 {[%emt 0:03:16]} 41. Rc2 {[%emt 0:36:50]} Nd5 {[%emt 0:43:05]} 42. Rc5 {[%emt 0:00:00]} Rh8+ {[%emt 0:00:00]} 43. Kg2 {[%emt 0:00:00]} Nxe3+ {[%emt 0:00:00]} 44. Kg1 {[%emt 0:00:00]} Rd8 {[%emt 0:00:00]} 45. Rxe5 {[%emt 0:00:00]} Rd1+ {[%emt 0:00:00]} 46. Kf2 {[%emt 0:00:00]} Nxg4+ {[%emt 0:00:00]} 47. Kg3 {[%emt 0:00:00]} Rxh1 {[%emt 0:00:00]} 48. Kxg4 {[%emt 0:00:00]} Kf6 {[%emt 0:00:00]} 49. Re8 {[%emt 0:00:00]} Rg1+ {[%emt 0:00:00]} 50. Kh3 {[%emt 0:00:00]} Kxf5 {[%emt 0:00:00]} 51. Kh2 {[%emt 0:00:00]} Ra1 {[%emt 0:00:00]} 52. Kg3 {[%emt 0:00:00]} Rxa2 {[%emt 0:00:00]} 53. Rb8 {[%emt 0:00:00]} Ra5 {[%emt 0:00:00]} 54. Rb6 {[%emt 0:00:00]} Ke5 {[%emt 0:00:00]} 55. Kg4 {[%emt 0:00:00]} f5+ {[%emt 0:00:00]} 56. Kxg5 {[%emt 0:00:00]} f4 {[%emt 0:00:00]} 57. b4 {[%emt 0:00:00]} Ra1 {[%emt 0:00:00]} 58. Rxb5+ {[%emt 0:00:00]} Kd4 {[%emt 0:00:00]} 59. Ra5 {[%emt 0:00:00]} Rf1 {[%emt 0:00:00]} 60. Ra2 {[%emt 0:00:00]} f3 {[%emt 0:00:00]} 61. b5 {[%emt 0:00:00]} e3 {[%emt 0:00:00]} 62. b6 {[%emt 0:00:00]} Rb1 {[%emt 0:00:00]} 63. Ra4+ {[%emt 0:00:54]} Kc5 {[%emt 0:00:00]} 64. Re4 {[%emt 0:01:09]} f2 {[%emt 0:00:00]} 65. Rf4 {[%emt 0:00:33]} f1=Q {[%emt 0:00:00]} 66. b7 {[%emt 0:00:08]} Qg2+ {[%emt 0:00:00]} 67. Kh6 {[%emt 0:00:19]} Rh1+ {[%emt 0:00:00]} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "6.12"]
[White "Limp, Eduardo Thelio"]
[Black "Alboredo, Julia"]
[Result "1-0"]
[ECO "A48"]
[WhiteElo "2356"]
[BlackElo "2184"]
[Annotator "NA"]
[PlyCount "91"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:03:29]} Nf6 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:17]} g6 {[%emt 0:00:25]} 3. c3 {[%emt 0:00:14]} Bg7 {[%emt 0:00:37]} 4. Qc2 {[%emt 0:00:13]} d5 {[%emt 0:00:46]} 5. Bf4 {[%emt 0:00:09]} O-O {[%emt 0:00:35]} 6. Nbd2 {[%emt 0:00:13]} c5 {[%emt 0:01:39]} 7. e3 {[%emt 0:00:14]} cxd4 {[%emt 0:00:57]} 8. exd4 {[%emt 0:00:11]} Nh5 {[%emt 0:00:44]} 9. Be5 {[%emt 0:12:21]} f6 {[%emt 0:07:46]} 10. Bg3 {[%emt 0:06:50]} e5 {[%emt 0:06:48]} 11. dxe5 {[%emt 0:08:25]} fxe5 {[%emt 0:01:58]} 12. O-O-O {[%emt 0:00:22]} Nc6 {[%emt 0:13:53]} 13. Kb1 {[%emt 0:09:41]} Bf5 {[%emt 0:22:36]} 14. Bd3 {[%emt 0:00:31]} Rc8 {[%emt 0:13:13]} 15. Bxf5 gxf5 16. Bh4 {[%emt 0:07:10]} Qb6 {[%emt 0:02:59]} 17. Qb3 {[%emt 0:04:21]} Qc5 {[%emt 0:06:34]} 18. Ng5 {[%emt 0:11:50]} Rfe8 {[%emt 0:04:34]} 19. Nde4 {[%emt 0:09:10]} fxe4 {[%emt 0:00:59]} 20. Rxd5 {[%emt 0:00:11]} Na5 {[%emt 0:00:44]} 21. Rxc5+ {[%emt 0:00:26]} Nxb3 {[%emt 0:00:07]} 22. Rxc8 {[%emt 0:00:10]} Rxc8 {[%emt 0:02:49]} 23. axb3 {[%emt 0:00:09]} Nf4 {[%emt 0:01:46]} 24. Nxe4 {[%emt 0:06:02]} Nxg2 {[%emt 0:00:26]} 25. Bg3 {[%emt 0:01:22]} Rf8 {[%emt 0:03:08]} 26. Rd1 {[%emt 0:00:42]} h5 {[%emt 0:02:13]} 27. h4 {[%emt 0:04:44]} b6 {[%emt 0:01:26]} 28. b4 {[%emt 0:01:13]} Nf4 {[%emt 0:00:35]} 29. Rd2 {[%emt 0:01:26]} Bh6 {[%emt 0:01:40]} 30. Rd6 {[%emt 0:00:24]} Kg7 {[%emt 0:00:36]} 31. b5 {[%emt 0:01:19]} Rf7 {[%emt 0:00:31]} 32. Kc2 {[%emt 0:00:11]} Ng6 {[%emt 0:01:04]} 33. Kd3 {[%emt 0:04:15]} Bf4 {[%emt 0:00:12]} 34. Kc4 {[%emt 0:00:37]} Ne7 {[%emt 0:00:49]} 35. Rd7 {[%emt 0:00:42]} Nf5 {[%emt 0:00:47]} 36. Rxf7+ {[%emt 0:00:45]} Kxf7 {[%emt 0:00:01]} 37. Kd5 {[%emt 0:00:24]} Ne7+ {[%emt 0:01:11]} 38. Kd6 {[%emt 0:00:18]} Bxg3 {[%emt 0:01:13]} 39. fxg3 {[%emt 0:00:25]} Nf5+ {[%emt 0:00:31]} 40. Kxe5 {[%emt 0:00:16]} Ne3 {[%emt 0:00:10]} 41. b3 {[%emt 0:32:14]} Kg6 {[%emt 0:30:49]} 42. c4 {[%emt 0:00:42]} Kf7 {[%emt 0:00:33]} 43. Nd6+ {[%emt 0:00:31]} Kg6 {[%emt 0:00:28]} 44. Nc8 {[%emt 0:00:09]} Nf1 {[%emt 0:00:04]} 45. Nxa7 {[%emt 0:00:42]} Nxg3 {[%emt 0:00:27]} 46. c5 {[%emt 0:00:28]} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "6.13"]
[White "Rocha, Vitor Firmo de Souza"]
[Black "Guimaraes, Diogo Duarte"]
[Result "0-1"]
[ECO "C68"]
[WhiteElo "2169"]
[BlackElo "2322"]
[Annotator "NA"]
[PlyCount "96"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:07:53]} e5 {[%emt 0:05:46]} 2. Nf3 {[%emt 0:00:22]} Nc6 {[%emt 0:00:04]} 3. Bb5 {[%emt 0:00:05]} a6 {[%emt 0:01:16]} 4. Bxc6 {[%emt 0:00:34]} dxc6 {[%emt 0:00:05]} 5. d4 {[%emt 0:00:06]} exd4 {[%emt 0:02:03]} 6. Qxd4 {[%emt 0:00:06]} Qxd4 {[%emt 0:02:14]} 7. Nxd4 {[%emt 0:00:05]} c5 {[%emt 0:00:03]} 8. Ne2 {[%emt 0:00:26]} b6 {[%emt 0:00:08]} 9. Bf4 {[%emt 0:01:03]} Bb7 {[%emt 0:00:32]} 10. Nbc3 {[%emt 0:00:31]} O-O-O {[%emt 0:00:26]} 11. Rd1 {[%emt 0:00:15]} Rxd1+ {[%emt 0:01:10]} 12. Kxd1 {[%emt 0:00:05]} f5 {[%emt 0:00:24]} 13. f3 {[%emt 0:00:44]} fxe4 {[%emt 0:00:15]} 14. Nxe4 {[%emt 0:00:05]} Bxe4 {[%emt 0:00:37]} 15. fxe4 {[%emt 0:00:06]} Nf6 {[%emt 0:00:03]} 16. Ng3 {[%emt 0:00:52]} Bd6 {[%emt 0:00:25]} 17. Bxd6 {[%emt 0:01:00]} cxd6 {[%emt 0:00:00]} 18. Re1 {[%emt 0:01:52]} Re8 {[%emt 0:01:47]} 19. Re2 {[%emt 0:05:45]} Kd7 {[%emt 0:01:12]} 20. Kd2 {[%emt 0:01:28]} Re5 {[%emt 0:05:27]} 21. c4 {[%emt 0:00:54]} b5 {[%emt 0:00:35]} 22. a3 {[%emt 0:05:53]} h5 {[%emt 0:04:05]} 23. h4 {[%emt 0:00:22]} g5 {[%emt 0:00:44]} 24. hxg5 {[%emt 0:09:05]} Rxg5 {[%emt 0:00:02]} 25. Nf5 {[%emt 0:06:03]} bxc4 {[%emt 0:03:38]} 26. Kc2 {[%emt 0:10:41]} Nxe4 {[%emt 0:00:58]} 27. Ne3 {[%emt 0:04:24]} Ng3 {[%emt 0:01:41]} 28. Rd2 {[%emt 0:01:02]} Kc6 {[%emt 0:06:40]} 29. Nxc4 {[%emt 0:00:12]} d5 {[%emt 0:00:08]} 30. Na5+ {[%emt 0:05:06]} Kb5 {[%emt 0:01:04]} 31. Nb3 {[%emt 0:00:28]} Nf5 {[%emt 0:00:19]} 32. Rf2 {[%emt 0:06:04]} Rxg2 {[%emt 0:00:20]} 33. Rxg2 {[%emt 0:00:16]} Ne3+ {[%emt 0:00:05]} 34. Kd3 {[%emt 0:00:37]} Nxg2 {[%emt 0:00:06]} 35. Nd2 {[%emt 0:00:42]} h4 {[%emt 0:00:52]} 36. Ke2 {[%emt 0:00:31]} c4 {[%emt 0:01:08]} 37. Nf3 {[%emt 0:01:50]} Kc5 {[%emt 0:00:40]} 38. Kf2 {[%emt 0:00:15]} h3 {[%emt 0:00:48]} 39. Kg3 {[%emt 0:00:16]} Ne3 {[%emt 0:01:40]} 40. Nd2 {[%emt 0:00:54]} a5 {[%emt 0:00:40]} 41. Kxh3 {[%emt 0:31:14]} Nd1 {[%emt 0:30:09]} 42. Kg3 {[%emt 0:00:17]} Nxb2 {[%emt 0:00:08]} 43. Kf3 {[%emt 0:00:19]} a4 {[%emt 0:01:53]} 44. Nb1 {[%emt 0:02:25]} d4 {[%emt 0:00:15]} 45. Nd2 {[%emt 0:00:55]} c3 {[%emt 0:00:09]} 46. Ne4+ {[%emt 0:00:07]} Kd5 {[%emt 0:00:56]} 47. Nf6+ {[%emt 0:00:26]} Kc4 {[%emt 0:00:04]} 48. Ke2 {[%emt 0:00:15]} d3+ {[%emt 0:00:04]} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "6.14"]
[White "Lima, Darcy"]
[Black "Andrade, Roberto Luiz Costa"]
[Result "1-0"]
[ECO "D79"]
[WhiteElo "2528"]
[BlackElo "2087"]
[Annotator "ChessBase"]
[PlyCount "131"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. Nf3 {[%emt 0:00:17]} Nf6 {[%emt 0:00:09]} 2. c4 {[%emt 0:01:07]} c6 {[%emt 0:02:14]} 3. g3 {[%emt 0:04:08]} g6 {[%emt 0:02:31]} 4. Bg2 {[%emt 0:00:27]} Bg7 {[%emt 0:00:02]} 5. O-O {[%emt 0:00:18]} O-O {[%emt 0:00:19]} 6. d4 {[%emt 0:00:12]} d5 {[%emt 0:00:51]} 7. cxd5 {[%emt 0:02:12]} cxd5 {[%emt 0:00:18]} 8. Ne5 {[%emt 0:00:19]} Ng4 {[%emt 0:09:09]} 9. Nxg4 {[%emt 0:15:32]} Bxg4 {[%emt 0:00:11]} 10. Nc3 {[%emt 0:00:03]} Nc6 {[%emt 0:04:28]} 11. h3 {[%emt 0:03:49]} Bd7 {[%emt 0:12:07]} 12. Nxd5 {[%emt 0:04:13]} Nxd4 {[%emt 0:04:44]} 13. Bg5 {[%emt 0:01:12]} Re8 {[%emt 0:00:41]} 14. e4 {[%emt 0:01:45]} h6 {[%emt 0:02:58]} 15. Bxh6 {[%emt 0:01:56]} Bxh6 {[%emt 0:02:09]} 16. Qxd4 {[%emt 0:00:08]} Bg7 {[%emt 0:00:19]} 17. Qd2 {[%emt 0:17:22]} Bb5 {[%emt 0:08:35]} 18. Rfd1 {[%emt 0:00:13]} Ba4 {[%emt 0:01:32]} 19. Re1 {[%emt 0:06:31]} e6 {[%emt 0:02:32]} 20. Qb4 {[%emt 0:00:02]} exd5 {[%emt 0:04:46]} 21. Qxa4 {[%emt 0:00:04]} dxe4 {[%emt 0:00:34]} 22. Rxe4 {[%emt 0:00:29]} Rxe4 {[%emt 0:00:21]} 23. Qxe4 {[%emt 0:15:21]} Bxb2 {[%emt 0:02:34]} 24. Rb1 {[%emt 0:00:32]} Bd4 {[%emt 0:18:04]} 25. Rxb7 {[%emt 0:02:54]} Qf6 {[%emt 0:01:43]} 26. Qf3 {[%emt 0:00:20]} Qxf3 {[%emt 0:00:51]} 27. Bxf3 {[%emt 0:00:03]} Rd8 {[%emt 0:00:29]} 28. Be2 {[%emt 0:07:30]} Rd6 {[%emt 0:00:24]} 29. Kg2 {[%emt 0:00:25]} Rf6 {[%emt 0:02:00]} 30. f4 {[%emt 0:02:04]} g5 {[%emt 0:02:01]} 31. Kf3 {[%emt 0:00:51]} gxf4 {[%emt 0:00:48]} 32. gxf4 {[%emt 0:00:02]} Kg7 {[%emt 0:00:53]} 33. Ke4 {[%emt 0:03:32]} Bb6 {[%emt 0:00:57]} 34. Bc4 {[%emt 0:00:08]} Bc5 {[%emt 0:03:18]} 35. f5 {[%emt 0:00:40]} Bf2 {[%emt 0:00:53]} 36. a4 {[%emt 0:02:43]} a5 {[%emt 0:01:36]} 37. Bd5 {[%emt 0:01:45]} Be1 {[%emt 0:02:02]} 38. Ra7 {[%emt 0:00:10]} Bb4 {[%emt 0:01:12]} 39. h4 {[%emt 0:00:28]} Be1 {[%emt 0:00:49]} 40. h5 {[%emt 0:00:06]} Bd2 {[%emt 0:02:52]} 41. Ke5 {[%emt 0:31:53]} Bc3+ {[%emt 0:30:16]} 42. Kf4 {[%emt 0:00:08]} Bd2+ {[%emt 0:01:07]} 43. Kg4 {[%emt 0:02:28]} Bc3 {[%emt 0:02:03]} 44. Ba2 {[%emt 0:04:08]} Bd2 {[%emt 0:01:09]} 45. Bc4 {[%emt 0:00:00]} Bb4 {[%emt 0:00:00]} 46. Kf4 {[%emt 0:00:00]} Bd2+ {[%emt 0:00:00]} 47. Ke4 {[%emt 0:00:00]} Bb4 {[%emt 0:00:00]} 48. h6+ {[%emt 0:00:00]} Kxh6 {[%emt 0:00:00]} 49. Bxf7 {[%emt 0:00:00]} Kg5 {[%emt 0:00:00]} 50. Be6 {[%emt 0:00:00]} Rh6 {[%emt 0:00:00]} 51. Kd5 {[%emt 0:00:00]} Bc3 {[%emt 0:00:00]} 52. Rc7 {[%emt 0:00:00]} Bb4 {[%emt 0:00:00]} 53. Ke5 {[%emt 0:00:00]} Rh1 {[%emt 0:00:00]} 54. Rg7+ {[%emt 0:00:00]} Kh6 {[%emt 0:00:00]} 55. Rg6+ {[%emt 0:00:00]} Kh7 {[%emt 0:00:00]} 56. Bg8+ {[%emt 0:00:00]} Kh8 {[%emt 0:00:00]} 57. Bd5 {[%emt 0:00:00]} Re1+ {[%emt 0:00:00]} 58. Kf6 {[%emt 0:00:00]} Be7+ {[%emt 0:00:39]} 59. Kf7 {[%emt 0:00:00]} Kh7 {[%emt 0:00:20]} 60. f6 {[%emt 0:00:00]} Bb4 {[%emt 0:02:46]} 61. Rg3 {[%emt 0:00:03]} Kh6 {[%emt 0:00:04]} 62. Bf3 {[%emt 0:02:54]} Bc3 {[%emt 0:01:33]} 63. Rg6+ {[%emt 0:00:08]} Kh7 {[%emt 0:00:21]} 64. Rg5 {[%emt 0:01:21]} Bd2 {[%emt 0:01:19]} 65. Rh5+ {[%emt 0:00:16]} Bh6 {[%emt 0:00:10]} 66. Bg4 {[%emt 0:00:13]} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "6.15"]
[White "Alonso, Salvador"]
[Black "Urquiza, Marcello de Albuquer"]
[Result "1-0"]
[ECO "B42"]
[WhiteElo "2481"]
[BlackElo "2075"]
[Annotator "ChessBase"]
[PlyCount "53"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} e6 {[%emt 0:00:04]} 3. d4 {[%emt 0:00:32]} cxd4 {[%emt 0:00:10]} 4. Nxd4 {[%emt 0:00:05]} a6 {[%emt 0:00:13]} 5. Bd3 {[%emt 0:01:26]} d6 {[%emt 0:01:22]} 6. O-O {[%emt 0:00:52]} Nf6 {[%emt 0:05:12]} 7. Qe2 {[%emt 0:05:02]} b6 {[%emt 0:02:29]} 8. f4 {[%emt 0:02:14]} Bb7 {[%emt 0:05:46]} 9. Nc3 {[%emt 0:03:31]} b5 {[%emt 0:05:41]} 10. Nf3 {[%emt 0:08:22]} b4 {[%emt 0:12:32]} 11. Na4 {[%emt 0:18:39]} g6 {[%emt 0:12:57]} 12. a3 {[%emt 0:19:43]} bxa3 {[%emt 0:11:26]} 13. b3 {[%emt 0:00:18]} d5 {[%emt 0:03:10]} 14. e5 {[%emt 0:02:10]} Ne4 {[%emt 0:03:03]} 15. Bxe4 {[%emt 0:02:21]} dxe4 {[%emt 0:00:31]} 16. Rd1 {[%emt 0:03:34]} Qc7 {[%emt 0:08:06]} 17. Ng5 {[%emt 0:00:17]} Qc6 {[%emt 0:03:32]} 18. Rd4 {[%emt 0:03:40]} Be7 {[%emt 0:06:51]} 19. Nxe4 {[%emt 0:01:45]} O-O {[%emt 0:00:21]} 20. Bxa3 {[%emt 0:03:19]} Bxa3 {[%emt 0:03:25]} 21. Rxa3 {[%emt 0:00:16]} Nd7 {[%emt 0:00:36]} 22. Rc4 {[%emt 0:02:30]} Qd5 {[%emt 0:11:12]} 23. Nac3 {[%emt 0:01:48]} Rfd8 {[%emt 0:01:47]} 24. Nxd5 {[%emt 0:00:38]} exd5 {[%emt 0:00:03]} 25. Rc7 {[%emt 0:00:26]} dxe4 {[%emt 0:01:01]} 26. Rxb7 {[%emt 0:00:08]} Nc5 {[%emt 0:00:23]} 27. Rb4 {[%emt 0:02:29]} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "6.16"]
[White "Molina, Roberto Junio Brito"]
[Black "Sobrero, Sebastian"]
[Result "1/2-1/2"]
[ECO "E11"]
[WhiteElo "2448"]
[BlackElo "2059"]
[Annotator "ChessBase"]
[PlyCount "82"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:09:50]} Nf6 {[%emt 0:01:07]} 2. c4 {[%emt 0:00:07]} e6 {[%emt 0:00:35]} 3. Nf3 {[%emt 0:00:12]} Bb4+ {[%emt 0:01:24]} 4. Bd2 {[%emt 0:03:35]} Be7 {[%emt 0:00:30]} 5. Nc3 {[%emt 0:00:30]} d5 6. Qc2 {[%emt 0:03:04]} O-O {[%emt 0:04:05]} 7. e4 {[%emt 0:00:16]} dxe4 {[%emt 0:07:36]} 8. Nxe4 {[%emt 0:00:23]} Nbd7 {[%emt 0:05:36]} 9. Bc3 {[%emt 0:05:38]} Nxe4 {[%emt 0:00:10]} 10. Qxe4 {[%emt 0:00:28]} Nf6 {[%emt 0:00:34]} 11. Qc2 {[%emt 0:00:41]} b6 {[%emt 0:00:46]} 12. O-O-O Bb7 13. Ne5 {[%emt 0:02:24]} b5 {[%emt 0:09:26]} 14. cxb5 {[%emt 0:00:32]} a6 {[%emt 0:13:51]} 15. Nc6 {[%emt 0:00:56]} Bxc6 {[%emt 0:00:17]} 16. bxc6 Qd5 17. Kb1 {[%emt 0:17:47]} Qxc6 {[%emt 0:00:50]} 18. Bd3 {[%emt 0:06:48]} g6 {[%emt 0:08:26]} 19. h4 Nd5 {[%emt 0:06:49]} 20. h5 {[%emt 0:04:19]} Rab8 {[%emt 0:08:42]} 21. Bd2 {[%emt 0:02:25]} Qxc2+ {[%emt 0:04:23]} 22. Kxc2 {[%emt 0:00:32]} Nb4+ {[%emt 0:03:23]} 23. Bxb4 {[%emt 0:00:06]} Rxb4 {[%emt 0:00:08]} 24. b3 {[%emt 0:05:01]} Rxd4 {[%emt 0:06:59]} 25. a4 a5 26. hxg6 {[%emt 0:02:38]} hxg6 {[%emt 0:00:45]} 27. Bc4 {[%emt 0:03:21]} Rfd8 {[%emt 0:03:35]} 28. Rxd4 {[%emt 0:00:05]} Rxd4 {[%emt 0:00:08]} 29. Rd1 {[%emt 0:00:05]} Bc5 {[%emt 0:00:18]} 30. Rxd4 {[%emt 0:00:05]} Bxd4 {[%emt 0:00:07]} 31. f3 {[%emt 0:00:03]} Bc5 {[%emt 0:00:36]} 32. Kd3 {[%emt 0:00:16]} Kf8 {[%emt 0:00:23]} 33. g4 {[%emt 0:00:30]} Ke7 {[%emt 0:00:51]} 34. g5 {[%emt 0:02:19]} Kd6 {[%emt 0:01:16]} 35. Ke4 {[%emt 0:00:16]} Bb6 {[%emt 0:00:17]} 36. f4 {[%emt 0:00:30]} Bc5 37. Bb5 {[%emt 0:00:15]} Bb4 {[%emt 0:01:04]} 38. Be8 Ke7 {[%emt 0:00:06]} 39. Bb5 {[%emt 0:00:59]} Kd6 {[%emt 0:00:04]} 40. Be8 Ke7 {[%emt 0:00:07]} 41. Bb5 {[%emt 0:30:06]} Kd6 {[%emt 0:30:09]} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.12"]
[Round "7.1"]
[White "Martinez Alcantara, Jose Eduardo"]
[Black "Supi, Luis Paulo"]
[Result "1/2-1/2"]
[ECO "A28"]
[WhiteElo "2592"]
[BlackElo "2578"]
[Annotator "TA"]
[PlyCount "132"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,132,3,1,14,-3,0,0,0,0,0,0,0,-10,0,-21,-18,-14,0,0,0,-73,-84,-118,-112,-139,-123,-127,-134,-170,-172,-162,-142,-168,-168,-277,-197,-197,-173,-181,-161,-205,-201,-193,-193,-195,-198,-198,-198,-238,-185,-174,-160,-162,-162,-162,-162,-162,-145,-153,-156,-152,-122,-122,-122,-115,-68,-96,-95,-105,-89,-91,-94,-89,-96,-97,-97,-131,-126,-185,-185,-185,-185,-185,-185,-172,-167,-165,-126,-125,-16,-20,-21,-36,-14,-14,-14,-14,-14,-14,-14,-14,-14,-14,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. d3 d5 5. cxd5 Nxd5 6. g3 Be7 7. Bg2 Be6 8. O-O O-O 9. d4 exd4 {A29: English Opening: Four Knights Variation with 4 g3} 10. Nxd4 Nxd4 11. Qxd4 {[%cal Rc3d5]} Bf6 12. Qc5 {[%cal Rc3d5]} Nxc3 13. bxc3 c6 14. Rb1 $146 ({Predecessor:} 14. Be3 Qc7 15. Bf4 Be7 16. Bd6 Bxd6 {0-1 (16) Kopsa,P (2372)-Fischer,D (2330) GER email 2016}) 14... b6 15. Qa3 Qc8 $36 {[%mdl 2048] White is under pressure.} 16. Be3 Bc4 17. Bf3 Qe6 18. Rbd1 (18. Ra1 $11 {remains equal.}) 18... Bxa2 $17 19. Rd6 {[%mdl 64] Double Attack} Qe7 $1 20. Bf4 {[#]} Bd5 $1 {[%mdl 512]} 21. Bxd5 cxd5 22. Ra1 Qxe2 {Threatens to win with ...Be7.} 23. Rxd5 Qf3 24. Rd7 a5 {[%cal Ba7a5,Ba5a4][%mdl 32]} ({Stronger than} 24... Bxc3 25. Rc7 $16) 25. Rb1 (25. Qa4 $142) 25... Rae8 ({Not} 25... Qxc3 26. Qxc3 Bxc3 27. Bd6 $17) 26. Qb3 Re6 ({Inferior is} 26... Bxc3 27. Rc7 $16) 27. Bd2 h6 28. c4 Qxb3 29. Rxb3 a4 30. Ra3 Ra8 31. Be3 Rc6 32. Rb7 Bd8 33. Kg2 Rxc4 34. Bxb6 Rb4 35. Ra7 Rxa7 36. Bxa7 $19 {[%mdl 4096] Endgame KRB-KRB} Bf6 37. Bc5 Rb5 38. Bd6 Ra5 39. Ra2 Ra6 40. Bb4 Bd4 41. Rd2 Be5 42. Re2 Bd6 43. Re8+ Kh7 44. Bxd6 Rxd6 $17 {KR-KR} 45. Ra8 Rd4 46. Ra6 g5 47. h3 {[#]} (47. Kf1 $17) 47... h5 $1 $19 48. Kf3 Rb4 49. Ke3 h4 50. Kf3 Kg7 51. Kg2 f6 52. Ra7+ Kf8 (52... Kh6 $17 {Threatening ...hxg3.} 53. Ra5 Kg6) 53. f4 $1 $11 Rb2+ 54. Kg1 $1 Ra2 55. fxg5 {The position is equal.} fxg5 56. gxh4 gxh4 {aiming for ...a3.} 57. Kf1 Ke8 58. Ke1 Kd8 59. Kd1 Ra3 60. Kd2 Kc8 61. Ra5 Kb7 {White must now prevent ...Kb6.} 62. Rb5+ $1 Ka6 (62... Kc6 $5 63. Rb4 $8 Rg3 64. Rxh4 Kb5 $11) 63. Rb4 $1 Ka5 64. Rxh4 Rb3 65. Kc2 Rb5 66. Rh8 Kb4 {Accuracy: White = 60%, Black = 64%.} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "7.2"]
[White "Cruz, Cristhian"]
[Black "Hernandez Guerrero, Gilberto"]
[Result "1/2-1/2"]
[ECO "A21"]
[WhiteElo "2562"]
[BlackElo "2554"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,50,0,0,-7,0,0,0,0,22,0,0,0,14,0,0,0,0,-11,0,-13,12,0,0,0,23,0,0,0,11]} 1. c4 e5 2. Nc3 Bb4 3. Nd5 a5 4. a3 Be7 5. Nf3 d6 6. e3 Nf6 7. Nc3 O-O 8. Be2 Nc6 9. Qc2 d5 10. cxd5 Nxd5 11. O-O Be6 12. d3 f5 13. Rb1 {A28: English Opening: Four Knights Variation} (13. Re1 Kh8 14. Nxd5 Qxd5 15. e4 Qd6 16. exf5 Bxf5 17. Be3 Rad8 18. Rad1 Qg6 19. Qb3 Be6 20. Qa4 Bd5 {0-1 (55) Timofeev,A (2589)-Karjakin,S (2753) St Petersburg 2018}) 13... Qd7 14. Rd1 {[#]} Rad8 $146 ({Predecessor:} 14... Bf6 15. Ne4 fxe4 16. dxe4 {1-0 (63) Ribli,Z (2625)-Georgiev,K (2590) Reggio Emilia 1989}) 15. Bd2 Kh8 16. Nxd5 Bxd5 17. Bc3 Qe6 18. b4 axb4 19. axb4 e4 20. dxe4 fxe4 21. Nd4 Nxd4 22. Bxd4 c6 23. Rd2 Bh4 24. Bf1 b5 25. Ra1 Ra8 {Accuracy: White = 34%, Black = 56%.} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "7.3"]
[White "Diamant, Andre"]
[Black "Perdomo, Leandro"]
[Result "1-0"]
[ECO "C24"]
[WhiteElo "2533"]
[BlackElo "2474"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,75,19,22,59,10,25,25,35,30,64,68,116,115,143,145,160,145,127,96,166,160,162,149,162,154,164,158,164,153,176,190,258,257,236,141,141,147,151,147,147,147,156,125,391,399,393,376,577,403,562,563,1368,1387,1417,1414,1264,1147,1340,1245,5165,4417]} 1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. Nc3 Bb4 5. Nge2 d5 6. exd5 Nxd5 7. O-O Bxc3 8. Nxc3 Nxc3 9. bxc3 O-O {C28: Vienna Game: 2...Nf6 3 Bc4 Nc6} 10. Re1 (10. Qf3 $5 {[%cal Rc1a3]}) (10. f4 exf4 11. Bxf4 Na5 12. Bb3 Nxb3 13. axb3 Be6 14. Qf3 c6 15. Qg3 f6 16. Bd6 Re8 17. c4 {½-½ (32) Rublevsky,S (2702)-Khairullin,I (2652) Berlin 2015}) 10... Na5 11. Bb3 Nxb3 {White has an edge.} 12. axb3 Qf6 $146 ({Predecessor:} 12... Re8 13. Bb2 Bd7 14. d4 e4 15. c4 Qg5 16. Qc1 Qh4 17. Qe3 {½-½ (41) Balogh,M (1870)-Nemeth,Z (2004) Hungary 2016}) 13. d4 Qc6 14. Rxe5 ({Don't play} 14. dxe5 $6 Qxc3 15. Ba3 Re8 $14) 14... Qxc3 15. Ra4 {[%cal Ba1a4,Ba4c4,Bc4c7][%mdl 32]} Qc6 {[#]} 16. Ba3 $1 {Rc4 is the strong threat.} Rd8 17. Be7 Rd5 (17... Re8 $16) 18. Rc4 $18 Qd7 {Threatens to win with ...Rxe5.} 19. Rxd5 {[%mdl 64] Overworked Piece} Qxd5 20. Rxc7 b5 21. c4 bxc4 22. bxc4 Qa5 23. Rc5 Qc3 (23... Qb6 $142 24. Re5 Be6) 24. h3 a5 25. Kh2 $40 {[%mdl 128] White has strong attack.} ({Better is} 25. d5 $18) 25... h6 $16 26. Qe2 {aiming for Qe4.} Bd7 {[#]} 27. Qe4 $1 {[%cal Re4a8]} Rc8 28. Rxc8+ Bxc8 29. Qc6 Be6 $2 {[%mdl 8192]} (29... Bf5 $16 {might work better.}) 30. Qa8+ $18 Kh7 31. Qe4+ g6 (31... Kg8 {was necessary.} 32. d5 Bc8) 32. d5 Bf5 33. Qf4 {White is clearly winning.} Qe1 34. Bf8 Kg8 35. Bxh6 {White threatens Qd4 and mate.} Qe4 36. Qd6 {Qf8+ would kill now.} Kh7 37. Be3 Qxc4 38. Qf6 {Accuracy: White = 79%, Black = 41%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "7.4"]
[White "Vazquez, Guillermo"]
[Black "Limp, Eduardo Thelio"]
[Result "1/2-1/2"]
[ECO "B27"]
[WhiteElo "2506"]
[BlackElo "2356"]
[Annotator "TA"]
[PlyCount "35"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,35,31,31,22,29,25,32,35,21,22,31,33,60,21,74,76,64,51,35,0,0,0,20,0,0,0,0,-41]} 1. e4 c5 2. Nf3 b6 3. c4 Bb7 4. Nc3 Nc6 5. d4 cxd4 6. Nxd4 {A34: Symmetrical English: 2 Nc3, lines with ...d5} Nf6 7. Be3 Nxd4 $146 ({Predecessor:} 7... e6 8. f3 Qb8 9. Qd2 Be7 10. O-O-O O-O 11. g4 Nxd4 12. Bxd4 d6 13. g5 Nd7 14. Kb1 Rc8 15. Be2 a6 16. h4 Ne5 {1-0 (40) Kortschnoj,V (2625)-Winants,L (2415) Brussels 1987}) 8. Qxd4 {White is slightly better.} Ng4 9. Bc1 e5 10. Qd1 $1 {[%cal Rd1g4]} f5 {[#] And now ...Bc5 would win.} 11. Be2 ({But not} 11. exf5 Qh4 $15) (11. h3 $5 {[%cal Rh3g4]} Nf6 12. exf5 $14) 11... Bc5 (11... Qh4 $1 $11 {remains equal.} 12. Bxg4 Qxg4 13. Qxg4 fxg4) 12. Bxg4 $16 Qh4 {[%csl Gc5][%cal Rh4f2]} 13. O-O Qxg4 14. Qxg4 (14. Be3 $5 {[%cal Re3c5]}) 14... fxg4 {The position is equal.} 15. Be3 Ke7 16. Rad1 Bxe3 17. fxe3 Rhf8 18. Nd5+ {Accuracy: White = 43%, Black = 63%.} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "7.5"]
[White "Ambartsumova, Karina"]
[Black "Di Berardino, Diego Rafael"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2341"]
[BlackElo "2489"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,81,0,11,1,58,8,77,21,10,9,17,0,10,14,29,30,40,-25,0,0,0,-45,-9,-4,-12,-16,-14,-20,-18,-2,0,-5,59,28,28,26,27,22,29,10,16,16,11,10,46,46,53,46,48,59,60,39,54,51,233,244,269,268,256,252,231,211,219,215,317,306,428,406,439,336,345,324,736,699]} 1. Nf3 Nf6 2. g3 d5 3. d4 Bf5 4. c4 (4. Bg2 c6 5. c4 e6 6. Nc3 Be7 7. O-O O-O 8. b3 Ne4 9. Bb2 Qa5 10. Nxe4 Bxe4 11. Ne5 Bxg2 12. Kxg2 Rd8 13. Qc2 {½-½ (13) Berkes,F (2678)-Saric,I (2691) Brixen Bressanone 2019}) 4... e6 5. Bg2 Be7 6. Nc3 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} O-O ({Black should play} 6... c6 $11) 7. O-O a6 {[#]} (7... c6 $11 {keeps the balance.}) 8. Ne5 (8. Nh4 $1 $16) 8... c6 $11 9. Qb3 b5 10. cxd5 cxd5 11. Bf4 Qb6 12. Rfd1 Nbd7 $146 ({Predecessor:} 12... Nc6 13. Na4 Qb7 14. Nc5 Bxc5 15. dxc5 Rfc8 16. Rac1 {1-0 (39) Nikolaidis,I (2440)-Popchev,M (2475) Peristeri 1993}) 13. a4 (13. e4 $14 dxe4 {[#]} 14. Nxe4 $1 {[%mdl 512]}) 13... b4 14. a5 Qb7 15. Rdc1 Nxe5 (15... Rac8 {looks sharper.} 16. Nxd7 Nxd7 17. h4 h6 18. Na4 g5) 16. Bxe5 Rac8 17. Bxf6 Bxf6 18. e3 Be7 {Hoping for ...Qc7.} 19. Bf1 Qc6 {[%mdl 64] Pin} 20. Na2 $1 Qc2 (20... Qa8 $11) 21. Qxc2 (21. Rxc2 {with more complications.} Bxc2 22. Qxb4 Bxb4 23. Nxb4 Bb3 24. Bxa6 Rc7 25. Ra3) 21... Rxc2 22. Rxc2 Bxc2 23. Nc1 Ra8 24. b3 g5 25. Be2 Bd6 26. Kf1 e5 27. Ke1 exd4 28. exd4 Bf5 29. Kd2 Be7 30. Ra4 g4 31. Nd3 Rc8 $2 (31... Bxd3 $14 32. Bxd3 Kg7) 32. Nc5 $1 $18 Bxc5 33. dxc5 {[%mdl 4096] Endgame KRB-KRB} Rc6 34. Rxb4 Rxc5 35. Bxg4 Bg6 36. Ra4 Rc2+ (36... d4 {was called for.} 37. Rxd4 Rxa5) 37. Ke3 h5 {...Rc3+ is the strong threat.} 38. Be2 Rc6 39. b4 Re6+ 40. Kd2 Re4 $2 (40... d4 41. Ra3 Rc6) 41. Bxa6 {Accuracy: White = 56%, Black = 37%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "7.6"]
[White "Galego, Luis"]
[Black "Guimaraes, Diogo Duarte"]
[Result "1-0"]
[ECO "D70"]
[WhiteElo "2483"]
[BlackElo "2322"]
[Annotator "TA"]
[PlyCount "97"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,97,0,0,0,0,-19,40,34,43,40,43,51,53,46,43,38,93,87,123,113,157,157,156,156,159,164,162,156,176,166,193,190,196,206,228,216,224,218,229,207,254,200,200,199,202,211,198,164,208,204,283,262,337,332,346,350,347,341,347,321,455,467,464,450,535,537,484,516,535,551,672,647,876,877,1445,1292,1248,1222,1804,1636,2176,2172,2074,909,29981,29982,29961,6219,6391,984]} 1. d4 Nf6 2. Nf3 d5 3. c4 c6 4. Nbd2 Bf5 5. e3 e6 6. Nh4 {D12: Slav Defence: 3 Nf3 Nf6 4 e3 Bf5} Be4 7. Qb3 {[#] Threatens to win with f3.} (7. Be2 Nbd7 8. O-O Bd6 9. g3 Qe7 10. a3 g5 11. Nhf3 h5 12. Nxg5 h4 {1-0 (45) Giri,A (2720)-Fressinet,L (2700) Beijing 2012}) 7... Na6 $146 (7... Qb6 $11) ({Predecessor:} 7... Qc7 8. Be2 Be7 9. O-O Nbd7 10. Nxe4 dxe4 11. g3 c5 12. Bd2 O-O {0-1 (49) Popov,V (2555)-Yevseev,D (2515) Jurmala 2015}) 8. c5 $14 {White is slightly better.} ({But not} 8. Qxb7 Nb4 $17) 8... Qc8 9. f3 Bg6 10. Nxg6 hxg6 11. Bxa6 bxa6 12. O-O g5 (12... Be7 $14) 13. e4 $16 Qc7 14. e5 Nd7 15. f4 gxf4 16. Nf3 ({Don't do} 16. Rxf4 $6 f6 $11) 16... Be7 17. Bxf4 O-O-O 18. Rae1 {[%cal Ba1e1,Be1e2,Be2f2,Bf2f3][%mdl 32]} Rh5 19. Bg3 g5 20. Nd2 Rf8 21. Qd3 Nb8 22. Re2 Kd7 23. Ref2 Ke8 24. Rf3 Qa5 25. a3 Nd7 26. Qc2 Rh6 27. b4 Qb5 28. Re1 Rfh8 29. Nf1 {[%cal Bd2f1,Bf1e3,Be3g4][%mdl 32]} Nf8 30. Ne3 Ng6 31. Ng4 Nh4 32. Bxh4 ({Not} 32. Nxh6 Nxf3+ 33. gxf3 Rxh6 $14) 32... Rxh4 33. h3 R4h7 34. Qb3 Kd7 (34... Qc4 $142 35. Qxc4 dxc4) 35. a4 $18 Qb7 36. Rb1 Rb8 37. Qd3 Rg7 38. Qf1 Ke8 39. Rfb3 Bd8 40. b5 axb5 41. axb5 Qc8 42. bxc6 {[%mdl 64] [#] Discovered Attack} Rxb3 43. Rxb3 Qxc6 44. Rb8 Rg6 45. Qa1 {Threatening mate with Qa5.} Qc7 46. Qa4+ Qd7 47. c6 Qc7 48. Qb5 {White threatens Qb7 and mate.} Kf8 49. Rb7 {Accuracy: White = 73%, Black = 27%.} (49. Qb7 $142 Kg7 50. Qa8 Qxb8 {[%mdl 64] Remove Defender} 51. Qxb8) 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.12"]
[Round "7.7"]
[White "Zambrana, Oswaldo"]
[Black "Aranha Filho, Alvaro Z."]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "2445"]
[BlackElo "2304"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,107,16,15,0,0,0,15,7,15,13,20,10,17,23,19,4,16,19,25,0,0,0,7,0,0,0,0,0,0,-8,0,0,0,-6,0,-27,-27,-64,-66,-84,-4,-254,-249,-252,-206,-209,-210,-262,-262,-256,-256,-255,-261,-325,-260,-231,-253,-379,-175,-159,-58,-56,-29,-123,-78,-61,-57,-273,-273,-271,-271,-260,-249,-769,-757,-29985,-29986,-29987,-29986,-29993,-29991,-29991,-29992,-29994,-29995,-29997]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c4 b4 12. Nc2 a5 13. g3 {B33: Sicilian: Pelikan and Sveshnikov Variations} O-O 14. Bg2 Bg5 15. h4 $146 {The position is equal.} (15. O-O Ne7 16. Nce3 Bxe3 17. Nxe3 Be6 18. b3 Ra7 19. Qd3 {½-½ (52) Nepomniachtchi,I (2776)-Yu,Y (2763) Khanty-Mansiysk 2019}) ({Predecessor:} 15. O-O Ne7 16. h4 {½-½ (44) Siigur,J (2416)-Morrow,W (2430) ICCF email 2014}) 15... Bh6 16. O-O Ne7 17. b3 Nxd5 18. Qxd5 Be6 19. Qd3 Qb6 20. Rfd1 Rfd8 21. a3 bxa3 22. Rxa3 g6 23. Rda1 Rab8 24. Qe2 Rdc8 25. Qe1 Kg7 26. Kh2 Rc7 27. Bf1 Rcb7 28. R1a2 a4 29. bxa4 Qc5 30. Ne3 Rb1 $36 {[%mdl 2048] White is under pressure.} 31. Qe2 Qa5 (31... Bxe3 $1 $17 32. fxe3 h5) 32. Nd5 $2 (32. Bg2 $11 {and White has nothing to worry.}) 32... Re1 $19 33. Qd3 Bxd5 34. cxd5 {[#]} Bc1 $1 {[%cal Rc1a3]} 35. Bg2 Bxa3 36. Qxa3 Rb4 37. Qc3 Reb1 38. Bh3 R1b3 {Played: Qa5-a7} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.12"]
[Round "7.8"]
[White "Von Buelow, Georg"]
[Black "Fernandez, Maria Florencia"]
[Result "1-0"]
[ECO "B76"]
[WhiteElo "2363"]
[BlackElo "2241"]
[Annotator "TA"]
[PlyCount "167"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,167,32,47,45,16,12,-86,85,74,106,-26,-29,-25,-24,-65,-57,-83,-29,-22,-28,-23,33,31,18,33,33,35,34,29,38,34,39,29,28,28,31,33,47,47,46,30,42,44,46,41,49,43,49,49,47,45,62,62,62,62,62,58,58,56,56,42,46,12,56,56,64,56,72,76,64,61,77,77,70,62,110,107,117,97,140,126,139,115,229,234,266,262,314,313,392,397,395,393,387,386,381,366,692,689,729,725,1322,1328,1300,1189,1360,1442,1175,1106,2546,2750,2584,3112,2887,1524,4598,2689,2624,2580,2464,2126,3287,1500,2298,2361,1680,1235,29978,29979,29979,29980,29980,29981,29981,29982,29982,29983,29983,29984,29984,29985,29985,29986,29986,29987,29987,29988]} 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 {[%cal Bb8c6,Bc6d4,Bd4f5][%mdl 32]} 9. O-O-O d5 10. Kb1 Nxd4 11. e5 Nf5 12. exf6 exf6 {B76: Sicilian Dragon: Yugoslav Attack, 9 g4 and 9 0-0-0} 13. Bc5 (13. Nxd5 Nxe3 14. Qxe3 Be6 15. Bc4 f5 16. Nc3 Qe7 17. Bxe6 fxe6 18. Rhe1 Rfe8 19. Nb5 Qb4 20. Qb3 Qxb3 21. axb3 {½-½ (48) Andreikin,D (2713)-Morozevich,A (2760) Moscow 2013}) 13... d4 14. Nb5 {[#]} ({Reject} 14. Bxd4 Qxd4 15. Qxd4 Nxd4 $15) (14. Bxf8 $11 {remains equal.} Qxf8 15. Nb5) 14... Be6 $2 (14... Re8 $1 $17 {stays on course. Threatens to win with ...Ne3.} 15. Nxd4 Bh6) 15. Nxd4 $16 Nxd4 16. Bxd4 (16. Qxd4 Qa5 $17) (16. Bxf8 $16 Qxf8 17. Qxd4) 16... Rc8 $11 {[#]} 17. Bc3 $146 ({Predecessor:} 17. Be2 Qc7 18. Bc3 Rfd8 19. Qc1 Qb6 20. Rxd8+ Rxd8 {0-1 (48) Sjugirov,S (2549)-Robson,R (2466) ICC INT 2008}) 17... Qb6 18. Ba5 Qc6 $1 19. Bc3 Qa4 (19... Rc7 $17) 20. b3 Qc6 21. Bb2 Bh6 (21... f5 $11) 22. Bb5 $1 $14 Bxd2 23. Bxc6 Rxc6 24. Rxd2 f5 25. c4 f6 26. f4 Kf7 27. g3 Re8 28. Re1 Rec8 29. Ba3 b6 30. Kb2 g5 31. Rf1 h6 32. Rff2 Kg6 33. Rd4 Kf7 34. Bd6 Rd8 35. Rfd2 Rdc8 36. a4 Rd8 37. Kc3 a5 38. R2d3 Rd7 39. Kd2 Rd8 40. Ke3 Re8 {...Bxc4+ is the strong threat.} 41. Kf3 Bc8 42. Kf2 Re4 43. Rd2 Re8 44. Re2 Be6 45. Ba3 $36 {[%mdl 2048] Keeping Black busy.} Bc8 46. Rd6 Rxd6 $1 47. Bxd6 {[%mdl 4096] Endgame Black must now prevent Rxe8. KRB-KRB} Be6 48. Rd2 Rc8 {[#]} 49. Ba3 $1 Rb8 50. Rd6 Rb7 51. Ke3 Rb8 52. Rc6 Rb7 (52... Bd7 $16 {keeps fighting.} 53. Rc7 Ke6) 53. Bb2 $18 Re7 54. Kd3 ({Weaker is} 54. Rxb6 Bxc4+ 55. Kd4 Re4+ 56. Kc5 Be6 $14) 54... gxf4 55. gxf4 Bd7 56. Rxf6+ Ke8 57. Ba3 Rf7 58. Rxh6 {Intending Rh8+ and mate.} Rg7 59. Rxb6 Rh7 $2 (59... Bc8 60. Rb5 Rb7 61. Re5+ Kf7) 60. c5 Rh3+ 61. Kd4 Bxa4 62. bxa4 Rxa3 {KR-KR} 63. Ke5 Rxa4 64. Ra6 Ra2 65. h4 a4 66. Ke6 {[%cal Ra6a8]} Re2+ 67. Kxf5 Rc2 68. Ke6 {[%cal Ra6a8]} Kd8 69. Kd6 {[%cal Ra6a8]} Rd2+ 70. Ke5 Re2+ 71. Kf5 Rc2 72. Ra5 (72. h5 $142 Ke7 73. Ra7+ Kf8 74. Kg6) 72... a3 73. h5 a2 74. Kg6 Rxc5 75. Rxa2 {White mates.} (75. Rxc5 $2 {loses.} a1=Q $19) 75... Rc6+ 76. Kg5 Ke7 77. h6 Kf7 78. Ra8 Rg6+ 79. Kh5 Rg1 80. h7 Rh1+ 81. Kg5 Rxh7 82. Ra7+ Kg8 83. Rxh7 Kxh7 84. Kf6 {Accuracy: White = 66%, Black = 41%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "7.9"]
[White "Carraro, Denise"]
[Black "Alonso, Salvador"]
[Result "0-1"]
[ECO "B34"]
[WhiteElo "2177"]
[BlackElo "2481"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,62,0,-2,0,-16,-12,-16,-20,-3,-51,-40,-135,-138,-144,-77,-88,-84,-78,-87,-87,-71,-95,-93,-85,-42,-45,-50,-135,-143,-137,-139,-140,-137,-132,-130,-187,-182,-287,-279,-629,-622,-1096,-603,-1085,-1070]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Nb3 Nf6 7. Be2 O-O 8. O-O d6 9. Bg5 a6 10. f4 b5 11. a3 {B70: Sicilian Dragon: 6 g3 and 6 Be2 (without a later Be3)} Bb7 12. Bf3 a5 13. a4 $146 {The position is equal.} ({Predecessor:} 13. Kh1 b4 14. axb4 axb4 15. Rxa8 Bxa8 16. Nd5 e6 17. Nxf6+ Bxf6 18. Bxf6 Qxf6 19. Qxd6 Qxb2 {0-1 (33) Bistric,F (2400)-Adorjan,A (2515) Sarajevo 1982}) 13... bxa4 14. Rxa4 Nd7 15. Nd5 ({Better is} 15. Ra1 $15) 15... Nb6 $1 $17 {[%cal Rb6a4]} ({Not} 15... Bxb2 16. c3 $14) 16. Rxa5 Nxd5 (16... Rxa5 $142 17. Nxa5 Nxd5 18. Nxc6 (18. Nxb7 $2 Qb6+ {[%mdl 64] Double Attack} 19. Rf2 Ne3 $19) 18... Qb6+ {[%mdl 64] Double Attack} 19. Rf2 Bxc6 20. exd5 Ba4) 17. Rxd5 Qb6+ 18. Kh1 Bxb2 19. Be2 Ba6 20. Bxa6 Qxa6 21. f5 Qc4 22. Nd2 Qb4 23. Bh6 (23. Qe2 $15) 23... Ra1 24. Qe2 {Black must now prevent Rb5.} Rxf1+ 25. Nxf1 {[#]} Bg7 $1 {[%cal Rg7h6]} 26. Bxg7 Kxg7 27. Qb5 (27. h3 $17) 27... Qe1 $19 {Threatens to win with ...Rb8.} 28. Kg1 {[#]} (28. Rd2 $142) 28... Rb8 $1 {[%cal Rb8b5]} 29. Qxc6 $2 (29. Qd3) 29... Rb1 {[%csl Gb1][%cal Re1f1] Black is clearly winning.} 30. Qc4 {And now Qd3 would win.} Qe3+ $1 31. Kh1 Qf2 {Accuracy: White = 25%, Black = 90%.} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "7.10"]
[White "Matsuura, Everaldo"]
[Black "Cezila Jr, Rubens"]
[Result "1-0"]
[ECO "E81"]
[WhiteElo "2448"]
[BlackElo "2191"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,85,41,73,66,78,68,81,66,117,81,126,55,54,56,61,56,60,41,54,0,0,0,0,-120,72,66,95,83,142,139,139,64,64,0,151,123,126,127,111,94,95,70,58,37,167,162,217,197,247,203,212,156,243,130,121,113,110,125,120,102,368,372,555,563,753,717]} 1. c4 Nf6 2. Nc3 g6 3. e4 d6 4. d4 Bg7 5. f3 O-O 6. Bg5 c5 7. d5 e6 8. Qd2 exd5 9. cxd5 a6 10. a4 Nbd7 11. Nh3 Re8 12. Be2 {A65: Modern Benoni: 6 e4} (12. Nf2 Qe7 13. Be2 Qf8 14. O-O Rb8 15. Rab1 Kh8 16. Be3 Ng8 17. b4 b6 18. Nd3 Ra8 19. bxc5 bxc5 {1-0 (46) Livaic,L (2468)-Papp,G (2614) Budapest 2018}) 12... Qa5 13. O-O Qb4 14. Nf2 {White is better.} Ne5 (14... c4 $14) 15. Qc1 $146 ({Predecessor:} 15. Be3 Nc4 16. Bxc4 Qxc4 17. Rfc1 Qb4 18. a5 Nd7 19. Nd3 Bxc3 20. bxc3 Qc4 21. Nb2 Qb3 22. c4 b5 23. Rc3 {1-0 (23) Iaaeueaa,A-Iaiaaa,A corr 1997}) 15... Bd7 16. Bxf6 (16. Ra3 $16) 16... Bxf6 $14 17. f4 Nc4 {[#]} 18. e5 $1 {[%mdl 512]} Nxe5 $1 (18... dxe5 19. Nce4) 19. fxe5 Bxe5 20. Bf3 ({Better is} 20. Nd3 $14 Qd4+ 21. Kh1) 20... Re7 $11 21. Ra2 Rae8 22. Ne2 (22. g3 $11 {keeps the balance.}) 22... Bf5 $2 ({Of course not} 22... Bxa4 $6 23. Nd3 $11) (22... Qb3 $17 {stays on course.} 23. Ra3 Qxb2 24. Qxb2 Bxb2 {[%mdl 64] Discovered Attack}) 23. g4 $1 $16 {[%cal Rg4f5]} Bd7 24. Nd3 $1 {[%cal Rd3b4]} Qa5 ({Black should play} 24... Qb6) 25. Nxe5 Rxe5 26. Qc3 (26. Qf4 $16) 26... Qd8 $14 27. b4 (27. Ng3 $1 $14) 27... b6 $2 (27... h5 $1 $11 28. Nf4 (28. bxc5 hxg4 29. c6 Bc8 $15) 28... hxg4) 28. bxc5 bxc5 29. Qc4 a5 30. Qf4 f5 {And now ...fxg4 would win.} 31. g5 Qb6 32. Qc4 Bc8 {[#]} ({Black should try} 32... Re3 $14) 33. Nc3 $1 $18 Qd8 (33... Re3 {might work better.}) 34. h4 Re3 35. Re2 Rxe2 36. Nxe2 Qe7 (36... Qb6 $16 {keeps fighting.}) 37. Nf4 (37. Kg2 $18) 37... Qe3+ $16 {[#]} 38. Kg2 $1 Ba6 39. Qxa6 {[%mdl 64] Double Attack} Qxf4 40. Qb5 Re3 $2 {[%mdl 8192]} (40... Kf7 $16) 41. Qxa5 $18 Kf7 (41... Re8 {was worth a try.} 42. Qb5 Kf7 43. Qb7+ Re7) 42. Qd8 Re7 43. Qh8 {Accuracy: White = 55%, Black = 37%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "7.11"]
[White "De Carvalho, Jose Jorge"]
[Black "Roselli Mailhe, Bernardo"]
[Result "1/2-1/2"]
[ECO "B40"]
[WhiteElo "2149"]
[BlackElo "2442"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,55,-32,-18,0,0,15,10,66,68,56,27,29,23,27,0,0,0,0,0,0,0,27,0,101,101,93,60,58,60,46,36,48,0,37,0,46,0]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be3 Bb4 7. Bd3 d5 8. Nxc6 bxc6 9. exd5 cxd5 10. O-O O-O 11. Bd4 Be7 {B45: Sicilian Four Knights} 12. f4 g6 13. Qe2 Rb8 $146 ({Black should try} 13... Nd7 $11) ({Predecessor:} 13... Ne8 14. Nd1 Bf6 15. Be5 Bg7 16. c3 f6 17. Bd4 Nd6 18. Nf2 Re8 19. Qf3 Bb7 20. Ng4 e5 21. fxe5 fxe5 22. Nf6+ Bxf6 23. Qxf6 exd4 {0-1 (23) Smith,S (1793)-Arakhamia Grant,K (2464) Edinburgh 2011}) 14. Qe5 $14 Rb4 15. a3 Rxd4 $1 16. Qxd4 Nd7 {[#] ...Bc5 is the strong threat.} 17. Kh1 Bc5 18. Qa4 Nf6 19. h3 Nh5 20. Ne2 Qh4 21. Ba6 Be3 (21... Nf6 $11 {keeps the balance.}) 22. Rf3 $16 Bb6 23. Raf1 Nf6 24. Ng3 Bd7 25. Bb5 Bc8 26. Ba6 Bd7 27. Bb5 Bc8 $1 28. Ba6 {Accuracy: White = 46%, Black = 44%.} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "7.12"]
[White "Federzoni, Enzo"]
[Black "Rodi, Luis Ernesto"]
[Result "1/2-1/2"]
[ECO "C44"]
[WhiteElo "2138"]
[BlackElo "2341"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,52,33,39,39,27,29,37,34,30,23,34,28,81,38,86,56,87,15,16,15,45,43,48,0,28,25,66,65,62,61,76,68,120,25,43,43,126,77,231,0,113,0,240]} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Bc5 6. Be3 Bb6 7. Qd2 $146 {C47: Scotch Four Knights and Four Knights with 4 g3} (7. Bb5 O-O 8. O-O Re8 9. f3 Ne5 10. Bf2 c6 11. Ba4 d5 12. exd5 Nxd5 13. Nxd5 Qxd5 14. Bb3 Qd6 {1-0 (43) Andreikin,D (2734)-Carlsen,M (2838) chess.com INT 2017}) 7... Ng4 8. Nf5 {aiming for Bxb6.} Nxe3 9. Nxe3 {White is slightly better.} d6 10. O-O-O Be6 11. Ned5 O-O (11... Ba5 $11 {remains equal.}) 12. f4 Bg4 13. Re1 Bd7 14. h3 (14. Nxb6 $16 axb6 15. Kb1) 14... Ba5 $11 15. g4 Nb4 16. Nxb4 $1 Bxb4 17. f5 Qf6 {[#]} 18. e5 $1 {[%mdl 512]} Qh4 (18... dxe5 19. Qxd7) 19. Bg2 Bc6 20. Bxc6 bxc6 21. Re4 $36 {[%mdl 2048] Black is under pressure.} Bc5 {[#]} ({Better is} 21... c5 $14) 22. e6 ({White should try} 22. Na4 $1 $16) 22... fxe6 23. Rxe6 h5 (23... Rfe8 $14) 24. Qe1 Qg5+ $2 {[#]} (24... Qxe1+ $16 {keeps fighting.} 25. Rhxe1 hxg4) 25. Qd2 (25. Kb1 $1 $18 {is the precise move to win.}) 25... Qh4 $1 $16 26. Qe1 (26. Ne4 $16) 26... Qg5+ {Accuracy: White = 47%, Black = 31%.} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "7.13"]
[White "Moura, Eduardo Eugenio Chav"]
[Black "Labussiere, Victor"]
[Result "1/2-1/2"]
[ECO "B21"]
[WhiteElo "2098"]
[BlackElo "2295"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,69,-30,-14,-6,-9,-6,-10,-10,-7,-15,-9,-2,19,28,56,60,50,60,64,57,61,28,34,39,32,39,55,53,44,44,50,25,134,135,131,139,130,138,144,163,160,161,172,174,180,182,183,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 a6 7. O-O Nf6 8. Bf4 {B21: Sicilian: 2 f4 and Morra Gambit} (8. h3 e6 9. Qe2 b5 10. Bb3 Bb7 11. Rd1 Qb8 12. Bf4 Nd7 13. Rd2 Be7 14. Bxd6 Bxd6 15. Rad1 Bf4 16. Rxd7 {0-1 (49) Mosadeghpour,M (2475)-Grigoryan,K (2602) Mashhad 2016}) 8... Bg4 9. h3 Bxf3 10. Qxf3 e6 11. Rfd1 {[#] Strongly threatening e5!} Qb8 12. Be2 Ne5 13. Qg3 Be7 14. Bxe5 $1 ({Avoid the trap} 14. Qxg7 $2 Rg8 $19) 14... dxe5 15. Qxg7 Rg8 16. Qh6 $146 Rg6 17. Qe3 Qa7 18. Qxa7 Rxa7 19. Rac1 {Nb5! is the strong threat.} Ra8 20. Na4 Bd8 21. Nc5 Rb8 22. Rd3 Bb6 {[#]} (22... Rc8 $11 {remains equal.}) 23. Rb3 $1 $36 {[%cal Rb3b6][%mdl 2048] Black is under strong pressure.} Bxc5 24. Rxc5 Nxe4 25. Rxe5 Nd6 26. Bxa6 h6 27. Bd3 Rg5 28. f4 Rg7 29. Rh5 Ra8 30. Ra3 $2 (30. Rxh6 $18 {aiming for Rh8+.} Ke7 31. Kf2) 30... Rxa3 $11 {The position is equal.} 31. bxa3 Rg3 32. Bb5+ Nxb5 33. Rxb5 Rxa3 34. Rxb7 Rxa2 35. Rb8+ {Accuracy: White = 62%, Black = 69%.} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.12"]
[Round "7.14"]
[White "Rangel, Daniel"]
[Black "Zuriel, Marisa"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2258"]
[BlackElo "2178"]
[Annotator "TA"]
[PlyCount "107"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,107,44,40,33,55,56,70,54,70,35,77,65,81,52,75,28,72,0,0,0,-8,-35,-27,-36,-35,-23,-3,-25,-16,-14,13,-54,-51,-63,-59,-56,-37,-71,-38,-54,-22,-178,168,147,129,0,0,-8,22,14,24,45,41,40,119,119,116,97,109,102,105,108,252,247,232,242,198,268,258,262,249,233,370,369,426,420,477,474,551,547,808,799,668,708,1083,1039,957,708,1039,1045]} 1. Nf3 d6 2. d4 Nf6 3. g3 g6 4. b3 Nbd7 5. Bb2 Bg7 6. Bg2 c5 7. O-O O-O 8. c4 cxd4 9. Nxd4 a6 10. Nc3 Nc5 11. b4 {E65: King's Indian: Fianchetto: 6...c5 7 0-0 without d5 by White} (11. Qd2 Rb8 12. Rfd1 Ne6 13. Nc2 b5 14. Nb4 Bb7 15. cxb5 axb5 16. Rac1 Bxg2 17. Kxg2 Qb6 18. Ncd5 Nxd5 19. Nxd5 Qb7 20. Rc6 Bxb2 21. Rb6 Qxd5+ {½-½ (21) Andreikin,D (2712)-Sachdev,T (2402) chess.com INT 2018}) 11... Ncd7 12. Rc1 $146 ({Predecessor:} 12. Nc2 Qc7 13. Ne3 Ne5 14. Qb3 Be6 15. Ncd5 Bxd5 16. cxd5 Rac8 17. Bh3 Rcd8 18. Rac1 Qb6 19. Nc4 Nxc4 20. Qxc4 a5 21. bxa5 Qxb2 22. Rb1 Qa3 23. Rxb7 {0-1 (23) Purushoth,G (1457)-Madhumida,S Dindigul 2014}) 12... Nb6 13. Nb1 {White is slightly better.} Bh6 14. Nd2 d5 15. c5 Nbd7 16. N4f3 Qc7 17. Rc2 Re8 18. Ne1 ({White should try} 18. Re1 $16) 18... e5 19. e4 dxe4 $1 20. Nxe4 Nxe4 21. Bxe4 Nf6 $36 {[%mdl 2048] Black fights for an advantage.} 22. Bg2 Bg4 23. Qa1 Rad8 24. Nf3 {[%cal Rb2e5]} Nd7 25. Nh4 (25. Re1 $11) 25... Nb8 $15 26. h3 Bd7 27. Nf3 {[%cal Rb2e5]} Nc6 28. Re2 {[%cal Rf3e5]} f6 (28... e4 $5 {[%cal Re4f3]} 29. Nd2 f5 $17) 29. a3 Bf5 {aiming for ...Bd3.} 30. Ne1 $2 (30. Bc1 $11 {and White stays safe.} Bg7 31. Rd2) 30... Nd4 $4 {[%mdl 8192]} (30... Be6 $1 $19 {avoids the disaster. And now ...Bc4 would win.} 31. Re4 Qf7) 31. Bxd4 $1 $18 Rxd4 {[#]} 32. g4 (32. Qxd4 $1 $16 {[%mdl 512]} exd4 33. Rxe8+ Bf8 34. Nf3) 32... Be6 $11 33. Nf3 Rdd8 {[#]} 34. g5 $1 {[%cal Rg5h6][%mdl 512]} Bg7 {...Bc4 is the strong threat.} (34... fxg5 35. Rfe1) 35. gxf6 Bxf6 {Hoping for ...Bc4.} 36. Rfe1 Bg7 (36... Kg7 $14 37. Nxe5 Bf5) 37. Nxe5 $16 Bc4 38. Re4 Bd5 39. R4e3 {Strongly threatening Bxd5+.} Bxg2 40. Kxg2 {Threatens to win with Qa2+.} h6 (40... Bf6 $16 {is a better defense.}) 41. Qa2+ $18 Kh7 {[%cal Re8e5] [#]} 42. Qf7 $1 {[%cal Rf7c7]} Qxf7 43. Nxf7 {[%mdl 64] Discovered Attack} Rxe3 44. Rxe3 {[%mdl 4096] Endgame KRB-KRN} Rd7 45. Nd6 Bf8 (45... Bb2 {was called for.} 46. Nc4 Bf6) 46. Nc4 Bg7 47. Re6 Rc7 48. Rb6 {White is clearly winning.} h5 49. Na5 Kh6 50. Rxb7 Rc8 51. Nc4 Rf8 52. Nd6 Bd4 53. Rf7 Rd8 54. Rf4 {Accuracy: White = 61%, Black = 38%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.12"]
[Round "7.15"]
[White "Gauche, Charles"]
[Black "Pirola, Claudionor Alcides L"]
[Result "1-0"]
[ECO "D54"]
[WhiteElo "2248"]
[BlackElo "2106"]
[Annotator "TA"]
[PlyCount "130"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,130,44,70,53,57,67,62,57,82,79,74,74,95,76,69,61,111,106,102,86,106,67,90,115,106,108,112,100,114,87,112,108,100,113,115,106,206,207,207,207,207,202,193,0,0,-8,115,111,100,93,114,24,20,15,117,118,121,116,138,129,132,105,108,8,99,103,74,10,11,8,8,8,11,11,11,11,11,11,12,11,12,12,12,11,411,8,11,0,254,8,22,22,42,38,46,50,151,39,227,151,151,137,137,137,137,137,137,108,147]} 1. c4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Rc1 b6 7. cxd5 exd5 8. Bd3 Bb7 9. Nge2 Nbd7 10. O-O h6 11. Bh4 Ne4 12. Bxe7 Qxe7 13. Nxe4 {D35: Queen's Gambit Declined: Exchange Variation} dxe4 14. Bb5 Nf6 (14... Rac8 15. Qa4 Nf6 16. Qxa7 Bd5 17. Nf4 Rfd8 18. a3 Bb3 19. Rc3 g5 20. Ng6 fxg6 21. Rxb3 {1-0 (49) Weindl,A (2351)-Vidonyak,N (2230) Germany 2003}) 15. Nf4 {White is slightly better.} c5 $146 ({Predecessor:} 15... Rfd8 16. Qa4 Rd6 17. Bc4 Kh8 18. Rc2 c6 19. Qb3 Nd5 20. Nh5 Qg5 {1-0 (40) Samigullina,D (2102)-Dudas,S (1796) Herceg Novi 2008}) 16. dxc5 bxc5 17. Qc2 a6 18. Ba4 Rac8 19. Rfd1 Qe5 20. Qb3 Qc7 21. Qc4 g5 22. Ne2 Ng4 23. Ng3 Ne5 24. Qc3 f5 25. Bb3+ $1 c4 26. Rd4 $1 cxb3 27. Qxc7 Rxc7 28. Rxc7 bxa2 29. Rc1 Rc8 (29... Bc8 $16) 30. Rxc8+ $18 Bxc8 {[%mdl 4096] Endgame KRN-KBN} 31. Ra4 Be6 32. Ne2 Nd3 33. Nc3 $2 {[#]} (33. Rxa6 $18 Bc4 34. Ra5) 33... Nb4 $1 $11 {[%mdl 512]} 34. f3 (34. Rxb4 a1=Q+) 34... Kf7 (34... Bb3 $11 35. Ra5 exf3) 35. fxe4 $16 fxe4 36. Kf2 $1 Ke7 37. Kg3 (37. Ke2 $16) 37... Kf7 38. h4 ({Don't blunder} 38. Nxe4 $2 Nc2 $19) 38... gxh4+ (38... Bb3 $11 39. Ra5 Kg6) 39. Kxh4 Kg6 40. Ra5 ({Weaker is} 40. Nxe4 Bb3 $15) 40... Kg7 41. Kg3 Kf7 42. Kf4 ({And not} 42. Nxe4 Nc2 $17) 42... Ke7 43. Ra4 (43. Kxe4 $16 Kd6 44. Kf4) 43... Nd3+ (43... Bb3 $1 $11 44. Ra5 Kd8) 44. Kg3 Nb4 45. Nxa2 ({White should play} 45. Kh4 $16) 45... Nxa2 $11 46. Rxa6 Nb4 47. Ra7+ Kf6 48. Rh7 Kg6 49. Rb7 Nd5 50. Kf2 h5 51. b4 Kf6 52. b5 Ke5 53. Rh7 Nf6 $2 {[%mdl 8192]} (53... Kd6 $11 {and Black stays safe.}) 54. Rc7 $2 (54. b6 $1 $18) 54... Nd5 55. Rh7 $2 (55. Rg7 $11) 55... Nf6 $18 56. Rh8 $2 (56. b6 $1 $18 {[%cal Rb6b7]} Bc8 57. b7 $1 {[%mdl 512]} Bxb7 58. Rxb7) 56... Ng4+ 57. Ke2 Kd6 58. Rxh5 Ne5 {aiming for ...Bg4+.} 59. Rh6 {And now b6 would win.} Nd7 (59... Ng4 $14 60. Rh4 Kc7) 60. Kd2 (60. Kd1 $16) 60... Ke5 $2 (60... Ne5 $1 $14) 61. Kc3 Nf6 62. Kb4 {Threatens to win with Kc5.} Nd5+ 63. Kc5 Nxe3 {[#]} 64. b6 $1 {[%cal Rb6b7] Threatening mate with b7.} Bd5 {intending ...Nf5.} 65. Rh5+ {[%mdl 1024] White has strong compensation.} Ke6 {Accuracy: White = 48%, Black = 38%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.11"]
[Round "7.16"]
[White "Donoso Diaz, Sebastian"]
[Black "Da Silva Junior, Sediney Mari"]
[Result "*"]
[ECO "A80"]
[WhiteElo "2234"]
[BlackElo "2011"]
[Annotator "TA"]
[PlyCount "35"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,35,56,98,81,83,58,86,82,62,62,108,91,130,129,192,191,186,15,73,-33,0,0,0,0,137,148,231,206]} 1. d4 f5 2. Bg5 g6 3. Nc3 Bg7 4. h4 Nf6 (4... Nc6 5. Nf3 h6 6. Bf4 Nf6 7. d5 e5 8. Bxe5 Nxe5 9. Nxe5 Ne4 10. Nxe4 fxe4 11. Nxg6 Bxb2 12. e3 {0-1 (35) Wagner,D (2575)-Vallejo Pons,F (2684) Berlin 2015}) 5. h5 d5 6. h6 {A80: Dutch Defence: Unusual White second moves} Bf8 7. e3 c6 8. Qf3 $146 {White is better.} ({Predecessor:} 8. Bf4 Qb6 9. Rb1 Nbd7 10. Be2 Ne4 11. Nxe4 fxe4 {1-0 (52) Koch,C (2201)-Aalderink,G (2100) LSS email 2010}) 8... Qa5 {[#] Strongly threatening ...Ne4.} 9. Bd3 $1 Na6 10. Qf4 Qc7 11. Qh4 Ne4 (11... Nb4 $16 {was worth a try.}) 12. Bxe4 $18 dxe4 13. d5 $2 {[#]} ({Better is} 13. f3 $18) 13... cxd5 (13... Nb4 $11 {keeps the balance.} 14. O-O-O Nxd5 15. Nxd5 cxd5) 14. Nxd5 (14. O-O-O $16) 14... Qa5+ (14... Qc4 $5 {[%cal Rc4d5]} 15. O-O-O Be6 $15) 15. Nc3 Nb4 16. Rc1 Qd8 (16... Nxa2 $11 {remains equal.} 17. Ra1 Be6) 17. Nge2 Bd7 (17... Qb6 $16 {might work better.} 18. Qh2 Nc6) 18. O-O {Accuracy: White = 48%, Black = 20%.} *

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.12"]
[Round "7.16"]
[White "Donoso Diaz, Sebastian"]
[Black "Da Silva Junior, Sediney Mari"]
[Result "1-0"]
[ECO "A80"]
[WhiteElo "2234"]
[BlackElo "2011"]
[Annotator "TA"]
[PlyCount "115"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,115,80,70,72,74,68,68,72,104,103,106,79,129,138,181,183,209,32,36,-26,0,0,0,0,0,0,65,77,45,79,131,126,122,97,150,45,39,0,128,-54,-66,-224,-216,-218,-238,-236,-239,-216,-206,-236,-208,-241,-230,-216,-218,-220,-227,-213,-219,-218,-215,-202,-209,-200,-177,-173,-95,-83,-47,-119,-86,-96,-93,-133,-134,-239,-269,-272,-260,-217,-93,-120,-91,-176,-142,-318,0,0,0,0,0,0,0,0,0,0,0,0,2682,1729,12844,12844,12845,12845,12847,12847,12848,12847]} 1. d4 f5 2. Bg5 g6 3. Nc3 Bg7 4. h4 Nf6 (4... Nc6 5. Nf3 h6 6. Bf4 Nf6 7. d5 e5 8. Bxe5 Nxe5 9. Nxe5 Ne4 10. Nxe4 fxe4 11. Nxg6 Bxb2 12. e3 {0-1 (35) Wagner,D (2575)-Vallejo Pons,F (2684) Berlin 2015}) 5. h5 d5 6. h6 {A80: Dutch Defence: Unusual White second moves} Bf8 7. e3 c6 8. Qf3 $146 {White is slightly better.} ({Predecessor:} 8. Bf4 Qb6 9. Rb1 Nbd7 10. Be2 Ne4 11. Nxe4 fxe4 {1-0 (52) Koch,C (2201)-Aalderink,G (2100) LSS email 2010}) 8... Qa5 9. Bd3 $1 Na6 10. Qf4 Qc7 11. Qh4 Ne4 12. Bxe4 dxe4 13. d5 $2 (13. f3 $18) 13... cxd5 14. Nxd5 (14. O-O-O $14) 14... Qa5+ (14... Qc4 $5 {[%cal Rc4d5]} 15. O-O-O Be6 $15) 15. Nc3 Nb4 16. Rc1 Be6 17. Nge2 Bxa2 (17... Nxa2 $11 18. Ra1 Qb4) 18. O-O $1 $14 Bc4 19. Rfd1 Rd8 (19... Bxe2 $142 20. Nxe2 Nc6) 20. Rxd8+ $16 Qxd8 21. Nd4 Qb6 ({Black should play} 21... Rg8) 22. Qf4 ({White should try} 22. Qh2 $16 Qd6 23. Bf4) 22... Qd6 $1 $14 23. Qh4 e5 (23... Qb6 $1 $11) 24. Ndb5 $2 ({White has to play} 24. Rd1 $1 $16 {Threatens to win with Nxf5!} exd4 25. Rxd4) 24... Bxb5 $1 $15 25. Bf6 $2 (25. Nxb5 $15 Qd7 26. Nc3 (26. Bf6 Rg8 $17)) 25... Be7 $1 $19 {[%cal Re7f6]} ({And not} 25... Qd2 26. Rd1 $14) 26. Bxe7 Qxe7 27. Qxe7+ Kxe7 28. Nxb5 {[%mdl 4096] Endgame KRN-KRN} a6 29. Na3 Rd8 30. Kf1 Kf6 31. Ke2 g5 32. f3 exf3+ 33. gxf3 Kg6 34. Nc4 Nc6 ({Resist} 34... Kxh6 35. Nxe5 Re8 36. Nc4 $17) 35. Rh1 b5 36. Nd2 Ne7 37. c4 {[#]} b4 ({Better is} 37... Rd6 $1 $19 38. e4 Rc6 39. cxb5 axb5) 38. Ra1 $17 Ra8 39. c5 (39. Ra5 $15) 39... Nc6 40. Nc4 {With the idea Rd1.} Kxh6 41. Rd1 {[#] Hoping for Rd6+.} Rd8 $1 {[%cal Rd8d1] ...Rxd1 is the strong threat.} 42. Rxd8 (42. Ra1 $17 {was necessary.} a5 43. Nxa5 Nxa5 44. Rxa5) 42... Nxd8 $19 43. Nxe5 $17 {KN-KN} Ne6 44. c6 Kh5 (44... Kg7 $19 45. Kf2 Kf6) 45. b3 Kh4 46. Kf2 (46. Nd3 $17 {was called for.} a5 47. Nc5 {[%mdl 64] Promotion}) 46... Kh3 47. Nf7 $2 (47. Nd3 $17 {was the only defense.}) 47... Kh4 $2 (47... g4 $19 {Strongly threatening ...Kh2.} 48. fxg4 fxg4) 48. Nd6 Nc7 $1 49. Nxf5+ Kh5 50. Ne7 {Black must now prevent e4.} a5 {aiming for ...a4!} 51. Ke2 g4 52. fxg4+ $1 Kxg4 53. e4 {next Nd5 is good for White.} Ne8 $2 {[%mdl 8192]} (53... Ne6 $11) 54. Nd5 $18 {White is clearly winning.} h5 {[#]} 55. Nf6+ $1 {[%mdl 576] Deflection, Promotion} Nxf6 56. c7 Nxe4 57. c8=Q+ Kg3 58. Ke3 {Accuracy: White = 46%, Black = 50%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.12"]
[Round "8.1"]
[White "Diamant, Andre"]
[Black "Martinez Alcantara, Jose Eduardo"]
[Result "1/2-1/2"]
[ECO "A39"]
[WhiteElo "2533"]
[BlackElo "2592"]
[Annotator "NA RC"]
[PlyCount "13"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

{[%evp 8,13,28,30,35,13,15,16]} 1. c4 {[%emt 0:00:00]} c5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:00]} Nc6 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 4. g3 {[%emt 0:01:17]} g6 {[%emt 0:00:54]} 5. Bg2 {[%emt 0:00:10]} Bg7 {[%emt 0:00:16]} 6. O-O {[%emt 0:00:32]} O-O $11 {[%emt 0:00:14]} 7. d4 {[%emt 0:00:18]} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.12"]
[Round "8.2"]
[White "Supi, Luis Paulo"]
[Black "Cruz, Cristhian"]
[Result "1/2-1/2"]
[ECO "E12"]
[WhiteElo "2578"]
[BlackElo "2562"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,59,41,47,47,33,43,60,69,62,45,53,35,67,27,22,20,59,59,59,59,52,62,64,64,56,0,0,0,0,-10,-8,-10,-11,-15,0,0,0,0,0,0,135,138,184,177,147,25]} 1. c4 e6 2. Nf3 Nf6 3. d4 b6 4. a3 c5 5. d5 Ba6 6. Qc2 exd5 7. cxd5 g6 8. Nc3 Bg7 9. h4 {E12: Queen's Indian: Unusual White 4th moves, 4 a3, 4 Nc3 Bb7 5 a3 and 4 Nc3 Bb7} d6 10. Bf4 Qe7 (10... h6 11. g3 Qe7 12. Qa4+ b5 13. Nxb5 O-O 14. Nxd6 Nxd5 15. O-O-O Nxf4 16. gxf4 Bb7 17. h5 Qf6 18. Rd2 Bc6 19. Qc4 Nd7 20. hxg6 Nb6 21. gxf7+ Kh8 22. Qc2 Qxf4 23. Nh4 {1-0 (23) Fedoseev,V (2706)-Bologan,V (2610) Poikovsky 2018}) 11. h5 {aiming for h6.White is slightly better.} O-O $1 12. hxg6 hxg6 13. Bg5 Re8 14. e3 $146 ({Predecessor:} 14. Qa4 c4 15. e3 Qd7 16. Qb4 {½-½ (29) Dehaybe,A (2097)-Schlenther,M (2447) LSS email 2012}) 14... Bxf1 15. Kxf1 Qb7 16. Bxf6 Bxf6 17. Ne4 Qe7 $1 {[%cal Re7e4]} 18. Nxf6+ Qxf6 19. Ke2 Nd7 20. Rh4 ({White should play} 20. Rh3 $1 $14) 20... Kg7 $1 $11 21. Rah1 Rh8 22. Rxh8 (22. Rf4 {with more complications.} Qe7 23. Qc3+ Ne5 24. Nxe5 dxe5 25. Rd1) 22... Rxh8 23. Rxh8 Kxh8 24. Qc3 Kg8 25. Qxf6 Nxf6 26. Nd2 Nxd5 27. Ne4 Nc7 (27... Kf8 $11 {remains equal.}) 28. Nxd6 $16 {White is clearly better.} Kg7 {[#]} 29. Kd3 $1 Kf6 30. Ke4 {Accuracy: White = 63%, Black = 46%.} (30. Kc4 $16) 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.12"]
[Round "8.3"]
[White "Hernandez Guerrero, Gilberto"]
[Black "Ambartsumova, Karina"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2554"]
[BlackElo "2341"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,81,14,40,30,32,16,18,18,26,21,19,18,29,17,24,28,57,51,82,81,78,77,78,72,101,103,114,103,112,112,114,128,121,107,110,117,130,105,127,109,141,91,275,273,281,220,214,185,222,224,195,225,192,186,188,191,198,214,345,325,580,574,947,695,672,635,635,632,582,507,1054,412,580,568]} 1. e4 c5 2. Nf3 e6 3. b3 a6 4. Bb2 Nc6 5. g3 d6 6. d4 {B40: Sicilian: 2...e6, Unusual lines} cxd4 7. Nxd4 Bd7 8. Bg2 {The position is equal.} Nf6 9. O-O Be7 10. c4 O-O 11. Nc3 Nxd4 12. Qxd4 Bc6 13. a4 $146 ({Predecessor:} 13. Rad1 Re8 14. Rfe1 Qc7 15. Rc1 {1-0 (37) Firouzja,A (2682)-Martinez Alcantara,J (2583) chess.com INT 2019}) 13... a5 14. Rfd1 Qb8 15. Nb5 Rd8 16. Ba3 Ne8 17. Qe3 Bf8 18. Rac1 b6 19. Rd2 e5 20. Qe2 Qb7 21. Rcd1 Bxb5 22. cxb5 Rdc8 23. Rd3 Rc7 24. Bh3 g6 25. f3 d5 $2 (25... Rd8 $16) 26. Bxf8 $18 dxe4 27. fxe4 Kxf8 28. Bd7 Nf6 {[%cal Rc7d7]} 29. Bc6 $1 {[%cal Rc6b7][%mdl 64] [#] Skewer} Rxc6 30. bxc6 Qxc6 31. Rd6 Qc5+ 32. Kg2 Ne8 33. R6d5 Qe7 (33... Qc6 {was necessary.} 34. Rxe5 Nf6) 34. Qb2 f6 $2 (34... Rc8 {keeps fighting.} 35. Rxe5 Qc7) 35. Rd7 Qb4 36. Qe2 Rc8 37. Qe3 {White wants to mate with Qh6+.} Kg8 38. Kh3 Qf8 39. Rb7 Ng7 (39... g5 $142 40. Rdd7 (40. Qxb6 $2 Qh6+ 41. Kg4 f5+ 42. Kxf5 Rc6 $19) 40... Qh6+ 41. Kg2 Rc2+ 42. Rd2 Rc8 43. Rxb6 Kh8) 40. Rxb6 (40. Qh6 $142 {White threatens Rdd7 and mate.} Rb8 {[#]} 41. Qxg7+ $1 {[%mdl 576] Deflection} Qxg7 42. Rxb8+ Qf8 43. Rxf8+ Kxf8 44. Rd6) 40... Rc2 (40... Qf7 {is a better defense.} 41. Rdd6 Ne8) 41. Qd3 {Accuracy: White = 75%, Black = 46%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.12"]
[Round "8.4"]
[White "Aranha Filho, Alvaro Z."]
[Black "Von Buelow, Georg"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2304"]
[BlackElo "2363"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,65,20,16,20,20,20,22,33,31,22,60,66,80,62,93,64,218,219,243,243,245,191,250,175,174,178,228,230,236,220,368,375,484,466,508,472,475,465,681,664,661,658,1008,956,928,910,1104,824,1567,1409,29982,29983,29988,1128,29989,29990,29990,29991]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Nb6 6. e3 {D85: Exchange Grünfeld: Unusual White 7th moves and lines with 7 Nf3} (6. Bf4 Bg7 7. Nf3 c5 8. dxc5 Bxc3+ 9. bxc3 Qxd1+ 10. Rxd1 Na4 11. g3 Nd7 12. c6 bxc6 13. Bg2 Nxc3 {½-½ (30) Ding,L (2805)-Mamedyarov,S (2764) Saint Louis 2019}) 6... Bg7 7. f4 O-O 8. Nf3 {The position is equal.} N8d7 9. e4 c5 10. d5 $1 Nf6 11. a4 $146 ({Predecessor:} 11. Be3 c4 12. h3 Nh5 13. Kf2 Bxc3 14. bxc3 {0-1 (36) Kierzek,M (2196)-Norman,K (2114) Bregenz 2019}) 11... a5 12. Qb3 Nbd7 $2 {[#]} (12... c4 $14 13. Bxc4 Nxc4 14. Qxc4 b6) 13. e5 $1 $18 Ng4 14. h3 Nh6 15. Be3 b6 (15... Nf5 $142) 16. Rd1 Nf5 17. Bf2 Nb8 18. Bc4 Na6 19. g4 Nh6 (19... Nd4 {might work better.} 20. Nxd4 cxd4) 20. Bh4 {Hoping for d6.} Qc7 21. O-O Nb4 22. Nb5 Qb7 23. d6 exd6 (23... e6 $142 24. Be7 Bd7 25. Bxf8 Rxf8) 24. Nxd6 Qc7 {[#]} 25. f5 $1 {[%mdl 512]} gxf5 26. g5 Ng4 27. hxg4 fxg4 28. Ne1 Bxe5 29. Bg3 Nc6 30. Bxf7+ Kg7 31. Bxe5+ Nxe5 {[#]} 32. Qc3 $1 {[%cal Rc3e5]} Qe7 33. Rd5 {Accuracy: White = 92%, Black = 33%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.13"]
[Round "8.5"]
[White "Vazquez, Guillermo"]
[Black "Galego, Luis"]
[Result "1/2-1/2"]
[ECO "B00"]
[WhiteElo "2506"]
[BlackElo "2483"]
[Annotator "TA"]
[PlyCount "115"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,115,60,84,73,85,52,50,61,59,53,56,54,58,61,110,69,120,113,114,102,128,47,56,19,14,21,15,25,16,13,14,4,16,0,24,4,39,6,25,25,23,17,21,19,18,17,17,6,54,17,19,18,18,0,0,0,16,24,24,0,0,0,25,0,9,0,5,2,19,16,18,22,26,22,35,50,45,27,27,23,34,0,0,0,8,8,22,0,0,0,0,0,13,0,0,0,0,0,0,-225,-274,-209,0,0,0,0,0,0]} 1. e4 d6 2. d4 c6 3. Nf3 Nf6 4. Nc3 Bg4 5. h3 Bxf3 (5... Bh5 6. g4 Bg6 7. Bd3 e6 8. g5 Nfd7 9. Be3 Bh5 10. Be2 d5 11. Nd2 Bxe2 12. Nxe2 a5 13. c3 a4 14. h4 {1-0 (32) Zhigalko,S (2671)-Zhang,Z (2645) Doha 2016}) 6. Qxf3 {B07: Pirc Defence: Miscellaneous Systems} e6 7. Bd3 d5 8. O-O {White is slightly better.} Be7 9. e5 Nfd7 10. Qg3 g6 11. Ne2 a5 $146 ({Predecessor:} 11... c5 12. c3 Nc6 13. Be3 c4 14. Bc2 b5 15. Nf4 {0-1 (56) Morgunov,M (2312)-Stanec,N (2497) Vienna 2019}) 12. a4 Na6 (12... c5 $14) 13. c3 $16 Nc7 14. Bd2 b5 15. f4 (15. Rfb1 $16) 15... Nb6 $14 16. b3 bxa4 17. bxa4 Nc4 18. Bc1 Rb8 19. Qf3 Nb2 20. Bc2 Nc4 21. g3 Kd7 22. Kg2 Qf8 23. Bd3 Nb2 24. Bxb2 Rxb2 25. Rfb1 Rxb1 26. Rxb1 Qa8 27. Nc1 Rb8 28. Nb3 h5 29. g4 hxg4 30. hxg4 Rh8 31. Nd2 Rb8 32. Qf1 Rb7 33. Nb3 Rb8 34. Nd2 Rb7 35. Qd1 Rb8 36. Rb3 Qa7 37. Nf3 Na8 38. f5 gxf5 39. gxf5 Rxb3 40. Qxb3 Qb6 41. Qa2 exf5 42. Bxf5+ Ke8 43. Kg3 {[#] Strongly threatening Qh2.} Nc7 44. Qh2 c5 45. Qh5 cxd4 46. cxd4 Ne6 47. Bd3 {Bb5+ is the strong threat.} Nc7 ({Wrong is} 47... Nxd4 $2 48. Nxd4 Kd8 49. Nf3 $18) 48. Qg4 Qh6 49. Qc8+ Bd8 50. Bf5 Qc6 51. Ng5 {And now Kg2 would win.} Qc3+ 52. Kg4 Qxd4+ 53. Kh5 {White wants to mate with Qd7+.} Qxa4 54. e6 $2 (54. Nxf7 $11 Qh4+ 55. Kg6) 54... fxe6 $19 55. Bxe6 Nxe6 $2 ({Black should try} 55... Qc6 $19 56. Bg4 d4) 56. Qxe6+ $11 {[%mdl 64] [#] Double Attack. The position is equal.} ({Not} 56. Nxe6 $2 Qd7 $19) 56... Be7 57. Qc8+ Bd8 {Hoping for ...Qd7.} 58. Qe6+ {[%mdl 64] Double Attack. Accuracy: White = 42%, Black = 61%.} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.12"]
[Round "8.6"]
[White "Alonso, Salvador"]
[Black "Rangel, Daniel"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "2481"]
[BlackElo "2258"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,55,31,31,49,39,58,24,50,36,79,66,71,77,80,67,109,108,83,86,157,157,168,158,154,136,116,27,52,8,20,11,158,150,317,310,576,576,963,661,957,931,29997,-10]} 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. c3 Bd6 7. Bd3 O-O 8. Qc2 h5 {B15: Caro-Kann: 3 Nc3: 3...g6 and 3...dxe4 4 Nxe4 Nf6 5 Nxf6+ exf6} 9. Ne2 Re8 10. O-O (10. Be3 Nd7 11. Ng3 Bf4 12. O-O-O Bxe3+ 13. fxe3 Rxe3 14. Rde1 Rxe1+ 15. Rxe1 Nf8 16. Nxh5 {½-½ (36) Mamedov,R (2650)-Cheparinov,I (2667) Hengshui 2019}) 10... Qc7 {White has an edge.} 11. h3 h4 12. Bd2 Nd7 13. Rae1 Nf8 {[#]} 14. c4 $146 ({Predecessor:} 14. Kh1 Bd7 15. Ng1 Rad8 16. Nf3 {½-½ (80) Nasuta,G (2520)-Hirneise,T (2472) Legnica 2018}) 14... c5 15. dxc5 Bxc5 16. b4 Be7 (16... Bd6 $142) 17. Nf4 $16 Be6 {[#]} 18. c5 $1 a5 19. Nxe6 (19. bxa5 Bxc5 20. Kh1 Rac8 $11) 19... Nxe6 20. Qc4 ({But not} 20. bxa5 $6 Bxc5 21. Re4 Rad8 $11) ({White should try} 20. a3 $16) 20... Qd7 $1 $11 21. Re3 axb4 22. Bxb4 $40 {[%mdl 128] Black needs to defend precisely.} Rac8 (22... Qd4 $11 {keeps the balance.}) 23. Bf5 $16 {[%cal Re3e6] [#] Black must now prevent Rxe6.} ({Much worse is} 23. Qxh4 $6 f5 $11) 23... Bxc5 $2 (23... Bf8 $16) 24. Bxc5 $18 Qc6 $2 (24... b6 {keeps fighting.} 25. Bxe6 (25. Qxh4 Rxc5 26. Qh7+ Kf8 $18) 25... Rxe6) 25. Qxh4 {[%csl Gf5][%cal Rh4h7]} Qxc5 26. Qh7+ Kf8 27. Rd1 {Intending Qh8+ and mate.} Rc7 28. Qh8+ {[%mdl 32768] Accuracy: White = 63%, Black = 28%. . Loss on time!?} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.13"]
[Round "8.7"]
[White "Perdomo, Leandro"]
[Black "Gauche, Charles"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2474"]
[BlackElo "2248"]
[Annotator "TA"]
[PlyCount "97"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,97,49,55,44,60,41,42,18,36,20,45,29,57,62,80,82,91,30,83,71,74,87,100,95,92,83,119,91,103,80,107,108,138,87,92,100,104,98,124,116,121,58,132,131,144,129,137,114,134,128,170,160,241,159,137,136,146,145,145,159,183,177,170,164,177,167,172,160,187,175,182,174,195,189,189,127,318,318,316,316,554,710,712,702,683,682,666,680,2302,2439]} 1. d4 d5 2. Nf3 Bf5 3. c4 dxc4 (3... e6 4. Nc3 Nc6 5. cxd5 exd5 6. Bf4 Bd6 7. Bg3 Nf6 8. e3 Ne7 9. Bh4 Ne4 10. Bd3 c6 11. Qc2 Qa5 12. Bxe7 Bxe7 13. O-O Nxc3 14. Bxf5 {0-1 (40) Kramnik,V (2753)-Nepomniachtchi,I (2774) Amsterdam 2019}) 4. e3 e6 5. Bxc4 c6 6. O-O {D06: Queen's Gambit: Symmetrical and Baltic Defences} Be7 7. Qe2 Nf6 8. Nbd2 {White is slightly better.} Ne4 9. Ne5 $146 {Threatens to win with Nxf7!} ({Predecessor:} 9. Nxe4 Bxe4 10. Nd2 Bg6 11. Nb3 {1-0 (33) Rorato,G (2062)-Bonan,Y (1872) Venice 2010}) 9... O-O 10. Ndf3 Bd6 11. Bd3 $36 {[%mdl 2048] White has some pressure.} f6 12. Nc4 Bc7 13. Ncd2 (13. Nh4 $16) 13... Nd6 (13... Nxd2 $11 14. Bxd2 Re8) 14. e4 $16 Bg4 15. h3 Bxf3 16. Nxf3 Nf7 17. Rd1 Qe7 18. Be3 Nd7 19. Rac1 Nb6 20. Qc2 Rfc8 21. Re1 (21. a4 $142) 21... Nd7 22. Bc4 Nf8 23. Qb3 Bb6 24. Bd2 Re8 25. d5 (25. Bb4 $16 Qd7 26. e5) 25... Nd6 (25... Ng6 $14) 26. dxc6 Nxc4 27. Rxc4 bxc6 28. Rxc6 Rac8 29. Rec1 Rb8 {aiming for ...Bxf2+.} 30. Qc4 Kh8 (30... Qf7 $16 {was necessary.} 31. a4 e5) 31. b3 Ng6 32. Qe2 Qa3 33. R1c2 e5 34. g3 Rbd8 35. h4 Ne7 36. R6c4 Qd6 37. Kg2 Qe6 38. Be3 h6 39. Bxb6 axb6 40. a4 Rd6 41. h5 Nc6 42. Rd2 (42. Qe3 $18) 42... Na5 $2 (42... Rxd2 $16 43. Qxd2 Na5) 43. Rxd6 $18 Qxd6 44. Rc3 Nc6 $2 (44... Qb4 45. Qe3 b5) 45. Qb5 $1 {[%csl LRb6,LRc6][%mdl 64] [#] Double Attack. White is clearly winning.} Re6 46. Nh4 Kh7 47. Ng6 f5 48. Qd5 fxe4 {[#]} 49. Qxe6 $1 {[%mdl 512] Accuracy: White = 57%, Black = 43%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.12"]
[Round "8.8"]
[White "Limp, Eduardo Thelio"]
[Black "Donoso Diaz, Sebastian"]
[Result "1-0"]
[ECO "D25"]
[WhiteElo "2356"]
[BlackElo "2234"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,51,32,37,27,24,30,27,16,31,17,25,18,15,0,27,29,39,0,0,0,0,0,0,0,9,0,4,-23,0,0,0,0,6,0,215,218,220,221,200,194,370,393,750,745]} 1. d4 d5 2. Nf3 Nf6 3. c4 dxc4 4. e3 b5 5. a4 b4 6. Bxc4 {D25: Queen's Gambit Accepted: 4 e3: sidelines and 4...Bg4} e6 7. O-O (7. a5 a6 8. Nbd2 Bb7 9. O-O c5 10. Nb3 Nbd7 11. dxc5 Nxc5 12. Nxc5 Bxc5 {1-0 (45) Bluebaum,M (2631)-Anand,V (2776) Karlsruhe/Baden-Baden 2018}) 7... Be7 8. Nbd2 {White has an edge.} O-O 9. b3 Bb7 10. Bb2 c5 11. dxc5 Bxc5 $146 ({Predecessor:} 11... Nbd7 12. c6 Bxc6 {½-½ (29) Smith,A (2513)-Hillarp Persson,T (2527) Uppsala 2016}) 12. Rc1 Qe7 13. Qc2 {aiming for Bxf6.} Nbd7 {[%cal Bb8d7,Bd7b6,Bb6d5,Bd5c3][%mdl 32]} 14. Qb1 Rac8 15. Qa1 Nb6 16. Be2 Rfd8 17. Rfd1 Nbd5 18. Nd4 Nc3 19. Bxc3 bxc3 20. Rxc3 Nd5 21. Rc4 Nxe3 $2 (21... Nb6 $11 {and Black is okay.}) 22. fxe3 $18 Qg5 {[%csl Gb7][%cal Rg5g2]} 23. N2f3 Qxe3+ 24. Kh1 {And now Rxc5! would win.} e5 $2 {[#]} (24... Bd6 25. Rxc8 Rxc8) 25. Rxc5 $1 Rxc5 $2 {[#]} (25... Bxf3 26. Rxc8 (26. gxf3 Rxc5 27. Nc2 Qg5 $11) (26. Nxf3 Rxd1+ 27. Qxd1 Qxc5 $14) 26... Bxg2+ 27. Kxg2 Rxc8) 26. Nc2 $1 {[%mdl 512] Accuracy: White = 39%, Black = 50%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.12"]
[Round "8.9"]
[White "Di Berardino, Diego Rafael"]
[Black "Terao, Juliana Sayumi"]
[Result "1-0"]
[ECO "A13"]
[WhiteElo "2489"]
[BlackElo "2225"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,75,37,27,36,40,65,34,35,25,50,44,47,52,196,200,192,193,197,191,197,195,189,197,185,190,201,202,202,201,203,210,225,202,200,206,225,227,217,206,225,235,254,245,245,237,288,214,290,279,286,280,325,314,370,361,355,311,320,304]} 1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Be7 5. d4 O-O 6. O-O c6 7. Qc2 b6 8. Rd1 Bb7 9. b3 Nbd7 10. Nc3 Bd6 {E08: Closed Catalan: Main Line: 7 Qc2} (10... Ba6 11. e4 dxc4 12. e5 Nd5 13. bxc4 Bxc4 14. Ne4 b5 15. Neg5 g6 16. h4 Qe8 17. h5 h6 18. Ne4 {1-0 (44) Abasov,N (2632)-Piorun,K (2660) Khanty-Mansiysk 2019}) 11. e4 $146 ({Predecessor:} 11. Bb2 Qe7 12. e4 Nxe4 13. Nxe4 dxe4 14. Qxe4 Nf6 {1-0 (64) Todorovic,V (2087)-Petkovic,S (2119) Belgrade 2013}) 11... dxe4 12. Nxe4 Nxe4 {White is slightly better.} 13. Qxe4 Nf6 14. Qc2 Qe7 15. Bb2 c5 (15... Qc7 $14) 16. dxc5 $18 {[%mdl 64] [#] Discovered Attack} Bxc5 17. Ng5 {And now Bxf6 would win.} e5 18. Bxb7 Qxb7 19. Bxe5 h6 20. Bxf6 $1 {[%csl Gg5][%cal Rc2h7]} hxg5 21. Bxg5 Qf3 22. Rd2 Rae8 23. Bf4 Re6 {[#]} 24. Qd1 $1 {[%cal Rd1f3]} Qe4 25. Bd6 Bxd6 26. Rxd6 Rfe8 27. Rxe6 Rxe6 {[%mdl 4096] Endgame KQR-KQR} 28. Qd2 Kh7 29. Rd1 g6 30. Qd3 Qe5 31. Kg2 Re7 32. Qd4 Qe6 33. h4 Qf5 34. Qd5 Re5 35. Qf3 Qe6 36. Rd5 Re2 37. a4 Re1 38. h5 {Accuracy: White = 77%, Black = 24%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.12"]
[Round "8.10"]
[White "Molina, Roberto Junio Brito"]
[Black "Alboredo, Julia"]
[Result "1/2-1/2"]
[ECO "A49"]
[WhiteElo "2448"]
[BlackElo "2184"]
[Annotator "TA"]
[PlyCount "84"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,84,56,29,34,35,30,23,58,35,39,24,33,20,54,48,70,71,69,69,112,98,108,108,102,41,60,15,42,34,33,38,36,23,50,24,47,7,15,18,20,6,16,0,49,0,0,0,94,107,94,115,119,64,58,0,0,0,50,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 dxc4 7. Na3 {[%cal Bb1a3,Ba3c4,Bc4e5][%mdl 32]} c3 8. bxc3 c5 9. Bb2 Nc6 10. e3 Qb6 {D77: Fianchetto Grünfeld: 6 0-0: Replies other than 6...c6} 11. Nc4 Qa6 12. Nce5 Nd5 {White has an edge.} 13. Qb3 $146 ({Predecessor:} 13. Nxc6 bxc6 14. Qc2 Rb8 15. Rfb1 Rd8 16. a4 cxd4 17. Nxd4 c5 18. Nb5 Qa5 {0-1 (39) Chilov,A (2268)-Shipov,S (2640) Ano Liosia 2001}) 13... Nb6 14. Nxc6 bxc6 15. Nd2 Na4 16. Ba3 Be6 17. Qc2 Bf5 18. Be4 Bxe4 19. Nxe4 cxd4 20. cxd4 Rfe8 21. f4 ({White should play} 21. Rab1 $16) 21... Nb6 $14 22. Bc1 Nd5 23. Rb1 Reb8 24. Nc5 Qc8 25. Bd2 Qh3 26. Nb3 h5 27. Qxc6 e6 28. Qc2 h4 29. Rf3 Nf6 30. Rbf1 Rb5 31. Be1 (31. gxh4 {keeps more tension.} Qxh4 32. e4 Rab8 33. Be1 Qh5 34. Bc3) 31... hxg3 32. Rxg3 Qh6 (32... Qf5 $11 33. Rg2 Rab8) 33. Qg2 Rab8 34. Bd2 Rc8 {[#]} 35. Rg5 ({Better is} 35. e4 $1 $16 {Strongly threatening f5.} Qh4 36. f5 Qxe4 37. fxg6 Qxg2+ 38. Rxg2) 35... a6 36. Rxb5 (36. Rc5 $14 Rbxc5 37. dxc5 (37. Nxc5 Qh5 $11)) 36... axb5 $11 37. Nc5 $36 {[%mdl 2048] White has good play.} Bf8 38. Rc1 Qh5 {[%cal Rf8c5] The position is equal.} 39. Qg5 Qe2 40. Qg2 Qh5 {[%cal Rf8c5]} 41. Qg5 Qe2 42. Qg2 Qh5 {Accuracy: White = 47%, Black = 50%.} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.12"]
[Round "8.11"]
[White "Martinez, Ayelen"]
[Black "Zambrana, Oswaldo"]
[Result "0-1"]
[ECO "B33"]
[WhiteElo "2139"]
[BlackElo "2445"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,64,24,13,14,9,14,3,9,20,8,0,0,0,0,0,3,-66,-67,-75,-77,-197,-200,-357,-174,-216,-220,-191,-203,-197,-202,-227,-129,-132,-131,-615,-467,-431,-443,-354,-329,-506,-315,-303,-295,-545,-608]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 {[%cal Bb1c3,Bc3d5,Bd5b4][%mdl 32]} e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c4 b4 {B33: Sicilian: Pelikan and Sveshnikov Variations} 12. Nc2 O-O 13. Ncxb4 (13. g3 Bg5 14. Bg2 a5 15. O-O Ne7 16. Nce3 Bxe3 17. Nxe3 Be6 18. b3 Ra7 19. Qd3 {½-½ (52) Nepomniachtchi,I (2776)-Yu,Y (2763) Khanty-Mansiysk 2019}) 13... Nxb4 {The position is equal.} 14. Nxb4 Qb6 15. a3 a5 16. Nd5 Qxb2 17. Be2 Be6 18. h4 $146 (18. Nxf6+ $11 gxf6 19. O-O) ({Predecessor:} 18. O-O Bxd5 19. cxd5 {½-½ (38) Geus,J (2002)-Fuller,W (2250) ICCF email 2009}) 18... Bxd5 $1 $15 19. cxd5 Rfc8 20. Rh3 (20. O-O $17 {was called for.}) 20... Rab8 $19 21. Bd3 $2 (21. Ba6 Rc2 22. Re3) 21... Bd8 (21... Rc3 $142 {White must now prevent ...a4.} 22. Kf1 {[#]} Bxh4 $1 {[%mdl 512]} 23. Rxh4 Rxd3 $1 {[%mdl 512]}) 22. Kf1 Bb6 {[%csl Gb6][%cal Rb2f2]} 23. Rf3 Bd4 24. Rb1 Qxa3 {And now ...Rxb1 would win.} 25. Bb5 Rc3 (25... Qa2 $19 {Hoping for ...Rc2.} 26. Kg1 Rc2) 26. Rxc3 $17 Qxc3 $40 {[%mdl 128] Black has strong attack.} 27. Bd7 $2 {[%mdl 8192]} (27. Ba4 $17 Rxb1 28. Qxb1) 27... Rxb1 28. Qxb1 {Intending Qb8+ and mate.} g6 29. h5 Kg7 ({Don't take} 29... gxh5 30. Qd1 $19) 30. Qd1 (30. Kg1 $142) 30... Qc4+ 31. Kg1 Qa2 32. Qf3 $2 (32. Kh2) 32... a4 {Accuracy: White = 21%, Black = 64%.} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.12"]
[Round "8.12"]
[White "Roselli Mailhe, Bernardo"]
[Black "Guimaraes, Marcelo Cunha"]
[Result "1-0"]
[ECO "A61"]
[WhiteElo "2442"]
[BlackElo "2171"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,65,58,39,55,34,47,34,50,43,61,41,42,39,30,16,68,13,16,0,15,0,39,28,43,43,45,42,41,42,33,31,50,38,72,54,104,102,150,147,147,154,198,193,270,270,327,310,386,372,379,381]} 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bf4 a6 8. a4 Bg7 9. e3 O-O {A61: Modern Benoni: Nf3 without early e4} 10. Be2 (10. h3 Qe7 11. Bd3 Nbd7 12. O-O Ne8 13. e4 Rb8 14. Re1 Nc7 15. Qd2 Ne5 16. Nxe5 Bxe5 17. Bxe5 Qxe5 18. a5 {1-0 (42) Akobian,V (2647)-Ponkratov,P (2613) Riadh 2017}) 10... Ne8 11. O-O Nd7 {White is slightly better.} 12. Re1 Qe7 13. h3 Ne5 14. Nd2 f5 15. Bh2 Nf6 (15... b6 $11) 16. f4 (16. a5 $14) 16... Nf7 $11 17. Nc4 $146 ({Predecessor:} 17. Bf3 Rb8 18. Kh1 {1-0 (47) Chu,W (2406)-Yeoh,L (2528) Changsha 2019}) 17... Bd7 18. a5 Rfe8 (18... Bb5 $5) 19. Ra3 Ne4 20. Nxe4 Qxe4 21. Bd3 $36 {[%mdl 2048] White is more active.} Qe7 22. Nb6 Rad8 23. Rb3 Qf6 24. Qf3 Re7 25. Bg3 Rde8 26. Qf2 h6 27. Bh4 g5 28. fxg5 hxg5 29. Nxd7 Rxd7 (29... Qh6 $142) 30. Bxf5 $18 Rde7 31. Bg3 Ne5 32. Rf1 Kh8 33. Qe2 {Accuracy: White = 65%, Black = 34%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.13"]
[Round "8.13"]
[White "Rodi, Luis Ernesto"]
[Black "Moura, Eduardo Eugenio Chav"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "2341"]
[BlackElo "2098"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,93,14,14,14,14,14,18,16,26,1,14,19,35,14,19,-54,-6,-47,-16,-11,-11,-22,-19,-15,0,-25,-21,-31,-28,-39,-11,-50,-18,-22,0,-28,0,-21,0,10,50,-29,0,0,15,13,29,12,37,0,61,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-9,0,-26,0,-55,0,-34,0,0,0,-62,0,-41,0,-24,0,-44]} 1. e4 d6 2. d4 ({Predecessor:} 2. g3 Nf6 3. Bg2 e5 4. Ne2 Be7 5. Nbc3 c6 6. a4 O-O 7. d4 {1-0 (56) Smolovic,M (2351)-Rabrenovic,V (2380) Cacak 2014}) 2... Nf6 3. Nc3 e5 4. Nge2 Be7 5. g3 c6 $146 (5... O-O 6. Bg2 c6 7. O-O b5 8. a3 Nbd7 9. h3 a5 10. g4 Ba6 11. Ng3 exd4 12. Qxd4 b4 13. Nce2 d5 14. e5 Bxe2 15. Nxe2 Bc5 16. Qf4 Nxe5 17. Qxe5 {0-1 (43) Moiseenko,A (2707)-Caruana,F (2791) Dubai 2014}) 6. a4 {B07: Pirc Defence: Miscellaneous Systems} a5 7. Bg2 O-O 8. O-O Na6 9. h3 Nb4 10. Be3 d5 11. dxe5 Nxe4 12. Qb1 (12. Nxe4 $11 dxe4 13. Bxe4) 12... f5 13. Nd1 Qc7 14. c3 Na6 15. f4 $1 c5 16. Nf2 Be6 17. Qc2 Rad8 18. Kh2 g6 19. Rfd1 Rd7 20. Qb3 Kf7 {Hoping for ...d4.} (20... Qc6 $5 {[%cal Rd5d4]} 21. Qb5 Nc7 $11) 21. Qb5 Rdd8 22. Ng1 Bd7 23. Qe2 Be6 24. Nf3 h6 25. Ne1 ({White should try} 25. Nd2 $14) 25... Kg7 26. Nc2 Kh7 27. Na3 Qc8 28. Qb5 Qc7 29. Qb3 Qc8 (29... Kg7 $11) 30. Qc2 (30. Qb6 $1 $14) 30... Nc7 $11 31. Nb5 Nxb5 32. axb5 b6 33. Nxe4 dxe4 34. Bf1 Rxd1 35. Rxd1 Rd8 36. Re1 Qc7 37. Qf2 Bb3 38. Be2 Qd7 39. Rg1 Qe6 40. Qf1 Qf7 41. Kg2 (41. g4 $11) 41... Qe6 (41... Bc2 $1 $15) 42. Kh2 Qf7 43. Rg2 Qe6 ({Better is} 43... a4 $11) 44. Rg1 $15 Qf7 (44... Bc2 $1 $15) 45. Kg2 Qe6 46. Kf2 Qf7 47. Kg2 {Accuracy: White = 54%, Black = 36%.} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.12"]
[Round "8.14"]
[White "Guimaraes, Diogo Duarte"]
[Black "De Carvalho, Jose Jorge"]
[Result "1-0"]
[ECO "B31"]
[WhiteElo "2322"]
[BlackElo "2149"]
[Annotator "TA"]
[PlyCount "113"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,113,-20,-20,-25,-28,-18,-8,-51,-49,-47,-50,-58,-56,-58,-50,-94,-61,-68,-41,-122,-54,-143,-52,-54,-69,-83,-56,-113,-39,-57,-17,-23,-4,-11,0,0,2,3,0,0,0,-8,17,-39,-4,-5,-5,-5,-5,-6,-5,-11,-15,-53,-18,-135,-123,-127,-125,-119,-41,-45,-3,-14,-21,-25,-7,-12,0,0,0,0,1,0,1,2,2,2,21,21,22,18,20,8,8,10,43,45,52,48,151,151,184,184,262,283,349,344,374,348,401,396,697,763,29972,29970]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 dxc6 5. d4 (5. d3 Qc7 6. h3 e5 7. Be3 f6 8. Qd2 Be6 9. a3 a5 10. Nc3 b6 11. Ng1 Bd6 12. Nge2 Ne7 13. f4 {1-0 (83) Giri,A (2779)-Dubov,D (2700) Paris 2019}) 5... cxd4 6. Qxd4 {B31: Sicilian: 2...Nc6 3 Bb5 g6} Qxd4 7. Nxd4 Bg7 8. c3 {The position is equal.} Nf6 9. f3 e5 10. Nb3 b6 11. Be3 $146 ({Predecessor:} 11. Bg5 Ba6 12. Bxf6 Bxf6 {0-1 (29) Dachrodt,H (1717)-Schubert,J (1866) Hamburg 2018}) 11... Be6 12. N3d2 Nh5 13. g3 f5 14. c4 {[#]} (14. exf5 $15 gxf5 15. Bg5) 14... O-O (14... Nf4 $1 $17 {[%mdl 512]} 15. gxf4 (15. Bxf4 exf4) 15... exf4 16. Bxf4 Bxb2) 15. Nc3 (15. exf5 $15 gxf5 16. Nc3) 15... Rad8 (15... f4 $17 16. gxf4 Nxf4) 16. exf5 $15 gxf5 17. Bg5 Rd4 {Threatens to win with ...h6.} 18. c5 (18. O-O-O $15) 18... bxc5 ({Black should play} 18... b5 $17 19. Nb3 Rd3) 19. Be7 Rf7 20. Bxc5 Rd3 {aiming for ...Rfd7.} 21. O-O-O $1 e4 22. Kc2 Bxc3 23. bxc3 Rd5 24. Bd4 Ra5 25. Ra1 exf3 (25... c5 $5 {[%cal Rc5d4]} 26. Bf2 exf3 $11) 26. Nxf3 (26. Rhe1 $11 Bd5 27. c4 Be4+ 28. Nxe4 fxe4 29. Rxe4) 26... Bd5 27. Rhf1 Be4+ 28. Kc1 c5 $36 {[%mdl 2048] White is under pressure.} 29. Bg1 Rb7 {Strongly threatening ...Rxa2!} 30. Nd2 Bd3 31. Rf3 c4 $1 32. a4 (32. Bd4 $11) 32... Re5 $17 {[%cal Re5e1]} 33. Re3 {[#]} Rxe3 $1 34. Bxe3 {[#]} a6 ({Black should try} 34... Re7 $1 $17 {[%cal Re7e3]} 35. Bd4 Re1+ 36. Kb2 Re2) 35. Bg5 Ng7 36. Nf3 Ne6 {Hoping for ...Be4.} 37. Be3 Rb3 38. Nd4 Nxd4 39. Bxd4 $11 {[%mdl 4096] Endgame KRB-KRB} Kf7 40. Ra2 Rb1+ 41. Kd2 Kg6 42. Ke3 Kg5 43. Be5 Kg6 44. Kd4 Kf7 45. Kc5 Ke6 46. Bc7 Rb3 47. Ba5 Rb7 48. Rf2 Rb1 49. Bb4 a5 (49... Ke5 $14) 50. Bxa5 $16 Ra1 51. Kb5 Kd5 (51... Kd7 $142 52. Bb4 Rf1 53. Rxf1 Bxf1) 52. Bb4 $18 Ke6 53. a5 {[%cal Ba4a5,Ba5a6][%mdl 32]} Kd7 54. Rf4 h5 55. Rd4+ Kc7 $2 (55... Kc8 56. a6 Re1) 56. a6 Ra2 57. Ba5+ {Accuracy: White = 50%, Black = 38%.} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.13"]
[Round "8.15"]
[White "Abrantes, Tiago Garrido"]
[Black "Labussiere, Victor"]
[Result "0-1"]
[ECO "A46"]
[WhiteElo "2159"]
[BlackElo "2295"]
[Annotator "TA"]
[PlyCount "164"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 31,164,40,64,65,66,66,88,69,78,72,75,20,75,10,18,-30,-25,-8,-31,-31,-13,-58,-44,-59,-23,-44,-18,-38,-12,-19,-12,-25,0,-15,0,0,0,0,517,0,17,-3,0,0,0,-29,-39,-108,-101,-121,-140,-145,-129,-305,-308,-872,-125,-141,-129,-171,-125,-170,-138,-131,-145,-151,-114,-120,-118,-162,-81,-141,-121,-121,-121,-128,0,-96,-95,-122,-103,-127,0,-124,-107,-116,-117,-135,-101,-176,-124,-124,-60,-61,-66,-85,-77,-73,-58,-65,-58,-65,-65,-65,-8,-1212,-8,-8,-8,-12825,-6410,-29973,-29976,-29976,-8,-8,0,-29976,-29977,-29979,-29978,-29978,-29979,-29981,-29982,-29982,-29983,-29983,-29984,-29984,-29982,-29983,-29984,-29984,-29985]} 1. d4 Nf6 2. Nf3 e6 3. c4 c5 4. Nc3 cxd4 5. Nxd4 a6 6. e4 d6 7. Be2 Be7 8. O-O O-O 9. Be3 Nbd7 10. Qd2 Qc7 11. Rac1 b6 12. Rfd1 Bb7 13. f3 Rac8 14. Bf1 Qb8 15. Qf2 Rfe8 16. b3 Bd8 17. g4 {A31: Symmetrical English: 2 Nf3 Nf6 3 d4} (17. Kh1 Bc7 18. Qh4 Ne5 19. Bg1 Ng6 20. Qf2 h5 21. Nc2 d5 22. exd5 exd5 23. Nxd5 Nxd5 24. cxd5 Bf4 {1-0 (68) Dervishi,E (2552)-Shchekachev,A (2534) Paris 2017}) 17... Bc7 18. g5 Nh5 19. Nde2 {White is better.} g6 20. Ng3 $146 ({Predecessor:} 20. Bg2 Re7 21. f4 Rce8 22. Bf3 Ng7 23. Ng3 Rf8 24. Qg2 f6 {1-0 (103) Roeberg,F (2270)-Thoma,C (2242) Germany 2000}) 20... Ng7 21. Rc2 (21. f4 $16) 21... Ba8 (21... Rf8 $1 $11 {remains equal.}) 22. Bd4 (22. f4 $16) 22... Rf8 $11 23. Rcc1 f6 $1 24. gxf6 Nxf6 25. Qb2 Nfh5 26. Bg2 Rf7 27. Nce2 Rcf8 28. Rd3 Bb7 29. a4 Re8 30. Rcd1 Bc6 31. Qc1 Qb7 32. Bf2 Bb8 33. Be3 Bc7 34. Nd4 Qb8 $2 {[%mdl 8192]} (34... Bd7 $11 {and Black stays safe.}) 35. Qd2 $2 (35. Nxc6 $18 Qb7 36. Nd4) 35... Ba8 36. Nde2 {[%cal Rd3d6]} b5 37. axb5 axb5 38. cxb5 Qxb5 39. Nd4 (39. b4 $15) 39... Qb8 $1 $17 40. f4 e5 41. fxe5 dxe5 42. Nde2 $2 (42. Nf3 $17 {is the only way for White.}) 42... Nf4 $19 43. Rd7 $2 (43. Rf1) 43... Qxb3 $2 (43... Rxd7 $19 {is more deadly.} 44. Qxd7 Rd8 45. Qxd8+ Bxd8) 44. Rxf7 $17 Qxf7 45. Rf1 {[%cal Re2f4]} Nge6 46. Qc2 h5 47. Nc3 Rf8 48. Nd5 Bd8 49. Ne2 g5 50. Qb2 Qg7 (50... Qg6 $1 $19 51. Nec3 Bc6) 51. Ng3 (51. Qa2 $142 Bxd5 52. exd5 Nxg2 53. dxe6 Rxf1+ 54. Kxg2) 51... Nxg2 52. Rxf8+ Qxf8 53. Qxg2 Qf7 (53... Qa3 $1 $17 54. Qe2 Nf4 55. Bxf4 exf4) 54. Nf5 {[#]} (54. Qb2 $11) 54... Kh7 $1 55. Qa2 Bc6 56. Qc4 {[#]} Qb7 ({Better is} 56... Qd7 $1 $17 {Hoping for ...Nf4.} 57. Nfe7 Bxd5 58. Nxd5 Nf4) 57. Nb4 (57. Nf6+ $11 {keeps the balance.} Bxf6 58. Qxe6) 57... Bd7 58. Qd5 Qxd5 59. Nxd5 Kg6 60. Kf2 (60. Nde7+ $17 Kh7 61. Nd5) 60... Ba4 (60... Nf4 $19 {aiming for ...Nxd5.} 61. Nd6 Nxd5 62. exd5 g4) 61. Bb6 Bf6 ({Black should play} 61... g4 $17 {White must now prevent ...Bg5.} 62. Bxd8 Nxd8) 62. Nxf6 $15 Kxf6 {[%mdl 4096] Endgame KBN-KBN} 63. Ne3 Bc6 64. Nd5+ Bxd5 65. exd5 $17 {KB-KN} Nf4 66. Bd8+ Kf5 67. d6 g4 (67... Ke6 $15 68. Kg3 Ne2+ 69. Kf3 Nd4+ 70. Ke4 Nf5 71. Bxg5 Nxd6+ 72. Kd3 Kf5) 68. d7 $2 {[%mdl 8192]} (68. Bc7 $11 Ke6 69. Kg3) 68... Nd3+ $2 ({Black should try} 68... Ke6 $19 69. Bg5 Kxd7) 69. Kg3 $1 $11 Nc5 70. h3 $2 {[%mdl 8192]} (70. Kh4 $11) 70... Nxd7 $19 71. hxg4+ hxg4 72. Bc7 Kg5 $2 (72... Nf6 {mates} 73. Bb8 e4 74. Ba7 Nd5 75. Bd4 e3 76. Ba7 e2 77. Kf2 Nf4 78. Bb6 g3+ 79. Ke1 Ke4 80. Kd2 Kf3 81. Ba5 Nd5 82. Kd3 g2 83. Kc4 g1=Q 84. Bd2 Ne3+ 85. Kc5 Nf1+ {[%mdl 64] Discovered Attack} 86. Be3 Qxe3+ 87. Kd5 e1=Q 88. Kc6 Qe6+ 89. Kc7 Qb4 90. Kd8 Qbe7#) 73. Bd8+ $1 $11 Kf5 $2 {[%mdl 8192]} (73... Kh5 $11 74. Kf2 Kg6) 74. Bc7 $1 Nf6 {Black mates.} 75. Bd8 Nh5+ 76. Kh4 Nf4 77. Bc7 e4 78. Kg3 Nd5 79. Ba5 e3 80. Be1 Nf6 81. Ba5 Ne4+ 82. Kg2 e2 {Accuracy: White = 32%, Black = 42%.} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.12"]
[Round "8.16"]
[White "Fernandez, Maria Florencia"]
[Black "Federzoni, Enzo"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2241"]
[BlackElo "2138"]
[Annotator "TA"]
[PlyCount "43"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,43,13,26,-12,0,0,0,-177,278,284,277,278,277,272,283,261,258,263,260,224,239,243,373,361]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Rb1 c5 8. Nf3 O-O 9. Be2 cxd4 10. cxd4 Qa5+ 11. Bd2 Qxa2 12. Qc1 {D85: Exchange Grünfeld: Unusual White 7th moves and lines with 7 Nf3} (12. O-O Bg4 13. Rxb7 Bxf3 14. Bxf3 Bxd4 15. Bg5 Rd8 16. Qc1 Na6 17. Bxe7 Rac8 18. Qf4 Nc5 19. Bxd8 Nxb7 20. Bf6 Bxf6 21. Qxf6 Nc5 22. h4 Qe6 23. Qxe6 Nxe6 24. Ra1 Nc5 25. Rxa7 Re8 {½-½ (25) Lenic,L (2644)-Sedlak,N (2572) Mali Losinj 2019}) 12... Bg4 13. Bc4 Qa4 14. Bd5 $146 {[#]} (14. Bb5 $1 $11 Qa2 15. Bc4) ({Predecessor:} 14. Bb5 Qa2 {½-½ (18) Okhotnik,V (2454)-Kopylov,M (2410) Bargteheide 2016}) 14... Nc6 $4 {[%mdl 8192]} (14... Rc8 $1 $19 {[%cal Rc8c1] avoids the disaster.} 15. Qd1 Qxd1+ 16. Rxd1 Nc6) 15. Bb3 $18 Qa6 16. Bc4 Qa4 {And now ...Bxf3 would win.} 17. Ra1 Qxa1 18. Qxa1 Bxf3 19. gxf3 Nxd4 20. Qd1 b5 21. Bd5 Rab8 (21... Rac8 $142 22. O-O e6) 22. Be3 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.13"]
[Round "9.1"]
[White "Martinez Alcantara, Jose Eduardo"]
[Black "Hernandez Guerrero, Gilberto"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2592"]
[BlackElo "2554"]
[Annotator "ChessBase"]
[PlyCount "73"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. Nf3 {[%emt 0:00:00]} Nf6 {[%emt 0:00:10]} 2. c4 {[%emt 0:00:00]} g6 {[%emt 0:00:52]} 3. g3 {[%emt 0:00:00]} Bg7 {[%emt 0:00:30]} 4. d4 {[%emt 0:00:00]} O-O {[%emt 0:01:24]} 5. Bg2 {[%emt 0:00:00]} c6 {[%emt 0:00:11]} 6. O-O {[%emt 0:00:00]} d5 {[%emt 0:03:08]} 7. b3 {[%emt 0:00:01]} Bf5 {[%emt 0:03:10]} 8. Bb2 {[%emt 0:00:16]} a5 {[%emt 0:07:52]} 9. e3 {[%emt 0:07:13]} Ne4 {[%emt 0:09:02]} 10. Na3 {[%emt 0:05:27]} Na6 {[%emt 0:03:49]} 11. Qe2 {[%emt 0:06:56]} Nb4 {[%emt 0:05:10]} 12. Rfd1 {[%emt 0:03:03]} h6 {[%emt 0:04:14]} 13. Ne5 {[%emt 0:04:21]} g5 {[%emt 0:10:06]} 14. f3 {[%emt 0:03:40]} Nd6 {[%emt 0:00:19]} 15. e4 {[%emt 0:04:07]} Bh7 {[%emt 0:00:07]} 16. c5 {[%emt 0:15:08]} Ne8 {[%emt 0:00:49]} 17. Ng4 {[%emt 0:00:13]} Nf6 {[%emt 0:06:37]} 18. Nf2 {[%emt 0:02:43]} e6 {[%emt 0:02:15]} 19. Nb1 {[%emt 0:01:40]} b6 {[%emt 0:03:41]} 20. cxb6 {[%emt 0:00:13]} Qxb6 {[%emt 0:01:02]} 21. Nc3 {[%emt 0:00:04]} Rfd8 {[%emt 0:07:39]} 22. Na4 {[%emt 0:02:42]} Qb5 {[%emt 0:00:45]} 23. Rd2 {[%emt 0:06:36]} Qxe2 {[%emt 0:05:32]} 24. Rxe2 {[%emt 0:00:02]} g4 {[%emt 0:00:30]} 25. fxg4 {[%emt 0:08:41]} dxe4 {[%emt 0:00:53]} 26. Nxe4 {[%emt 0:00:13]} Nxe4 {[%emt 0:02:24]} 27. Bxe4 {[%emt 0:00:05]} Bxd4+ {[%emt 0:00:53]} 28. Bxd4 {[%emt 0:00:16]} Rxd4 {[%emt 0:00:08]} 29. Bxh7+ {[%emt 0:00:04]} Kxh7 {[%emt 0:00:05]} 30. Rf1 {[%emt 0:00:11]} Kg7 {[%emt 0:02:10]} 31. h3 {[%emt 0:02:24]} Rd3 {[%emt 0:03:55]} 32. Ref2 {[%emt 0:00:48]} Ra7 {[%emt 0:00:51]} 33. Kh2 {[%emt 0:00:02]} Nd5 {[%emt 0:03:28]} 34. Nb2 {[%emt 0:04:58]} Rc3 {[%emt 0:00:44]} 35. Na4 {[%emt 0:03:18]} Re3 {[%emt 0:01:00]} 36. Nb2 {[%emt 0:06:44]} Rc3 {[%emt 0:01:03]} 37. Na4 {[%emt 0:09:54]} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.13"]
[Round "9.2"]
[White "Cruz, Cristhian"]
[Black "Diamant, Andre"]
[Result "1/2-1/2"]
[ECO "A26"]
[WhiteElo "2562"]
[BlackElo "2533"]
[Annotator "ChessBase"]
[PlyCount "22"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. c4 {[%emt 0:00:00]} g6 {[%emt 0:00:03]} 2. g3 {[%emt 0:00:09]} Bg7 {[%emt 0:01:04]} 3. Bg2 {[%emt 0:01:19]} e5 {[%emt 0:00:23]} 4. Nc3 {[%emt 0:01:31]} Nc6 {[%emt 0:00:55]} 5. d3 {[%emt 0:01:15]} d6 {[%emt 0:00:11]} 6. Nf3 {[%emt 0:02:00]} Nf6 {[%emt 0:01:48]} 7. O-O {[%emt 0:02:42]} O-O {[%emt 0:00:51]} 8. Rb1 {[%emt 0:01:46]} a5 {[%emt 0:00:04]} 9. a3 {[%emt 0:00:25]} h6 {[%emt 0:00:03]} 10. b4 {[%emt 0:02:32]} axb4 {[%emt 0:00:07]} 11. axb4 {[%emt 0:00:05]} Be6 {[%emt 0:00:05]} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.13"]
[Round "9.3"]
[White "Aranha Filho, Alvaro Z."]
[Black "Alonso, Salvador"]
[Result "0-1"]
[ECO "D10"]
[WhiteElo "2304"]
[BlackElo "2481"]
[Annotator "ChessBase"]
[PlyCount "100"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:05:43]} d5 {[%emt 0:00:00]} 2. c4 {[%emt 0:03:03]} c6 {[%emt 0:00:00]} 3. Nf3 {[%emt 0:01:16]} Nf6 {[%emt 0:00:03]} 4. cxd5 {[%emt 0:00:04]} cxd5 {[%emt 0:00:14]} 5. Nc3 {[%emt 0:00:05]} Nc6 {[%emt 0:00:23]} 6. e3 {[%emt 0:00:07]} a6 {[%emt 0:06:24]} 7. Ne5 {[%emt 0:01:19]} e6 {[%emt 0:00:32]} 8. f4 {[%emt 0:01:48]} Bd6 {[%emt 0:00:49]} 9. Bd3 {[%emt 0:00:29]} Ne7 {[%emt 0:10:00]} 10. O-O {[%emt 0:01:24]} b5 {[%emt 0:01:14]} 11. Bd2 {[%emt 0:03:41]} O-O {[%emt 0:04:37]} 12. a3 {[%emt 0:05:21]} Bb7 {[%emt 0:01:36]} 13. Qf3 {[%emt 0:02:13]} Rc8 {[%emt 0:42:46]} 14. Be1 {[%emt 0:02:45]} b4 {[%emt 0:04:33]} 15. axb4 {[%emt 0:01:53]} Bxb4 {[%emt 0:00:05]} 16. Bh4 {[%emt 0:03:21]} Ng6 {[%emt 0:02:22]} 17. Bg5 {[%emt 0:03:47]} Bxc3 {[%emt 0:08:07]} 18. bxc3 {[%emt 0:00:33]} Rxc3 {[%emt 0:00:11]} 19. Qh3 {[%emt 0:11:10]} Qc8 {[%emt 0:04:24]} 20. f5 {[%emt 0:04:54]} Nxe5 {[%emt 0:00:09]} 21. dxe5 {[%emt 0:00:10]} Rxd3 {[%emt 0:03:22]} 22. exf6 {[%emt 0:01:35]} d4 {[%emt 0:02:10]} 23. fxg7 {[%emt 0:02:11]} Re8 {[%emt 0:00:15]} 24. f6 {[%emt 0:12:41]} dxe3 {[%emt 0:01:51]} 25. Rac1 {[%emt 0:04:30]} Qd7 {[%emt 0:00:26]} 26. Bxe3 {[%emt 0:01:28]} Qd5 {[%emt 0:04:14]} 27. Rce1 {[%emt 0:00:48]} a5 {[%emt 0:00:42]} 28. Qg3 {[%emt 0:01:22]} a4 {[%emt 0:00:23]} 29. Rf4 {[%emt 0:00:37]} a3 {[%emt 0:00:34]} 30. Rh4 {[%emt 0:00:27]} Qf5 {[%emt 0:01:09]} 31. Rf1 {[%emt 0:00:58]} a2 {[%emt 0:00:42]} 32. Rxf5 {[%emt 0:02:55]} exf5 {[%emt 0:00:01]} 33. Ra4 {[%emt 0:00:46]} Rdxe3 {[%emt 0:00:14]} 34. Qc7 {[%emt 0:00:02]} Re1+ {[%emt 0:00:17]} 35. Kf2 {[%emt 0:00:05]} R1e2+ {[%emt 0:01:57]} 36. Kg3 {[%emt 0:01:21]} Rxg2+ {[%emt 0:00:25]} 37. Kh3 {[%emt 0:00:17]} a1=Q {[%emt 0:00:21]} 38. Rxa1 {[%emt 0:00:15]} Re3+ {[%emt 0:00:05]} 39. Qg3 {[%emt 0:00:21]} Rgxg3+ {[%emt 0:00:42]} 40. hxg3 {[%emt 0:00:12]} Re6 {[%emt 0:00:57]} 41. Rb1 {[%emt 0:30:22]} Bc8 {[%emt 0:30:40]} 42. Rc1 {[%emt 0:00:51]} Re8 {[%emt 0:00:05]} 43. Kh4 {[%emt 0:00:31]} h6 {[%emt 0:00:10]} 44. Kh5 {[%emt 0:01:51]} Kh7 {[%emt 0:00:34]} 45. Rc7 {[%emt 0:00:18]} Re1 {[%emt 0:00:00]} 46. g8=Q+ {[%emt 0:00:00]} Kxg8 {[%emt 0:00:00]} 47. Kxh6 {[%emt 0:00:00]} Rh1+ {[%emt 0:00:00]} 48. Kg5 {[%emt 0:00:00]} Be6 {[%emt 0:00:00]} 49. Rc3 {[%emt 0:00:00]} Kh7 {[%emt 0:00:00]} 50. Ra3 {[%emt 0:00:00]} Rh6 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.13"]
[Round "9.4"]
[White "Perdomo, Leandro"]
[Black "Supi, Luis Paulo"]
[Result "1/2-1/2"]
[ECO "D59"]
[WhiteElo "2474"]
[BlackElo "2578"]
[Annotator "ChessBase"]
[PlyCount "85"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} d5 {[%emt 0:01:21]} 2. c4 {[%emt 0:00:00]} e6 {[%emt 0:00:06]} 3. Nc3 {[%emt 0:00:00]} Be7 {[%emt 0:00:02]} 4. Nf3 {[%emt 0:00:00]} Nf6 {[%emt 0:00:18]} 5. Bg5 {[%emt 0:00:12]} h6 {[%emt 0:00:47]} 6. Bh4 {[%emt 0:00:06]} O-O {[%emt 0:00:18]} 7. e3 {[%emt 0:00:05]} b6 {[%emt 0:00:12]} 8. cxd5 {[%emt 0:02:48]} Nxd5 {[%emt 0:02:30]} 9. Bxe7 {[%emt 0:00:10]} Qxe7 {[%emt 0:00:09]} 10. Nxd5 {[%emt 0:00:06]} exd5 {[%emt 0:00:03]} 11. Rc1 {[%emt 0:00:35]} Be6 {[%emt 0:00:49]} 12. Qa4 {[%emt 0:00:32]} c5 {[%emt 0:06:06]} 13. dxc5 {[%emt 0:02:20]} bxc5 {[%emt 0:00:02]} 14. Qa3 {[%emt 0:01:16]} Rc8 {[%emt 0:01:01]} 15. Be2 {[%emt 0:11:49]} Qf8 {[%emt 0:16:24]} 16. O-O {[%emt 0:17:50]} a5 {[%emt 0:01:19]} 17. Rc3 {[%emt 0:07:58]} Nd7 {[%emt 0:01:12]} 18. Rfc1 {[%emt 0:02:26]} Rcb8 {[%emt 0:00:35]} 19. R3c2 {[%emt 0:18:35]} a4 {[%emt 0:02:40]} 20. Qc3 {[%emt 0:05:54]} Rb4 {[%emt 0:05:33]} 21. Ne5 {[%emt 0:08:09]} d4 {[%emt 0:04:09]} 22. exd4 {[%emt 0:00:06]} cxd4 {[%emt 0:00:07]} 23. Qc7 {[%emt 0:03:39]} Nxe5 {[%emt 0:00:47]} 24. Qxe5 {[%emt 0:00:03]} Bxa2 {[%emt 0:00:40]} 25. Bd3 {[%emt 0:07:29]} Re8 {[%emt 0:03:19]} 26. Qf4 {[%emt 0:00:19]} Be6 {[%emt 0:10:40]} 27. h4 {[%emt 0:04:02]} Rb3 {[%emt 0:05:06]} 28. Qe4 {[%emt 0:00:37]} g6 {[%emt 0:00:09]} 29. Re2 {[%emt 0:00:32]} Rd8 {[%emt 0:00:52]} 30. Bc4 {[%emt 0:03:56]} Bxc4 {[%emt 0:03:20]} 31. Rxc4 {[%emt 0:00:01]} d3 {[%emt 0:04:28]} 32. Rd2 {[%emt 0:00:02]} a3 {[%emt 0:00:36]} 33. bxa3 {[%emt 0:00:21]} Qxa3 {[%emt 0:00:17]} 34. Rc6 {[%emt 0:02:11]} Rb4 {[%emt 0:04:27]} 35. Rxg6+ {[%emt 0:02:47]} Kf8 {[%emt 0:00:02]} 36. Qe5 {[%emt 0:00:30]} Rb1+ {[%emt 0:07:15]} 37. Kh2 {[%emt 0:00:02]} fxg6 {[%emt 0:00:52]} 38. Qf6+ {[%emt 0:00:50]} Ke8 {[%emt 0:00:12]} 39. Qxg6+ {[%emt 0:00:39]} Ke7 {[%emt 0:00:53]} 40. Qh7+ {[%emt 0:00:25]} Ke6 {[%emt 0:01:06]} 41. Qe4+ {[%emt 0:07:40]} Kf6 {[%emt 0:02:13]} 42. Qf4+ {[%emt 0:00:20]} Ke7 {[%emt 0:07:54]} 43. Qe4+ {[%emt 0:00:11]} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.13"]
[Round "9.5"]
[White "Galego, Luis"]
[Black "Limp, Eduardo Thelio"]
[Result "1/2-1/2"]
[ECO "B30"]
[WhiteElo "2483"]
[BlackElo "2356"]
[Annotator "ChessBase"]
[PlyCount "68"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:00:58]} 2. Nf3 {[%emt 0:00:24]} Nc6 {[%emt 0:00:09]} 3. Nc3 {[%emt 0:00:30]} e6 {[%emt 0:01:31]} 4. g3 {[%emt 0:01:18]} d5 {[%emt 0:02:12]} 5. exd5 {[%emt 0:03:48]} exd5 {[%emt 0:00:09]} 6. d3 {[%emt 0:00:13]} Nf6 {[%emt 0:01:25]} 7. Bg2 {[%emt 0:00:03]} d4 {[%emt 0:02:37]} 8. Ne2 {[%emt 0:03:11]} Bd6 {[%emt 0:03:52]} 9. O-O {[%emt 0:02:05]} O-O {[%emt 0:00:33]} 10. Bf4 {[%emt 0:03:02]} Bxf4 {[%emt 0:06:19]} 11. Nxf4 {[%emt 0:04:32]} Re8 {[%emt 0:03:52]} 12. h3 {[%emt 0:04:48]} Qc7 {[%emt 0:09:27]} 13. Nd2 {[%emt 0:01:12]} Bd7 {[%emt 0:12:15]} 14. Ne4 {[%emt 0:12:52]} Nxe4 {[%emt 0:01:41]} 15. dxe4 {[%emt 0:00:28]} Ne7 {[%emt 0:10:15]} 16. Qd2 {[%emt 0:05:57]} Bc6 {[%emt 0:01:15]} 17. Rfe1 {[%emt 0:03:20]} Rad8 {[%emt 0:00:41]} 18. c3 {[%emt 0:02:05]} Ng6 {[%emt 0:02:27]} 19. Nd5 {[%emt 0:01:42]} Bxd5 {[%emt 0:00:07]} 20. exd5 {[%emt 0:00:02]} dxc3 {[%emt 0:01:16]} 21. Qxc3 {[%emt 0:01:54]} Qd6 {[%emt 0:02:53]} 22. a4 {[%emt 0:00:44]} Kf8 {[%emt 0:04:04]} 23. a5 {[%emt 0:00:52]} Rxe1+ {[%emt 0:00:34]} 24. Rxe1 {[%emt 0:00:04]} Ne7 {[%emt 0:00:17]} 25. Qd3 {[%emt 0:00:50]} g6 {[%emt 0:01:55]} 26. Rc1 {[%emt 0:04:46]} b6 {[%emt 0:00:39]} 27. axb6 {[%emt 0:01:28]} axb6 {[%emt 0:00:08]} 28. Ra1 {[%emt 0:07:48]} h5 {[%emt 0:01:09]} 29. h4 {[%emt 0:03:58]} Kg8 {[%emt 0:01:21]} 30. Qb5 {[%emt 0:01:17]} Kg7 {[%emt 0:02:10]} 31. Rb1 {[%emt 0:04:22]} Qf6 {[%emt 0:02:03]} 32. Rd1 {[%emt 0:01:28]} Qd6 {[%emt 0:00:14]} 33. Rb1 {[%emt 0:03:52]} Qf6 {[%emt 0:00:17]} 34. Rd1 {[%emt 0:00:06]} Qd6 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.13"]
[Round "9.7"]
[White "Labussiere, Victor"]
[Black "Di Berardino, Diego Rafael"]
[Result "1-0"]
[ECO "A31"]
[WhiteElo "2295"]
[BlackElo "2489"]
[Annotator "ChessBase"]
[PlyCount "57"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. Nf3 {[%emt 0:01:38]} c5 {[%emt 0:00:00]} 2. c4 {[%emt 0:02:34]} Nf6 {[%emt 0:00:13]} 3. d4 {[%emt 0:02:51]} cxd4 {[%emt 0:00:05]} 4. Nxd4 {[%emt 0:00:08]} b6 {[%emt 0:01:00]} 5. f3 {[%emt 0:05:24]} Bb7 {[%emt 0:00:32]} 6. e4 {[%emt 0:00:39]} d6 {[%emt 0:00:05]} 7. Nc3 {[%emt 0:01:58]} e6 {[%emt 0:00:08]} 8. Be3 {[%emt 0:01:54]} Be7 {[%emt 0:00:08]} 9. Be2 O-O {[%emt 0:00:12]} 10. O-O {[%emt 0:00:42]} a6 {[%emt 0:02:06]} 11. Qd2 {[%emt 0:03:05]} Qc7 {[%emt 0:04:31]} 12. Rfc1 {[%emt 0:00:38]} Rc8 {[%emt 0:10:04]} 13. Qe1 {[%emt 0:16:09]} Qd8 {[%emt 0:09:03]} 14. Kh1 {[%emt 0:03:34]} Nbd7 {[%emt 0:06:32]} 15. b3 {[%emt 0:11:36]} h5 {[%emt 0:14:27]} 16. Rc2 {[%emt 0:07:47]} h4 {[%emt 0:01:49]} 17. Qxh4 {[%emt 0:05:26]} Nxe4 {[%emt 0:04:47]} 18. Qh3 {[%emt 0:08:50]} Nef6 {[%emt 0:04:29]} 19. Rd1 {[%emt 0:04:29]} Nf8 {[%emt 0:06:39]} 20. f4 {[%emt 0:03:52]} Ne4 {[%emt 0:12:06]} 21. Bf3 {[%emt 0:01:27]} Nxc3 {[%emt 0:00:21]} 22. Rxc3 {[%emt 0:00:42]} Qc7 {[%emt 0:03:12]} 23. f5 {[%emt 0:03:17]} e5 {[%emt 0:00:58]} 24. Nc2 {[%emt 0:00:47]} b5 {[%emt 0:06:25]} 25. Bxb7 {[%emt 0:03:15]} Qxb7 {[%emt 0:00:03]} 26. Nb4 {[%emt 0:00:04]} Nd7 {[%emt 0:06:13]} 27. Nd5 {[%emt 0:01:54]} Bd8 {[%emt 0:00:32]} 28. Bh6 {[%emt 0:02:11]} Bf6 {[%emt 0:05:00]} 29. Rg3 {[%emt 0:01:00]} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.13"]
[Round "9.8"]
[White "Matsuura, Everaldo"]
[Black "Guimaraes, Diogo Duarte"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "2448"]
[BlackElo "2322"]
[Annotator "NA"]
[PlyCount "137"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. c4 {[%emt 0:01:18]} Nf6 {[%emt 0:13:17]} 2. Nc3 {[%emt 0:00:29]} c6 {[%emt 0:00:02]} 3. e4 {[%emt 0:00:35]} d5 {[%emt 0:00:05]} 4. exd5 {[%emt 0:00:22]} cxd5 {[%emt 0:00:04]} 5. d4 {[%emt 0:00:15]} Nc6 {[%emt 0:01:50]} 6. Bg5 {[%emt 0:00:18]} e6 {[%emt 0:05:20]} 7. Nf3 {[%emt 0:00:32]} Be7 {[%emt 0:00:16]} 8. c5 {[%emt 0:00:38]} O-O {[%emt 0:00:18]} 9. Bb5 {[%emt 0:00:19]} Bd7 {[%emt 0:10:26]} 10. Rc1 {[%emt 0:07:52]} h6 {[%emt 0:04:37]} 11. Bf4 {[%emt 0:02:58]} Ne4 {[%emt 0:02:07]} 12. O-O {[%emt 0:03:14]} Qa5 {[%emt 0:12:57]} 13. Bd3 {[%emt 0:05:42]} f5 {[%emt 0:13:25]} 14. Ne5 {[%emt 0:12:07]} Nxe5 {[%emt 0:03:11]} 15. Bxe5 {[%emt 0:00:20]} Rac8 {[%emt 0:07:54]} 16. f3 {[%emt 0:08:07]} Nf6 {[%emt 0:04:01]} 17. Rb1 {[%emt 0:03:23]} Qd8 {[%emt 0:03:27]} 18. b4 {[%emt 0:01:52]} Be8 {[%emt 0:01:34]} 19. Nb5 {[%emt 0:10:47]} Bxb5 {[%emt 0:06:00]} 20. Bxb5 {[%emt 0:00:27]} Nd7 {[%emt 0:00:03]} 21. Bxd7 {[%emt 0:00:58]} Qxd7 {[%emt 0:00:03]} 22. b5 {[%emt 0:00:37]} Bf6 {[%emt 0:00:53]} 23. Re1 {[%emt 0:00:19]} Ra8 {[%emt 0:03:18]} 24. Qc2 {[%emt 0:12:18]} Rfc8 {[%emt 0:00:14]} 25. Bxf6 {[%emt 0:12:47]} gxf6 {[%emt 0:00:04]} 26. Rbc1 {[%emt 0:01:48]} Rc7 {[%emt 0:02:30]} 27. a4 {[%emt 0:01:20]} Re8 {[%emt 0:01:14]} 28. f4 {[%emt 0:00:47]} b6 {[%emt 0:01:27]} 29. c6 {[%emt 0:01:33]} Qd6 {[%emt 0:00:03]} 30. Qd2 {[%emt 0:00:54]} Kh7 {[%emt 0:00:23]} 31. Re2 {[%emt 0:02:08]} Qa3 {[%emt 0:00:43]} 32. Qc2 {[%emt 0:01:10]} Qd6 {[%emt 0:00:53]} 33. g3 {[%emt 0:00:46]} h5 {[%emt 0:01:14]} 34. Rce1 {[%emt 0:00:20]} Rce7 {[%emt 0:00:36]} 35. Qd3 {[%emt 0:04:18]} Kh6 {[%emt 0:00:40]} 36. Qd2 {[%emt 0:00:27]} Rg8 {[%emt 0:00:17]} 37. Kh1 {[%emt 0:00:56]} Kg6 {[%emt 0:01:26]} 38. Re3 {[%emt 0:00:10]} Kf7 {[%emt 0:00:53]} 39. Qe2 {[%emt 0:00:22]} Rh8 {[%emt 0:00:09]} 40. h3 {[%emt 0:02:22]} Rh7 {[%emt 0:01:23]} 41. c7 {[%emt 0:05:39]} Rh8 {[%emt 0:01:22]} 42. Rc3 {[%emt 0:02:55]} Ree8 {[%emt 0:10:59]} 43. Rc6 {[%emt 0:01:10]} Qd7 {[%emt 0:00:15]} 44. Kg2 {[%emt 0:16:14]} Kg6 {[%emt 0:01:52]} 45. Kf3 {[%emt 0:03:26]} Re7 {[%emt 0:01:00]} 46. Qc2 {[%emt 0:02:41]} Rc8 {[%emt 0:02:38]} 47. g4 {[%emt 0:01:02]} Kf7 {[%emt 0:04:55]} 48. gxf5 {[%emt 0:01:06]} exf5 {[%emt 0:00:06]} 49. Rxe7+ {[%emt 0:01:22]} Kxe7 {[%emt 0:00:18]} 50. Kg3 {[%emt 0:00:48]} Kf7 {[%emt 0:00:34]} 51. Qe2 {[%emt 0:00:23]} Rxc7 {[%emt 0:00:49]} 52. Qxh5+ {[%emt 0:00:12]} Kg7 {[%emt 0:00:08]} 53. Kh4 {[%emt 0:01:01]} Rxc6 {[%emt 0:00:49]} 54. bxc6 {[%emt 0:00:06]} Qe6 {[%emt 0:00:12]} 55. Qf3 {[%emt 0:00:25]} Qxc6 {[%emt 0:00:17]} 56. Qg3+ {[%emt 0:00:38]} Kh7 {[%emt 0:03:17]} 57. Qd3 {[%emt 0:00:22]} Qe6 {[%emt 0:00:19]} 58. Qd2 {[%emt 0:00:51]} Kh6 {[%emt 0:00:25]} 59. Kg3 {[%emt 0:00:15]} Qc6 {[%emt 0:00:21]} 60. Qb4 {[%emt 0:00:26]} Qe8 {[%emt 0:00:24]} 61. Kh4 {[%emt 0:01:00]} a5 {[%emt 0:00:23]} 62. Qc3 {[%emt 0:00:15]} Qxa4 {[%emt 0:01:47]} 63. Qc8 {[%emt 0:00:12]} Kg7 {[%emt 0:00:27]} 64. Qc7+ {[%emt 0:00:45]} Kg6 {[%emt 0:01:12]} 65. Qd8 {[%emt 0:00:34]} Kf7 {[%emt 0:00:30]} 66. Qxd5+ {[%emt 0:00:07]} Kg6 {[%emt 0:01:52]} 67. Qg8+ {[%emt 0:00:23]} Kh6 {[%emt 0:00:05]} 68. Qh8+ {[%emt 0:00:22]} Kg6 {[%emt 0:00:01]} 69. Qg8+ {[%emt 0:01:09] b5} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.13"]
[Round "9.9"]
[White "Zambrana, Oswaldo"]
[Black "Fernandez, Maria Florencia"]
[Result "1-0"]
[ECO "C04"]
[WhiteElo "2445"]
[BlackElo "2241"]
[Annotator "NA"]
[PlyCount "117"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:17:19]} e6 {[%emt 0:00:00]} 2. d4 {[%emt 0:00:19]} d5 {[%emt 0:00:00]} 3. Nd2 {[%emt 0:00:05]} Nc6 {[%emt 0:00:05]} 4. Ngf3 {[%emt 0:01:02]} Nf6 {[%emt 0:00:14]} 5. e5 {[%emt 0:00:05]} Nd7 {[%emt 0:00:03]} 6. Nb3 {[%emt 0:11:25]} a5 {[%emt 0:00:35]} 7. a4 {[%emt 0:00:19]} Be7 {[%emt 0:00:17]} 8. c3 {[%emt 0:02:04]} f6 {[%emt 0:01:23]} 9. exf6 {[%emt 0:00:29]} Bxf6 {[%emt 0:00:08]} 10. Bb5 {[%emt 0:11:16]} O-O {[%emt 0:02:35]} 11. Bxc6 {[%emt 0:00:05]} bxc6 {[%emt 0:00:12]} 12. Bf4 {[%emt 0:00:07]} e5 {[%emt 0:01:24]} 13. dxe5 {[%emt 0:00:57]} Be7 {[%emt 0:03:19]} 14. Bg3 {[%emt 0:00:45]} Qe8 {[%emt 0:32:15]} 15. O-O {[%emt 0:00:38]} Nb6 {[%emt 0:06:22]} 16. e6 {[%emt 0:07:22]} Bxe6 {[%emt 0:06:25]} 17. Re1 {[%emt 0:05:25]} Bg4 {[%emt 0:01:04]} 18. Qe2 {[%emt 0:01:02]} Bd6 {[%emt 0:24:22]} 19. Qxe8 {[%emt 0:15:56]} Rfxe8 {[%emt 0:00:04]} 20. Rxe8+ {[%emt 0:00:20]} Rxe8 {[%emt 0:00:03]} 21. Bxd6 {[%emt 0:00:30]} cxd6 {[%emt 0:00:04]} 22. Nxa5 {[%emt 0:00:11]} Bxf3 {[%emt 0:04:34]} 23. gxf3 {[%emt 0:00:22]} Ra8 {[%emt 0:03:04]} 24. Nxc6 {[%emt 0:01:11]} Rxa4 {[%emt 0:00:02]} 25. Re1 {[%emt 0:01:08]} Ra2 {[%emt 0:01:25]} 26. b3 {[%emt 0:00:06]} Rb2 {[%emt 0:02:01]} 27. Nd4 {[%emt 0:00:14]} Kf7 {[%emt 0:00:52]} 28. Ra1 {[%emt 0:02:11]} Nd7 {[%emt 0:01:56]} 29. Ra7 {[%emt 0:02:49]} Ke8 {[%emt 0:01:44]} 30. Kg2 {[%emt 0:00:30]} g6 {[%emt 0:01:59]} 31. b4 {[%emt 0:00:24]} h5 {[%emt 0:01:33]} 32. h4 {[%emt 0:01:30]} Ne5 {[%emt 0:00:22]} 33. Nb5 {[%emt 0:00:38]} Nc4 {[%emt 0:01:55]} 34. Kg3 {[%emt 0:03:19]} Rb1 {[%emt 0:00:02]} 35. Nc7+ {[%emt 0:02:37]} Kf7 {[%emt 0:00:19]} 36. Nxd5+ {[%emt 0:00:33]} Ke6 {[%emt 0:00:09]} 37. Nf4+ {[%emt 0:08:58]} Kf6 {[%emt 0:00:10]} 38. Nh3 {[%emt 0:00:02]} Ne5 {[%emt 0:03:57]} 39. f4 {[%emt 0:01:06]} Nf7 {[%emt 0:01:58]} 40. Ng5 {[%emt 0:00:14]} Nxg5 {[%emt 0:00:33]} 41. fxg5+ {[%emt 0:31:47]} Ke5 {[%emt 0:02:30]} 42. Re7+ {[%emt 0:00:00]} Kf5 {[%emt 0:02:17]} 43. Rf7+ {[%emt 0:00:00]} Ke5 {[%emt 0:00:48]} 44. f4+ {[%emt 0:00:00]} Kd5 {[%emt 0:04:47]} 45. Rf6 {[%emt 0:00:00]} Rg1+ {[%emt 0:03:20]} 46. Kf2 {[%emt 0:00:00]} Rg4 {[%emt 0:00:33]} 47. Kf3 {[%emt 0:00:00]} Rxh4 {[%emt 0:00:12]} 48. c4+ {[%emt 0:00:00]} Kxc4 {[%emt 0:00:14]} 49. Rxd6 {[%emt 0:00:00]} Rh1 {[%emt 0:03:55]} 50. Rxg6 {[%emt 0:00:00]} Kd5 {[%emt 0:00:34]} 51. Rf6 {[%emt 0:00:00]} Rh3+ {[%emt 0:10:35]} 52. Kf2 {[%emt 0:00:00]} Ke4 {[%emt 0:00:41]} 53. Kg2 {[%emt 0:00:00]} Rb3 {[%emt 0:01:56]} 54. g6 {[%emt 0:00:00]} h4 {[%emt 0:00:04]} 55. b5 {[%emt 0:00:00]} Rb2+ {[%emt 0:04:58]} 56. Kh3 {[%emt 0:00:00]} Kf3 {[%emt 0:00:24]} 57. Kxh4 {[%emt 0:00:00]} Rxb5 {[%emt 0:00:08]} 58. g7 {[%emt 0:00:00]} Rb1 {[%emt 0:00:20]} 59. Kh5 {[%emt 0:00:00]} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.13"]
[Round "9.10"]
[White "Ambartsumova, Karina"]
[Black "Roselli Mailhe, Bernardo"]
[Result "1/2-1/2"]
[ECO "A49"]
[WhiteElo "2341"]
[BlackElo "2442"]
[Annotator "NA"]
[PlyCount "102"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:03:56]} 2. Nf3 {[%emt 0:00:24]} g6 {[%emt 0:00:04]} 3. g3 {[%emt 0:00:38]} Bg7 {[%emt 0:00:05]} 4. Bg2 {[%emt 0:01:21]} O-O {[%emt 0:00:07]} 5. O-O {[%emt 0:00:29]} d6 {[%emt 0:00:05]} 6. b3 {[%emt 0:01:18]} a5 {[%emt 0:00:06]} 7. a4 {[%emt 0:01:55]} Nc6 {[%emt 0:00:53]} 8. Bb2 {[%emt 0:03:04]} e5 {[%emt 0:02:33]} 9. dxe5 {[%emt 0:02:55]} Ng4 {[%emt 0:00:08]} 10. Qc1 {[%emt 0:04:19]} Ncxe5 {[%emt 0:07:53]} 11. Nxe5 {[%emt 0:16:27]} Nxe5 {[%emt 0:01:35]} 12. Rd1 {[%emt 0:07:11]} Re8 {[%emt 0:11:51]} 13. Nd2 {[%emt 0:07:02]} c6 {[%emt 0:09:49]} 14. Nf3 {[%emt 0:08:06]} Qb6 {[%emt 0:07:16]} 15. Nxe5 {[%emt 0:07:00]} Bxe5 {[%emt 0:03:09]} 16. Bxe5 {[%emt 0:00:18]} dxe5 {[%emt 0:00:07]} 17. Qb2 {[%emt 0:07:35]} Bf5 {[%emt 0:12:49]} 18. Qc3 {[%emt 0:03:50]} Qb4 {[%emt 0:04:36]} 19. Qd2 {[%emt 0:10:33]} Qc5 {[%emt 0:08:05]} 20. Rac1 {[%emt 0:00:27]} Kg7 {[%emt 0:00:24]} 21. h3 {[%emt 0:01:37]} h5 {[%emt 0:02:51]} 22. e4 {[%emt 0:06:11]} Be6 {[%emt 0:00:05]} 23. Qd6 {[%emt 0:00:04]} Qxd6 {[%emt 0:03:51]} 24. Rxd6 {[%emt 0:00:01]} Red8 {[%emt 0:00:43]} 25. Rcd1 {[%emt 0:00:20]} Rxd6 {[%emt 0:00:04]} 26. Rxd6 {[%emt 0:00:05]} h4 {[%emt 0:01:07]} 27. gxh4 {[%emt 0:02:28]} Rh8 {[%emt 0:00:05]} 28. Kh2 {[%emt 0:00:05]} Rxh4 {[%emt 0:00:04]} 29. Rd8 {[%emt 0:00:06]} Rh8 {[%emt 0:00:04]} 30. Rxh8 {[%emt 0:00:29]} Kxh8 {[%emt 0:00:04]} 31. Bf1 {[%emt 0:06:16]} Kg7 {[%emt 0:00:34]} 32. Kg3 {[%emt 0:00:13]} Kf6 {[%emt 0:00:38]} 33. h4 {[%emt 0:02:39]} Ke7 {[%emt 0:08:48]} 34. f4 {[%emt 0:00:06]} Kd6 {[%emt 0:01:26]} 35. Bd3 {[%emt 0:00:41]} exf4+ {[%emt 0:03:23]} 36. Kxf4 {[%emt 0:00:01]} f6 {[%emt 0:00:20]} 37. e5+ {[%emt 0:00:44]} fxe5+ {[%emt 0:00:06]} 38. Kg5 {[%emt 0:00:02]} Bf7 {[%emt 0:00:11]} 39. Kf6 {[%emt 0:00:11]} Be8 {[%emt 0:00:06]} 40. c4 {[%emt 0:02:14]} b6 {[%emt 0:06:28]} 41. Bc2 {[%emt 0:06:19]} b5 {[%emt 0:09:29]} 42. cxb5 {[%emt 0:04:19]} cxb5 {[%emt 0:00:05]} 43. axb5 {[%emt 0:00:09]} Bxb5 {[%emt 0:04:16]} 44. Bxg6 {[%emt 0:00:19]} Be2 {[%emt 0:00:06]} 45. h5 {[%emt 0:00:16]} Bxh5 {[%emt 0:00:05]} 46. Bxh5 {[%emt 0:00:02]} Kd5 {[%emt 0:00:07]} 47. Kf5 {[%emt 0:05:47]} Kd4 {[%emt 0:01:56]} 48. Bf3 {[%emt 0:02:53]} Kc3 {[%emt 0:01:28]} 49. Bd5 {[%emt 0:00:17]} Kb4 {[%emt 0:00:07]} 50. Kxe5 {[%emt 0:00:11]} a4 {[%emt 0:00:06]} 51. bxa4 {[%emt 0:00:05]} Kxa4 {[%emt 0:00:04]} 1/2-1/2

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.13"]
[Round "9.11"]
[White "Rocha, Vitor Firmo de Souza"]
[Black "Molina, Roberto Junio Brito"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2169"]
[BlackElo "2448"]
[Annotator "NA"]
[PlyCount "90"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:02:44]} c6 {[%emt 0:02:11]} 2. d4 {[%emt 0:00:10]} d5 {[%emt 0:00:03]} 3. e5 {[%emt 0:00:43]} Bf5 {[%emt 0:00:06]} 4. Nf3 {[%emt 0:00:13]} e6 {[%emt 0:00:03]} 5. Be2 {[%emt 0:00:08]} Nd7 {[%emt 0:00:31]} 6. O-O {[%emt 0:00:10]} Bg6 {[%emt 0:00:09]} 7. Nbd2 {[%emt 0:02:14]} Nh6 {[%emt 0:00:52]} 8. Nb3 {[%emt 0:00:14]} Be7 {[%emt 0:00:31]} 9. a4 {[%emt 0:01:32]} O-O {[%emt 0:00:36]} 10. a5 {[%emt 0:00:04]} Rc8 {[%emt 0:01:05]} 11. Bd2 {[%emt 0:02:05]} c5 {[%emt 0:01:30]} 12. Nxc5 {[%emt 0:06:18]} Nxc5 {[%emt 0:01:18]} 13. dxc5 {[%emt 0:00:05]} Bxc5 {[%emt 0:00:12]} 14. c3 {[%emt 0:10:11]} a6 {[%emt 0:01:08]} 15. g3 {[%emt 0:06:36]} Nf5 {[%emt 0:00:48]} 16. Kg2 {[%emt 0:01:09]} d4 {[%emt 0:17:52]} 17. Ne1 {[%emt 0:03:44]} dxc3 {[%emt 0:01:46]} 18. bxc3 {[%emt 0:03:49]} Rc7 {[%emt 0:02:21]} 19. Qc1 {[%emt 0:04:53]} Qc8 20. Qb2 {[%emt 0:03:07]} Rd8 {[%emt 0:02:29]} 21. Nf3 {[%emt 0:06:12]} Ne7 {[%emt 0:00:49]} 22. Rfd1 {[%emt 0:02:37]} Nc6 {[%emt 0:01:34]} 23. Bf4 {[%emt 0:01:11]} Rcd7 {[%emt 0:03:08]} 24. Re1 {[%emt 0:02:39]} h6 {[%emt 0:01:22]} 25. h3 {[%emt 0:02:20]} Qc7 {[%emt 0:02:46]} 26. Qa2 {[%emt 0:00:44]} Bd3 {[%emt 0:03:21]} 27. Bd1 Na7 28. g4 {[%emt 0:04:21]} Nb5 {[%emt 0:01:34]} 29. Qb2 {[%emt 0:02:43]} Qc6 {[%emt 0:03:43]} 30. g5 {[%emt 0:03:39]} Be4 {[%emt 0:02:43]} 31. Be2 {[%emt 0:01:01]} Rd3 {[%emt 0:00:16]} 32. Be3 {[%emt 0:01:05]} Bxe3 {[%emt 0:00:32]} 33. Bxd3 {[%emt 0:01:28]} Bxf3+ {[%emt 0:01:13]} 34. Kg3 {[%emt 0:07:51]} Bxg5 {[%emt 0:00:43]} 35. Be2 {[%emt 0:01:52]} Bxe2 {[%emt 0:01:15]} 36. Qxe2 {[%emt 0:00:34]} Nxc3 {[%emt 0:01:40]} 37. Qg4 {[%emt 0:01:12]} Rd3+ {[%emt 0:00:37]} 38. Kh2 {[%emt 0:01:41]} Rf3 {[%emt 0:01:19]} 39. Kg1 {[%emt 0:00:47]} Bd2 {[%emt 0:01:15]} 40. Red1 {[%emt 0:02:51]} Nxd1 {[%emt 0:00:49]} 41. Rxd1 {[%emt 0:30:09]} Bxa5 {[%emt 0:31:23]} 42. Rd6 {[%emt 0:00:28]} Qc1+ {[%emt 0:01:09]} 43. Kg2 {[%emt 0:00:13]} Rf5 {[%emt 0:00:19]} 44. Qd4 {[%emt 0:01:20]} Be1 {[%emt 0:01:08]} 45. Rd8+ {[%emt 0:01:00]} Kh7 {[%emt 0:00:05]} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.13"]
[Round "9.12"]
[White "Carraro, Denise"]
[Black "Rodi, Luis Ernesto"]
[Result "0-1"]
[ECO "C75"]
[WhiteElo "2177"]
[BlackElo "2341"]
[Annotator "NA"]
[PlyCount "102"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} e5 {[%emt 0:00:00]} 2. Nf3 {[%emt 0:00:10]} Nc6 {[%emt 0:00:00]} 3. Bb5 {[%emt 0:00:07]} a6 {[%emt 0:00:00]} 4. Ba4 {[%emt 0:00:03]} d6 {[%emt 0:00:00]} 5. c3 {[%emt 0:00:03]} Bd7 {[%emt 0:00:47]} 6. O-O {[%emt 0:04:58]} g6 {[%emt 0:00:28]} 7. d4 {[%emt 0:03:29]} Bg7 {[%emt 0:00:12]} 8. Re1 {[%emt 0:05:30]} Nf6 {[%emt 0:01:10]} 9. Nbd2 {[%emt 0:09:01]} Nh5 {[%emt 0:05:39]} 10. Nf1 {[%emt 0:00:37]} O-O {[%emt 0:01:06]} 11. Bg5 {[%emt 0:02:32]} f6 {[%emt 0:00:18]} 12. Be3 {[%emt 0:00:03]} Kh8 {[%emt 0:01:23]} 13. Qd2 {[%emt 0:04:50]} Nxd4 {[%emt 0:04:43]} 14. cxd4 {[%emt 0:13:26]} Bxa4 {[%emt 0:00:41]} 15. Qb4 {[%emt 0:00:01]} Bb5 {[%emt 0:01:51]} 16. a4 {[%emt 0:10:27]} Bxf1 {[%emt 0:03:52]} 17. Kxf1 {[%emt 0:00:03]} exd4 {[%emt 0:00:28]} 18. Nxd4 {[%emt 0:00:13]} c5 {[%emt 0:00:28]} 19. Ne6 {[%emt 0:02:32]} cxb4 {[%emt 0:04:01]} 20. Nxd8 {[%emt 0:00:02]} Raxd8 {[%emt 0:00:36]} 21. g4 {[%emt 0:00:02]} f5 {[%emt 0:00:11]} 22. gxh5 {[%emt 0:00:02]} Bxb2 {[%emt 0:00:20]} 23. Rab1 {[%emt 0:02:36]} Bc3 {[%emt 0:00:30]} 24. Red1 {[%emt 0:00:03]} fxe4 {[%emt 0:00:32]} 25. a5 {[%emt 0:00:10]} Rf5 {[%emt 0:02:07]} 26. hxg6 {[%emt 0:00:02]} hxg6 {[%emt 0:00:12]} 27. Bd4+ {[%emt 0:08:57]} Bxd4 {[%emt 0:03:19]} 28. Rxd4 {[%emt 0:00:02]} e3 {[%emt 0:00:11]} 29. Rb2 {[%emt 0:05:06]} Rxa5 {[%emt 0:05:27]} 30. fxe3 {[%emt 0:03:44]} Rf5+ {[%emt 0:00:12]} 31. Ke2 {[%emt 0:00:19]} a5 {[%emt 0:00:05]} 32. Kd3 {[%emt 0:02:05]} Kg7 {[%emt 0:00:40]} 33. Rc4 {[%emt 0:01:11]} Rc5 {[%emt 0:01:27]} 34. e4 {[%emt 0:11:04]} b5 {[%emt 0:01:50]} 35. Rd4 {[%emt 0:00:09]} Rc3+ {[%emt 0:00:14]} 36. Ke2 {[%emt 0:02:24]} Rh8 {[%emt 0:00:26]} 37. Kd1 {[%emt 0:00:52]} b3 {[%emt 0:02:05]} 38. Rxd6 {[%emt 0:01:54]} a4 {[%emt 0:00:34]} 39. Rg2 {[%emt 0:04:39]} Kf7 {[%emt 0:04:39]} 40. Rgxg6 {[%emt 0:00:40]} Rd3+ {[%emt 0:00:15]} 41. Rxd3 {[%emt 0:31:08]} Kxg6 {[%emt 0:30:02]} 42. Kc1 {[%emt 0:01:52]} Rxh2 {[%emt 0:01:13]} 43. Rd6+ {[%emt 0:02:14]} Kf7 {[%emt 0:00:22]} 44. Ra6 {[%emt 0:00:01]} Ra2 {[%emt 0:02:12]} 45. Ra5 {[%emt 0:02:03]} a3 {[%emt 0:00:33]} 46. Kb1 {[%emt 0:00:00]} b4 {[%emt 0:00:00]} 47. Rf5+ {[%emt 0:00:00]} Ke6 {[%emt 0:00:00]} 48. Rf3 {[%emt 0:00:00]} Rb2+ {[%emt 0:00:00]} 49. Ka1 {[%emt 0:00:00]} Ke5 {[%emt 0:00:00]} 50. Re3 {[%emt 0:00:00]} Kd4 {[%emt 0:00:00]} 51. Re1 {[%emt 0:00:00]} Rc2 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.13"]
[Round "9.13"]
[White "Gauche, Charles"]
[Black "Moura, Eduardo Eugenio Chav"]
[Result "0-1"]
[ECO "C41"]
[WhiteElo "2248"]
[BlackElo "2098"]
[Annotator "NA"]
[PlyCount "96"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} d6 {[%emt 0:00:00]} 2. d4 {[%emt 0:00:00]} Nf6 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:00:05]} e5 {[%emt 0:00:00]} 4. Nf3 {[%emt 0:00:38]} Nbd7 {[%emt 0:00:00]} 5. h3 {[%emt 0:01:08]} c6 {[%emt 0:01:52]} 6. Be3 {[%emt 0:00:37]} b5 {[%emt 0:02:48]} 7. a3 {[%emt 0:01:08]} a6 {[%emt 0:06:42]} 8. Be2 {[%emt 0:02:58]} Be7 {[%emt 0:01:48]} 9. O-O {[%emt 0:01:03]} O-O {[%emt 0:00:15]} 10. Nd2 {[%emt 0:00:28]} exd4 {[%emt 0:05:49]} 11. Bxd4 {[%emt 0:00:17]} c5 {[%emt 0:00:03]} 12. Be3 {[%emt 0:00:11]} Bb7 {[%emt 0:00:04]} 13. Bd3 {[%emt 0:03:34]} Ne5 {[%emt 0:05:45]} 14. f4 {[%emt 0:02:44]} Nxd3 {[%emt 0:00:22]} 15. cxd3 {[%emt 0:00:05]} d5 {[%emt 0:00:15]} 16. e5 {[%emt 0:00:06]} d4 {[%emt 0:00:06]} 17. exf6 {[%emt 0:00:19]} Bxf6 {[%emt 0:00:21]} 18. Nde4 {[%emt 0:12:08]} dxe3 {[%emt 0:02:10]} 19. Qe2 {[%emt 0:01:01]} Bd4 {[%emt 0:01:37]} 20. f5 {[%emt 0:00:04]} f6 {[%emt 0:01:23]} 21. Rf4 {[%emt 0:00:16]} Qc7 {[%emt 0:10:28]} 22. Rh4 {[%emt 0:01:06]} Rad8 {[%emt 0:02:02]} 23. Qh5 {[%emt 0:03:57]} h6 {[%emt 0:00:08]} 24. Rg4 {[%emt 0:03:25]} Kh8 {[%emt 0:03:44]} 25. Ne2 {[%emt 0:04:21]} Bxe4 {[%emt 0:10:46]} 26. Rxe4 {[%emt 0:05:31]} Bxb2 {[%emt 0:02:41]} 27. Re1 {[%emt 0:10:22]} Be5 {[%emt 0:03:10]} 28. Rxe3 {[%emt 0:00:50]} Qa5 {[%emt 0:03:41]} 29. Rf1 {[%emt 0:01:02]} Qd2 {[%emt 0:06:35]} 30. Qf3 {[%emt 0:01:27]} b4 {[%emt 0:01:46]} 31. axb4 {[%emt 0:00:26]} cxb4 {[%emt 0:00:03]} 32. Kh1 {[%emt 0:00:10]} a5 {[%emt 0:00:38]} 33. d4 {[%emt 0:01:40]} Bd6 {[%emt 0:01:03]} 34. Rd3 {[%emt 0:01:24]} Qb2 {[%emt 0:03:11]} 35. Rb3 {[%emt 0:02:09]} Qd2 {[%emt 0:02:23]} 36. Rd3 {[%emt 0:00:12]} Qa2 {[%emt 0:07:32]} 37. Rfd1 {[%emt 0:09:42]} Rfe8 {[%emt 0:05:28]} 38. R1d2 {[%emt 0:13:28]} Qa1+ {[%emt 0:01:57]} 39. Rd1 {[%emt 0:01:03]} Qa2 {[%emt 0:00:07]} 40. R1d2 {[%emt 0:00:20]} Qc4 {[%emt 0:00:10]} 41. d5 {[%emt 0:30:32]} a4 {[%emt 0:34:12]} 42. Rd4 {[%emt 0:00:41]} Qc1+ {[%emt 0:05:06]} 43. Rd1 {[%emt 0:00:21]} Qe3 {[%emt 0:00:16]} 44. Qxe3 {[%emt 0:01:05]} Rxe3 {[%emt 0:00:12]} 45. Nf4 {[%emt 0:00:02]} a3 {[%emt 0:00:00]} 46. Ne6 {[%emt 0:00:00]} Ra8 {[%emt 0:00:00]} 47. Nc7 {[%emt 0:00:00]} Bxc7 {[%emt 0:00:00]} 48. d6 {[%emt 0:00:00]} Bxd6 {[%emt 0:00:00]} 0-1

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.13"]
[Round "9.14"]
[White "Donoso Diaz, Sebastian"]
[Black "Labussiere, Yago"]
[Result "1-0"]
[ECO "E71"]
[WhiteElo "2234"]
[BlackElo "2091"]
[Annotator "NA"]
[PlyCount "77"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. c4 {[%emt 0:00:00]} g6 {[%emt 0:01:29]} 2. Nc3 {[%emt 0:00:10]} Nf6 {[%emt 0:01:06]} 3. e4 {[%emt 0:00:33]} d6 {[%emt 0:00:41]} 4. d4 {[%emt 0:00:09]} Bg7 {[%emt 0:00:51]} 5. h3 {[%emt 0:00:12]} O-O {[%emt 0:02:01]} 6. Be3 {[%emt 0:00:09]} Na6 {[%emt 0:03:56]} 7. Nf3 {[%emt 0:00:12]} e5 {[%emt 0:03:13]} 8. d5 {[%emt 0:00:08]} Nc5 {[%emt 0:01:07]} 9. Nd2 {[%emt 0:00:06]} a5 {[%emt 0:02:12]} 10. g4 {[%emt 0:00:13]} c6 {[%emt 0:09:35]} 11. Be2 {[%emt 0:01:34]} Bd7 {[%emt 0:06:36]} 12. h4 {[%emt 0:07:43]} a4 {[%emt 0:11:35]} 13. g5 {[%emt 0:09:01]} Ne8 {[%emt 0:00:39]} 14. h5 {[%emt 0:01:59]} cxd5 {[%emt 0:03:50]} 15. cxd5 {[%emt 0:12:33]} Qb8 {[%emt 0:10:13]} 16. b4 {[%emt 0:23:14]} axb3 {[%emt 0:03:53]} 17. axb3 {[%emt 0:00:05]} Rxa1 {[%emt 0:11:51]} 18. Qxa1 {[%emt 0:00:06]} gxh5 {[%emt 0:09:39]} 19. b4 {[%emt 0:22:05]} Na6 {[%emt 0:00:48]} 20. b5 {[%emt 0:00:21]} Nc5 {[%emt 0:01:56]} 21. b6 {[%emt 0:01:12]} f5 {[%emt 0:05:43]} 22. f3 {[%emt 0:00:47]} Qc8 {[%emt 0:01:43]} 23. Rxh5 {[%emt 0:05:21]} fxe4 {[%emt 0:02:09]} 24. fxe4 {[%emt 0:00:28]} Bg4 {[%emt 0:01:13]} 25. Rh4 {[%emt 0:00:06]} Bd7 {[%emt 0:03:36]} 26. Bc4 {[%emt 0:00:39]} Qd8 {[%emt 0:00:43]} 27. Qb1 {[%emt 0:06:23]} h6 {[%emt 0:00:21]} 28. Rh2 {[%emt 0:00:37]} hxg5 {[%emt 0:00:23]} 29. Bxc5 {[%emt 0:00:13]} dxc5 {[%emt 0:00:06]} 30. d6+ {[%emt 0:00:06]} Rf7 {[%emt 0:00:15]} 31. Bxf7+ {[%emt 0:02:25]} Kxf7 {[%emt 0:00:02]} 32. Rf2+ {[%emt 0:00:04]} Kg6 {[%emt 0:01:04]} 33. Nc4 {[%emt 0:01:16]} Be6 {[%emt 0:01:19]} 34. Qd3 {[%emt 0:00:01]} Bxc4 {[%emt 0:00:38]} 35. Qxc4 {[%emt 0:00:05]} Nxd6 {[%emt 0:00:27]} 36. Qe6+ {[%emt 0:01:20]} Bf6 {[%emt 0:00:30]} 37. Nd5 {[%emt 0:00:05]} Ne8 {[%emt 0:00:31]} 38. Qg8+ {[%emt 0:00:12]} Bg7 {[%emt 0:00:32]} 39. Qf7+ {[%emt 0:00:14]} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.13"]
[Round "9.15"]
[White "Terao, Juliana Sayumi"]
[Black "Lopes, Artur Farias"]
[Result "1-0"]
[ECO "B50"]
[WhiteElo "2225"]
[BlackElo "1995"]
[Annotator "NA"]
[PlyCount "76"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 {[%emt 0:00:00]} c5 {[%emt 0:05:27]} 2. Nf3 {[%emt 0:00:12]} d6 {[%emt 0:00:07]} 3. c3 {[%emt 0:02:41]} Nf6 {[%emt 0:00:10]} 4. Bd3 {[%emt 0:01:15]} g6 {[%emt 0:01:09]} 5. O-O {[%emt 0:00:22]} Bg7 {[%emt 0:00:03]} 6. Re1 {[%emt 0:00:31]} O-O {[%emt 0:00:15]} 7. Bf1 {[%emt 0:00:28]} e5 {[%emt 0:07:24]} 8. d4 {[%emt 0:08:50]} Bg4 {[%emt 0:02:10]} 9. dxe5 {[%emt 0:01:40]} Bxf3 {[%emt 0:00:33]} 10. Qxf3 {[%emt 0:00:06]} dxe5 {[%emt 0:00:07]} 11. Na3 {[%emt 0:00:49]} Nbd7 {[%emt 0:07:15]} 12. Bg5 {[%emt 0:03:16]} a6 {[%emt 0:01:14]} 13. Rad1 {[%emt 0:00:36]} Qc7 {[%emt 0:00:51]} 14. Nc4 {[%emt 0:19:56]} Rae8 {[%emt 0:05:14]} 15. Rd2 {[%emt 0:03:43]} b5 {[%emt 0:06:21]} 16. Ne3 {[%emt 0:00:08]} c4 {[%emt 0:07:57]} 17. Red1 {[%emt 0:03:08]} Re6 {[%emt 0:10:48]} 18. Nd5 {[%emt 0:08:16]} Qb7 {[%emt 0:15:45]} 19. g3 {[%emt 0:06:57]} Nxd5 {[%emt 0:02:44]} 20. Rxd5 {[%emt 0:00:15]} Nb6 {[%emt 0:02:14]} 21. R5d2 {[%emt 0:02:33]} f5 {[%emt 0:01:21]} 22. Bg2 {[%emt 0:01:09]} f4 {[%emt 0:04:43]} 23. Qg4 {[%emt 0:01:39]} Ree8 {[%emt 0:02:03]} 24. gxf4 {[%emt 0:01:40]} exf4 {[%emt 0:03:49]} 25. Bxf4 {[%emt 0:00:19]} Kh8 {[%emt 0:07:57]} 26. Bd6 {[%emt 0:01:25]} Rg8 {[%emt 0:00:59]} 27. e5 {[%emt 0:01:17]} Qc8 {[%emt 0:00:36]} 28. Qh4 {[%emt 0:01:08]} Qf5 {[%emt 0:01:47]} 29. Bc7 {[%emt 0:14:11]} Nc8 {[%emt 0:01:43]} 30. Rd7 {[%emt 0:02:03]} g5 {[%emt 0:00:43]} 31. Qh5 {[%emt 0:00:57]} Bxe5 {[%emt 0:00:57]} 32. Rf7 {[%emt 0:02:52]} Qc2 {[%emt 0:01:01]} 33. Bxe5+ {[%emt 0:00:52]} Rxe5 {[%emt 0:00:01]} 34. Rdd7 {[%emt 0:00:24]} Re1+ {[%emt 0:00:55]} 35. Bf1 {[%emt 0:00:05]} Rxf1+ {[%emt 0:00:36]} 36. Kxf1 {[%emt 0:00:05]} Qb1+ {[%emt 0:00:14]} 37. Kg2 {[%emt 0:00:29]} Qe4+ {[%emt 0:00:03]} 38. Qf3 {[%emt 0:00:10]} Qh4 {[%emt 0:01:12]} 1-0

[Event "III Duchamp Open 2019"]
[Site "Rio de Janeiro"]
[Date "2019.12.13"]
[Round "9.16"]
[White "Gazola, Vanessa Ramos"]
[Black "Cezila Jr, Rubens"]
[Result "0-1"]
[ECO "E12"]
[WhiteElo "1990"]
[BlackElo "2191"]
[Annotator "NA"]
[PlyCount "36"]
[EventDate "2019.12.07"]
[EventType "swiss"]
[EventCountry "BRA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 {[%emt 0:08:46]} Nf6 {[%emt 0:00:00]} 2. c4 {[%emt 0:00:00]} e6 {[%emt 0:00:00]} 3. Nf3 {[%emt 0:00:22]} b6 {[%emt 0:00:16]} 4. a3 {[%emt 0:00:30]} Ba6 {[%emt 0:00:30]} 5. Qc2 {[%emt 0:00:30]} Bb7 {[%emt 0:00:30]} 6. Nc3 {[%emt 0:00:30]} c5 {[%emt 0:00:04]} 7. Bg5 {[%emt 0:00:30]} cxd4 {[%emt 0:00:30]} 8. Nxd4 {[%emt 0:00:00]} Nc6 {[%emt 0:00:43]} 9. Nxc6 {[%emt 0:00:03]} Bxc6 {[%emt 0:00:15]} 10. e4 {[%emt 0:00:09]} h6 {[%emt 0:00:30]} 11. Bh4 {[%emt 0:02:02]} Qb8 {[%emt 0:01:37]} 12. Bd3 {[%emt 0:11:09]} Bd6 {[%emt 0:00:59]} 13. Bg3 {[%emt 0:00:53]} O-O {[%emt 0:07:43]} 14. Qe2 {[%emt 0:04:34]} Be5 {[%emt 0:08:01]} 15. O-O {[%emt 0:08:14]} d6 {[%emt 0:08:30]} 16. Rac1 {[%emt 0:09:17]} Qb7 {[%emt 0:19:24]} 17. Rfe1 Rae8 {[%emt 0:02:38]} 18. Kh1 {[%emt 0:06:43]} Nd7 {[%emt 0:00:22]} 0-1

