[Event "Magistral Osasco 2024"] [Site "Sao Paulo"] [Date "2024.03.20"] [Round "3.1"] [White "Do Valle Cardoso, Lucas"] [Black "Cubas, Jose Fernando"] [Result "1-0"] [ECO "B76"] [WhiteElo "2406"] [BlackElo "2417"] [Annotator "Stockfish 16"] [PlyCount "111"] [EventDate "2024.03.18"] [EventCountry "BRA"] {[%evp 19,111,26,73,89,88,85,78,50,58,0,0,0,0,-67,-57,-102,0,-94,-75,-170,-175, -304,-296,-296,-290,-287,-272,-288,-212,-209,-192,-345,-342,-994,-348,-333, -333,-346,-80,-385,-350,-389,-87,-81,6,-175,-100,-93,32,30,78,0,169,-29,-41, -32,100,31,70,3,2,0,2,1,3,3,3,2,2,2,3,0,191,0,90,79,482,140,200,225,304,305, 444,453,565,569,565,517,29996,29997,29997,1352,1324,701]} 1. e4 {Rogozenco,D} c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 $6 {Inaccuracy. a6 was best.} ( 5... a6 6. Be3 e5 7. Nf3 Be7 8. Bc4 O-O 9. O-O Nc6 10. Bg5) 6. Be3 Bg7 7. f3 Nc6 8. Qd2 O-O 9. O-O-O d5 10. Kb1 Rb8 ({RR} 10... Nxd4 11. e5) 11. Ndb5 { [%CAl Re4d5] B76: Sicilian Dragon: Yugoslav Attack, 9 g4 and 9 0-0-0.} ({RR} 11. Be2) ({RR} 11. h4 h5 (11... e5 $14 12. Nxc6 {[%mdl 64] Discovered Attack} bxc6) 12. Be2 (12. Bh6 $16)) 11... a6 12. Na7 (12. exd5 $6 axb5 13. dxc6 Qxd2 $11) 12... e6 13. g4 {White is better.} ({RR} 13. exd5 {13.Qf2 0.77} exd5) 13... Re8 ({RR} 13... Qc7) 14. g5 $6 {Inaccuracy. h4 was best.} (14. h4) (14. Qf2 $14) 14... Nh5 $11 ({RR} 14... Nd7 $2 {14...Nh5 0.00} 15. exd5 exd5 (15... Bxc3 $142 16. Qxc3 exd5) 16. Nxd5 Nde5 17. Bb6 Qd7 18. f4 Nf3 19. Qf2 Nfd4 20. Bc4) 15. exd5 ({RR} 15. Bf2 Bd7 16. exd5 exd5 17. Qxd5 ({RR} 17. Nxd5 Be6 $1 18. c4 ({RR} 18. Nxc6 {18.a4 -0.89} bxc6 19. Nb6 (19. Nf6+ $17 {is the only way for White.} Nxf6 20. gxf6 Qxf6 {[%mdl 64] Double Attack} 21. Bd4 Qxf3 22. Bxg7 Qxh1 23. Bc3) 19... Bd5) 18... Bf5+ 19. Ka1 ({RR} 19. Bd3 Bxd3+ 20. Qxd3 Qxg5) 19... Ra8 $1 20. Nxc6 bxc6 21. Nc3 Qa5) 17... Ne5 18. Qb3 ({RR} 18. h4 { 18.Qc5 -0.78} Be6 19. Qc5 Nd7 20. Qb4 (20. Qd6 $17)) (18. Qc5 $17) 18... Qxg5 19. Ne4 Qf4 20. Be2 Be6 21. Qa3 Nc4 22. Bxc4 Bxc4 23. Nd6 Bf8 $1 24. Rd4 Qe5 ({ RR} 24... Qg5 25. Rxc4 $2 (25. Rc1) 25... Qg2) 25. Rxc4 (25. Qa4 $142 Bxd6 26. Qxc4) 25... Bxd6 ({RR} 25... Qe2 26. Qc3 ({RR} 26. Qd3 Qxf2 27. Nxe8 Rxe8 28. Rd4 Nf4 $1 29. Qd2 Ne2) 26... Bxd6 27. Bd4 Bxh2) 26. Qd3 Bf8 27. a4 Rbd8 28. Qb3 Qd5 29. Rc3 Qd2 {Nisipeanu,L (2672)-Carlsen,M (2813) Medias 2010 CBM 137 [Rogozenco,D] 0-1 (31)} {RR} 30. Rc7) ({RR} 15. Nxc8 {15.Na4 0.00} d4 $1 ({RR} 15... Rxc8 {15...d4 -0.49} 16. exd5 exd5 (16... Bxc3 $16 17. Qxc3 Na5) 17. Nxd5 ) 16. Bf2 Rxc8 17. Ne2) 15... exd5 16. Nxd5 $6 {Inaccuracy. Nxc8 was best.} ( 16. Nxc8 d4 $1 17. Bf2 Qxc8 18. Ne4 Qe6 19. Bd3 Rbd8 20. Bg3 Qd7 21. Rde1 Ne7 22. Nf2 Nd5) (16. Nxc8 $11 d4 17. Ne4) 16... Be6 $1 $15 17. c4 Bf5+ $146 { Mistake. Qd7 was best.} (17... Qd7 $1) ({RR} 17... Bxd5 $2 {17...Qd7 -0.99} 18. cxd5 Ne5 19. Be2 Qe7 (19... Qd7 $14) 20. Rhe1 Nd7 21. Bc4 Qd6 22. Qf2 (22. Bb3 $16) 22... Ra8 23. Bb3 Be5 (23... Bf8 $11) 24. Re2 (24. Ba4 $1 $16) 24... Bxh2 $2 (24... Bf4 $1 $11) 25. Rc2 $2 (25. Qxh2 $18 Qxh2 26. Rxh2 Rxe3 27. Rc2) 25... Bf4 26. Bxf4 Nxf4 27. Rc4 Nb6 $2 (27... Nh3 $11 {and Black is okay.} 28. Qh4 Nxg5 29. Qxg5 Rxa7) 28. Rxf4 $1 Qxf4 29. Qxb6 Qb8 30. Qf6 $1 Qd8 31. Qd4 $1 Qd6 32. Rh1 {Dastan,B (2370)-Arngrimsson,D (2384) Budapest 2012 1/2-1/2 (37)} ( 32. a3 $18)) ({RR} 17... Bxd5 {17...Qd7 -1.06} 18. cxd5 Ne5 19. Be2 (19. d6 $1 $16) 19... Qe7 (19... Qd7 $1 $11) 20. Rhe1 Nd7 21. Bc4 Qd6 22. Qf2 (22. Bb3 $16 ) 22... Ra8 23. Bb3 Be5 (23... Bf8 $11) 24. Re2 (24. Ba4 $16) 24... Bxh2 $2 ( 24... Bf4 $1 $11) 25. Rc2 $2 (25. Qxh2 $16 Qxh2 26. Rxh2 Rxe3 27. Rc2) 25... Bf4 26. Bxf4 Nxf4 27. Rc4 Nb6 $2 (27... Nh3 $11 {and Black has nothing to worry.} 28. Qh4 Nxg5 29. Qxg5 Rxa7) 28. Rxf4 $1 Qxf4 29. Qxb6 Qb8 30. Qf6 $1 Qd8 31. Qd4 Qd6 32. Rh1 $2 {Dastan,B (2370)-Arngrimsson,D (2384) Budapest 2012 1/2-1/2 (37)} (32. a3 $18)) ({RR} 17... Qd7 $1 18. Be2 Bf5+ 19. Ka1 Rxe3 (19... Ra8 $17 20. f4 Ne7) 20. Qxe3 Re8 21. Qf2 Nxa7 (21... Bd4 $11 {remains equal.} 22. Rxd4 Nxd4 23. Qxd4 Rxe2) 22. Nf6+ (22. f4 $1 $16) 22... Nxf6 23. gxf6 Qa4 ( 23... Qe6 $11 24. fxg7 Qxe2 25. Qxa7 Qxc4 26. Qxb7 Be6) 24. fxg7 Nc6 25. b3 Qa5 {[%CAl Ra5c3]} 26. Bd3 Nb4 (26... Bxd3 $142 27. Rxd3 Qe5+ 28. Qb2 Qxb2+ 29. Kxb2 Re2+ 30. Kc3 Rxa2) 27. Bxf5 Qxf5 28. a3 $1 {[%CAl Ra3b4]} Nd3 29. Qd4 Nc5 30. Qc3 b6 31. Rhe1 {[%CAl Re1e8]} Rc8 32. Rd6 {Barski,R (2290)-Pavlidis,A (2359) Chotowa 2010 1-0 (34)}) (17... Qd7 $1 $17) ({Predecessor:} 17... Bxd5 18. cxd5 Ne5 19. Be2 Qe7 20. Rhe1 Nd7 21. Bc4 Qd6 22. Qf2 Ra8 23. Bb3 Be5 { 1/2-1/2 (37) Dastan,B (2370)-Arngrimsson,D (2384) Budapest 2012}) 18. Ka1 $6 { Inaccuracy. Bd3 was best.} (18. Bd3 Qd7) (18. Bd3 $11) 18... Qd7 19. Bb6 $6 { Inaccuracy. Bd3 was best.} (19. Bd3 Ne5) (19. Bd3 $17) 19... Ra8 $19 20. Qf2 $6 {[#] Inaccuracy. Bd3 was best.} (20. Bd3 Nxa7 21. Bxf5 Qxf5 22. Bxa7 Rxa7 23. Rhe1 Raa8 $1 24. Ne7+ Rxe7 $1 25. Rxe7 Nf4 26. Rxb7 Qxg5) (20. Bd3 {is a better defense.} Nxa7 21. Nc7) 20... Nb4 $1 {[%mdl 576] White must now prevent ...Qa4. Pin} 21. Bh3 (21. Nxb4 Qxd1#) 21... Bxh3 22. Nxb4 Qa4 23. Qd2 a5 24. Nd5 Qxc4 25. Qxa5 $6 {Inaccuracy. Rc1 was best.} (25. Rc1 Re2) (25. Rc1 $142 Re2 26. Rxc4 Rxd2 27. Nc3) 25... Re2 26. Rd2 $4 {[#] Blunder. Nc3 was best.} ( 26. Nc3 Bxc3 27. Qxc3 Qxc3 28. bxc3 Be6 29. a4 Ra2+ $1 30. Kb1 Rxa4 31. Rhe1 R4xa7 32. Bxa7 Rxa7) (26. Nc3 $142 Bxc3 27. Qxc3 Qxc3 28. bxc3) 26... Rxd2 $4 { Blunder. Bf1 was best.} (26... Bf1 27. Rxf1 Rxd2 {[%CAl Rc4f1]} 28. Qb5 Bxb2+ 29. Qxb2 Qxf1+ 30. Qb1 Rd1 {[%csl Gf1][%CAl Rd1b1]} 31. Nc3 Rxb1+ 32. Nxb1 h6 33. h4) (26... Bf1 $142 $1 {[%mdl 512] ( -> ...Qc1#)} 27. Rxf1 Rxd2) 27. Qxd2 Be6 $1 {[%CAl Re6d5]} 28. Rd1 Qa6 $4 {Blunder. Re8 was best.} (28... Re8 29. Nc3 Qa6 30. Bf2 Bxc3 31. bxc3 Nf4 32. h4 Ra8 33. Bd4 Bc4 34. Rb1 h5 35. gxh6) ( 28... Re8 $19 {is more deadly. Threatens to win with ...Bxd5.} 29. Nc3 Bxc3 30. bxc3 Nf4) 29. Be3 $4 {Blunder. Qd3 was best.} (29. Qd3 Qa4) (29. Qd3 $17) 29... Re8 (29... b6 30. Bxb6 Rb8 31. Nc6 $17) 30. Nc3 Bc4 $4 {Blunder. Bxc3 was best. } (30... Bxc3 31. bxc3 Bc4 32. Re1 Nf4 33. Bf2 Ra8 34. Re7 Ne6 35. Be3 Rd8 36. Rxe6 Rxd2 {[%csl Gc4,Gd2][%CAl Ra6a2]} 37. Rxa6) (30... Bxc3 $19 31. bxc3 Bc4) 31. a3 $17 b5 $2 {Mistake. Qa5 was best.} (31... Qa5) (31... Qa5 $17 {Hoping for ...Bxc3.} 32. Bg1 Qf5) 32. Kb1 $2 {Mistake. Bc5 was best.} (32. Bc5 Bxc3 33. Qxc3 Qe6 $1 34. b3 Bxb3 35. Rd4 Ba4 36. Re4 Qd7 $1 37. Rxe8+ Qxe8 38. Be3 Qd7) (32. Bc5 $11 {and White stays safe.}) 32... Qe6 ({Black should try} 32... Bf8 $19 33. Ne4 b4) 33. Ne4 Ba2+ $2 {Mistake. f5 was best.} (33... f5) (33... f5 $17 34. Nd6 Qxe3 {[%mdl 64] Double Attack} 35. Nxe8 Qxe8) 34. Ka1 $14 Bb3 35. Rc1 $6 {Inaccuracy. Nxb5 was best.} (35. Nxb5) ({Better is} 35. Nxb5 $16 Qc6 36. Nd4 Bxd4 37. Qxd4) 35... Qa6 $2 {Mistake. Bc4 was best.} (35... Bc4) ( 35... Bc4 $11) 36. Qb4 $4 {Blunder. Bd4 was best.} (36. Bd4 Bf8 37. Rc6 Qb7 38. Bc5 $1 Qb8 (38... Bxc5 $16 {was called for.} 39. Nxc5 Qxa7 40. Nxb3 Qa8) 39. Rb6 Qd8 40. Qxd8 $1 Rxd8 {[%CAl Rd8d1]} 41. Bd6 h6 42. Nc6 Rxd6 $2 (42... Re8)) (36. Bd4 $18) 36... Bc4 $11 37. Rd1 $1 Ra8 $2 {Mistake. Be2 was best.} (37... Be2 38. Rd6) (37... Be2 $15 {keeps the upper hand.} 38. Re1 (38. Rd6 Qa4 $15) 38... Bf8) 38. Rd7 $6 {Inaccuracy. Qe7 was best.} (38. Qe7) (38. Qe7 $16 { Intending Rd8+ and mate.} Qa5 39. Bc5) 38... Bf8 39. Bc5 ({White should play} 39. Qd2 $1 $14 b4 40. Nc5) 39... Be6 $132 {[%mdl 2048] Black is not keeping still} 40. Rc7 {With the idea Bxf8.} Rd8 {[%CAl Rd8d1]} 41. Kb1 {aiming for Bxf8.} Bxc5 $1 42. Nxc5 Rd1+ 43. Kc2 Qd6 44. Nxb5 Qd5 {Strongly threatening ... Bf5+.} 45. Qc3 Rf1 $2 {Mistake. Bf5+ was best.} (45... Bf5+ 46. Ne4 $1 Rh1 { [%csl Gh1][%CAl Rd5d1]} 47. Qd2 Qxb5 48. Qd8+ Kg7 49. Qd4+ Kg8 50. Qd8+) (45... Bf5+ $11 46. Ne4 Rh1 47. Rc8+ Bxc8 48. Qxc8+ Kg7 49. Qc3+ Kg8 50. Qc8+ Kg7 51. Qc3+ Kg8 52. Qc8+) 46. Qd4 $2 {Mistake. Nd4 was best.} (46. Nd4 $1 Qxg5 47. Nd3 $1 Qe3 48. Nxe6 {[%CAl Rc7c8]} Qe2+ 49. Kb3 $1 {[%CAl Rc7c8]} Qxe6+ 50. Qc4 Qb6+ 51. Ka2 Rxf3 52. Rd7 h6) (46. Nd4 $1 $18 Rf2+ 47. Kd1 Rxf3 48. Qxf3 Qxd4+ {[%mdl 64] Double Attack} 49. Kc2 Qc4+ 50. Kb1 Qa2+ 51. Kc2 Qc4+ 52. Kb1 Qa2+ 53. Kc2 Qc4+) 46... Bf5+ $6 {[#] Inaccuracy. Qf5+ was best.} (46... Qf5+ $1 47. Qe4 Rf2+ 48. Kd1 Rf1+) ({Of course not} 46... Qxg5 $6 47. Nxe6 Qf5+ 48. Qd3 $16 ) (46... Qf5+ $1 $11 47. Qe4 Rf2+ 48. Kd1 Rf1+ 49. Kc2 (49. Ke2 $2 Bc4+ { [%mdl 64] Double Attack} 50. Ke3 Re1+ {[%mdl 64] Skewer} 51. Kd4 Rxe4+ 52. fxe4 Qf1 $19) 49... Rf2+ 50. Kd1 Rf1+ 51. Kc2 (51. Ke2 $2 Bc4+ {[%mdl 64] Double Attack} 52. Ke3 Re1+ {[%mdl 64] Skewer} 53. Kd4 Rxe4+ 54. fxe4 Qf1 $19)) 47. Kd2 $1 $16 Qa8 $4 {Blunder. Rf2+ was best.} (47... Rf2+ 48. Ke1 Qxd4 49. Nxd4 Rxb2 50. a4 Ra2 51. h4 Nf4 52. Kd1 h6 53. gxh6 Nd5 $1 54. h7+) (47... Rf2+ $16 {is more resistant.} 48. Ke1 Qxd4 49. Nxd4 Rxb2) 48. Nb7 $2 {Mistake. Re7 was best.} (48. Re7 Rf2+ 49. Qxf2 Qd8+ 50. Qd4 Qxe7 51. h4 Ng3 52. Nd6 Nf1+ 53. Kd1 Ng3 54. Nde4 Nxe4) (48. Re7 $18 {and White stays clearly on top.}) 48... Rxf3 $6 {Inaccuracy. Rh1 was best.} (48... Rh1) (48... Qe8 $16 49. Qd8 Rf2+ 50. Kd1 Rf1+ 51. Kd2 Rf2+ 52. Kc3 Rxf3+ 53. Kb4 Qxd8 54. Nxd8 f6) 49. N5d6 $18 Be6 $4 { Blunder. Qb8 was best.} (49... Qb8) 50. Re7 {Re8+ is the strong threat.} Ng7 { [#]} (50... Rf4 {keeps fighting.} 51. Qe3 Qa4) 51. Ne4 $1 Nf5 $6 {Inaccuracy. Ne8 was best.} (51... Ne8 52. Nbd6) 52. Nf6+ Kf8 53. Nxh7+ Kxe7 $4 {Checkmate is now unavoidable. Kg8 was best.} (53... Kg8 54. Nf6+ Kg7 55. Re8 Nxd4 56. Rxa8 {[%csl Gf6][%CAl Ra8g8]} Nb3+ 57. Ke1 {[%csl Gf6][%CAl Ra8g8]} Rxf6 58. gxf6+ Kxf6 59. Nd8 Bd5 60. Ra7) (53... Kg8 $18 54. Nf6+ Kg7) 54. Qc5+ Nd6 55. Qxd6+ $2 {Lost forced checkmate sequence. Qc7+ was best.} (55. Qc7+ Bd7 56. Qxd6+ Ke8 57. Qf8#) (55. Qc7+ $142 Bd7 56. Qxd6+ Ke8 57. Qf8#) 55... Ke8 56. Qf8+ {Precisão Chessbase: Brancas 42%, Pretas 43% Precisão Lichess.org: Brancas 84%, Pretas 80% Precisão Chess.com: Brancas 76.8%, Pretas 70.3%.} 1-0 [Event "Magistral Osasco 2024"] [Site "Sao Paulo"] [Date "2024.03.20"] [Round "3.2"] [White "Di Berardino, Diego Rafael"] [Black "Valderrama Quiceno, Esteban Alb"] [Result "0-1"] [ECO "E48"] [WhiteElo "2497"] [BlackElo "2428"] [Annotator "Stockfish 16"] [PlyCount "128"] [EventDate "2024.03.18"] [EventCountry "BRA"] {[%evp 11,128,-4,-1,0,-1,-7,-2,-6,-5,-15,2,7,41,36,56,33,35,-21,0,-4,77,73,137, 91,115,54,60,58,58,62,161,65,123,64,85,63,77,69,104,124,114,34,70,0,0,0,0,-67, -65,-55,-37,-43,-29,-83,-47,-86,-85,-98,-85,-89,-42,-59,-72,-74,-14,-102,-87, -127,-129,-124,-9,-6,-2,-2,-2,-6,-3,-3,-3,-5,0,0,0,0,0,-5,-6,-5,-6,-10,0,-246, -236,-314,-340,-335,-300,-264,-301,-310,-285,-294,-305,-285,-136,-237,-244, -321,-326,-320,-311,-312,-315,-359,-343,-375,-321,-641,-641]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. cxd5 exd5 7. a3 {E48: Nimzo-Indian: Rubinstein: 5 Bd3 d5 including 6 Ne2, but excluding 6 a3.} Bd6 8. Qc2 c6 9. Nge2 {The position is equal.} Re8 10. Bd2 a5 11. O-O Nbd7 $6 {Inaccuracy. Na6 was best.} (11... Na6 12. Ng3 h6 13. Rad1 Bd7 14. h3 Nc7 15. e4 Nxe4 16. Ngxe4 dxe4 17. Bxe4 Be6 18. Rfe1) 12. f3 c5 13. Nb5 Bf8 14. Ng3 $146 ({RR} 14. b3 b6 15. g4 a4 16. bxa4 c4 17. Bf5 g6 18. g5 gxf5 19. gxf6 Nxf6 20. Ng3 f4 21. exf4 Bd7 22. Nc3 b5 (22... Kh8 $14) 23. axb5 Rxa3 24. Kh1 (24. Rxa3 $16 Bxa3 25. Ra1 ) 24... Qb6 ({Black should try} 24... Rxa1 $1 $14 25. Rxa1 Qb6) 25. Rxa3 Bxa3 26. Rg1 Kh8 27. f5 $1 Rg8 (27... Be7 $16) 28. Bf4 $1 {[%CAl Rf4e5]} Qxd4 { Ivanisevic,I (2601)-Sjugirov,S (2680) Belgrade SRB 2022 0-1 (69)} (28... Bd6 $142 29. Qd2 Ne8)) (14. Nec3 $14) ({Predecessor:} 14. b3 b6 15. g4 a4 16. bxa4 c4 17. Bf5 g6 18. g5 gxf5 19. gxf6 Nxf6 20. Ng3 {0-1 (69) Ivanisevic,I (2601) -Sjugirov,S (2680) Belgrade 2022}) 14... Qb6 15. b3 a4 $6 {Inaccuracy. Nb8 was best.} (15... Nb8 16. dxc5 Bxc5 17. Rfc1 Na6 $1 18. Nd4 Bxd4 19. exd4 Qxd4+ 20. Kh1 Qb6 21. Ne2 Bd7 22. Qb2) (15... Nb8 $11 {remains equal.}) 16. bxa4 $16 Rd8 $6 {Inaccuracy. c4 was best.} (16... c4 17. Be2 h5 18. h4 Bd6 19. Be1 Nf8 20. Nxd6 Qxd6 21. Bf2 Qe7 22. Rfe1 Bd7 23. e4) (16... h5 $142) 17. Kh1 $6 { Inaccuracy. Rab1 was best.} (17. Rab1 Qc6 18. Rfc1 h5 19. h4 Nb6 20. a5 Nc4 21. Bxc4 dxc4 22. e4 cxd4 23. Qxc4 Qxc4) 17... Qc6 18. Rab1 $6 {Inaccuracy. Rfc1 was best.} (18. Rfc1 h5) (18. Rfc1 $16) 18... cxd4 $14 19. exd4 {Black must now prevent Qb3.} Qxc2 20. Bxc2 g6 $6 {Inaccuracy. Ne8 was best.} (20... Ne8 21. Bb4 g6 22. Rfe1 Ndf6 23. Ne2 Bd7 24. Nec3 Ng7 25. Kg1 Bc6 26. Kf2 Nfe8 27. h4) (20... Nb6 $14) 21. a5 $2 {Mistake. Nc7 was best.} (21. Nc7 Ra7 22. Ne2 b6 23. Nb5 Rb7 24. Rfc1 Nb8 25. Bg5 Kg7 26. g4 Bd7 27. Nec3 Be6) (21. Nc7 $18 Ra7 22. Nb5) 21... h6 $6 {Inaccuracy. b6 was best.} (21... b6 22. axb6 Nxb6 23. Bg5 Bg7 24. Nc7 Ra7 25. Rxb6 Rxc7 26. Bb3 Rb7 27. Rxb7 Bxb7 28. Rc1) (21... b6 $14) 22. Bd3 $6 {Inaccuracy. Nc7 was best.} (22. Nc7 Ra7 23. f4 b6 24. Nb5 $1 { [%CAl Rb5a7]} Ra6 25. f5 g5 26. Nc7 Ra7 27. Ne6 fxe6 28. fxe6 bxa5) (22. Nc7 $16 Ra7 23. Kg1) 22... Nb8 $1 23. Bf4 Nc6 24. Bc7 Re8 25. Bb6 $1 Re3 26. Rfd1 $6 {Inaccuracy. Nc7 was best.} (26. Nc7 Rb8) ({Better is} 26. Nc7 $16) 26... Ne8 27. Rbc1 $6 {Inaccuracy. Nc3 was best.} (27. Nc3 Nf6) (27. Nc3 $14) 27... Bd7 $11 28. Nf1 Re6 29. Re1 $6 {Inaccuracy. Nc3 was best.} (29. Nc3 Nf6 30. Nb5 Ne8 31. Nc3) (29. Nc3 $11) 29... Nxa5 $15 30. Rxe6 Bxe6 31. Nd2 Nc6 32. Nb3 Nd6 (32... Bxa3 {with more complications.} 33. Nxa3 Rxa3 34. Rb1 Ra2 35. Nc5 Bc8) 33. Nxd6 Bxd6 34. Nc5 Rxa3 35. Bxg6 Nxd4 $6 {Inaccuracy. fxg6 was best.} (35... fxg6 36. Nxe6) 36. Nxe6 Nxe6 37. Bf5 Be5 (37... Kg7 $17) 38. h4 $6 {Inaccuracy. Rd1 was best.} (38. Rd1 Kg7) (38. Rd1 $11 {keeps the balance.}) 38... Kg7 $17 39. Rd1 Kf6 40. Bg4 Nf4 $2 {Mistake. Bg3 was best.} (40... Bg3 41. f4 Rb3 42. Ba7 Nxf4 43. Bd4+ Kg6 $1 44. Bf3 Kf5 (44... f6 $19 45. Bc5 b5) 45. Bg7 Rb6 46. Bc3 (46. Rf1 $17) 46... Rb5 (46... Bxh4 $19 47. Bd2 Bg3 48. Bxf4 Kxf4 49. Bxd5 f5) 47. Bg7) ({Black should play} 40... Bg3 $17 41. Kg1 Ke5 42. Bxe6 Kxe6) 41. g3 $1 $11 {[%CAl Rg3f4]} Ne2 42. Rxd5 {And now Bd8+ would win.} Nxg3+ 43. Kg1 $132 {[%mdl 2048] White has counterplay} Ra1+ 44. Kf2 {aiming for Bd8+.} Ra2+ 45. Ke1 {Bd8+ is the strong threat.} Bf4 46. Bd4+ Ke7 47. Rd7+ {[%mdl 64] Double Attack} Kf8 {Threatens to win with ...f5.} (47... Ke8 $5 48. Bf6 $8 Ra8 $14) 48. Bf6 {[%CAl Rd7d8]} Re2+ 49. Kd1 Re8 50. Bd4 b5 51. Kc2 $4 {Blunder. Rd5 was best.} (51. Rd5) (51. Rd5 $11 {and White has nothing to worry.}) 51... f5 $19 52. Bh3 Re2+ 53. Kb3 Rh2 54. Bc5+ Kg8 55. Rd4 Bc7 ({Less strong is} 55... Rxh3 56. Rxf4 Kf7 57. Kc2 $17) 56. Rd7 Ba5 ({Not} 56... Rxh3 57. Rxc7 Ne4 58. Bd4 $17) 57. Ra7 {[#]} Be1 $6 {Inaccuracy. Bd2 was best.} (57... Bd2 $1 58. Rd7 Rxh3 59. Rxd2 Ne4 $1 60. Rd8+ Kf7 61. Rf8+ Ke6 62. Bd4 Nd2+ 63. Kc2 Nxf3 64. Rf6+ (64. Bb2 $142)) (57... Bd2 $1 $19 58. Rd7 Rxh3 59. Rxd2 Ne4 {[%mdl 64] Double Attack} 60. Rd8+ Kf7 61. Rf8+ Kg6) 58. Ra1 $6 {Inaccuracy. Ra8+ was best.} (58. Ra8+ Kg7 59. Ra7+ Kf6 60. Ra6+ Kf7 61. Ra7+ Ke6 62. Re7+ Kd5 63. Rxe1 Rxh3 64. Be3 Rxh4) (58. Ra8+ $17 Kf7 59. Ra7+ Ke6 60. Re7+ Kd5 61. Rxe1) 58... Bd2 ({Don't do} 58... Rxh3 59. Rxe1 Ne4 60. Kb4) 59. Bf1 Nxf1 60. Rxf1 Rxh4 61. Rd1 Bg5 62. Rd5 Rf4 63. Rd3 Kf7 64. Kc2 $2 {Mistake. Bd6 was best.} ( 64. Bd6 Rh4 65. Bb8 Be7 66. Rd7 Rh3 67. Kc2 Kf6 68. Rb7 Rxf3 69. Rxb5 Kg5 70. Rb7 Bf6) (64. Bb4 $142) 64... Rc4+ {Precisão Chessbase: White = 55%, Black = 67%. Precisão Lichess.org: White = 90%, Black = 93%. Precisão Chess.com: White = 85.6%, Black = 90.1%.} 0-1 [Event "Magistral Osasco 2024"] [Site "Sao Paulo"] [Date "2024.03.20"] [Round "3.3"] [White "De Carvalho, Vitor Augusto Ponci"] [Black "Molina, Roberto Junio Brito"] [Result "0-1"] [ECO "B86"] [WhiteElo "2134"] [BlackElo "2376"] [Annotator "Stockfish 16"] [PlyCount "111"] [EventDate "2024.03.18"] [EventCountry "BRA"] {[%evp 15,111,-19,-17,-12,-14,-33,-20,-21,89,91,166,13,10,4,11,3,20,16,19,21, 33,-10,0,0,0,0,-1,-9,-7,-26,-28,-53,-34,-63,-61,-61,-63,-62,-58,-63,-58,-363, -402,-370,-309,-338,-301,-315,-10,-13,-16,-31,-15,-4,0,-14,0,0,0,0,5,-82,-82, -117,-15,-13,0,-405,-407,-402,-335,-399,0,0,0,-4,0,-124,-110,-124,-85,-86,-60, -9605,-6851,-3797,-3794,-29986,-29985,-29988,-29985,-29994,-29995,-29997, -29996,-29996,-29997,-29997]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 $6 {Inaccuracy. g4 was best.} (6. g4 h6 7. h4 Nc6 8. Rg1 d5 9. exd5 Nxd5 10. Nxd5 exd5) 6... a6 7. Bb3 Nbd7 8. Bg5 Nc5 9. f4 {B86: Sicilian Scheveningen/Najdorf: 6 Bc4, without early ...b5.} Be7 10. Qf3 h6 11. Bh4 { The position is equal.} g5 $6 {Inaccuracy. Qc7 was best.} (11... Qc7) (11... O-O $11 {keeps the balance.}) 12. fxg5 $16 Nfd7 $6 {Inaccuracy. hxg5 was best.} (12... hxg5 13. Bxg5 Nfd7 14. Bxe7 Qxe7 15. O-O-O $1 b5 16. Nc6 Qg5+ 17. Kb1 Bb7 18. Na5 $1 {[%CAl Ra5b7]} Qf6 19. Nxb7) (12... hxg5 $16 13. Bxg5 Nfd7 14. Bxe7 Qxe7) 13. O-O $4 {Blunder. Qh5 was best.} (13. Qh5 Bxg5 14. O-O {[%csl Gf1][%CAl Rh5f7]} O-O 15. Nf5 exf5 16. Rxf5 Nf6 17. Rxg5+ Kh7 18. Rd5 Nxh5 19. Bxd8 Be6) (13. Qh5 $18) 13... Ne5 $11 14. Qh5 Nxb3 $146 ({RR} 14... Bxg5 $2 { 14...Ng6 0.00} 15. Bg3 Be3+ 16. Kh1 Qg5 17. Qd1 Qd8 (17... Bxd4 {might work better.} 18. Qxd4 Qe7) 18. Nf3 $1 {[%CAl Rf3e5]} Qc7 19. Qe2 Bg5 20. Rad1 Ncd7 $2 (20... Bf6 21. Nxe5 Bxe5 22. Bxe5 dxe5) 21. Nxg5 hxg5 22. Qd2 b5 (22... Rg8 $142 23. Qxd6 Qxd6 24. Rxd6 Ke7) 23. Qxd6 $2 (23. Qxg5 $18 {and White stays clearly on top.} Bb7 24. Rd4) 23... Qxd6 24. Rxd6 Ke7 $1 25. Rfd1 Bb7 26. a3 Rac8 27. R6d4 Rhd8 28. a4 Bc6 29. axb5 {Bezemer,A (2320)-Sutovsky,E (2658) Amsterdam 2002 1/2-1/2 (44)}) ({RR} 14... Bxg5 $2 {14...Ng6 0.00} 15. Nf3 (15. Bg3 $18 Qe7 16. Nf3) 15... Nxf3+ (15... Ng6 $16) 16. Rxf3 {[%csl Gf3][%CAl Rh5f7]} Rh7 17. Raf1 Bxh4 $2 (17... Qe7 {was called for.}) 18. Rxf7 {[%CAl Rf7h7]} Qg5 19. Qxg5 Bxg5 20. Rxh7 Nd7 (20... Be3+ $142 21. Kh1 Bd4) 21. Bxe6 Nf8 22. Rh8 {1-0 (22) Mehmed,E (1988)-Nikolaou,S (2201) Veliko Gradiste SRB 2018}) ({RR} 14... Bxg5 $2 {14...Ng6 0.00} 15. Bg3 Be3+ 16. Kh1 Qg5 17. Qd1 Qd8 (17... Bxd4 {was necessary.} 18. Qxd4 Qe7) 18. Nf3 Qc7 19. Qe2 Bg5 20. Rad1 Ncd7 $2 (20... Bf6 21. Nxe5 Bxe5 22. Bxe5 dxe5) 21. Nxg5 hxg5 22. Qd2 (22. Rd4 $142) 22... b5 (22... Rg8 $142 23. a4 b6 24. Qxd6 Qxd6 25. Rxd6 Ke7) 23. Qxd6 $2 (23. Qxg5 $18 Bb7 24. Rd4) 23... Qxd6 24. Rxd6 Ke7 $1 25. Rfd1 Bb7 26. a3 Rac8 27. R6d4 Rhd8 28. a4 Bc6 29. axb5 {Bezemer,A (2320)-Sutovsky,E (2658) Amsterdam 2002 1/2-1/2 (44)}) ({Predecessor:} 14... Qb6 15. Kh1 Bd7 16. gxh6 Qd8 17. Bg3 Rh7 18. Rad1 Qb6 19. Nf5 exf5 20. Nd5 Qd8 21. exf5 {0-1 (39) Mustaps,M (2353)-Mammadov,S (2640) Chess.com INT 2018}) 15. axb3 {Hoping for Bg3.} Ng6 $1 {[%CAl Rh6g5]} 16. Qf3 Rh7 17. Bg3 hxg5 18. Rad1 Qa5 19. Qe3 Ne5 20. Nf3 Bd7 21. Kh1 {Bxe5 is the strong threat.} f6 22. Nxe5 dxe5 23. Bf2 Bc6 24. Bg1 Rd8 25. Qe2 Rxd1 26. Rxd1 Kf7 27. Bf2 Qc7 28. Nd5 $4 {Blunder. Nb1 was best.} (28. Nb1 f5 29. Nd2 g4 30. Bg3 Bf6 31. Nc4 f4 32. Be1 g3 33. h3 Bb5 34. Bb4 Be7 ({Black should try} 34... Rh8 $17)) (28. Nb1 $15) 28... exd5 $19 29. exd5 e4 {[%csl Gh7][%CAl Rc7h2]} 30. h4 Qf4 ({Don't take} 30... Bd7 31. Qxe4 Rh8 32. Kg1) 31. g3 Qf5 $4 {Blunder. Bb5 was best.} (31... Bb5 32. c4 Qf5 33. cxb5 Bd6 34. g4 Qe5 {[%csl Gd6][%CAl Re5h2]} 35. Be1 gxh4 36. Bc3 (36. bxa6 $142 bxa6 37. Bc3) 36... Qg3 37. Qg2 Rg7 38. Qxg3) ({Black should play} 31... Bb5 $19 32. c4 Qe5 33. cxb5 gxh4) 32. dxc6 $11 bxc6 {aiming for ...Qh3+.} 33. g4 Qe5 34. h5 f5 35. Qc4+ Qe6 36. gxf5 Qxc4 37. bxc4 {[%mdl 4096] Endgame KRB-KRB} Kf6 38. Ra1 $6 {Inaccuracy. Rd7 was best.} (38. Rd7 Rxh5+) (38. Kg2 $11) 38... Kxf5 $17 39. Rxa6 Rxh5+ $6 {Inaccuracy. Bd6 was best.} (39... Bd6) ( 39... Bd6 $1 $17 40. Kg2 Rxh5) 40. Kg2 $11 Bd6 41. Rxc6 $4 {Blunder. Bg3 was best.} (41. Bg3 $1 {[%CAl Rg3d6]} Bxg3 42. Kxg3 e3 43. Ra7 Rh1 44. Kf3 Rh3+ 45. Ke2 Ke4 46. Re7+ Kd4 47. c3+ Kxc4) (41. Bg3 $1 $11 {and White is okay.} Bxg3 42. Kxg3) 41... Rh2+ $19 42. Kg1 Bf4 43. Ra6 {[#]} Kg4 $4 {Blunder. Rh3 was best.} (43... Rh3 $1) (43... Rh3 $1 $19 {And now ...e3 would win.} 44. Be1 e3) 44. Ra3 $1 $11 Rh8 45. c5 Rd8 46. c6 $2 {[#] Mistake. b4 was best.} (46. b4 Re8 47. Be3 $1 Rb8 48. c6 Rxb4 49. Bxf4 gxf4 50. Rc3 $1 e3 51. c7 Kg3 {[%CAl Rb4b1] } 52. Kf1 Kf3) (46. b4 $11 {remains equal.}) 46... Rd1+ $1 $17 47. Kg2 Rd2 { White must now prevent ...e3.} 48. Kf1 Rxc2 {[%mdl 64] Double Attack} 49. Rc3 $4 {Blunder. b4 was best.} (49. b4 Rxc6) (49. b4 $15) 49... Rxc3 $19 50. bxc3 { KB-KB} Kf3 51. c4 e3 {Black mates.} 52. Be1 Bh2 {[%csl Gf3][%CAl Re3e2]} 53. Bf2 $2 {Checkmate is now unavoidable. Bc3 was best.} (53. Bc3 e2+ 54. Ke1 Bg3+ 55. Kd2 e1=Q+ 56. Kc2 Qe4+ 57. Kb3 Qxc6 58. Bd4 Bf2 59. Be5 Qb6+) 53... exf2 54. c5 Ke3 55. Kg2 Ke2 56. Kxh2 {Precisão Chessbase: White = 60%, Black = 78%. Precisão Lichess.org: White = 86%, Black = 91%. Precisão Chess.com: White = 82.8%, Black = 87.2%.} 0-1 [Event "Magistral Osasco 2024"] [Site "Sao Paulo"] [Date "2024.03.20"] [Round "3.4"] [White "Quintiliano, Renato R."] [Black "Fier, Alexandr"] [Result "0-1"] [ECO "E46"] [WhiteElo "2483"] [BlackElo "2561"] [Annotator "Stockfish 16"] [PlyCount "124"] [EventDate "2024.03.18"] [EventCountry "BRA"] {[%evp 13,124,0,2,2,28,14,16,18,25,28,20,12,28,22,13,-3,0,-1,6,1,8,8,5,-13,-13, -8,-9,-64,-75,-70,-1,-51,-54,-47,-56,-276,-138,-231,-224,-265,-161,-171,-146, -144,-179,-179,-173,-143,-108,-176,-178,-192,-193,-199,-208,-209,-200,-243, -247,-243,-247,-245,-244,-317,-243,-274,-229,-301,-301,-301,-301,-351,-355, -544,-390,-403,-398,-421,-301,-407,-9,-11,-10,-50,-55,-439,-439,-449,-465,-428, -390,-385,-363,-499,-485,-484,-479,-461,-458,-638,-622,-683,-654,-618,-626, -609,-605,-700,-675,-3587,-3590,-3157,-560]} 1. d4 {https://lichess.org/@/ loepare} Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 d5 6. Nf3 b6 7. cxd5 exd5 8. Rc1 {E51: Nimzo-Indian: Rubinstein: 4...0-0 5 Nf3 d5.} a6 $146 ({RR} 8... Bb7 9. Bd3 Re8 10. Ne5 Bf8 11. O-O c5 12. f4 Nc6 13. Ne2 Ne4 14. Ng3 Nxg3 15. hxg3 g6 16. g4 Rc8 17. g5 cxd4 18. exd4 Nxd4 19. Rxc8 Qxc8 (19... Bxc8 $15 20. a3 Bd7) 20. Bc3 Bc5 21. Kh2 Nf5 22. Ng4 $2 {[%mdl 8192]} (22. Bxf5 $1 $16 { is forced if you want to stay better.} gxf5 23. Qh5 Rxe5 24. Bxe5) 22... Ne3 $1 23. Nf6+ {Ter Sahakyan,S (2640)-Fiorito,J (2409) chess.com INT 2024 1-0 (40)}) ({RR} 8... Re8 9. Bd3 Bb7 10. O-O a6 (10... Bf8 $11) 11. Ne5 Bd6 12. f4 c5 13. Ne2 Nc6 14. Ng3 Bf8 (14... Rc8 $11 {keeps the balance.}) 15. Bc3 Rc8 16. Nh5 cxd4 (16... Rc7 $14) 17. Nxc6 (17. exd4 $16 Ne4 18. Ng3) 17... Rxc6 18. Nxf6+ Qxf6 19. Bxd4 Rxc1 20. Qxc1 Qd8 21. Qb1 ({White should try} 21. Qc2 $16) 21... h6 22. b4 b5 23. Rf3 {Zia,T (2262)-Xu,Y (2495) chess.com INT 2024 0-1 (54)}) ({ RR} 8... Re8 9. Nb5 Bxd2+ 10. Nxd2 c6 11. Nc3 c5 12. Nf3 Bb7 13. Bb5 Bc6 14. a4 a6 15. Be2 Nbd7 16. b3 Qe7 17. O-O Bb7 18. Re1 Rac8 19. Bf1 Ne4 20. Rc2 Ndf6 21. Nxe4 dxe4 22. Ne5 Rcd8 23. Bc4 {Vescovi,G (2609)-Vetokhin,S (2376) Samarkand, Uzbekistan [https://lichess.org/@/loepare] 0-1 (31)}) 9. Bd3 Bd6 10. Ne5 {The position is equal.} Bb7 11. O-O c5 12. f4 Nc6 13. Ng4 Be7 14. Nxf6+ Bxf6 15. dxc5 bxc5 16. Bb1 g6 $146 ({Predecessor:} 16... d4 17. Ne4 dxe3 18. Bxe3 Bd4 19. Bxd4 Qxd4+ 20. Qxd4 Nxd4 21. Rxc5 Rad8 22. Nc3 Rfe8 {1-0 (81) Basso,P (2561)-Barp,A (2423) Paleochora 2022}) 17. b3 a5 18. Na4 Ba6 19. Re1 c4 20. e4 dxe4 21. Be3 Re8 $6 {Inaccuracy. Nd4 was best.} (21... Nd4) (21... Nd4 $15 22. Bxe4 Rc8) 22. Nc5 $6 {Inaccuracy. Qxd8 was best.} (22. Qxd8) 22... Bd4 $36 {[%mdl 2048] Black is pushing.} 23. Bxd4 Nxd4 24. Bxe4 $4 {[#] Blunder. Rxe4 was best.} (24. Rxe4 Rxe4) (24. bxc4 $15 e3 25. Nb3 Nxb3 26. Qxd8 Raxd8 27. axb3) 24... cxb3 $1 {[%mdl 512] Inaccuracy. c3 was best.} 25. Bxa8 $6 { Inaccuracy. axb3 was best.} (25. axb3 Ne2+ 26. Kh1 Nxc1 27. Bxa8 Rxe1+ 28. Qxe1 Nxb3 $1 29. Nxb3 a4 $1 30. Nc5 Qxa8 31. Nxa4 Bb7) (25. axb3 $17 Ne2+ {[%mdl 64] Double Attack} 26. Kh1 Nxc1 27. Bxa8 Rxe1+ 28. Qxe1 Nxb3 {[%mdl 64] Remove Defender} 29. Nxb3) 25... Be2 $1 $19 {[%CAl Re2d1]} ({Don't do} 25... Rxe1+ 26. Qxe1 Ne2+ 27. Kh1 $17) 26. Bc6 {aiming for Kh1.} Bxd1 27. Rxe8+ {[#]} Qxe8 $1 { [%mdl 576] Remove Defender} 28. Bxe8 Ne2+ {[%mdl 64] Double Attack} 29. Kf2 Nxc1 30. axb3 Bxb3 {[%mdl 4096] Endgame KBN-KBN} 31. Ke3 $6 {Inaccuracy. Bc6 was best.} (31. Bc6 Bc4) (31. Bc6 $17) 31... Bd5 32. g3 Nb3 33. Na4 Kf8 34. Bb5 Ke7 35. Nc3 Be6 36. Kd3 Nc5+ 37. Kd4 Kd6 38. Be8 Nb3+ 39. Kd3 Kc5 40. Ne4+ Kb4 41. Ng5 Bc4+ $1 42. Kc2 $6 {Inaccuracy. Ke3 was best.} (42. Ke3 h6 43. Ne4 a4 44. Bxa4 Kxa4 45. Nf6 Be6 46. g4 Kb5 47. h4 Kc5 48. h5 Kd6) 42... a4 {[%CAl Ba5a4,Ba4a3][%mdl 32]} 43. Bxf7 $2 {Mistake. Bxa4 was best.} (43. Bxa4 h6 44. Nh7 Kxa4 45. Kc3 Kb5 46. Nf6 Be6 47. g4 Nc5 48. h3 Nd7 49. Ng8 h5) (43. Bxa4 $142 Kxa4 44. Kc3) 43... a3 $2 {Mistake. Nd4+ was best. Threatens to win with . ..a2.} (43... Nd4+ 44. Kc1 Bxf7 45. Nxf7 a3 46. Ng5 Kb3 $1 47. Ne4 a2 48. Nd2+ Ka3 49. Nb1+ Kb4 50. Kb2) 44. Kb1 {With the idea Bxc4.} Nd2+ 45. Ka1 Bxf7 $1 46. Nxf7 {KN-KN} Kb3 $4 {Blunder. Nf3 was best.} (46... Nf3 $1) ({Black should play} 46... Nf3 $1 $19 47. Ng5 Nxg5 48. fxg5 Kc4) 47. Ne5 $11 a2 {( -> ...Ka3)} 48. Nd3 (48. Nc6 {with more complications.} Nf1 49. Nd4+ Kc3 50. Ne6 Nxh2 51. Kxa2 h5 52. Ng7) 48... Nf1 49. Nc1+ $4 {Blunder. Nc5+ was best.} (49. Nc5+ $1) ({Only move:} 49. Nc5+ $1 $15 Ka3 50. Ne6) 49... Kc2 $1 $19 {[%CAl Rc2c1]} 50. Nxa2 {Now Nb4+ and White clings on.} Nxh2 51. Nb4+ Kd2 52. Nd5 Ng4 $1 53. Nc7 Ke3 {Black is clearly winning.} 54. Ne6 {[#]} Nf6 $1 55. Ng5 $6 {Inaccuracy. f5 was best.} (55. f5 gxf5 56. Ng7 Ke4 57. Kb2 Nd5 58. Kc1 Ne7 59. Ne8 Kf3 60. Nf6 {[#]} h6 $1 61. Kd2 Kxg3) 55... h5 {And now ...Kf2 would win.} 56. Nf7 Nd5 57. Ne5 Ne7 58. Kb2 Kf2 59. g4 h4 {Hoping for ...h3.} 60. f5 gxf5 61. gxf5 Nxf5 62. Kc3 Kg3 {Precisão Chessbase: Brancas 55%, Pretas 79%. Precisão Lichess. org: Brancas 89%, Pretas 92% Precisão Chess.com: Brancas 86.4%, Pretas 90.6%} 0-1 [Event "Magistral Osasco 2024"] [Site "Sao Paulo"] [Date "2024.03.20"] [Round "3.5"] [White "Duarte Napoles, Fanny"] [Black "Bobadilla Viera, Jorge Samuel"] [Result "0-1"] [ECO "D35"] [WhiteElo "2203"] [BlackElo "2397"] [Annotator "Stockfish 16"] [PlyCount "86"] [EventDate "2024.03.18"] [EventCountry "BRA"] {[%evp 17,86,22,29,21,30,24,28,31,49,42,49,-67,-64,-67,-68,-75,-73,-196,-181, -189,-188,-218,-217,-212,-202,-227,-133,-129,-108,-122,-106,-100,0,-107,-113, -144,-92,-86,-89,-123,-106,-107,-93,-104,-110,-107,-117,-137,-148,-143,-99,-96, -36,-95,-92,-191,-191,-248,-252,-238,-238,-574,-548,-29988,-29989,-29989, -29990,-29990,-29991,-29994,-29995]} 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Be7 7. Bd3 Nbd7 8. Nge2 O-O 9. O-O h6 10. Bf4 $146 {D35: Queen's Gambit Declined: Exchange Variation.} ({RR} 10. Bh4 Ne8 11. Bg3 Ndf6 12. f3 Bd6 ({Black should try} 12... Nh5 $14) 13. Bxd6 Qxd6 14. Qd2 (14. e4 $16 ) 14... Nc7 (14... c5 $14) 15. e4 Nd7 (15... dxe4 $16 16. fxe4 Qe7) 16. e5 Qe7 17. f4 c5 18. Rae1 cxd4 (18... f5 {was necessary.} 19. b3 Nb6) 19. Nxd4 Qc5 20. Kh1 Kh8 (20... Nb8 $142 21. Na4 Qe7) 21. Nf3 Re8 22. f5 f6 23. e6 Nb6 24. Qf4 Na6 {Wen,Z-Gu,Y (1643) Shanghai CHN 2024 1-0}) 10... Nh5 11. Be5 $1 Re8 $146 ({ Predecessor:} 11... Nxe5 12. dxe5 g6 13. a3 Ng7 14. b4 Qc7 15. f4 Nf5 16. Bxf5 Bxf5 17. Nd4 Bd7 {0-1 (51) Udval,E (1599)-Amina,B (2212) Ulaanbaatar 2018}) 12. h3 {White has an edge.} Nxe5 13. dxe5 Bc5 14. Nf4 $2 {Mistake. Na4 was best.} ( 14. Na4 Bf8 15. f4 $1 b5 16. Nac3 $1 g6 17. Rc1 Bd7 18. Nd4 Rc8 19. Qf3 ({ Better is} 19. e6 $1 $16 {[%mdl 512]} Bxe6 20. f5 Bxf5 21. Nxf5) 19... Ng7 20. Nce2 (20. Qf2 $14) 20... c5 $1) (14. Na4 $14 Bb6 15. Nxb6 Qxb6 16. g4) 14... Nxf4 $15 15. exf4 Qh4 $1 {[%CAl Rh4f4]} 16. Qf3 g5 17. fxg5 $2 {Mistake. Ne2 was best.} (17. Ne2 gxf4 18. Nxf4 Rxe5 19. Rae1 Bd4 20. Rxe5 Bxe5 21. Nh5 Bd7 22. Re1 Bd4 $1 23. g3 Qg5 $1) (17. Ne2 $17) 17... Qxg5 $19 18. Rfe1 Bd7 19. Kf1 Rxe5 20. Rxe5 Qxe5 21. Re1 Qh2 $6 {Inaccuracy. Qg5 was best.} (21... Qg5 $1 22. Bc2 Rd8 23. a3 Re8 24. Rxe8+ Bxe8 25. Bf5 Qd2 26. Nd1 Bd4 27. g3 c5 28. Ne3) ( 21... Qg5 $19 22. Bc2 Re8 23. Rxe8+ Bxe8) 22. Ne2 $17 Re8 23. Ng3 {aiming for Rxe8+.} Rxe1+ 24. Kxe1 {[#]} Qg1+ (24... Bd6 $1 $17 25. Ke2 Bxg3 26. Qxg3+ Qxg3 27. fxg3 Kf8) 25. Nf1 (25. Bf1 $1 $11) 25... Kf8 26. a3 Ke7 27. g4 h5 {[%CAl Rh5g4]} 28. gxh5 $6 {Inaccuracy. b4 was best.} (28. b4 Bb6 29. gxh5 Qg7 30. Ne3 Qc3+ 31. Ke2 Qb2+ 32. Bc2 Kf8 33. Kd2 Qd4+ 34. Ke2 Qe5) 28... Qg7 29. b4 Qc3+ 30. Ke2 Bd4 31. Ne3 Qxa3 32. Nc2 Qb2 33. h6 Bf6 34. h7 b6 {[#]} ({Black should play} 34... Qe5+ $17 35. Kf1 Qc3) 35. Kd1 (35. b5 $1 $15 {[%mdl 512]}) 35... Be6 $36 {[%mdl 2048] Black is on the roll.} 36. Qg3 $6 {Inaccuracy. b5 was best.} (36. b5 c5 37. Qf4 Qe5 38. Qa4 Qc7 39. Ne3 c4 40. Bf5 Bh8 41. Qa3+ (41. Bg4 $17) 41... Ke8 42. Qa2 c3 (42... Qe7 $142 43. Qe2 Qf6)) (36. b5 $17 { was worth a try.}) 36... Qe5 $19 37. f4 (37. Ne3 $142) 37... Qh5+ 38. Kd2 Qxh3 ({Resist} 38... Bxh3 39. b5) 39. Qg8 $2 {Mistake. Qf2 was best.} (39. Qf2 Kd6 40. Nd4 Bg4 41. Qg1 Kc7 42. Kc2 Bd7 43. Kd2 Qg4 44. Qe3 Qg2+ 45. Ne2 Qh3) (39. Qf2 {is a better chance.}) 39... Qh2+ {[%mdl 64] Double Attack} 40. Kd1 $4 { Checkmate is now unavoidable. Kc1 was best.} (40. Kc1 Qxf4+ 41. Kb1 Qe5 { [%csl Gf6][%CAl Re5b2]} 42. Kc1 a5 43. bxa5 bxa5 44. Qg1 Qb2+ 45. Kd2 Qc3+ 46. Ke2 c5) 40... Bc3 {[%csl Gc3][%CAl Rh2d2] Black mates.} 41. Qg5+ f6 {[%csl Gc3] [%CAl Rh2d2]} 42. Qg7+ Bf7 {[%csl Gc3][%CAl Rh2d2]} 43. Be2 $2 {Checkmate is now unavoidable. Qxf6+ was best.} (43. Qxf6+ Bxf6 44. Be2 Qxh7 45. Kd2 Qe4 46. Ne3 Qxb4+ 47. Kd1 Qd4+ 48. Ke1 Bh4+ 49. Kf1 Qxe3) 43... Qh1+ {Precisão Chessbase: Brancas 50%, Pretas 80%. Precisão Lichess.org: Brancas 90%, Pretas 96%. Precisão Chess.com: Brancas 81.2%, Pretas 92.5%.} 0-1