[Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.2"] [White "Souza, Iago Henrique da Si"] [Black "Nogueira, Adnilton Correia de"] [Result "1-0"] [ECO "E91"] [WhiteElo "2036"] [BlackElo "1779"] [Annotator "Stockfish 16.1"] [PlyCount "42"] [EventDate "2024.??.??"] {[%evp 14,42,81,77,233,132,133,114,134,119,248,254,248,260,387,379,376,374,420,401,482,468,498,492,515,521,520,501,527,533,536]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 c6 7. O-O Nbd7 8. h3 Re8 $2 {Mistake. e5 was best. E91: King's Indian: Classical: 6 Be2, unusual replies including 6...c5 and 6...Bg4.} (8... a6 9. e5 Ne8 {[%CAl Rd6e5]} 10. exd6 exd6 11. Re1 Nc7 12. Bf4 Nf6 13. d5 c5 (13... cxd5 14. cxd5 Re8) 14. a4 $16 b6 15. Nd2 Re8 16. Bf3 Rxe1+ 17. Qxe1 Rb8 18. Qe2 Bb7 (18... Nce8) 19. Re1 Qd7 (19... Qf8 $16) 20. Bg4 (20. Nce4 $18) 20... Nxg4 21. Qxg4 Qxg4 22. hxg4 Bf8 23. Nde4 {Petrosian,S (2375)-Rasik,V (2465) Germany 1999 0-1 (78)}) (8... e5 9. d5 c5 10. a3 Ne8 11. b4 h6 12. Ne1 f5 13. Nd3 b6 14. Bb2 (14. Bd2 $14) 14... Ndf6 (14... f4) 15. exf5 $1 $14 gxf5 16. f4 e4 17. Ne1 $1 Bd7 {[%CAl Bh6h5]} 18. Nc2 Qe7 19. Ne3 Qf7 (19... h5 $14) 20. Kh1 h5 21. Rg1 Qg6 22. g3 Kf7 23. Rg2 (23. Qb3) 23... Rh8 $16 24. Qc2 Bh6 (24... Ng8 $14) 25. Rag1 Qh7 26. Rf1 Bg7 27. Qb3 Rc8 (27... Nc7) 28. a4 $16 Rb8 (28... Ng8 $16) 29. bxc5 $1 $18 dxc5 30. d6 Nxd6 {[%CAl Bf6g4]} 31. Rd1 Nde8 32. Bf1 (32. Nb5 $18) 32... Be6 33. Rgd2 (33. a5 $1 $18) 33... Qg6 $14 34. Rg2 Rf8 (34... Ng8 $14) 35. Ncd5 Rb7 36. Be2 Qh6 37. Rh2 {[%CAl Bg3g4] Strongly threatening g4!} Rd7 $2 (37... Rh8 $16 {is a better defense.}) 38. g4 {1-0 Sadhwani,R (2545)-Onischuk,V (2633) Titled Tuesday intern op 03rd Nov Chess.com INT blitz 2020 (10)}) ({Relevant:} 8... e5 9. d5 c5 10. a3 Ne8 11. b4 h6 12. Ne1 f5 13. Nd3 b6 14. Bb2 Ndf6 15. exf5 gxf5 16. f4 e4 17. Ne1 Bd7 18. Nc2 Qe7 19. Ne3 Qf7 20. Kh1 h5 21. Rg1 Qg6 22. g3 Kf7 23. Rg2 Rh8 24. Qc2 Bh6 25. Rag1 Qh7 26. Rf1 Bg7 27. Qb3 Rc8 28. a4 Rb8 29. bxc5 dxc5 30. d6 Nxd6 31. Rd1 Nde8 32. Bf1 Be6 33. Rgd2 Qg6 34. Rg2 Rf8 35. Ncd5 Rb7 36. Be2 Qh6 37. Rh2 Rd7 38. g4 {Sadhwani,R (2545)-Onischuk,V (2633) Chess.com INT 2020 1-0}) 9. Be3 $6 {Inaccuracy. e5 was best.} (9. e5 dxe5 10. dxe5 Nh5 11. g4 Nxe5 12. Nxe5 Bxe5 13. Qxd8 Rxd8 14. gxh5 Bxh3) 9... Qc7 10. Rc1 a6 $146 {White is better.} (10... e5 11. d5 c5 12. a3 a6 13. b4 b6 14. Ne1 Rf8 15. f4 $2 (15. Nf3 $16) 15... h6 $2 (15... exf4 $1 16. Bxf4 Re8) 16. Qd2 (16. f5 $1 $16) 16... Kh7 (16... exf4 $14 17. Bxf4 g5) 17. Nd3 (17. f5 $16) 17... Ng8 (17... exf4 $1 $14 18. Bxf4 Re8) 18. b5 (18. f5 $1 $18) 18... a5 $2 (18... exf4 $14 19. Bxf4 Bd4+ 20. Kh1 Bb7) 19. g4 $2 (19. f5 $1 $18) 19... Qd8 $2 (19... exf4 $14 20. Bxf4 Bb7) 20. Qe1 (20. f5 $1 $18) 20... Qe7 (20... exf4 $14 21. Bxf4 Bd4+ 22. Kg2 Ne5) 21. Qg3 f6 (21... exf4 $16 22. Bxf4 Bd4+ 23. Kh2 Ne5) 22. Kf2 (22. f5 $18) 22... Bb7 (22... f5 $16) 23. Rh1 (23. f5 $18) 23... Rae8 $2 (23... f5 $16) 24. Rcg1 $2 (24. f5 $18) 24... g5 $2 (24... exf4 {and Black stays safe.} 25. Nxf4 f5 26. gxf5 Bxc3 27. Qxg6+ Kh8) 25. f5 {Oliveira Jr,A (1883)-Dos Santos,A (1747) Natal 2009 1-0 (77)}) 11. b4 {[#]} b5 $146 {Mistake. e5 was best.} (11... e5 12. d5 c5 13. a3 b6 (13... a5 14. b5 Nb6 15. g4 h5 16. g5 Nh7 17. Kg2) 14. Ne1 Nf8 15. Nd3 Bd7 16. Rb1 Reb8 $16 (16... Nxe4 17. Nxe4 f5 18. Nxd6 Qxd6 19. bxc5 bxc5 20. Bxc5 {0-1 (48) Baracca,P (2043)-Havaskori,L (1911) Budapest 2016} Qc7 21. Qc1 e4 22. Bb6 $1 Qd6 23. Nc5 Bc8 24. Re1 Kh8 25. Bf1 {Hoping for Qd2.} Rb8 26. Na4 {aiming for Bc5.} Bd7 27. Bc5 Qc7 28. Bxf8 $2 (28. Bb6 $18 Qd6 29. c5 Qxd5 30. Rd1) 28... Rxf8 (28... Bxf8 $17 29. Qc2 Kg8) 29. Nc3 $15 Rxb1 30. Nxb1 {And now c5 would win.} Qc5 31. Re2 (31. Rd1 $15) 31... Rb8 32. Ra2 (32. Nc3) 32... Bd4 $1 $17 33. Qe1 Ba4 34. Nd2 (34. g3 {was necessary.}) 34... Kg7 (34... Bxf2+ $1 $19 {[%mdl 512]} 35. Qxf2 e3) 35. g3 $17 Bb3 36. Nxb3 Rxb3 37. Kg2 a5 38. a4 h5 (38... Rf3 $17) 39. Be2 $2 {[#]} (39. Rd2 $15 Qb4 40. Rd1 Qxe1 41. Rxe1) 39... h4 $1 $19 40. gxh4 f4 {White must now prevent ...f3+.} 41. Bd1 $2 {[%mdl 8192] 0-1 Baracca,P (2043)-Havaskori,L (1911) Budapest FS12 FM 2016 (10)} (41. Bf1 $17 f3+ 42. Kh1)) 17. f3 Nh5) ({Predecessor:} 11... e5 12. d5 c5 13. a3 b6 14. Ne1 Nf8 15. Nd3 Bd7 16. Rb1 Nxe4 17. Nxe4 f5 18. Nxd6 Qxd6 19. bxc5 bxc5 20. Bxc5 Qc7 21. Qc1 e4 22. Bb6 Qd6 23. Nc5 Bc8 24. Re1 Kh8 25. Bf1 Rb8 26. Na4 Bd7 27. Bc5 Qc7 28. Bxf8 Rxf8 29. Nc3 Rxb1 30. Nxb1 Qc5 31. Re2 Rb8 32. Ra2 Bd4 33. Qe1 Ba4 34. Nd2 Kg7 35. g3 Bb3 36. Nxb3 Rxb3 37. Kg2 a5 38. a4 h5 39. Be2 h4 40. gxh4 f4 41. Bd1 {Baracca,P (2043)-Havaskori,L (1911) Budapest 2016 0-1}) 12. cxb5 $18 axb5 13. d5 Rb8 $2 {Mistake. c5 was best. [#]} (13... c5 14. e5 (14. Nxb5 Qd8 $16) (14. Bxb5 cxb4 15. Na4 Qa5 $14) 14... Nxe5 (14... dxe5 15. Nxb5 Qd8 16. bxc5 e4 17. Ng5 Ne5 18. d6 Rxa2 19. c6)) 14. Nxb5 $1 {[%mdl 512]} Rxb5 15. Bxb5 {[%mdl 64] Pin} c5 16. e5 {[%CAl Be4e5,Be5e6][%mdl 32]} Ne4 17. Qd3 {White is clearly winning.} f5 18. e6 Ndf6 19. Bxe8 Nxe8 20. bxc5 dxc5 {[#]} 21. Bxc5 $1 Qd8 {Weighted Error Value: White=0.15 (very precise) /Black=0.62 PRECISÃO LICHESS: BRANCAS 95% PRETAS 87%} (21... Nxc5 22. Qb5) 1-0 [Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.3"] [White "Miguel, Mendes Da Costa"] [Black "Santos Filho, Tadeu Sousa"] [Result "0-1"] [ECO "B13"] [BlackElo "1992"] [Annotator "Stockfish 16.1"] [PlyCount "77"] [EventDate "2024.??.??"] {[%evp 9,77,25,16,0,0,0,5,1,-1,-21,-13,-28,-24,-28,-31,-33,-32,-30,-24,-34,-31,-41,-50,-39,-21,-58,-30,-47,-4,-9,-12,-48,-45,-51,-57,-138,-143,-147,-144,-142,-123,-155,-145,-156,-156,-204,-200,-197,-168,-226,-101,-229,-244,-247,-255,-463,-467,-442,-455,-579,-578,-588,-578,-584,-578,-722,-408,-697,-472,-455]} 1. e4 c6 2. Nf3 d5 3. exd5 cxd5 4. d4 Nc6 5. c3 Bf5 (5... Bg4 6. Be2 e6 7. O-O Bd6 8. Re1 Nge7 9. Nbd2 O-O 10. Nf1 Qc7 11. Ng3 Ng6 12. Be3 Rfe8 13. Qd2 {[#]} (13. Nf1 $15) 13... Bf4 (13... f5 $1 $17 {[%CAl Rf5f4] White must now prevent ...f4.} 14. Ne5 Bxe2 15. Nxe2 Ngxe5 16. dxe5 Nxe5) 14. Rad1 Bxe3 15. Qxe3 Qb6 16. Rd2 Na5 17. h3 Bxf3 18. Qxf3 Rac8 19. Bd3 Nc4 20. Bxc4 dxc4 21. Nh5 Qa5 22. a3 b5 23. d5 exd5 24. Red1 Rcd8 25. Rxd5 {[%CAl Bf3e3]} Rxd5 26. Qxd5 {Threatens to win with Qd7.} h6 (26... Qc7) 27. Qd4 {[%csl Gh5][%CAl Rd4g7]} Re5 28. Nxg7 $2 {[%mdl 8192]} (28. g4 $14 {stays ahead.}) 28... Qb6 29. f4 Qxd4+ $2 (29... Rd5 $19 30. Nh5 Rxd4 31. Rxd4 Ne7) 30. Rxd4 Re1+ (30... Nxf4 {keeps the balance.} 31. Rxf4 Kxg7) 31. Kf2 $16 Rb1 32. Nf5 Rxb2+ 33. Kf3 Rb3 34. Rd8+ (34. Nxh6+ $14 Kf8 35. Nf5 Rxc3+ 36. Ke4) 34... Kh7 35. Rd7 {1-0 Vachier Lagrave,M (2732)-Yoo,C (2599) Bullet Chess Losers Chess.com INT blitz 2024 (1.27)}) ({Relevant:} 5... Bg4 6. Be2 e6 7. O-O Bd6 8. Re1 Nge7 9. Nbd2 O-O 10. Nf1 Qc7 11. Ng3 Ng6 12. Be3 Rfe8 13. Qd2 Bf4 14. Rad1 Bxe3 15. Qxe3 Qb6 16. Rd2 Na5 17. h3 Bxf3 18. Qxf3 Rac8 19. Bd3 Nc4 20. Bxc4 dxc4 21. Nh5 Qa5 22. a3 b5 23. d5 exd5 24. Red1 Rcd8 25. Rxd5 Rxd5 26. Qxd5 h6 27. Qd4 Re5 28. Nxg7 Qb6 29. f4 Qxd4+ 30. Rxd4 Re1+ 31. Kf2 Rb1 32. Nf5 Rxb2+ 33. Kf3 Rb3 34. Rd8+ Kh7 35. Rd7 {Vachier Lagrave,M (2732)-Yoo,C (2599) Chess.com INT 2024 1-0}) 6. Bd3 {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack.} Bxd3 7. Qxd3 Qc7 (7... e6 8. O-O Nf6 9. Bg5 Be7 10. Nbd2 O-O 11. Rfe1 h6 12. Bh4 Rc8 13. Nb3 b6 14. h3 Qc7 15. Re2 Ne4 16. Bxe7 Qxe7 17. Rae1 Nd6 18. Ne5 Nxe5 19. Rxe5 (19. dxe5 Ne4 20. Nd4) 19... Nc4 (19... Ne4 $1 $15) 20. R5e2 Rfd8 21. Qb1 a5 22. Nd2 {Florez,E-Posada Torres,B (1834) Medellin COL 2024 ½-½ (45)}) 8. O-O {next c4 is good for White. The position is equal.} e6 {[#]} 9. Nbd2 $146 (9. Re1 Bd6 10. Bg5 Nge7 11. Nbd2 O-O (11... Ng6 12. Nf1 O-O 13. Ng3 Rae8 14. Rad1 a6 15. Nh4 Nxh4 16. Bxh4 {0-1 (25) Aleskerov,F (2315)-Nakamura,H (2781) Chess.com INT 2018} b5 17. Nf1 b4 18. c4 Qa5 19. Ne3 Bf4 20. cxd5 exd5 21. Nf5 $2 {[%mdl 8192]} (21. Rc1 Re6 22. Bg3 Bxg3 23. hxg3) 21... b3 (21... Rxe1+ $19 22. Rxe1 b3) 22. Rxe8 $4 {[%mdl 8192]} (22. Rf1 $17) 22... Rxe8 $19 23. axb3 Re1+ 24. Rxe1 Qxe1+ 25. Qf1 Bxh2+ $1 {0-1 Aleskerov,F (2315)-Nakamura,H (2781) PRO League Stage Chess.com INT rapid 2018 (8)}) 12. Bh4 Ng6 13. Bg3 Rab8 14. Nb3 Rfc8 15. Qe3 Bxg3 16. hxg3 Na5 17. Nxa5 Qxa5 18. Ne5 Rc7 (18... Nxe5 19. Qxe5 Qb5) 19. Nd3 b6 (19... Re7 $14) 20. f4 Ne7 (20... Re7 $16) 21. g4 $18 Qb5 22. Qh3 Qd7 23. Re5 g6 {Bedoshvili,D (1684)-Lomaia,D (2007) Tornelo 2021 1-0 (39)} (23... Ng6)) ({Predecessor:} 9. Re1 Bd6 10. Bg5 Nge7 11. Nbd2 Ng6 12. Nf1 O-O 13. Ng3 Rae8 14. Rad1 a6 15. Nh4 Nxh4 16. Bxh4 b5 17. Nf1 b4 18. c4 Qa5 19. Ne3 Bf4 20. cxd5 exd5 21. Nf5 b3 22. Rxe8 Rxe8 23. axb3 Re1+ 24. Rxe1 Qxe1+ 25. Qf1 Bxh2+ {0-1 (25) Aleskerov,F (2315)-Nakamura,H (2781) Chess.com INT 2018}) 9... Nf6 10. Nb3 h6 11. Re1 Bd6 12. g3 O-O 13. Be3 Rfe8 14. Nbd2 b5 15. b4 a5 16. a3 Reb8 17. Rec1 Ng4 18. Kg2 f5 19. Qe2 {[%CAl Be3f4]} Nf6 20. Bxh6 gxh6 21. Qxe6+ Kg7 22. Nh4 $6 {Inaccuracy. Qxf5 was best.} (22. Qxf5 Ne7 23. Qd3 (23. Qe6 Ng6 $15)) 22... Ne7 $17 23. Nxf5+ Nxf5 24. Qxf5 Qd7 25. Qd3 Qg4 26. Re1 Nh5 {Hoping for ...Nf4+.} 27. Kh1 {[#]} Rf8 $1 28. f4 (28. Qxb5 $2 Rxf2 29. Kg1 Bxg3 30. Qb7+ Kg6 $19) 28... Qh3 {Strongly threatening ...Rxf4.} 29. Qf3 (29. Rg1 {is a better defense.}) 29... Rac8 $2 {Mistake. axb4 was best.} (29... axb4 30. cxb4 Rac8 31. Re2 Rc2 32. Rae1 Rfc8 33. Qg2 Qxg2+ 34. Kxg2 Bxf4 35. Nb3) 30. Rac1 $6 {Inaccuracy. bxa5 was best.} (30. bxa5 Ra8 31. a4 (31. Qg2 Qxg2+ 32. Kxg2 Rxa5 33. Re6 Bxf4 34. Nf3 Rf7 35. Ne5 Rfa7)) 30... a4 $19 31. Rg1 Nf6 32. g4 $2 {Mistake. Rg2 was best.} (32. Rg2 Rc7 33. Qd3 Rfc8 34. Nf1 Qg4 35. Kg1 Rc6 36. Qxb5 Rxc3 37. Rxc3 Rxc3) 32... Qxf3+ 33. Nxf3 Bxf4 34. g5 Ne4 35. gxh6+ Kxh6 36. Rc2 Be3 37. Rg4 Bd2 $2 {Mistake. Rxf3 was best.} (37... Rxf3 38. Rh4+ Kg6 39. Kg2 Rcf8 40. Rh8 Rxh8 41. Kxf3 Bg5 42. c4 Rf8+ 43. Ke2) 38. Kg1 $2 {Mistake. Rh4+ was best.} (38. Rh4+ Kg6 39. Nxd2 Rf2 40. Rg4+ Kf5 41. Rg2 Rxd2 42. Rcxd2 Nxd2 43. Rxd2 Rxc3) 38... Be3+ $6 {Inaccuracy. Rxf3 was best.} (38... Rxf3 39. c4 Kh5 40. h3 Rcf8 41. Rxd2 Nxd2 42. cxb5 Re8 43. Kh2 Rc3 44. Kg1) 39. Kg2 {Weighted Error Value: White=0.47/Black=0.33 PRECISÃO LICHESS: BRANCAS 88% PRETAS 91%} 0-1 [Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.4"] [White "Manzi, Luiz Antonio Bardar"] [Black "Sirlei Pereira de Azevedo"] [Result "1-0"] [ECO "D02"] [WhiteElo "1980"] [Annotator "Stockfish 16.1"] [PlyCount "123"] [EventDate "2024.??.??"] {[%evp 9,123,12,9,-11,-9,-11,-5,-2,-7,-45,39,54,67,-30,62,66,86,87,99,68,73,67,150,125,196,196,249,43,32,-25,173,164,204,209,259,241,256,233,323,278,286,283,379,368,405,401,464,463,473,442,472,460,508,504,540,535,723,640,716,628,718,707,678,631,614,603,707,698,721,566,565,549,675,617,29973,29976,29976,29978,29978,29979,29979,29980,29980,29981,29981,29982,29982,29983,29983,29984,29984,29984,29985,29986,29986,29987,29987,29988,29989,29990,29990,29991,29991,29992,29993,29994,29994,29995,29995,29996,29996,29997,29997,29998,29998,29999]} 1. Nf3 Nc6 2. d4 d5 3. g3 Nf6 4. Bg2 Bf5 5. c3 h6 6. Nbd2 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} e6 7. O-O Be7 (7... Bd6 8. b4 (8. Re1 O-O 9. Nh4 Bh7 10. e4 {Hoping for e5.} Be7 11. e5 Nd7 12. Nhf3 $1 Nb6 (12... a5 $15) 13. h4 Qd7 (13... Nb8) 14. Nf1 Nc4 (14... f6 $14) 15. N3d2 (15. g4 $16) 15... Nxd2 16. Bxd2 Rfb8 17. Ne3 b6 (17... Bf8 $14) 18. Ng4 (18. f4 $18) 18... Na5 19. Qc1 {[%CAl Bd2h6] Bxh6! is the strong threat.} Qd8 20. Ne3 (20. b3 $14) 20... c5 21. Qd1 c4 $2 {[%mdl 8192]} (21... cxd4 {and Black stays safe.} 22. cxd4 Nc6) 22. f4 {Farmakoski,G (1481)-Djorovic,M (1063) Struga 2021 1-0 (32)}) 8... a6 9. a4 O-O 10. Nb3 Re8 11. Bb2 Be4 12. Nc5 (12. Re1) 12... Bxc5 $17 13. dxc5 Bxf3 (13... Qe7 $17) 14. exf3 Ne5 15. Re1 Nc4 16. Bc1 b6 17. Bf1 bxc5 18. bxc5 Rb8 19. Bd3 c6 (19... Qd7) 20. Qe2 Qa5 (20... Rb3) 21. Bxc4 $16 Qxc3 $2 (21... dxc4 $16 22. Qxc4 Nd5) 22. Bf4 {Shanava,K (2491)-Lortkipanidze,N (2377) Konyaalti 2019 1-0 (44)}) 8. Re1 {The position is equal.} O-O 9. e3 Nd7 $6 $146 {Inaccuracy. a5 was best.} (9... b6 10. Qe2 Na5 (10... a5) 11. Ne5 $14 Nb7 12. e4 dxe4 13. Nxe4 Nxe4 14. Bxe4 Bxe4 15. Qxe4 Nd6 16. Qe2 (16. Qg4 $16) 16... Nb7 (16... Nf5 {keeps the balance.}) 17. Qg4 (17. d5) 17... Kh8 18. Qh5 Qe8 $2 (18... Kg8 $16) 19. Bd2 $2 (19. Bxh6 $1 $18 gxh6 20. Qxh6+ Kg8 21. d5) 19... Rc8 $2 (19... Nd6 $16) 20. Qe2 $2 (20. Bxh6 $1 $18 {[%mdl 512] is the precise move to win.} Kg8 21. Bf4) 20... Bd8 (20... Nd8) 21. Qa6 Nd6 22. Qxa7 f6 23. Nf3 $2 {[%mdl 8192] [#]} (23. Nd3 $16) 23... Qc6 $1 $19 24. Nh4 {Tsirulnik,M-Choba,Y Nikolaev 2001 0-1 (92)}) (9... a5 10. b3) (9... Ne4 10. Nxe4 Bxe4 {½-½ (10) Istratescu,C (524)-Ariton,R Voineasa 2008}) 10. e4 $14 Bg4 11. e5 $6 {Inaccuracy. b4 was best.} (11. b4 a5 12. b5 Na7 13. a4 c6 14. h3 Bh5 15. exd5 exd5 16. Qb3 Bg6) 11... f6 $6 {Inaccuracy. a5 was best.} (11... a5 12. h3) 12. exf6 Rxf6 13. h3 Bh5 14. g4 Bg6 15. Nf1 Bd6 $6 {Inaccuracy. Nf8 was best.} (15... Nf8) 16. Ng3 Bxg3 (16... e5 $16) 17. fxg3 $18 {[%CAl Bf2g3,Bg3f4,Bf4e5][%mdl 32]} Qf8 $6 {Inaccuracy. Be4 was best.} (17... Be4 18. g5 Rg6 19. Nh4 Rxg5 20. Bxg5 Qxg5 21. Bxe4 dxe4 22. Rxe4 Qxg3+ 23. Ng2) 18. Bf4 $4 {Blunder. g5 was best.} (18. g5 hxg5 19. Bxg5 Qd6 20. Bxf6 Nxf6 21. g4 Ne4 22. Qd3 a5 23. Qe3 a4) 18... Be4 $14 19. Rf1 $6 {Inaccuracy. Qb3 was best.} (19. Qb3 Nb6) 19... Rc8 $4 {Blunder. g5 was best.} (19... g5 20. Bxc7 Rc8) 20. h4 Rxf4 $6 {Inaccuracy. e5 was best.} (20... e5 21. g5) 21. gxf4 Qe7 $6 {Inaccuracy. Qxf4 was best.} (21... Qxf4 22. Nd2 Qe3+ 23. Rf2 Bxg2 24. Kxg2 Rf8 25. Qe1 Rxf2+ 26. Qxf2 Qd3 27. Re1) 22. Qe1 Rf8 23. Qg3 b5 24. Ne5 Ncxe5 25. fxe5 (25. dxe5 Nc5 26. g5 h5 $16) 25... Bxg2 26. Kxg2 Rxf1 27. Rxf1 $18 {[%mdl 4096] Endgame KQR-KQN} c5 $6 {Inaccuracy. Nf8 was best.} (27... Nf8 28. g5 h5 29. Kh2 Qe8 30. g6 c5 31. Qf3 Nxg6 32. Qxh5 b4 33. Qg4) 28. g5 hxg5 29. Qxg5 Qxg5+ 30. hxg5 cxd4 31. cxd4 {KR-KN} a5 32. Rc1 Kf8 33. Kg3 g6 34. Kf4 b4 35. Rc6 Ke7 36. Ra6 Nb8 37. Ra7+ Kd8 38. Rg7 Nc6 39. Ke3 Ne7 {Strongly threatening ...Nf5+.} 40. Kd3 a4 41. a3 bxa3 42. bxa3 {White mates.} Ke8 {[#]} 43. Rxe7+ $1 {[%mdl 512]} Kxe7 {KP-KP} 44. Kc3 Kd7 45. Kb4 Kc6 46. Kxa4 Kb6 47. Kb4 Kc6 48. Ka5 Kc7 49. Kb5 Kb7 50. Kc5 Kc7 $6 {Checkmate is now unavoidable. Ka7 was best.} (50... Ka7) 51. a4 Kd7 52. Kb6 Kc8 53. Kc6 Kd8 $6 {Checkmate is now unavoidable. Kb8 was best.} (53... Kb8 54. Kd7 Kb7 55. Kxe6 Kc7 56. Kf7 Kb6 57. Ke7 Ka5 58. e6 Kxa4 59. Kd6) 54. Kb7 Kd7 55. a5 Kd8 $4 {Checkmate is now unavoidable. Ke8 was best.} (55... Ke8 56. a6 Kf8 57. a7 Kg8 58. a8=Q+ Kh7 59. Qe8 Kg7 60. Qxe6 Kf8 61. Qd7) 56. a6 Kd7 57. a7 Kd8 58. a8=Q+ Kd7 59. Qg8 Ke7 60. Qg7+ Kd8 61. Kc6 {[%csl Gc6][%CAl Rg7d7]} Ke8 62. Kd6 {Weighted Error Value: White=0.22 (precise) /Black=0.35 PRECISÃO LICHESS: BRANCAS 93% PRETAS 89%} 1-0 [Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.5"] [White "Israel Sanches Marcellino"] [Black "Fillipe Fernandes Rodrigues"] [Result "1-0"] [ECO "A50"] [WhiteElo "1594"] [BlackElo "2060"] [Annotator "Stockfish 16.1"] [PlyCount "82"] [EventDate "2024.??.??"] {[%evp 21,82,30,33,-37,-37,-128,-124,-121,-115,-262,-262,-264,-257,-253,-246,-300,-286,-242,-233,-234,-235,-274,-3,-8,0,0,8,4,15,14,23,14,17,0,98,68,487,487,505,505,507,507,505,476,517,512,540,537,541,542,534,534,541,531,532,532,538,528,566,565,573,545,554]} 1. c4 Nf6 2. d4 c6 3. Nc3 d5 4. cxd5 cxd5 5. Nf3 g6 6. g3 Bg7 7. Bg2 O-O 8. O-O Nc6 9. Bf4 a6 10. Ne5 (10. Rc1 Nh5 11. Be3 Na5 12. b3 Bf5 13. Qd2 Re8 14. Ne5 Nf6 15. f3 Rc8 16. Bf2 Nc6 17. Nxc6 Rxc6 18. e4 dxe4 19. fxe4 Rxc3 20. Qxc3 Nxe4 21. Bxe4 Bxe4 22. Qc7 Bxd4 23. Qxd8 Bxf2+ 24. Kxf2 Rxd8 {Plat,V (2411)-Vass,F (2402) Slovakia 2009 ½-½ (34)}) 10... Nh5 (10... e6 11. Nxc6 bxc6 12. Rc1 Nh5 13. Be3 Bd7 14. Na4 Qe7 15. b3 Rfe8 16. Nb6 Rab8 17. Nxd7 Qxd7 18. Qd3 Rb6 19. Rc2 Bf8 20. Rd1 a5 21. Bd2 Ra8 22. Rb1 Bb4 23. e3 Ng7 24. Bc1 Qe7 25. Bb2 {Tian,S (1455)-Yan,L Shanghai CHN 2024 1-0 (82)}) 11. Nxc6 bxc6 12. Qd2 $6 $146 {Inaccuracy. Bc1 was best. D79: Fianchetto Grünfeld: Symmetrical Variation (6 0-0 c6 7 cxd5 cxd5).} (12. Bg5 $14) (12. Be3 f5 (12... Rb8 13. Qd2 Bf5 14. Na4 Qc8 15. Rac1 {And now Bxd5 would win.} Qb7 16. b3 Nf6 17. Nc5 Qb5 18. Bf4 Rbc8 (18... Ra8 $16 19. f3 a5) 19. f3 $18 Nd7 20. e4 dxe4 21. fxe4 Bg4 22. Rfe1 (22. h3 $16 Rcd8 23. Na4) 22... Rfd8 $14 {Strongly threatening ...Nxc5.} 23. e5 Nxc5 24. Rxc5 Qxc5 25. dxc5 {Black must now prevent Qc1.} Rxd2 26. Bxd2 Rd8 {Schroeder,R (2105)-Tietz,J Pinneberg 1999 ½-½ (53)}) (12... Nf6 13. f3 (13. Na4 $14) 13... Bd7 (13... a5) 14. Rc1 Ne8 15. Na4 Nd6 16. Nc5 (16. Bf2 $16) 16... Be8 (16... Nc4 $1 $15 {stays ahead.} 17. Bf2 Nxb2) 17. Bf2 Qa5 18. b3 Qb4 19. a3 Qb6 20. e4 e6 21. e5 Nb5 (21... Nb7 {was necessary.} 22. Na4 Qc7) 22. a4 $18 Nc7 23. f4 (23. b4 $18) 23... f6 (23... a5 $16) 24. Bh3 f5 25. g4 Rf7 26. gxf5 gxf5 {Lukachewski Junior,W (2008)-Molina,V (1822) Foz do Iguacu 2014 1-0 (43)} (26... exf5 $16 27. Re1 a5)) (12... e5 13. dxe5 Bxe5 14. Bd4 Re8 15. Rc1 Bd7 16. Bxe5 Rxe5 17. e4 dxe4 18. Nxe4 Be8 19. Qd6 Qxd6 20. Nxd6 {½-½ (55) Berkovich,M (2326)-Gusarov,G (2354) Chess.com INT 2020})) (12. Bc1 Re8) 12... Nxf4 $15 13. Qxf4 $6 {Inaccuracy. gxf4 was best.} (13. gxf4 Bf5 14. Na4) 13... Qb6 $17 {[%csl Bb2,Bd4]} 14. e3 {Black is better.} Qxb2 15. Na4 $2 {Mistake. Rac1 was best.} (15. Rac1 Qb4 16. Qc7 Bf5 17. Qxc6 e6 18. Qa4 a5 19. a3 Qb2 20. e4 dxe4) 15... Qb4 $19 16. Nc5 e5 $1 17. Nd3 Qxd4 (17... exf4 18. Nxb4 fxe3 19. Nxc6 $17) 18. Qxf7+ Rxf7 19. exd4 exd4 20. Rac1 {[#]} Bd7 21. Nb4 Rf6 $4 {Blunder. Rc8 was best.} (21... Rc8 22. Nxa6 Bh6 23. f4 Bf8 24. Rfd1 Ba3 25. Rb1 Bf5 26. Rb6 d3 27. h3) 22. Nxc6 Bxc6 23. Rxc6 Rd8 24. Rc5 Rfd6 25. Rd1 Kf8 26. Kf1 Rb6 27. Bxd5 Ke7 $2 {Mistake. Rbd6 was best.} (27... Rbd6 28. Bc4 d3) 28. Bb3 Rb5 $4 {[%mdl 8192] Blunder. Rd7 was best.} (28... Rd7 29. Ba4 Rdb7 30. Bc2 Kd6 31. Ra5 Rc7 32. Bd3 Bf6 33. Kg2 Ke7 34. Rxa6) 29. Rc7+ $18 {White is clearly winning.} Rd7 {[#]} 30. Rxd7+ Kxd7 {[%mdl 4096] Endgame KRB-KRB} 31. Ba4 Kc6 32. Bxb5+ axb5 {KR-KB} 33. Ke2 Kc5 34. Kd3 Kb4 35. Rb1+ Ka4 36. Rb3 h6 37. Ke4 Bf6 38. f4 h5 39. h3 b4 40. g4 Kb5 41. Kd5 Bg7 {Weighted Error Value: White=0.23 (precise) /Black=0.59 PRECISÃO LICHESS: BRANCAS 94% PRETAS 88%} 1-0 [Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.6"] [White "Fucs, Paulo Moses"] [Black "Handel, Scholze Marques"] [Result "1-0"] [ECO "A16"] [WhiteElo "1917"] [Annotator "Stockfish 16.1"] [PlyCount "43"] [EventDate "2024.??.??"] {[%evp 12,43,15,8,218,203,235,238,233,231,239,223,243,240,230,232,322,322,389,385,424,425,417,414,423,426,448,455,467,464,492,487,539,521]} 1. c4 Nf6 {[%CAl Bg8f6,Bf6d5,Bd5c3,Bc3d1][%mdl 32]} 2. Nc3 g6 3. Nf3 {[%CAl Bg1f3,Bf3g5,Bg5e6][%mdl 32]} Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O Be6 $2 {Mistake. c5 was best. A16: English Opening: 1...Nf6 with ...d5.} (7... Nxc3 8. dxc3 Qxd1 9. Rxd1 Nc6 10. Be3 Bf5 11. Nd2 Rfd8 (11... a5) 12. Nb3 $16 Bc2 13. Rdc1 Bf5 14. Nc5 Rab8 15. b4 (15. Bxc6 $5 bxc6 16. b4 $14) 15... Rd6 16. a4 b6 17. Ne4 Rd7 18. Nf6+ Bxf6 19. Bxc6 Rd6 20. b5 Bh3 21. Bf4 e5 22. Be3 $1 {Gelfand,B (2755)-Sutovsky,E (2675) Netanya 2009 ½-½}) (7... c5 8. d4 Nxc3 9. bxc3 cxd4 10. Nxd4 Nc6 11. Nxc6 bxc6 12. Qxd8) 8. Ng5 $1 $18 (8. d4 $2 {[%eval 200,0] 8.?g5} Nxc3 9. bxc3 Bd5 (9... c5) 10. Re1 (10. Qc2 $16) 10... f5 (10... Be4 $1 $14) 11. Qc2 c5 12. Bb2 (12. dxc5 $16 {And now Rd1 would win.} e6 13. Rd1) 12... cxd4 13. cxd4 Nc6 14. e3 h6 15. Nh4 Bxg2 16. Kxg2 (16. Nxg2 $14 e5 17. Rad1) 16... Kh7 17. g4 $2 {[#]} (17. Nf3 {and White stays safe.}) 17... e6 $1 $19 18. Kg3 Qg5 {[%csl Gf5][%CAl Rg5g4]} 19. h3 {[#]} fxg4 $2 (19... f4+ $1 $19 20. exf4 Qxf4+ 21. Kg2 Qf6) 20. hxg4 {f4 is the strong threat.} h5 21. Qe4 $1 hxg4 $2 {[%mdl 8192]} (21... Ne7 {and Black has nothing to worry.}) 22. Rh1 $18 {Nf3+ would kill now.} Bh6 {Da Cunha,P (1370)-Rayzel,S (1778) Pirai do Sul 2017 0-1 (61)}) 8... Nxc3 9. Nxe6 (9. bxc3 Bd5) (9. dxc3 Qxd1 10. Rxd1 Bc8 $14) 9... Nxd1 $146 {White is clearly better.} (9... fxe6 10. bxc3 c6 11. Qb3 Qd7 12. Bh3 Kh8 13. Bxe6 Qc7 14. d4 b6 15. e4 Nd7 {1-0 (27) Roque Sola,M (1727)-Vildosola Canales,M (1610) Montevideo 2016} 16. e5 a6 17. Bg5 Nb8 18. Rab1 b5 19. Qa3 c5 20. f4 Qc6 21. d5 Qc7 22. Rxb5 axb5 23. Qxa8 Nd7 (23... h6 24. Bh4 c4) 24. Qc6 {Roque Sola,M (1727)-Vildosola Canales,M (1610) Montevideo 2016 1-0}) 10. Nxd8 c6 11. Nxb7 (11. Rxd1 Rxd8 12. d3 Na6) 11... Nxb2 12. Rb1 Nc4 13. d3 {[%CAl Bd2d3,Bd3d4][%mdl 32]} Ne5 $6 {Inaccuracy. Nb6 was best.} (13... Nb6 14. Bd2 Rc8 15. Rfc1 e6 16. Nd6 Rd8 17. Bxc6 Nxc6 18. Rxc6 Bf8 19. Nb5) 14. Ba3 Rc8 15. Bxe7 (15. f4 Ng4 $16) 15... Na6 16. Rfc1 Re8 17. Ba3 Nc7 18. d4 {White is clearly winning.} Nb5 19. Bc5 (19. dxe5 Nxa3 20. Rb3 (20. Bxc6 Rxe5 21. Rb2 Rc8 $14) 20... Bxe5 21. Bxc6 (21. Rxa3 Bb2 $14) 21... Re7 $18) 19... Ng4 20. e3 Re6 21. Na5 Nf6 $6 {Inaccuracy. Nd6 was best.} (21... Nd6 22. Bxd6 Rxd6 23. h3 Nxe3 24. fxe3 Re8 25. Nc4 Rde6 26. Rb3 a5 27. Rf1) 22. Bxc6 {Weighted Error Value: White=0.01 (flawless) /Black=0.49 PRECISÃO LICHESS: BRANCAS 98% PRETAS 88%} 1-0 [Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.7"] [White "Marcello, Henrique Amaral Da"] [Black "Bruno Leonardo do Nasc. Dias"] [Result "0-1"] [ECO "A20"] [WhiteElo "1579"] [BlackElo "2017"] [Annotator "Stockfish 16.1"] [PlyCount "80"] [EventDate "2024.??.??"] {[%evp 15,80,15,21,9,30,32,27,30,31,32,96,60,58,61,80,75,80,7,5,-28,-26,-68,-63,-70,-80,-101,-83,-101,-97,-332,-133,-318,-324,-320,-314,-313,-308,-314,-314,-313,-311,-346,-347,-351,-350,-378,-369,-476,-476,-492,-339,-335,-310,-475,-347,-430,-263,-324,-322,-315,-254,-267,-241,-432,-346,-510,-261]} 1. c4 e5 2. g3 Nf6 3. Bg2 Be7 4. d3 c6 5. Nf3 d6 6. O-O O-O 7. Nc3 Nbd7 8. a3 a5 (8... Re8 9. b4 h6 10. Bb2 d5 11. cxd5 cxd5 12. Rc1 a6 {Inhibits Nb5.} 13. Qb3 $1 d4 $1 {[%CAl Rd4c3]} 14. Na4 Bf8 15. Nd2 (15. e3) 15... Rb8 16. Nc5 (16. Qc2) 16... b6 (16... Nxc5 $17 17. bxc5 Be6) 17. Nxd7 Bxd7 18. Nc4 Bg4 (18... h5 $15) 19. Rfe1 Qd7 20. Nd2 (20. e3 $5 {[%CAl Re3d4]}) 20... Be6 21. Qd1 Rbc8 22. Nc4 Qb5 $2 (22... Bxc4 $15 {stays ahead.} 23. Rxc4 a5) 23. a4 $1 {[%CAl Ra4b5] Ozen,D (2382)-Gallegos,C (2374) chess.com INT 2023 1-0 (31)}) 9. Bd2 {[#] A22: English Opening: 1...e5 2 Nc3 Nf6.} (9. Rb1 Re8 10. b4 axb4 11. axb4 Nf8 12. Bb2 Ng6 13. Qb3 h6 14. b5 Be6 15. Rfd1 Bf8 16. Ba3 Qc8 17. Nd2 Bh3 18. Nde4 Nxe4 19. dxe4 Nf4 20. Bxh3 Nxh3+ 21. Kg2 Qe6 22. Bc1 Ng5 23. Bxg5 hxg5 {Hera,I (2608)-Berkes,F (2648) Zuerich 2017 ½-½ (51)} 24. h3 g4 25. hxg4 Qxg4 26. Rh1 Qe6 27. Nd1 g6 28. Ne3 Be7 29. Rh3 Kg7 30. Rbh1 Rh8 {Prevents Rh7+.} 31. Rxh8 Rxh8 32. Rxh8 Kxh8 33. Qa4 Bg5 34. Qa8+ Kg7 35. Qxb7 Bxe3 36. bxc6 Qxc4 37. Kf3 Qc1 {[%CAl Bc1e1]} 38. Kg2 $1 Qe1 {½-½ Hera,I (2608)-Berkes,F (2648) Zuerich Chess Challenge op 6th 2017 (6)}) 9... Qc7 $146 (9... Nc5 10. Be3 Nfd7 (10... e4 11. dxe4 Nfxe4 12. Nxe4 Nxe4 13. Qc2 Nc5 14. b3 Bg4 15. b4 axb4 16. axb4 {And now Rxa8 would win.} Rxa1 17. Rxa1 Na6 18. b5 cxb5 19. cxb5 Nc5 20. Rd1 Qc7 21. Nd4 Rc8 22. h3 (22. Nf5 $18) 22... Bd7 $16 23. Kh2 Bf8 24. Qb1 {Hoellmann,L (2183)-Mueske,M (2210) Germany 2008 1-0 (31)}) 11. b4 Ne6 12. d4 f5 13. dxe5 (13. d5 $14 e4 14. Nd2) 13... Nxe5 14. Nxe5 dxe5 15. Qxd8 Rxd8 16. Bb6 Rd2 17. Bxa5 (17. b5) 17... Nd4 $17 18. Rfd1 (18. Rad1 $17 Nxe2+ 19. Nxe2 Rxe2 20. Rfe1 Rxe1+ 21. Rxe1) 18... Rc2 $1 $19 {[%CAl Rc2c3]} 19. Na4 Be6 $2 (19... Nxe2+ $19 20. Kh1 Be6) 20. Nb6 $2 (20. e3 $1 $15 Ne2+ 21. Kh1) 20... Ra6 21. Rab1 (21. e4) 21... Nxe2+ $19 22. Kh1 Kf7 23. c5 $2 (23. f3) 23... Ke8 (23... Bxc5 $1 {[%mdl 512]} 24. bxc5 Rxa5) 24. Bf1 {Gerzeni,R-Betko,L (2195) Martin 1996 0-1 (42)}) (9... Nh5 10. e4 Nhf6 11. h3 Nc5 12. Be3 Ne6 13. Qd2 h6 14. Nh4 Nd4 15. Bxd4 exd4 16. Ne2 Nh7 17. Nf3 c5 18. Nf4 Ng5 19. Kh2 (19. h4 $16 Nxf3+ 20. Bxf3) 19... Nxf3+ $1 20. Bxf3 Bg5 $1 21. h4 Bxf4 22. Qxf4 f5 23. exf5 Rxf5 24. Bd5+ {Heinzel,P (1965)-Budde,U (1833) Ruhrgebiet 2004 ½-½ (34)}) (9... Re8 10. b4 Bf8 11. Qc2 Qc7 12. b5 Rb8 13. Rfb1 d5 14. d4 $16 (14. cxd5 cxd5 15. Rc1 Qd8 {keeps the balance.} (15... Qb6 {1-0 (55) Tursunali,B (1836)-Valiyev,M (1569) Ak Bulak 2022} 16. Qa2 $1 $16 {Black must now prevent Ng5.} d4 17. Nd5 (17. Na4 $1 $16 {[%CAl Ra4b6]} Qd8 18. Ng5) 17... Nxd5 $1 18. Qxd5 {[%CAl Bc1c8] Strongly threatening Rxc8!} Nf6 19. Qc4 Be6 (19... h6) 20. Qa4 $1 $14 Nd7 $2 (20... Bd7 $14) 21. Qxa5 $18 Qxa5 22. Bxa5 Ra8 23. Bb4 Bxb4 24. axb4 Rxa1 25. Rxa1 Bd5 26. Nd2 Nb6 27. Ra7 {aiming for Bxd5.} Bxg2 (27... Rb8 {was worth a try.} 28. f4 exf4) 28. Kxg2 $18 Rb8 29. Ne4 Nc8 30. Ra2 f5 31. Nd2 Nd6 32. Nc4 Nxc4 33. dxc4 {Threatens to win with b6.} Kf7 34. c5 Ke6 35. Rc2 $1 Kd7 (35... Ra8 {is a better defense.} 36. c6 b6) 36. Rc4 Kc7 (36... b6 {might work better.} 37. f4 bxc5) 37. f4 $18 exf4 38. Rxd4 fxg3 39. hxg3 {1-0 Tursunali,B (1836)-Valiyev,M (1569) KAZ-ch U18 Ak Bulak 2022 (3)}))) 10. b4 axb4 11. axb4 {White has an edge.} Rxa1 12. Qxa1 b6 (12... Nb6 $14) 13. e4 Bb7 14. Qb2 d5 15. cxd5 cxd5 {[#]} 16. Rc1 $6 {Inaccuracy. Nh4 was best.} (16. Nh4 g6) 16... dxe4 17. dxe4 Qd6 18. Ne1 Qxb4 19. Qxb4 Bxb4 20. f3 Nc5 21. Rb1 {Against Nb3} Ba5 22. Kf2 $4 {Blunder. Rb2 was best.} (22. Rb2 Rd8 23. Nb1 g5 24. h3 h5 25. g4 Ba6 26. Bf1 Bxf1 27. Kxf1 Ne6) 22... Ba6 $2 {Mistake. Rd8 was best.} (22... Rd8 23. Rb2 Bxe4 24. Nxe4 Nfxe4+ (24... Ncxe4+ 25. fxe4 Bxd2 26. Ke2 Bxe1 27. Kxe1 Rd6 28. Ke2) 25. fxe4 Rxd2+ 26. Rxd2 Bxd2) 23. Ke3 $2 {Mistake. Rb2 was best.} (23. Rb2 Ra8 24. h4 g6 25. Nb1 Ne8 26. Na3 Nc7 27. Bxa5 bxa5 28. Bf1 Bxf1) 23... Rd8 $19 {[%CAl Bc5a4]} 24. Nd5 Nxd5+ 25. exd5 Bxd2+ 26. Kxd2 Rxd5+ 27. Ke3 Rd6 28. f4 exf4+ 29. Kxf4 g6 30. Ba8 Kg7 31. Ke5 $6 {Inaccuracy. Ng2 was best.} (31. Ng2 Bc4 32. g4 Ne6+ 33. Kg3 Rd3+ 34. Kf2 Rb3 35. Rc1 b5 36. Ne3 Nf4) 31... Rd8 32. Bc6 f6+ $6 {Inaccuracy. g5 was best.} (32... g5 33. Bd5 f6+ 34. Kd4 Bb7 35. Rxb6 Rxd5+ 36. Kc4 Re5 37. h4 Ba6+ 38. Kb4) 33. Kf4 Rd2 34. Bb5 $2 {Mistake. g4 was best.} (34. g4 Rd6 35. Bf3 Bc4 36. h4 b5 37. Ra1 Ra6 38. Rxa6 Nxa6 39. Ke3 b4) 34... Bc8 $6 {Inaccuracy. Bxb5 was best.} (34... Bxb5 35. Rxb5 Re2 36. Rxb6 Rxe1 37. Kf3 Nd3 38. g4 Ne5+ 39. Kf2 Rc1 40. h3) 35. Nf3 Rd6 $6 {Inaccuracy. Rc2 was best.} (35... Rc2 36. Re1 Rc3 37. Re7+ Kh6 38. g4 Ne6+ 39. Ke4 f5+ 40. gxf5 gxf5+ 41. Kxf5) 36. Ra1 Kh6 37. Ke3 Nd7 38. Ra7 Ne5 39. Nd4 $2 {Mistake. Nxe5 was best.} (39. Nxe5 Re6 40. Bf1 (40. Kf2 Rxe5 41. Bc4 Be6 42. Be2 Rd5 43. Re7 Rd6 44. h4 f5)) 39... Bd7 $6 {Inaccuracy. Ng4+ was best.} (39... Ng4+ 40. Kd3 Nxh2 41. Kc3 Bg4 42. Nc2 Nf3 43. Re7 Ne5 44. Rb7 Bd7 45. Bf1) 40. Bf1 $2 {Mistake. Bxd7 was best.} (40. Bxd7 Nxd7 (40... Rxd7 41. Rxd7 Nxd7 42. Kf4 Nc5 43. g4 Kg7 44. h4 Kf7 45. Nb5 Ke6) 41. Nb5 Re6+ 42. Kd4) 40... Be6 $4 {Blunder. Ng4+ was best. Weighted Error Value: White=0.65/Black=0.32 PRECISÃO LICHESS: BRANCAS 85% PRETAS 88%} (40... Ng4+ 41. Kd2 Rxd4+ 42. Kc3 Rd6 43. Be2 Nf2 44. Bf3 Bf5 45. Ba8 Be4 46. Kb4) 0-1 [Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.8"] [White "Dias, Matheus Braga"] [Black "Diogo, Ubirajara Correa Ju"] [Result "1-0"] [ECO "E61"] [WhiteElo "2013"] [BlackElo "1570"] [Annotator "Stockfish 16.1"] [PlyCount "79"] [EventDate "2024.??.??"] {[%evp 13,78,53,64,62,124,122,121,122,142,142,204,151,194,110,115,106,111,23,28,26,41,44,124,131,108,21,141,171,141,100,133,106,187,170,175,148,233,226,263,100,373,366,355,365,362,351,357,228,515,516,507,511,553,535,622,627,663,658,972,675,675,618,29981,29957,29994,29994,29999]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 O-O 5. g3 d6 6. Bg2 c6 7. e4 Bg4 8. h3 {E62: King's Indian: Fianchetto: 6...c6 and Panno Variation (6...Nc6) without ...a6.} Bd7 $6 {Inaccuracy. Bxf3 was best.} (8... Bxf3 9. Bxf3 (9. Qxf3 Nfd7) 9... e5 (9... Nbd7) 10. d5 $1 c5 (10... Na6 $16) 11. g4 $18 h6 12. g5 Nh7 13. h4 $1 h5 14. Be3 Nd7 15. Kd2 f6 16. gxf6 (16. Bxh5 $1 $18 {[%mdl 512]} gxh5 17. g6) 16... Rxf6 {[%CAl Bf6f4]} 17. Bg2 (17. Qe2 $16) 17... Qf8 18. Bh3 Bh6 19. Kd3 Bxe3 20. fxe3 Qe7 21. Qb3 Ndf8 22. Raf1 Rxf1 23. Rxf1 {Keymer,V (2698)-Van Foreest,J (2690) chess24.com INT 2022 ½-½ (67)} (23. Bxf1 a6 24. a4)) 9. O-O $16 e5 $146 (9... Re8 $2 {[%eval 122,0] 9...e5} 10. Bf4 (10. e5 $18 {is the precise move to win.}) 10... h6 11. Re1 Nh7 12. e5 Qc7 $2 (12... g5 $16) 13. Qc2 (13. exd6 exd6 14. Rxe8+ Bxe8 15. Ne4) 13... Na6 14. a3 {Prevents Nb4.} Bf5 15. Qd2 h5 (15... g5 $16) 16. exd6 $18 exd6 17. c5 Bf8 18. Nh4 Be6 19. Ne4 Qd7 {[%CAl Rd6c5]} 20. cxd6 Red8 21. Kh2 b6 22. b4 Nb8 {1-0 (22) Penuela,J (1681)-Navarro Solano,J Barranquilla 2020}) (9... Qc8 10. Kh2 b5 (10... c5 11. e5 dxe5 12. dxe5 Ne8 13. Nd5 Nc6 14. Re1 {aiming for Be3.} Be6 (14... Nc7 $16) 15. Bf4 $2 (15. Bg5 $18) 15... Nc7 $14 16. a3 Rd8 {[%CAl Rc7d5]} 17. Ng5 h6 18. Ne4 $2 {[%mdl 8192]} (18. Nxe6 {and White is okay.} Nxe6 19. Bd2) 18... Nxd5 $19 19. cxd5 Bxd5 20. Qc2 b6 21. h4 (21. Rad1 Nd4 22. Qc1) 21... Qf5 $2 (21... Nxe5 $19 22. Bxe5 Bxe5) 22. Rac1 $2 {[%mdl 8192]} (22. Bh3 Qh5 23. Qd1 Qxd1 24. Raxd1) 22... Nxe5 23. Bxe5 Bxe5 24. Bh3 {Dimaki,E (1150)-Kappa,E (1070) Tornelo INT 2021 0-1} (24. Nxc5 {might work better.} Bxg2 25. Qxf5 gxf5 26. Rxe5)) 11. e5 Ne8 12. cxb5 cxb5 13. exd6 Nxd6 14. Ne5 Nc6 15. Qf3 {[%CAl Re5c6]} Bxe5 (15... Nxd4 $16 16. Qxa8 Qxa8 17. Bxa8 Bxe5) 16. dxe5 $18 Nf5 17. Bf4 (17. Rd1 $18) 17... Nfd4 18. Qd1 (18. Qe4 $18) 18... Rd8 {[#]} 19. Nd5 (19. Rc1 $1 $16) 19... Be6 20. Qxd4 $1 Bxd5 21. Qc5 Bxg2 22. Kxg2 Qb7 $1 {½-½ (22) Pavlicek,P (1904)-Pokorny,J (1804) Prague CZE 2024}) 10. Bg5 $146 {White is better.} (10. dxe5 dxe5 11. Be3 (11. Nxe5 Be6 $14) (11. Qe2 Nh5 12. Rd1 Qc8 13. Kh2 Na6 14. b3 Nc7 15. Ba3 Re8 16. Rd3 {0-1 (53) De Pablos Fernandez,M (1969)-Otano Villanueva,J (1675) Huarte 2013}) 11... Re8 $14) 10... h6 11. Be3 (11. dxe5 $6 hxg5 12. exf6 Qxf6) 11... a5 $6 {Inaccuracy. Re8 was best.} (11... Re8 12. Qd2 Qc8 13. Kh2 Kh7 14. Ng1 exd4 15. Bxd4 c5 16. Bxf6 Bxf6 17. f4) 12. Qd2 Kh7 13. Rfd1 $6 {Inaccuracy. dxe5 was best.} (13. dxe5 dxe5 14. Nxe5 Be6 15. Qe2 Qe7 16. Rad1 Re8 17. g4 Nfd7 18. Nxd7 Nxd7) 13... Re8 $16 14. dxe5 dxe5 15. Na4 $6 {Inaccuracy. Bc5 was best.} (15. Bc5) 15... Nxe4 16. Qc2 Nf6 17. Qb3 $36 {[%mdl 2048] Black is under pressure.} b5 $6 {Inaccuracy. e4 was best. [#]} (17... e4 18. Nd2) 18. cxb5 $1 $16 cxb5 19. Nb6 $6 {Inaccuracy. Nc5 was best.} (19. Qxf7 $2 Rf8 20. Qb3 bxa4 $19) (19. Nc5 e4 20. Nd4 (20. Qxf7 Re7 $17) 20... Re7 21. Nxb5 Na6 22. Nxd7 Nxd7 23. Rd6 Nb4 24. Bxe4 Rb8) 19... Ra6 $2 {Mistake. a4 was best.} (19... a4 20. Qb4 (20. Qxf7 Re7) 20... Ra7) 20. Nxd7 (20. Qxf7 $2 Re7 21. Qb3 (21. Rxd7 $2 Nbxd7 22. Qb3 Rxb6 $19) 21... Rxb6 $19) 20... Nbxd7 21. Qxb5 Rae6 22. Rac1 Qb8 $6 {Inaccuracy. e4 was best.} (22... e4 23. Nd4 Rb6 24. Qe2 Rd6 25. Nb5 Rd5 26. Nc3 Rxd1+ 27. Rxd1 Qa8 28. Bf4) 23. Qxb8 Rxb8 24. b3 a4 (24... Nb6 $16 25. Rc7 Kg8) 25. bxa4 $18 Rb2 26. Rc7 $2 {Mistake. Rd2 was best.} (26. Bf1 $18 {and White stays clearly on top.}) (26. Rd2 Rb4 27. Bf1 Nb6 28. a5 Nbd5 29. Bc5 Ra4 30. a6 e4 31. Bb5 Ra5) 26... Rxa2 $4 {[%mdl 8192] Blunder. e4 was best.} (26... e4 27. Nd2 Rd6 28. Bf4 Rd5 29. a3 Ra2 30. Bf1 Ne5 31. Bxe5 Rxe5 32. Nc4) 27. Rdxd7 Nxd7 28. Rxd7 Kg8 29. Rd8+ Kh7 30. Ra8 $2 {Mistake. Rd7 was best.} (30. Rd7 f6 31. Nd2 Rxa4 32. Bd5 Re8 33. Ne4 Ra6 34. Nc5 Rb6 35. Kg2 f5) 30... Rc6 $4 {Blunder. e4 was best. [#]} (30... Rd6 31. Ra7 Kg8 32. Ra8+ Kh7) (30... e4 31. Nd4) 31. Ng5+ $1 {[%mdl 512]} hxg5 32. Bxc6 f6 33. a5 {[%CAl Ba4a5,Ba5a6][%mdl 32]} Kh6 34. h4 Kh5 35. hxg5 fxg5 36. a6 {a7 would kill now.} Kg4 37. Kg2 {White threatens Be4 and mate.} Ra1 38. Ra7 {White mates.} Bh6 $4 {Checkmate is now unavoidable. Kf5 was best.} (38... Kf5 39. Rf7+ Ke6 40. Rxg7 Rxa6 41. Rxg6+ Ke7 42. Bxg5+ Kf8 43. Rd6 e4 44. Be3) 39. Rf7 {[%csl Gf7,Gg2][%CAl Rc6f3]} Rxa6 40. Bf3# {Weighted Error Value: White=0.38/Black=0.87 PRECISÃO LICHESS: BRANCAS 93% PRETAS 87%} 1-0 [Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.9"] [White "De Souza, Mauro Araujo Lima"] [Black "Pessoa, Vitor Henrique Leop"] [Result "0-1"] [ECO "A48"] [WhiteElo "1511"] [BlackElo "1998"] [Annotator "Stockfish 16.1"] [PlyCount "77"] [EventDate "2024.??.??"] {[%evp 9,77,-36,-23,-24,7,1,3,7,12,-2,-5,-24,-21,-64,-65,-64,-69,-71,-70,-72,-32,-50,-50,-48,-35,-49,-48,-53,-45,-61,-55,-194,-198,-312,-297,-346,-337,-387,-391,-429,-424,-516,-514,-514,-500,-513,-508,-522,-489,-512,-511,-516,-498,-498,-495,-491,-494,-491,-485,-505,-507,-524,-504,-511,-496,-511,-497,-537,-535,-532]} 1. Nf3 Nf6 2. d4 g6 3. Nbd2 d5 4. b3 Bg7 5. Rb1 $146 (5. Bb2 a5 (5... c5 6. dxc5 Qa5 7. a3 Qxc5 8. b4 Qd6 9. c4 O-O 10. e3 Nbd7 11. Be2 dxc4 12. Nxc4 Qxd1+ 13. Rxd1 b6 14. Nd4 Bb7 15. f3 Nd5 16. g3 Ne5 17. Nxe5 Bxe5 18. Kf2 Rac8 19. Rc1 Bg7 {Levin,G (2460)-Sokolovsky,Y (2516) Benasque ESP 2024 ½-½ (46)}) (5... O-O 6. g3 c5 7. dxc5 (7. e3 Qa5 8. c3 Bf5 9. h3 Ne4 10. Nxe4 Bxe4 11. Be2 Nc6 12. O-O h6 13. Nd2 cxd4 14. exd4 Bf5 15. Kh2 Rad8 16. f4 a6 17. Bg4 Bxg4 18. Qxg4 e6 19. Qe2 Na7 {Balla,Z-Schreiber,I Budapest 1937 1-0 (56)}) 7... Qa5 8. Bg2 Ne4 9. Bxg7 Kxg7 10. O-O Nc3 11. Qe1 Qxc5 12. e3 Nc6 13. Nb1 Ne4 14. c3 e5 15. b4 Qe7 16. Nfd2 Nf6 17. e4 d4 18. b5 dxc3 19. Nxc3 Nd4 {Lichtenstein,B-Mueller,H Vienna 1935 0-1 (47)}) (5... Nbd7 6. c4 c6 7. Qc2 O-O 8. e3 b6 9. cxd5 cxd5 10. Rc1 Bb7 11. Qc7 Qb8 12. Bb5 Rc8 13. Qxb8 Raxb8 14. Ke2 a6 15. Bd3 Kf8 16. a4 h6 17. b4 Ne4 18. b5 a5 19. Bb1 Nxd2 {Fenoglio,V-Rotunno,E Montevideo 1938 1-0 (52)}) (5... Bf5 6. e3 O-O 7. Bd3 Bxd3 8. cxd3 Nfd7 9. b4 c6 10. Nb3 Na6 11. Qd2 Nc7 12. O-O Nb5 13. a4 Nd6 14. Ba3 a6 {½-½ (43) Firouzja,A (2744)-Vachier Lagrave,M (2718) Chess.com INT 2024}) 6. a4 O-O 7. e3 Bf5 8. Be2 Nc6 9. O-O Nb4 10. Ne1 Ne4 11. c3 Nxd2 12. Qxd2 Nc6 13. Nd3 e5 14. Nxe5 Nxe5 15. dxe5 Bxe5 16. Rfd1 Qd6 17. Ba3 c5 18. Qxd5 Qxd5 19. Rxd5 Bxc3 {Carlsen,M (2872)-Vachier Lagrave,M (2780) London 2019 0-1 (54)}) 5... O-O {[%CAl Bc7c5]} (5... Ne4 {is interesting.} 6. Bb2 c5 7. e3 Qa5) 6. e3 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Re8 7. Bb2 Bf5 8. Be2 {The position is equal.} Ne4 9. Rc1 c5 10. O-O Nc6 11. a3 cxd4 12. Nxd4 Nxd4 13. exd4 Bh6 14. f4 Qd7 15. Nxe4 Bxe4 16. Bd3 e6 17. Qe2 Bxd3 18. Qxd3 Rac8 19. h4 Qe7 20. Rf3 $2 {Mistake. g3 was best.} (20. h5 $15) (20. g3 Bg7) 20... Qxh4 $19 21. Rh3 $6 {Inaccuracy. Bc3 was best.} (21. Rcf1 Qg4 22. c3) (21. Bc3 Bg7 22. Bd2 h5 23. a4 Qd8 24. c3 Bf6 25. Ra1 Rc6 26. Rh3) 21... Qxf4 22. Rd1 Bg7 23. Bc1 Qe4 24. c4 Qxd3 {Black is clearly winning.} 25. Rdxd3 dxc4 26. bxc4 Rxc4 27. Be3 Rd8 28. d5 Rxd5 29. Rxd5 exd5 30. Bxa7 Bd4+ 31. Bxd4 Rxd4 {[%mdl 4096] Endgame KR-KR} 32. Rc3 Ra4 33. Kf2 Kg7 34. Ke2 Kf6 35. Kf3 Ra7 36. Ke2 Ke6 37. Kd3 Kd6 38. Kd4 Ra4+ 39. Kd3 {Weighted Error Value: White=0.31/Black=0.08 (flawless) PRECISÃO LICHESS: BRANCAS 92% PRETAS98%} 0-1 [Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.10"] [White "Jorge Ant. Torres Chaves"] [Black "Joao, Carlos Reginaldo E"] [Result "1-0"] [ECO "B21"] [WhiteElo "1985"] [BlackElo "1470"] [Annotator "Stockfish 16.1"] [PlyCount "67"] [EventDate "2024.??.??"] {[%evp 9,66,0,0,-4,78,51,160,135,220,184,212,223,449,9,15,0,0,0,33,32,55,-31,17,0,42,39,38,31,45,42,59,-21,-18,-30,-9,-223,-201,-214,-107,-111,-35,-37,-35,-34,336,322,476,464,512,515,609,603,29992,548,29994,29995,29996,29996,29999]} 1. e4 c5 2. d4 cxd4 3. c3 {[%CAl Bc2c3,Bc3d4][%mdl 32]} e5 4. Bc4 Nf6 5. Nf3 Nc6 6. cxd4 {B21: Sicilian: 2 f4 and Morra Gambit.} Bd6 $2 {Mistake. Bb4+ was best.} (6... Bb4+ 7. Bd2 (7. Nc3 Nxe4 8. O-O Bxc3 9. dxe5 Nxe5 10. Bd5 Nf6 11. bxc3) 7... Bxd2+ 8. Nbxd2 exd4) 7. Nc3 $6 {Inaccuracy. dxe5 was best.} (7. dxe5 Nxe5 8. Qxd6 Nxc4 9. Qb4 d5 10. exd5 Qxd5 11. O-O Be6) 7... a6 $6 {Inaccuracy. exd4 was best.} (7... exd4 8. Nxd4 O-O) 8. O-O {White is clearly better.} b5 $6 {Inaccuracy. exd4 was best.} (8... exd4 9. Nxd4 (9. Nd5 O-O 10. Re1 Bb4 11. Nxb4 Nxb4 12. e5 d5 13. Bb3 Ne4 14. Qxd4) 9... O-O) 9. Bb3 $6 $146 {Inaccuracy. Bd5 was best. [#] dxe5 is the strong threat.} (9. Bd5 exd4 {was worth a try.} (9... Rb8 10. Bxc6 dxc6 11. dxe5 Bxe5 12. Qxd8+ Kxd8 13. Nxe5 Be6 14. Nxc6+ Kc7 15. Nxb8 Kxb8 {1-0 (22) Finol Berrueta,D-Valencia Gantiva,C Cuenca 2006} 16. Bf4+ Kc8 17. a3 h6 18. Rfd1 g5 19. Be5 Bb3 20. Bxf6 Bxd1 21. Bxh8 Bc2 22. Rc1 {1-0 (22) Finol Berrueta,D-Valencia Gantiva,C Cuenca 2006}) (9... Nxd5 10. exd5 Nxd4 11. Nxd4 exd4 12. Re1+ Kf8 13. Ne4 Be5 14. Bg5 Qb6) 10. e5 Nxd5 11. Nxd5 Be7) 9... O-O 10. dxe5 Nxe5 $4 {Blunder. Bxe5 was best.} (10... Bxe5 11. Nxe5 (11. Nd5 d6 12. Bg5 Be6 13. Rc1 Rc8 14. Nxe5 dxe5 15. Nxf6+ gxf6 16. Qxd8) 11... Nxe5) 11. Nxe5 $4 {Blunder. Qxd6 was best.} (11. Qxd6 Nxf3+ 12. gxf3 a5 13. Bg5 Ra6 14. Bxf6 Qe8 15. Qd4 Rxf6 16. Kh1 d6) 11... Bxe5 12. h3 Bb7 13. Bg5 Qc7 14. Rc1 {[%CAl Bc3b5]} Qb6 15. Qe2 $6 {Inaccuracy. Be3 was best.} (15. Be3 Qd6 (15... Qd8) 16. f3) 15... Rfe8 {[%CAl Bf6e4]} (15... Bxc3 $5 16. bxc3 Nxe4 $15) 16. Be3 Qd8 17. f3 Rc8 18. Rfd1 {Against d5} d6 19. Qf2 Nh5 20. f4 $6 {Inaccuracy. Qd2 was best.} (20. Ne2 $14) (20. Qd2 h6 21. Ne2 Qe7 22. g4 Nf6 23. Nd4 Rxc1 24. Rxc1) 20... Bxc3 21. bxc3 {[%CAl Be4e5]} Rxe4 22. g4 $4 {Blunder. Bc2 was best.} (22. Bc2) 22... Nf6 23. g5 Nh5 $6 {Inaccuracy. Qd7 was best.} (23... Qd7 24. Kh2 (24. gxf6 $2 Qxh3 25. Bd5 Bxd5 $19) 24... Rce8 25. Re1 Nh5 26. Bc2 R4e7 27. c4 Bc8 28. f5 bxc4 29. Bd4) 24. Bc2 $17 Rec4 $6 {Inaccuracy. Re7 was best.} (24... Re8 $17 {And now ...g6 would win.} 25. Bf5 Rc4) (24... Re7 25. Bf5) 25. Bd4 $15 {[%CAl Be3d4,Bd4c3,Bc3e5][%mdl 32]} Qd7 26. Kh2 {[%CAl Bd4e5]} Rxc3 $4 {[%mdl 8192] Blunder. g6 was best.} (26... g6) 27. Bxc3 $18 g6 $6 {Inaccuracy. Rxc3 was best.} (27... Rxc3 28. Bxh7+ Kxh7 29. Rxc3 g6) 28. Be5 (28. Qd4 Rxc3 29. Qxc3 a5) 28... d5 29. Bb3 Rxc1 30. Rxc1 {Black must now prevent Rc7.} Qf5 $4 {Checkmate is now unavoidable. Bc8 was best.} (30... Bc8 31. f5 Qe8 32. Re1 Bxf5 33. Bxd5 h6 34. Bf3 Qc8 35. Bxh5 gxh5 36. g6) 31. Rc7 $4 {Lost forced checkmate sequence. Qb6 was best.} (31. Qb6 Qd7 32. Rc7 (32. Qc7 Nf6 33. gxf6 Bc6 34. Rxc6 Qxc7 35. Rxc7 h5 36. Bxd5 a5) 32... Qe8 33. Rxb7 h6 34. Rb8 Ng7 35. Qf6 Kf8 36. Bxd5 Ne6 37. Qh8+ Ke7 38. Qxe8#) 31... d4 $4 {Checkmate is now unavoidable. Bc8 was best.} (31... Bc8 32. Qe3 Bd7 33. Ra7 Ng7 34. Ra8+ Ne8 35. Bc3 Kf8 36. Rd8 b4 37. Bf6) 32. Rxb7 {White mates.} Qc8 $4 {Checkmate is now unavoidable. Nf6 was best. [#]} (32... Nf6 33. Rb8+ Kg7 34. Bxf6+ Qxf6 35. gxf6+ Kxf6 36. Qxd4+ Kf5 37. Qe5#) 33. Qxd4 $1 Qxb7 (33... h6 34. Qd7) 34. Qd8# {Weighted Error Value: White=0.70/Black=1.10 PRECISÃO LICHESS: BRANCAS 84% PRETAS 78%} 1-0 [Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.11"] [White "Paulo, Henrique Pfitzner"] [Black "Israel, Flavio Feliciano Ol"] [Result "0-1"] [ECO "A45"] [WhiteElo "1407"] [BlackElo "1967"] [Annotator "Stockfish 16.1"] [PlyCount "37"] [EventDate "2024.??.??"] {[%evp 9,37,-26,-26,-51,-47,-46,-46,-99,-51,-54,-49,-62,-46,-50,-50,-44,-42,-201,-153,-468,-464,-485,-497,-618,-596,-644,-644,-667,-596,-697]} 1. d4 Nf6 2. Bg5 c5 3. Bxf6 exf6 4. d5 $6 {Inaccuracy. dxc5 was best.} (4. dxc5 Bxc5 5. e3 Nc6 6. Bc4 Qb6 7. Bb3 d5 8. Qxd5 Be6) 4... d6 5. Nf3 (5. c4 f5 6. Nc3 g6 7. e3 Bg7 8. Bd3 Nd7 9. h4 h5 10. Nf3 Ne5 11. Be2 Ng4 12. Qd2 Bd7 13. Ng5 Qe7 14. a4 Bf6 15. a5 Bxg5 16. hxg5 Qxg5 17. Nb5 Bxb5 18. cxb5 O-O 19. Ra4 Rae8 {Truskavetsky,A (2399)-Cheparinov,I (2686) Chess.com INT 2020 0-1 (65)}) (5. e4 g6 6. Nf3 Bg7 7. Nc3 f5 8. Bd3 fxe4 9. Bxe4 O-O 10. O-O Nd7 11. Re1 Ne5 12. Nxe5 Bxe5 13. Qd2 Qf6 14. Rab1 Bd7 15. Nd1 b5 16. c3 a5 17. Ne3 h5 18. Nf1 b4 19. c4 a4 {Uyttenhove,P (1765)-Gudok,V (2084) Helmond NED 2024 0-1 (32)}) 5... g6 6. c3 $146 {A45: Trompowsky Attack.} (6. Nc3 Bg7 7. Qd2 Bd7 (7... O-O $15) 8. Qe3+ Qe7 9. Qxe7+ Kxe7 10. e3 f5 11. Kd2 a6 {Black wants to play ...b5.} 12. a4 $1 {Against b5} b6 13. Bd3 Re8 14. h4 h6 (14... Bc8) 15. Rhe1 {[%CAl Bh4h5]} Kf8 16. Ra3 (16. h5 $14) 16... Rc8 (16... Bc8) 17. Bc4 (17. h5 $5) 17... Be8 18. e4 Bxc3+ 19. Kxc3 (19. bxc3 {remains equal.} fxe4 20. Rxe4) 19... fxe4 $17 20. Rxe4 Nd7 {Le Borgne,P (2165)-Rasca,M Agneaux 2001 ½-½ (65)}) (6. c4 Bg7 7. Nc3 O-O 8. e3 Nd7 9. h4 f5 10. Qc2 Qa5 11. Bd3 Ne5 12. Nxe5 Bxe5 13. f4 Bxc3+ 14. bxc3 Re8 15. Kd2 Bd7 16. Qd1 {[#]} (16. a4) 16... Qa3 (16... b5 $1 $17 {aiming for ...bxc4.} 17. h5 bxc4 18. Bxc4 Re4) 17. Qc1 Qa4 18. Qd1 Qa5 19. h5 Qa3 20. Qc1 Qxc1+ {Buchta,A (1324)-Kulpa,Z Szczyrk 2012 ½-½ (51)}) 6... Bg7 7. g3 O-O 8. Bg2 (8. a4 $15) 8... Nd7 {[%CAl Bb8d7,Bd7b6,Bb6d5,Bd5e3,Be3f1][%mdl 32]} 9. O-O Re8 $146 (9... Ne5 10. Nbd2 Re8 11. Ne1 f5 12. e3 Bd7 13. a4 b5 14. a5 b4 15. c4 h5 {1-0 (73) Escobar Forero,A (2510)-Shahade,G (2476) Chess.com INT 2021}) 10. Nbd2 b5 11. a4 bxa4 12. Rxa4 Nb6 13. Rh4 $2 {Mistake. Ra5 was best. [#]} (13. Ra2 $15) (13. Ra5 Nxd5 14. Nc4 Be6 15. Nfd2 f5 16. Qa1 Rb8 17. Rxa7 Ne7 18. Rd1 d5) 13... f5 {Strongly threatening ...Bf6.} (13... Nxd5 14. Nd4 g5 15. Bxd5 $15) 14. Ng5 $4 {Blunder. e4 was best.} (14. e4 a5 15. Rf4 g5 16. Rxf5 Bxf5 17. exf5 a4 18. h4 gxh4 19. Nxh4 a3) 14... Qxg5 $19 {Black is clearly winning.} 15. f4 Qe7 16. Bh3 Nxd5 17. Bg2 Ne3 18. Qe1 Nxf1 19. Bxf1 {Weighted Error Value: White=0.62/Black=0.16 (very precise) PRECISÃO LICHESS: BRANCAS 77% PRETAS 97%} 0-1 [Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.12"] [White "Marcelo, Dos Santos Silva"] [Black "Carlos Alberto Braga Mendes"] [Result "1/2-1/2"] [ECO "A28"] [WhiteElo "1965"] [BlackElo "1371"] [Annotator "Stockfish 16.1"] [PlyCount "35"] [EventDate "2024.??.??"] {[%evp 9,35,22,23,17,21,2,16,0,0,4,57,37,76,90,94,-19,171,169,158,3,233,215,212,32,45,-135,217,198]} 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. e3 Be7 5. d4 exd4 6. exd4 {A28: English Opening: Four Knights Variation.} d5 7. Be2 {[%CAl Bf1e2,Be2b5,Bb5c6][%mdl 32]} (7. cxd5 Nxd5 8. Bd3 Bg4 9. O-O Nb6 10. h3 Bh5 11. Re1 {Black must now prevent g4.} O-O $1 12. Be3 {[%CAl Bd4d5]} Nb4 {Inhibits d5.} 13. Bb1 c6 14. a3 N4d5 15. Ba2 Nxc3 16. bxc3 Bxa3 17. g4 Bg6 {Strongly threatening ...Bb2.} 18. Bg5 Qc7 $1 19. Ne5 Bb2 20. Nxg6 hxg6 21. Re7 Qd6 {Le,Q (2704)-Zhao,J (2627) China 2019 ½-½ (65)}) (7. h3 O-O 8. Be3 Re8 9. a3 Bd6 {[%CAl Be8e3]} 10. cxd5 Rxe3+ $2 (10... Ne7) 11. fxe3 $16 Bg3+ 12. Kd2 Nxd5 13. Bd3 Nf6 (13... Nxc3 $16 {was called for.} 14. bxc3 Na5) 14. Qc2 Be6 15. Ne4 (15. Ne2 $18 Qd6 16. e4) 15... Nxe4+ $16 16. Bxe4 Na5 {[%CAl Bc7c5]} 17. Ke2 c5 18. dxc5 Rc8 (18... Qe7 $16) 19. b4 Nc6 20. Rad1 Qf6 21. Rhf1 Qh6 {Fichter,F (2303)-Filgueira,H (2283) chess.com INT 2024 1-0 (38)}) 7... O-O 8. O-O {The position is equal.} Be6 9. c5 $146 (9. b3 Ne4 10. Bb2 Bf6 11. Rc1 Nxc3 12. Bxc3 Bg4 13. h3 Bh5 14. Ne5 Bxe2 15. Qxe2 Bxe5 16. dxe5 {Hoping for Rfd1.} d4 17. Rcd1 {Threatens to win with Qe4.} Qh4 {Against Qe4} 18. Bb2 {[%CAl Bb3b4]} Rad8 19. f4 {[%CAl Bb3b4]} Rfe8 20. Qf2 (20. b4 $14) 20... Qxf2+ 21. Rxf2 f6 22. Rfd2 {next exf6 is good for White.} fxe5 23. fxe5 Rxe5 {Cardoso Cardoso,J (2313)-Tsoi,D (2429) Porto Carras 2018 ½-½}) 9... b6 $6 {Inaccuracy. a6 was best.} (9... Ne4) (9... a6) 10. Bb5 $146 (10. cxb6 axb6 11. Bf4 Bd6 12. Bxd6 Qxd6 13. a3 Na7 14. Rc1 c5 15. Na4 c4 16. b3 {½-½ (30) Barysheva,A-Zapankova,G Dagomys 2004}) 10... Na5 11. b4 Nc4 12. Re1 $2 {Mistake. Bc6 was best.} (12. Bc6 a5 13. Bxa8 axb4 14. Nb5 Qxa8 15. Nxc7 Qc6 16. cxb6 Ne4 17. Nxe6 fxe6) 12... a6 $4 {Blunder. a5 was best. [#]} (12... a5 13. bxa5 bxc5 14. a6 c6 15. Bxc6 Rxa6 16. Bb5 Ra8 17. a4 Ne4 18. Nxe4) 13. Bc6 $18 Rb8 14. Ne5 $2 {Mistake. a3 was best.} (14. a3) 14... Nd7 $4 {Blunder. Ne4 was best.} (14... Ne4 15. Nxe4 (15. Nxd5 Bxd5 16. Bxd5 Qxd5) 15... Nxe5 16. dxe5 dxe4 17. Be3 Qxd1 18. Raxd1 bxc5 19. bxc5 f5 20. exf6) 15. Nxc4 $6 {Inaccuracy. Nxd7 was best.} (15. Bxd5 Ndxe5 16. dxe5 bxc5 $15) (15. Nxd7 Bxd7 16. Bxd5 b5 17. Qf3 Bf6 18. Bf4 Be6 19. Rad1 Nb2 20. Rd2 Nc4) 15... dxc4 16. Qe2 $2 {Mistake. Bf4 was best. [#]} (16. Bf4 Bf6 17. Ne4 bxc5 18. bxc5 c3 19. Qa4 Rb2 20. d5 Bf5 21. Bxd7 Bxd7) 16... Bf6 $1 $14 17. Rd1 $2 {Mistake. Qe3 was best.} (17. Qe3 a5) 17... Rc8 $4 {[%mdl 8192] Blunder. bxc5 was best.} (17... bxc5 18. Bxd7 (18. bxc5 Nxc5 19. Ba3 Nd3 $17) 18... Qxd7 19. bxc5 Rfe8) 18. Bb2 {Weighted Error Value: White=0.83/Black=1.00 PRECISÃO LICHESS: BRANCAS 80% PRETAS 66%} 1/2-1/2 [Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.13"] [White "Arnaldo Soares De Oliveira"] [Black "Otavio, De Souza Laba"] [Result "0-1"] [ECO "C68"] [WhiteElo "1365"] [BlackElo "1907"] [Annotator "Stockfish 16.1"] [PlyCount "26"] [EventDate "2024.??.??"] {[%evp 9,26,-53,-47,-107,148,0,117,116,222,-70,-79,-77,-26,-25,-20,-22,-14,-19,-15]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. Nxe5 Qd4 {[%csl Be4,Be5]} (5... Qg5 6. Nf3 Qxg2 7. Rg1) 6. Nd3 {[#] C68: Ruy Lopez: Exchange Variation, sidelines.} (6. Nf3 Qxe4+ 7. Qe2 Qxe2+ 8. Kxe2 Nf6 9. d4 (9. Re1 {remains equal.}) 9... Bf5 $17 10. Bf4 (10. c4 $17 {keeps fighting.}) 10... Bd6 $2 (10... Nd5 $19 11. Bg3 Bxc2) 11. Bxd6 $15 cxd6 12. c4 (12. Rc1 $15) 12... O-O (12... Kd7 $17 13. Rd1 Rhe8+ 14. Kf1 b5) 13. Re1 (13. Nc3 $15) 13... Rfe8+ $19 14. Kf1 Bd3+ $1 15. Kg1 Rxe1+ 16. Nxe1 Bxc4 17. Nc3 Re8 18. b3 Be6 19. Nd3 Bf5 20. Nf4 (20. Nb2) 20... g5 $19 21. Nfe2 b5 22. b4 Nd5 23. h3 $2 (23. a3) 23... Nxb4 $19 24. g4 Bd3 25. Ng3 Bc4 26. a3 Nc2 27. Rd1 Nxa3 28. Nf5 Re6 29. d5 cxd5 30. Nxd5 f6 (30... Bxd5 31. Rxd5 Nc4) 31. Nb6 (31. Nc7 b4 32. Nxe6 Bxe6 33. Nd4) 31... Nc2 32. Rxd6 $2 (32. Nxc4 {is a better defense.} bxc4 33. Kf1) 32... Rxd6 $19 33. Nxd6 Kf8 34. Nbxc4 bxc4 35. Nxc4 Ke7 {Gonzalez Grima,F (1435)-Perez Viaplana,J (1529) Barcelona 2024 0-1}) (6. Qh5 $2 g6 7. Qg5 Qxe4+ 8. Qe3 Qxg2 9. Nf3+ Ne7 $19) (6. Ng4 $15) 6... Nf6 $4 $146 {Blunder. Qxe4+ was best.} (6... Qxe4+ 7. Kf1 (7. Qe2 Qxe2+ (7... Bf5 8. Nc3 Qxe2+ 9. Kxe2 O-O-O 10. Ne1 Ne7 11. d3) 8. Kxe2 Bf5 (8... Bd6 {Against Ne5} 9. Nc3 Be6 (9... Bf5 $17 10. b3 O-O-O) 10. b3 (10. Ne4) 10... Nf6 11. Bb2 O-O 12. Rae1 Rfe8 13. Kd1 Nd5 (13... Bf5 $15) 14. Nxd5 Bxd5 15. f3 Rxe1+ 16. Kxe1 Re8+ 17. Kd1 f6 18. Re1 (18. Bd4) 18... Rxe1+ $17 19. Kxe1 Bxh2 20. Nc5 Bg3+ 21. Kf1 {Niedermowwe,O-Richter,M Germany 1997 ½-½ (35)} (21. Ke2 $17)) (8... Nf6 9. Re1 Bd6 $17 {aiming for ...Bf5.} (9... Be6 10. Kf1 Bd6 11. b3 $15 (11. Kg1 Kd7 (11... O-O 12. Nc3 Bf5 13. h3 $17 (13. Re3 Ng4 14. Re2 Bxd3 15. cxd3 Nxh2 16. f3 (16. Ne4 Rae8 $19 {has better winning chances. White must now prevent ...f5.} (16... Rfe8 17. f3 $17 (17. Re3 Ng4 18. Nxd6 cxd6 19. Re4 f5 20. Re3 $19 (20. Rb4 Re1# {0-1 (20) Eichmann,P-Schuricht,P (1366) Krefeld 2022}))) 17. f3 f5))) 12. b3 Rhe8 13. Ba3 {[#]} Bf5 $1 {[%CAl Rf5d3]} 14. Rxe8 (14. Bxd6 $17 Bxd3 15. Be5 Bxc2 16. Nc3) 14... Rxe8 $19 15. g3 $2 (15. Bxd6 {is a better chance.} Bxd3 16. Nc3) 15... Bxd3 $19 16. cxd3 Re1+ 17. Kg2 Bxa3 18. Nxa3 Rxa1 19. Nc4 Rxa2 20. Ne5+ Ke6 21. Nc4 {Yildiz,I-Bodur,K Adapazari 2022 0-1 (37)})) 10. Kf1+ Be6) 9. f3 (9. Ne1 O-O-O 10. d3 Nf6 11. Bg5 Be7 12. Nd2 Rhe8 13. Nc4 h6 14. Bh4 (14. Bd2) 14... Nd5 15. Bxe7 Rxe7+ 16. Kf3 Rde8 17. g4 Bd7 18. Ng2 f5 19. gxf5 Rf7 20. Nce3 Bxf5 21. Kg3 {Logie,D (2027)-Geirnaert,S (2362) Westerlo 2010 0-1 (33)}) (9. Nc3 Nf6 10. Re1 O-O-O 11. Ne5 Be6 $2 (11... Bd6 $19 12. f4 Bxc2) 12. d3 Bd6 13. Bf4 $2 {[%mdl 8192] [#]} (13. Kf1 {and White is okay.}) 13... Rhe8 $2 (13... Nh5 $1 $19 {[%CAl Rh5f4]} 14. g3 f6) 14. Kf1 $15 Ng4 15. Nxg4 Bxg4 16. Bxd6 cxd6 17. h3 Bf5 18. Re2 Rxe2 19. Nxe2 Re8 20. Re1 Kd8 21. Ng3 {Van der Blom,F-Van Zutphen,A Hengelo 1999 1-0 (55)}) 9... Bd6 10. b3 (10. Ne1 $17) 10... Ne7 11. Bb2 f6 (11... O-O-O $19 {is more deadly.} 12. Kd1 Rhe8) 12. Kf2 $2 (12. Nc3 $17 {was worth a try.}) 12... O-O (12... Bxd3 $19 13. cxd3 O-O-O) 13. Re1 (13. Ne1 $17 {was necessary.}) 13... Ng6 14. Kg1 (14. g3 $17) 14... Rfe8 15. Rxe8+ Rxe8 16. Na3 $2 (16. Nc3 {was called for.}) 16... b5 (16... Bxd3 17. cxd3 Re2) 17. c4 $2 (17. Re1 Bc5+ 18. Kh1 Rxe1+ 19. Nxe1) 17... Bxd3 $19 18. cxb5 cxb5 19. Nb1 Bc5+ 20. Kh1 Re1# {0-1 (20) Tyran,D-Dadello,A Polanica Zdroj 2005}) 7... Bd6) 7. O-O $2 {Mistake. Nc3 was best.} (7. Nc3) 7... Bg4 $2 {Mistake. Nxe4 was best.} (7... Qxe4 $2 8. Re1 Qe7 9. Rxe7+ $18) (7... Be7 {keeps the balance.}) (7... Nxe4 8. Nc3 Ng5 9. Re1+ Be7 10. Ne5 O-O 11. d3 Ne6 12. a4) 8. Qe1 $16 {White is better.} Nxe4 $6 {Inaccuracy. O-O-O was best.} (8... O-O-O 9. Nc3) 9. Qe3 $4 {Blunder. Nc3 was best.} (9. Nc3 f5 10. h3 h5 11. Nf4 Kd7 12. d3 Ng5 13. h4 Bd6 14. Be3 Nf3+) 9... Qxe3 $15 10. dxe3 {And now f3 would win.} Be2 (10... Bf5 $17) 11. Re1 Bxd3 12. cxd3 Nc5 13. d4 Ne6 {[%mdl 32768] Weighted Error Value: White=1.09/Black=0.68. Loss on time!? PRECISÃO LICHESS: BRANCAS 68% PRETAS 71%} 0-1 [Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.14"] [White "Sergio, Murilo Soares Guima"] [Black "Flavio, Cesar De Carvalho S"] [Result "1-0"] [Annotator "Stockfish 16.1"] [PlyCount "0"] [EventDate "2024.??.??"] 1-0 [Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.15"] [White "Wellington, Correa Soares"] [Black "Luis, Felipe Garcia De Ol"] [Result "0-1"] [ECO "B13"] [WhiteElo "1298"] [BlackElo "1874"] [Annotator "Stockfish 16.1"] [PlyCount "52"] [EventDate "2024.??.??"] {[%evp 9,52,-19,50,47,65,14,17,-10,-1,-63,-13,-126,-40,-49,-43,-98,-86,-128,-100,-186,-119,-126,-123,-117,-129,-127,-114,-276,-124,-203,-211,-353,-278,-377,-318,-490,-163,-141,-145,-138,-147,-484,-462,-470,-465]} 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Nf3 Nc6 5. Bd3 (5. c3 Bg4 6. Be2 e6 7. O-O Bd6 8. Re1 Nge7 9. Nbd2 O-O 10. Nf1 Qc7 11. Ng3 Ng6 12. Be3 Rfe8 13. Qd2 Bf4 14. Rad1 Bxe3 15. Qxe3 Qb6 16. Rd2 Na5 17. h3 Bxf3 18. Qxf3 Rac8 19. Bd3 Nc4 20. Bxc4 dxc4 21. Nh5 Qa5 22. a3 b5 23. d5 exd5 24. Red1 Rcd8 25. Rxd5 Rxd5 26. Qxd5 h6 27. Qd4 Re5 28. Nxg7 Qb6 29. f4 Qxd4+ 30. Rxd4 Re1+ 31. Kf2 Rb1 32. Nf5 Rxb2+ 33. Kf3 Rb3 34. Rd8+ Kh7 {Vachier Lagrave,M (2732)-Yoo,C (2599) Chess.com INT 2024 1-0}) (5. Ne5 e6 6. c3 Nxe5 7. dxe5 Ne7 8. Nd2 Nc6 9. Nf3 Qc7 10. Bf4 Be7 11. Bg3 Bd7 12. Bd3 g5 13. Qe2 h5 14. h4 g4 15. Nd2 a6 16. a4 Bf8 17. O-O Bg7 18. Rfe1 Qb6 19. b4 a5 {Carlsen,M (2714)-Dreev,A (2607) Moscow 2007 ½-½ (69)}) 5... Qc7 (5... Bf5 $2 {[%mdl 8192] 5...?g4 -0.28} 6. Bxf5 e6 7. Bd3 Nf6 8. O-O Be7 9. Nc3 O-O 10. Re1 h6 11. Bf4 a6 12. Qd2 b5 13. Bxh6 gxh6 14. Qxh6 {White threatens Re3 and mate.} b4 15. Nd1 (15. Re3 Na5 16. Re5 Ne4 17. Rh5 bxc3 18. Qh8#) 15... Re8 16. Ng5 Bf8 17. Bh7+ Kh8 18. Nxf7# {1-0 (18) Sheikh Abdullah Munshee,A (1274)-Tsediakov,L FIDE Online Arena INT 2024}) (5... Bg4) 6. O-O {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack.} Bg4 $146 (6... Nf6 7. Bg5 Bg4 8. c3 e6 9. Nbd2 Bd6 {[%CAl Bd6h2] aiming for ...Bxh2+!} 10. Qc2 h6 11. Bxf6 gxf6 12. h3 Bh5 13. c4 dxc4 14. Qxc4 O-O-O {Strongly threatening ...Bf4.} 15. Qb5 Qa5 (15... f5 $1 $15 16. Rfc1 Bf4) 16. Qxa5 Nxa5 17. g4 Rhg8 {Hoping for ...f5.} 18. Kh1 Bg6 19. Bxg6 fxg6 20. Rfe1 Rge8 21. Ne4 {Skalka,M (1741)-Stalmach,R (1996) Stare Mesto 2018 0-1 (68)}) 7. Be3 (7. h3 $14 Bxf3 8. Qxf3) 7... e6 {[#]} 8. Nbd2 $146 {The position is equal.} (8. Be2 Bd6 9. h3 Bxf3 $5 (9... Bh5 10. Nfd2 Bxe2 11. Qxe2 Nb4 12. Na3 a6 (12... Nf6 13. c3 Nc6 14. Nb5 {1-0 (32) Faupel,D-Garamow,A Kassel 2000} Qd7 15. Nxd6+ Qxd6 16. Bg5 Nd7 17. Qf3 (17. Qg4 $16) 17... O-O 18. Rfe1 Rfe8 19. Re2 Rac8 20. Rae1 Nb6 21. Qg4 Ne7 (21... Nd7 $14) 22. Bf4 (22. h4 $16) 22... Qd7 23. Nf3 Ng6 24. Ne5 Nxe5 25. Bxe5 f6 $2 (25... f5 $1 $14 26. Qg3 Nc4) 26. Bxf6 $1 $18 Rc6 27. Be5 Nc4 28. Bg3 b5 29. f4 Nd6 30. Rxe6 Rxe6 31. Qxe6+ Qxe6 32. Rxe6 {1-0 (32) Faupel,D-Garamow,A Kassel 2000})) 10. Bxf3 Nge7) 8... Bd6 {[%CAl Bd6h2] White must now prevent ...Bxh2+!} 9. Qc1 (9. h3 Bh5 10. Qe2) 9... Nf6 10. c4 $2 {Mistake. h3 was best.} (10. h3 Bh5 11. c4 (11. c3 O-O 12. Qc2 Rac8 13. a3 Ne7 14. Rfe1 h6 15. Ne5 Bxe5)) 10... dxc4 $6 {Inaccuracy. Nb4 was best.} (10... Nb4 11. Bc2 (11. Be2 Bxh2+ 12. Kh1 Bf4 13. Bxf4 Qxf4 14. cxd5 Nbxd5 15. Qc5 a6 16. g3) 11... Bxf3 12. Ba4+ Kf8 13. Nxf3 dxc4) 11. Qxc4 $15 {[%CAl Bf3e5]} O-O 12. Bg5 (12. Rac1 $15) 12... Nd5 $17 13. Rfe1 Rac8 {[%CAl Ba8c8,Bc8c7,Bc7c2][%mdl 32] ...Ncb4 is the strong threat.} 14. Bb1 {[#]} (14. Be4 $17) 14... Ncb4 (14... h6 $1 $19 {[%CAl Rh6g5]} 15. Bh4 Qb6) 15. Qxc7 Rxc7 (15... Nxc7 16. Nc4 Ne8 17. Nxd6 Nxd6 18. Be7 $18) 16. a3 Nc2 17. Bxc2 Rxc2 18. h3 $2 {Mistake. Rec1 was best. [#]} (18. Rec1 Rfc8 (18... Rxc1+) 19. Ne4) 18... Bh5 $2 {Mistake. Bxf3 was best.} (18... Bxf3 19. Nxf3 Rxb2 20. Rec1 f6 21. Bd2 Kf7 22. Kf1 b6 23. Rc4 Rd8 24. Bc1) 19. g4 $6 {Inaccuracy. Rec1 was best.} (19. Rec1 Rfc8 (19... Rxc1+ 20. Rxc1 f6 21. Be3 Bb8 22. Ne4 Rd8 23. Nc3 Ne7 24. g4 Be8) 20. Rxc2 Rxc2 21. Ne1) 19... Bg6 $19 {[%CAl Bh5g6,Bg6c2,Bc2e4][%mdl 32]} 20. Nb3 $6 {Inaccuracy. Rec1 was best.} (20. Rec1 Rfc8 21. Rxc2 Rxc2 22. Ne1 Rc6 23. Nb3 h6 24. Bd2 Bf4 25. Rc1 Rb6) 20... b6 21. Rec1 $6 {Inaccuracy. Rab1 was best.} (21. Rab1 f6 22. Be3 Kf7 23. Na1 Rc4 24. Rbd1 Rfc8 25. Nd2 R4c7 26. Nb1 h5) 21... h6 22. Bd2 $6 {Inaccuracy. Be3 was best.} (22. Be3 Rxb2 23. Nbd2 b5 24. Rc6 Rd8 25. h4 Bd3 26. Rac1 Kh7 27. g5 Bxa3) 22... Nf4 $4 {Blunder. Rxb2 was best.} (22... Rxb2 23. Rc6 Bb8 (23... Rxb3 24. Nh4 Bf4 25. Nxg6 fxg6 26. Bc1 Rxh3 27. Bxf4 Nxf4 28. Rc7)) 23. Bxf4 Bxf4 24. Rxc2 Bxc2 25. Rc1 $4 {[%mdl 8192] Blunder. Nc1 was best.} (25. Nc1 Be4 26. Ne1 Bg5 27. Ne2 Rc8 28. Rd1 Bb7 29. Nc3 Rd8 30. Kf1 f5) 25... Bxc1 26. Nxc1 Be4 {Weighted Error Value: White=0.81/Black=0.63 PRECISÃO LICHESS: BRANCAS 81% PRETAS 86%} 0-1 [Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.16"] [White "Kaue Dos Santos Leal"] [Black "Jose Lourenco Kallas"] [Result "1-0"] [ECO "B06"] [WhiteElo "1856"] [BlackElo "1298"] [Annotator "Stockfish 16.1"] [PlyCount "27"] [EventDate "2024.??.??"] {[%evp 9,27,99,142,147,158,127,215,208,253,139,256,178,398,395,454,424,562,557,29994,29995]} 1. e4 g6 2. d4 Bg7 3. Nf3 e6 4. Be3 (4. Nc3 Ne7 5. Bd3 O-O 6. O-O d5 7. Be3 b6 8. h3 Bb7 9. Qd2 Nd7 10. Rad1 Nf6 11. e5 Ne4 12. Qe1 Qd7 13. Bc1 Nxc3 14. Qxc3 Qa4 15. Qxc7 Qc6 16. Qxc6 Nxc6 17. Bd2 a5 18. Ra1 {½-½ (18) Dubov,D (2710)-Afanasiev,N (2533) Sochi 2023}) 4... Ne7 5. Qd2 (5. Bd3 d6 6. Nc3 Nd7 7. Ne2 h6 8. c3 b6 9. O-O Bb7 10. h3 a6 11. Re1 c5 12. b4 cxb4 13. cxb4 O-O 14. Qb3 Kh7 15. Rad1 Nf6 16. Ng3 Rc8 17. Qb1 b5 18. Bd2 Nd7 19. Qb3 Nb6 {Matthiesen,M (2370)-Fries Nielsen,J (2415) Aarhus 2016 1-0 (51)}) 5... b6 (5... d5 6. Nc3 dxe4 7. Nxe4 Nf5 {Prevents Bh6.} 8. O-O-O Nxe3 9. Qxe3 c6 (9... Nd7 $16) 10. Qa3 Bf8 {Prevents Nd6+.} 11. Qc3 Bg7 (11... Nd7) 12. Qc5 Na6 $2 (12... Nd7 {is tougher.} 13. Nd6+ Kf8) 13. Nd6+ $18 Kf8 14. Bxa6 b6 15. Qa3 Bxa6 16. Ne4+ Kg8 17. Qxa6 h6 18. Ne5 Qd5 19. Rhe1 Kh7 20. Nxf7 {Liu,C (2280)-Golubenko,V (2209) chess.com INT 2024 1-0}) 6. Nc3 {B06: Modern Defence.} Bb7 7. Bd3 {[#]} c6 $2 $146 {Mistake. d6 was best.} (7... Nbc6 8. a3 {Prevents Nb4.} a6 9. g4 (9. h4) 9... b5 (9... d5) 10. h4 $16 Na5 (10... h6 $16 {was called for.}) 11. Rh3 (11. h5 $18) 11... Nc4 (11... h6 $16) 12. Bxc4 $18 bxc4 13. Rg3 (13. h5 $18) 13... d6 14. O-O-O Qd7 15. h5 O-O-O $2 (15... h6 $16) 16. h6 $18 Bf8 17. Ng5 Ng8 18. Rh1 (18. Nf3 $18) 18... f6 (18... Bxh6 $14 19. Rgh3 f6) 19. Nf3 $18 Ne7 (19... d5 {was necessary.}) 20. Qe2 (20. d5 $18) 20... f5 (20... d5 $16) 21. Ng5 $18 Ng8 22. gxf5 {Stepanov,D-Petrov,A (1908) Cheliabinsk 2011 1-0 (33)}) (7... d6 8. O-O-O {[%CAl Bd4d5]} (8. h4 h6 9. O-O-O Nd7 10. Rhe1 a6 11. d5 b5 12. a3) 8... Nd7 9. h4 h5 (9... h6 $16) 10. Ng5 $18 c5 11. Bc4 d5 12. Be2 $2 (12. dxc5 $1 $16 {[%CAl Re4d5]} dxc4 13. Nb5) 12... c4 $2 {[%mdl 8192]} (12... cxd4 $1 $15 {keeps the upper hand.} 13. Bxd4 e5) 13. Nb5 $1 $18 {[%CAl Rb5d6] Black must now prevent Nd6+.} O-O 14. e5 Nf5 $2 (14... Ba6 $16 {keeps fighting.}) 15. g4 $18 hxg4 16. Bxg4 a6 17. Nc3 Nxe3 18. Qxe3 Bh6 19. f4 Bxg5 20. hxg5 {Intending Qh3 and mate.} Kg7 (20... Re8 $18 21. Rh3 Qc8) 21. Rh7+ Kxh7 22. Qh3+ $1 {Cavalcante,R (1919)-Alarcon,R (2114) Brazil 2010 1-0}) (7... h6 8. O-O-O d5 (8... d6 9. h4 a6 10. h5 g5 11. Nxg5 $1 $16 {[%mdl 512] Threatens to win with Nf3.} (11. Nh2 Nbc6 $14 (11... c5 12. dxc5 dxc5 13. f4 gxf4 14. Bxf4 {0-1 (34) Wartiovaara,O (2259)-Lopez Mulet,I (2387) Chess.com INT 2022} Nbc6 15. Nf3 (15. Ng4 $18) 15... b5 16. g4 (16. Qf2 $18) 16... Qa5 {And now ...b4 would win.} 17. Kb1 c4 (17... O-O-O $1 $14) 18. Be2 $1 $16 {Strongly threatening Qd7+.} Rd8 {Inhibits Qd7+.} 19. Qe3 Rxd1+ $2 (19... b4 $16) 20. Rxd1 $18 b4 {[#]} 21. Nd5 $2 (21. Nd2 $1 $18 {[%CAl Rd2c4]} e5 (21... Bd4 22. Qf3) 22. Nxc4 exf4 23. Qxf4) 21... exd5 $17 22. exd5 $2 (22. Rxd5 $17 {was forced.} Qa4 23. Bxc4) 22... b3 $1 $19 23. cxb3 Nb4 24. a3 Nbxd5 25. Rxd5 Qxd5 26. bxc4 Qe4+ 27. Qxe4 Bxe4+ 28. Ka2 O-O 29. c5 Nd5 30. Bd6 Rc8 31. Bxa6 Ra8 32. Be2 Nb4+ 33. Kb3 Nc6 34. Bb5 (34. Nd2 Nd4+ 35. Kb4) 34... Bxf3 {0-1 (34) Wartiovaara,O (2259)-Lopez Mulet,I (2387) Chess.com INT 2022})) 11... hxg5 12. Bxg5)) 8. h4 {[%CAl Bh2h4,Bh4h5,Bh5g6][%mdl 32] White is clearly better.} d5 $6 {Inaccuracy. h5 was best.} (8... h5 9. O-O-O d5 10. Bg5 Ba6 11. Rhe1 Bxd3 12. Qxd3 O-O 13. Kb1 f6 14. Bf4) 9. e5 $6 {Inaccuracy. h5 was best.} (9. h5 a6 10. O-O-O Nd7 11. Bg5 Qc7 12. Bf4 Qd8 13. h6 Bf8 14. Ng5 Rc8) 9... Nd7 $6 {Inaccuracy. h6 was best.} (9... h5 $16 {was worth a try.}) (9... h6 10. h5 g5 11. Nxg5 hxg5 12. Bxg5 Ba6 13. h6 Bxd3 14. Qxd3 Bf8 15. f4) 10. Bh6 $6 {Inaccuracy. h5 was best.} (10. h5 a6 11. Ne2 c5 12. c3 gxh5 13. Nf4 h6 14. Nxh5 Bf8 15. Rh4 Nc6) 10... O-O $4 {Blunder. Bxh6 was best.} (10... Bxh6 11. Qxh6 Nf5 12. Bxf5 gxf5) 11. h5 $18 Nf5 12. Bxf5 $6 {Inaccuracy. Bxg7 was best.} (12. Bxg7 Kxg7 13. hxg6 hxg6 14. Bxf5 Rh8 15. Rxh8 Qxh8 16. Bh3 c5 17. Qf4 cxd4) 12... exf5 $2 {Mistake. gxf5 was best.} (12... gxf5 13. Rh3 f6 14. Rg3 Rf7 15. exf6 Nxf6 16. Ne5 Re7 17. O-O-O Qf8 18. f3) 13. hxg6 Bxh6 $4 {Checkmate is now unavoidable. fxg6 was best.} (13... fxg6 14. Bxg7 Rf7 15. Bh6 f4 16. O-O-O Nf8 17. Bxf8 Rxf8 18. Rh4 Bc8 19. Rg1) 14. Qxh6 {Weighted Error Value: White=0.33/Black=1.52 PRECISÃO LICHESS: BRANCAS 85% PRETAS 72%} 1-0 [Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.17"] [White "Michel Mattos da Silva"] [Black "Sergio, Goncalves"] [Result "0-1"] [ECO "A11"] [WhiteElo "1268"] [BlackElo "1844"] [Annotator "Stockfish 16.1"] [PlyCount "90"] [EventDate "2024.??.??"] {[%evp 10,90,137,138,191,188,186,142,164,156,182,180,187,93,144,117,146,99,150,136,161,101,151,144,161,139,182,112,114,96,109,105,101,55,98,22,48,22,98,96,121,121,103,69,106,55,57,54,54,50,135,82,109,40,164,69,108,86,78,57,57,51,54,0,0,0,0,-238,-8,-13,-10,-379,-370,-602,-602,-602,-598,-600,-592,-29976,-29976,-1100,-1122]} 1. c4 c6 2. Nc3 Nf6 3. Nf3 e6 $6 {Inaccuracy. d5 was best.} (3... d5 4. d4 e6 5. Bg5 Be7 6. e3 O-O 7. Rc1 h6 8. Bf4) 4. e4 d5 5. e5 Nfd7 6. d4 dxc4 {A18: English Opening: Flohr-Mikenas System (1 c4 Nf6 2 Nc3 e6 3 e4).} (6... Be7 $16 {keeps fighting.}) 7. Bxc4 $18 Nb6 8. Be2 $146 (8. Bb3 c5 9. Bg5 Qd7 (9... Be7) 10. dxc5 $18 Bxc5 11. Qxd7+ $2 (11. Qe2 $18 {Black must now prevent Rd1.} O-O 12. O-O) 11... N8xd7 (11... Bxd7 12. O-O Bc6) 12. O-O {Hoping for Nb5.} O-O 13. Ne4 h6 14. Bh4 Re8 15. Rac1 Be7 (15... Bf8 $16) 16. Bxe7 $18 Rxe7 17. Nd6 {Rc7 is the strong threat.} Nf8 18. Rfd1 (18. Nd4 $18) 18... a5 (18... Bd7 $16) 19. Rd2 f6 $2 {1-0 (19) Hetul,S (1903)-Boldoo,E Kemer 2009} (19... Bd7 $16 {might work better.} 20. Bc2 Bc6)) 8... Be7 $146 {White is clearly better.} (8... c5 9. Be3 cxd4 10. Bxd4 Bb4 11. a3 Be7 12. O-O Nc6 13. Be3 Nd7 14. Bf4 a6 15. Qc2 Qc7 16. Qe4 b6 17. Rfe1 Bb7 18. b4 Nxb4 19. Qc4 Qxc4 20. Bxc4 Nc2 {0-1 (20) Wrobel,A (1600)-Mrozowski,A (1800) Nowy Sacz 2000}) 9. O-O N8d7 10. Re1 Nd5 11. Nxd5 $6 {Inaccuracy. Bd3 was best.} (11. Bd3 O-O) 11... cxd5 $6 {Inaccuracy. exd5 was best.} (11... exd5 12. Bd3 Nb6) 12. a3 a6 13. b3 b5 (13... h6) 14. Bd2 Bb7 15. a4 $6 {Inaccuracy. h4 was best.} (15. h4 h6 16. h5 Nb8 17. Be3 Nc6 18. Nh2 b4 19. a4 Na5 20. Qd3 Rc8) 15... b4 $6 {Inaccuracy. bxa4 was best.} (15... bxa4) 16. Rc1 Rc8 17. Rc2 O-O 18. Qb1 $6 {Inaccuracy. Bd3 was best.} (18. Bd3 h6 19. Rxc8 Qxc8 20. Qe2 Qc6 21. h4 Qb6 22. g4 Rc8 23. g5 hxg5) 18... Qb6 $16 19. Be3 Rxc2 20. Qxc2 Rc8 21. Qd2 $6 {Inaccuracy. Qd1 was best.} (21. Qd1) 21... Rc3 22. Rb1 (22. Qd1 $16) 22... Qc7 23. Bd3 Nf8 $6 {Inaccuracy. Nb6 was best.} (23... Nb6 24. Rc1) 24. Qe2 a5 $6 {Inaccuracy. Rc6 was best.} (24... Rc6 25. Bd2 Qd8 26. g3 a5 27. Bb5 Rc2 28. Kg2 Qa8 29. h4 h6 30. g4) 25. Bd2 Rc6 26. h4 $6 {Inaccuracy. Bb5 was best.} (26. Bb5 Rc2 27. Ne1 Ra2 28. Qd3 Ng6 29. Rc1 Qd8 30. g3 f6 31. exf6 Bxf6) 26... Qb6 27. Rc1 (27. Bb5 $16) 27... Rxc1+ $14 28. Bxc1 Qc7 29. Bd2 Ng6 (29... h6 $14) 30. g3 (30. h5) 30... Nf8 31. Bf4 $6 {Inaccuracy. Nh2 was best.} (31. Nh2 Bd8 32. Ng4 Qb6 33. Be3 Qc7 34. h5 Qc3 35. h6 g6 36. Qd2 Qxd2) 31... g6 $6 {Inaccuracy. Qc3 was best.} (31... Qc3 32. Qd1 h6 33. Kg2 Bd8 34. Bb5 Ng6 35. Bd2 Qc8 36. Bd3 Ba6 37. Bb1) 32. Nh2 (32. Bd2 $18) 32... h5 33. Nf3 Qc3 34. Bc2 Nd7 35. Kg2 {[%CAl Be2b5]} Nb8 36. Qd2 $6 {Inaccuracy. Qb5 was best.} (36. Qb5 Qc8 (36... Qc6 37. Bg5 Bxg5 38. Nxg5 Qxb5 39. axb5 Bc8 40. Kf1 Nd7 41. Ke2 Nb6) 37. Bg5 Bxg5 38. Nxg5) 36... Qxd2 37. Bxd2 Ba6 38. Bg5 $4 {Blunder. Ng1 was best. [#]} (38. Nh2) (38. Ng1 Nc6 39. Be3 Bd8 40. f4 Bb6 41. Nf3 Ne7 42. Kf2 Nf5 43. Bb1 Ba7) 38... Nc6 $2 {Mistake. Bxg5 was best.} (38... Bxg5 39. hxg5 Nc6 40. Ne1 Nxd4 41. Bd1 Be2 42. Nc2 Nxc2 43. Bxe2 Nd4 44. Bd1) 39. Bxe7 Nxe7 {[%mdl 4096] Endgame KBN-KBN} 40. Kh3 $4 {[%mdl 8192] Blunder. Ne1 was best.} (40. Ne1) 40... Nc6 $19 41. g4 $4 {Blunder. Kg2 was best.} (41. Bd1 Bf1+ 42. Kh2) (41. Kg2 Be2) 41... hxg4+ 42. Kxg4 Be2 43. Kf4 Bxf3 44. Kxf3 Nxd4+ 45. Kf4 Nxc2 {Weighted Error Value: White=0.82/Black=0.37 PRECISÃO LICHESS: BRANCAS 84% PRETAS 91%} 0-1 [Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.18"] [White "Guilherme, De Moura Silva"] [Black "Sophia Magalhães de Lima"] [Result "1-0"] [ECO "C50"] [WhiteElo "1831"] [BlackElo "1479"] [Annotator "Stockfish 16.1"] [PlyCount "35"] [EventDate "2024.??.??"] {[%evp 9,35,-32,177,132,416,417,416,416,400,406,401,397,469,463,502,497,514,522,537,532,528,463,618,624,1098,1001,29969,646]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d4 Bd6 $4 {Blunder. Bxd4 was best.} (5... d6 $2 {[%mdl 8192] 5...?xd4 -0.21} 6. dxc5 dxc5 7. Qxd8+ Kxd8 8. Bxf7 Ke7 9. Bd5 Bg4 10. Bxc6 {1-0 (10) Manu David,S (2360)-Alekseenko,K (2696) Lichess.org INT 2021}) (5... Bxd4 6. Re1 (6. Nxd4 Nxd4 7. f4 (7. Be3 Nc6 8. f4 Qe7 9. Bd5 exf4 10. Bxf4)) 6... O-O (6... Bc5 7. Nc3 h6) 7. c3 (7. Nxd4 Nxd4 8. Be3) 7... Bb6 $17 8. Be3 d6 9. h3 Be6 10. Na3 Re8 11. Qd2 $2 (11. Bxe6 $17 {was necessary.} Rxe6 12. Bg5) 11... d5 (11... Nxe4 $19 {has better winning chances.} 12. Qc2 Bxe3 13. Rxe3 Nf6 14. Bxe6 Rxe6) 12. exd5 $17 Bxd5 13. Bxd5 Nxd5 14. Bxb6 Nxb6 15. Qc2 Qf6 16. Rad1 Rad8 17. Nd2 Qe6 18. b3 (18. Nb3 $17) 18... f5 19. f3 h5 20. Nf1 {Weglarz,K-Kollbek,J (1193) Krakow 2022 0-1 (55)}) 6. dxe5 {C50: Hungarian Defence and Giuoco Pianissimo.} Nxe5 $4 $146 {Blunder. Bxe5 was best.} (6... Ng4 $2 {[%mdl 8192] 6...?xe5 1.35} 7. exd6 cxd6 8. Ng5 Nge5 9. Bb3 O-O 10. f4 Ng6 11. f5 Nge5 12. f6 {Intending Qh5 and mate.} gxf6 13. Nh3 Re8 14. g4 b6 15. g5 fxg5 (15... Ba6 16. Rxf6 Kh8) 16. Nxg5 $18 Ba6 17. Rf2 {White wants to mate with Qh5.} Qe7 18. Qh5 Bc4 19. Nxh7 (19. Qxh7+ Kf8 20. Qh8#) 19... Rf8 20. Nxf8 Rxf8 21. Rg2+ {Salai,N-Raguz,S Valpovo 2011 0-1 (32)} (21. Bxc4 Qe6 22. Bxe6 Ne7 23. Rg2+ N7g6 24. Rxg6+ Nxg6 25. Qxg6+ Kh8 26. Qf6+ Kh7 27. Bf5+ Kg8 28. Bh6 Re8 29. Qg7#)) (6... Bxe5 7. Qd5 $2 {[%mdl 8192]} (7. Bb5 $16 {keeps the pressure on. Threatens to win with Bxc6.} Qe7 8. Nxe5 Qxe5 9. Nc3) (7. Nxe5 Nxe5 8. Bb3 {aiming for f4.} (8. Be2 Ng6 9. Nc3 d6 10. Qd4 Bd7 11. a4) 8... d6 9. f4 Bg4 (9... Nc6 $16) 10. Qe1 $18 Nc6 {[#]} 11. e5 $2 (11. f5 $1 $18) 11... dxe5 12. Bxf7+ $2 {[%mdl 8192]} (12. fxe5 {and White has nothing to worry.} Qd4+ 13. Be3 Qxe5 14. Bf4 Qxe1 15. Rxe1+ Be6 16. Bxc7) 12... Kxf7 $19 13. fxe5 Qd4+ 14. Kh1 Qxe5 15. Qh4 Qh5 16. Qg3 Rhe8 17. Qb3+ Kf8 18. Qxb7 Ne5 19. Qxc7 Rac8 20. Qd6+ Kg8 21. Nc3 {Homfeldt,C (1515)-Milak,A (1629) Bad Griesbach 2016 0-1 (49)}) 7... Nxd5 $19 8. Bxd5 (8. exd5 Nd4 9. Nxe5 Nxc2 10. Bd3 Nxa1 11. Nc3) 8... d6 9. Ng5 O-O 10. Nc3 Bxc3 11. bxc3 Be6 12. Bxe6 fxe6 13. Nxe6 Qe7 14. Nxf8 Rxf8 15. f3 Qh4 16. Be3 a6 17. a3 Rd8 18. c4 b5 19. cxb5 axb5 20. Rab1 d5 21. Rxb5 {Pacheco Rodriguez,A (1543)-Monar Narvaez,V (924) Chess.com INT 2020 0-1 (54)}) 7. Nxe5 $18 Bxe5 8. f4 $146 {White is winning.} (8. Nc3 d6 9. Re1 Bd7 10. Bg5 Qe7 11. Nd5 Qe6 12. Nxc7+ Ke7 13. Nxe6 Bc6 14. Bxf6+ Kxf6 15. Nd4 Ba4 16. Qf3+ Kg5 17. Qf5+ Kh4 18. g3+ {1-0 (18) Ahmadli,M-Kritikou,P Rhodes 2022}) 8... Bd6 9. e5 Bc5+ 10. Kh1 Ne4 $6 {Inaccuracy. Ng8 was best.} (10... Ng8 11. Nc3 d5 12. Qxd5 Qxd5 13. Nxd5 Rb8 14. Nxc7+ Kd8 15. Nb5 a6 16. Nc3) 11. Qd5 $1 {[%csl Gc4,Be4,Bf7][%CAl Rd5f7] [#]} O-O 12. Qxe4 c6 13. Bd3 {[%csl Gd3][%CAl Re4h7]} g6 14. f5 d5 15. exd6 Re8 $6 {Inaccuracy. Bxd6 was best.} (15... Bxd6 16. Qg4 Re8 17. Bg5 Qa5 18. Nd2 Qd5 19. Nc4 Bxf5 20. Bxf5 gxf5 21. Rxf5) 16. Qc4 {[%csl Bc5,Bg6] fxg6 would kill now.} Bxd6 17. fxg6 hxg6 18. Bxg6 {Weighted Error Value: White=0.16 (very precise) /Black=1.46 PRECISÃO LICHESS: BRANCAS 96% PRETAS 78%} (18. Qxf7+ Kh8 19. Qxg6 Qe7 20. Bg5 Bf5 21. Bf6+ Qxf6 22. Qxf6+ Kg8 23. Qxf5) 1-0 [Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.19"] [White "Johann, Rosseto Estebanez"] [Black "Carlos Frederico B. de Olivei"] [Result "0-1"] [ECO "D02"] [BlackElo "1771"] [Annotator "Stockfish 16.1"] [PlyCount "58"] [EventDate "2024.??.??"] {[%evp 9,57,7,15,8,18,3,0,2,18,0,23,0,0,0,6,-7,-3,-4,0,-192,-194,-416,-414,-414,-411,-413,-408,-435,-383,-428,-423,-432,-432,-458,-455,-455,-443,-474,-467,-548,-492,-491,-495,-650,-655,-29995,-938,-930,-893,-29999]} 1. d4 d5 2. Nf3 Nf6 3. Bf4 e6 4. e3 Bd6 5. Bg3 O-O 6. c4 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} (6. Nbd2 b6 7. Bd3 Ba6 8. O-O Bxd3 9. cxd3 Bxg3 10. hxg3 c5 11. Rc1 Qd6 12. e4 Qe7 13. dxc5 bxc5 14. Re1 Nbd7 15. Qa4 Rfc8 16. Qa3 a5 17. d4 Nxe4 18. Nxe4 dxe4 19. Rxe4 {With the idea Ne5.} Qf8 20. dxc5 Rxc5 21. Rxc5 Qxc5 22. Qxc5 Nxc5 23. Rc4 Nd3 24. b3 h6 25. Kf1 Nb4 26. a3 Nd5 27. Nd4 (27. Rc5 $16) 27... Kf8 28. Nc6 Ne7 29. Nd4 g6 30. Ke2 Rd8 31. Nc6 Nxc6 32. Rxc6 Rb8 33. Rc3 h5 34. b4 axb4 35. Rb3 Ke7 {Nihal,S (2667)-Vachier Lagrave,M (2838) Riga 2021 ½-½}) 6... c5 7. Nc3 cxd4 (7... dxc4 {keeps more tension.} 8. dxc5 (8. Bxc4 cxd4 9. Nxd4 Bxg3 10. hxg3 Bd7) 8... Bxc5 {[%CAl Bb7b5]} 9. Bxc4 a6 10. O-O b5 11. Bd3 Bb7 {Against Ne4} 12. Qe2 Nbd7 13. Rad1 Qb6 14. e4 Nh5 15. e5 {[%CAl Bd3h7] aiming for Bxh7+!} Nxg3 16. hxg3 {[%CAl Bd3h7] Bxh7+! is the strong threat.} Rfd8 17. Be4 Be7 {Prevents Ng5.} 18. Bxb7 Qxb7 19. Ne4 Nc5 20. Nd6 Bxd6 21. exd6 Qb6 22. b4 {Carlsen,M (2840)-Jakovenko,D (2704) Doha 2016 1-0 (53)}) 8. Nxd4 {The position is equal.} dxc4 (8... Nc6 9. cxd5 Nxd4 10. Qxd4 Bxg3 11. hxg3 Nxd5 12. Nxd5 (12. O-O-O $5 {[%CAl Re3e4]}) 12... exd5 13. Bd3 h6 14. O-O Be6 15. Rac1 Qa5 16. a3 Rfc8 17. Be2 Rxc1 18. Rxc1 Rc8 19. Rxc8+ Bxc8 20. Kf1 Be6 21. f3 b6 22. Kf2 Qc5 23. Qe5 {Kamsky,G (2613)-Vlassov,N (2299) chess.com INT 2024 ½-½ (51)}) 9. Bxc4 {[%CAl Bd4c6]} a6 10. Bxd6 $146 (10. Nc6 Nxc6 11. Bxd6 Re8 12. O-O b5 13. Be2 Bb7 14. Rc1 Qb6 {White must now prevent ...Red8.} 15. Bg3 Red8 16. Qc2 Rac8 17. Rfd1 Nb4 18. Qb1 Nbd5 19. Nxd5 Bxd5 20. Bd3 Qb7 21. f3 h6 (21... Bxa2 $5 22. Bxh7+ (22. Qxa2 Rxd3 23. Qb1 Rxd1+ 24. Rxd1 h6 $17) (22. Rxc8 Qxc8 23. Qc2 Qxc2 $15) 22... Nxh7 23. Rxd8+ (23. Qxa2 Qd7) 23... Rxd8 24. Qxa2 Rd3) 22. Rxc8 Rxc8 23. b3 Bc6 24. e4 b4 {Jumabayev,R (2654)-Ambartsumova,K (2371) Chess.com INT 2020 1-0 (63)}) 10... Qxd6 11. O-O {[#]} b5 $146 (11... Rd8 12. Qc2 b5 13. Be2 Bb7 14. Rfd1 Qe7 15. Bf3 Bxf3 16. Nxf3 Nbd7 17. Ne4 Nd5 {0-1 (30) Lanza,M (1264)-Smetana,P (1805) Dudince 2023} 18. Rd4 h6 19. Qc6 N7b6 {Threatens to win with ...Rac8.} 20. Nc3 $2 {[%mdl 8192]} (20. Qc2 {and White has nothing to worry.}) 20... Rdc8 $19 21. Nxd5 Nxd5 22. Qc1 Rxc1+ 23. Rxc1 Qb7 24. Rcd1 Rc8 25. e4 Nf6 26. Rd8+ Rxd8 27. Rxd8+ Kh7 28. Rd4 Nxe4 29. Ne5 Qc7 {( ? ...Qc1+)} 30. Rd1 {Against Qc1} Qxe5 {0-1 (30) Lanza,M (1264)-Smetana,P (1805) Dudince 2023}) 12. Bd3 {[%CAl Bd4b5] Strongly threatening Ndxb5!} Bb7 13. Rc1 {[%CAl Bd4b5]} Rd8 14. Re1 $4 {Blunder. Be2 was best. [#]} (14. Be2) 14... e5 $40 {[%mdl 128] Black is out for blood.} 15. Nce2 $4 {Blunder. Nb3 was best.} (15. Nb3 Qxd3 16. Qxd3 Rxd3 17. Nc5) 15... exd4 16. Nxd4 Nc6 17. Nxc6 Bxc6 (17... Qxd3 18. Nxd8 Qxd8 19. Qxd8+ Rxd8 20. b3) 18. Be2 Qxd1 19. Bxd1 Rac8 20. Bb3 Bd5 21. Ra1 Bxb3 22. axb3 Rc6 23. g3 Rd2 24. Ra2 Nd5 25. Raa1 Nb4 26. Kf1 $6 {Inaccuracy. Red1 was best.} (26. Red1 Rcd6 27. Rxd2 Rxd2 28. Rc1 g5 29. Rc8+ Kg7 30. f4 gxf4 31. gxf4 Re2) 26... Rcc2 27. f4 Rf2+ (27... Rg2 28. Re2 Rcxe2 29. Rc1 Ref2+ 30. Ke1 Nd3+ 31. Kd1 Rg1#) 28. Kg1 Rg2+ 29. Kf1 $2 {Checkmate is now unavoidable. Kh1 was best.} (29. Kh1 Rxh2+ 30. Kg1 Rcg2+ 31. Kf1 g6 32. f5 Rd2 33. Kg1 Nc2 34. f6 Rdg2+) 29... Rcf2# {Weighted Error Value: White=1.05/Black=0.41 PRECISÃO LICHESS: BRANCAS 83% PRETAS 98%} 0-1 [Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.20"] [White "Bruno Ramalho Calcada"] [Black "Moises, Hiroshi Ogawa Akiam"] [Result "0-1"] [ECO "B47"] [WhiteElo "175"] [Annotator "Stockfish 16.1"] [PlyCount "76"] [EventDate "2024.??.??"] {[%evp 12,76,22,19,21,17,30,15,34,12,25,-12,39,18,25,0,-2,-15,28,28,29,8,37,5,10,-21,-23,-23,16,-11,-6,-28,55,36,48,50,51,51,57,42,307,0,2,-11,-6,-4,-2,-10,0,-3,-3,-2,-3,-23,-12,-40,-19,-75,0,0,0,-324,8,-168,-163,-160,-149]} 1. e4 c5 2. Nf3 {[%CAl Bg1f3,Bf3d4,Bd4b5][%mdl 32]} Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Qc7 6. Ndb5 Qb8 7. g3 a6 {B47: Sicilian: Taimanov: 5 Nc3 Qc7 6 f4, 6 g3 and 6 Be2.} 8. Nd4 Nf6 {[%CAl Bf6e4]} (8... b5 9. Bg2 Bb7 10. O-O Nf6 11. Nxc6 dxc6 12. Qe2 e5 13. Nd1 Bc5 14. Ne3 O-O 15. Nf5 g6 16. Nh6+ (16. Qd2 $16) 16... Kg7 $1 $14 17. Kh1 {[%CAl Bf2f4]} Ng8 18. Nxg8 Kxg8 19. Bh6 Re8 20. Rad1 {½-½ (20) Dgebuadze,A (2558)-Michiels,B (2515) Lommel 2012}) 9. Bg2 (9. Bf4 {[%eval 25,0] 9.?g2} e5 10. Nxc6 bxc6 11. Bc1 Bb4 12. Bg2 d5 13. O-O d4 (13... Bg4 $5 {[%CAl Rg4d1]} 14. Qd3 d4) 14. Ne2 O-O 15. Bg5 Be7 16. b3 Qa7 17. Nc1 Bg4 (17... Nxe4 $1 $17 18. Bxe4 (18. Bxe7 Nc3) 18... Bxg5) 18. Qe1 Rab8 19. Nd3 h6 20. Bd2 Nd7 $1 21. f4 f6 22. f5 Nc5 (22... c5) 23. Nf2 $14 Bh5 {Andersson,B (2163)-Korpics,Z (2300) chess.com INT 2024 1-0 (52)}) 9... Bb4 {[%CAl Bf6e4] The position is equal.} 10. Nxc6 bxc6 11. Bd2 $146 (11. O-O O-O 12. Bg5 Be7 13. Rb1 h6 14. Be3 Qc7 15. f4 (15. Na4) 15... d5 $15 16. a3 (16. b3) 16... Rd8 $17 17. exd5 cxd5 18. Bd4 Rb8 19. Kh1 a5 {[%CAl Bf6e4]} 20. Qe2 {[%CAl Bf4f5]} Qc6 {Hoping for ...Ba6.} 21. Rfd1 {[%CAl Bc3d5]} Ba6 22. Qf3 Nd7 23. g4 Bc5 24. Bxc5 Qxc5 25. f5 d4 {Sala,H (1955)-Tapia Huerta,J (1694) Lima 2013 0-1 (44)}) (11. Bf4 e5 12. Bg5 Qb5 13. Bxf6 gxf6 14. Qf3 $14 (14. Qd3 Qxd3 15. cxd3 d6 16. O-O-O Be6 17. Kc2 {0-1 (40) Janouch,J (1727)-Bartos,V (1627) Czech Republic 2018} Ke7 18. b3 Bxc3 19. Kxc3 c5 20. Rb1 a5 21. a3 Rhc8 22. a4 Rab8 23. Rb2 (23. f4 $17) 23... Rb4 $1 $19 24. f4 Ra8 (24... Rcb8 $19 {[%CAl Rb4b3] is more deadly.} 25. Rhb1 exf4 26. gxf4 f5 27. exf5 Bxf5 28. Re1+ Kf6) 25. Rhb1 Rd4 {Janouch,J (1727)-Bartos,V (1627) Czech Republic 2018 0-1 (40)})) 11... e5 (11... d5) 12. O-O O-O 13. a3 Be7 14. b3 Bb7 15. Na4 Qc7 {Prevents Nb6.} 16. Bg5 Rfd8 17. Bxf6 Bxf6 18. Nc5 Bc8 19. c4 d5 20. cxd5 cxd5 21. Rc1 {[%CAl Bc5e6] Strongly threatening Ne6!} dxe4 $6 {Inaccuracy. d4 was best.} (21... d4 22. Nd3 Qb6 23. b4 a5 24. Qd2 h6 25. Rc5 axb4 26. axb4 Be6 27. Rb1) 22. Qe2 Qb6 (22... Bg5 23. Ne6 $1 Qxc1 24. Rxc1 Bxe6 25. Rc5) 23. Nxe4 Rb8 24. Nxf6+ Qxf6 25. Rfd1 Rxb3 $4 {[%mdl 8192] Blunder. Rxd1+ was best.} (25... Rxd1+ 26. Qxd1 Be6 (26... g6 27. b4 Bf5 28. Rc6 Rd8 29. Qc1 Rd6 30. h4 Bd7 31. Rxd6)) 26. Qc4 $4 {Blunder. Rxd8+ was best.} (26. Rxd8+ Qxd8 27. Qd1 Qxd1+ 28. Rxd1 g5 29. Rd8+ Kg7 30. Rxc8 Rxa3 31. Bb7 f5) 26... Rb8 27. Qc7 Be6 {[%CAl Bc8e6,Be6c4,Bc4e2][%mdl 32]} 28. Rxd8+ Rxd8 29. Re1 Rc8 30. Qa7 Bc4 31. Rc1 Qe6 32. Bb7 Rd8 33. a4 Qg4 {( ? ...Rd1+)} 34. Kg2 $6 {Inaccuracy. Bg2 was best.} (34. Bg2) 34... Be2 $6 {Inaccuracy. Qd4 was best.} (34... g6 $17) (34... Qd4 35. Qxd4) 35. Bd5 Qf5 {...e4 is the strong threat.} 36. Rc7 $4 {[%mdl 8192] Blunder. Qe7 was best. [#]} (36. Qe7 Rf8 37. h3 g6 38. Re1 Qc2 39. Qxe5 Bc4 40. Re4 Bxd5 41. Qxd5 Rc8) 36... Rf8 $4 {Blunder. e4 was best.} (36... Qb1 37. h4 e4 38. Rxf7 $15) (36... e4 37. Qd4 (37. Rxf7 Bf3+ 38. Kg1 Rxd5 39. Rxg7+ Kh8) 37... Qf3+ 38. Kg1 (38. Kh3 Kh8 39. Be6 Qd3 40. Qxd8+ Qxd8 41. Rc8 Qxc8 42. Bxc8) 38... Qd3 39. Bxf7+ Kh8 40. Qxd3 exd3) 37. Rxf7 $4 {Blunder. Qe3 was best.} (37. Qe3 Bd3 38. Re7 e4 39. Bxe4 Bxe4+ 40. Qxe4 Qxe4+ 41. Rxe4 Rc8 42. Rb4 g5) 37... Bf3+ $1 $19 38. Bxf3 Qxf7 {Weighted Error Value: White=0.49/Black=0.50 PRECISÃO LICHESS: BRANCAS 83% PRETAS 87%} 0-1 [Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.21"] [White "Adam Meyer"] [Black "Roberto, Fabelino De Souza"] [Result "1-0"] [ECO "A31"] [BlackElo "1741"] [Annotator "Stockfish 16.1"] [PlyCount "109"] [EventDate "2024.??.??"] {[%evp 18,109,82,85,84,85,101,79,117,17,20,18,13,4,14,15,20,15,25,0,0,0,0,-45,-42,-60,19,7,12,-11,0,0,19,15,74,0,320,320,301,296,279,258,239,66,66,60,100,30,52,17,20,20,21,23,16,0,0,0,0,0,5,0,0,0,258,12,10,17,16,0,0,0,7,11,48,49,469,69,72,80,730,592,729,725,722,712,706,608,688,650,557,511,3655,853]} 1. d4 c5 2. Nf3 $6 {Inaccuracy. d5 was best.} (2. d5 Nf6 3. c4 b5 4. cxb5 a6 5. e3 axb5 6. Bxb5 Bb7) 2... Nf6 $6 {Inaccuracy. cxd4 was best.} (2... cxd4 3. Qxd4 Nc6 4. Qa4 g6 5. e4 d6 6. Nc3 Bg7 7. Nd5) 3. c4 g6 4. g3 Bg7 5. Bg2 O-O 6. O-O Na6 7. Nc3 cxd4 8. Nxd4 Nc7 9. e4 d6 10. h3 a6 $146 {E65: King's Indian: Fianchetto: 6...c5 7 0-0 without d5 by White.} (10... Rb8 11. Be3 Bd7 12. Qe2 Qc8 13. Kh2 a5 (13... Ne6 $16 {was worth a try.}) 14. Rac1 $18 Qe8 15. Rc2 (15. Rfd1) 15... Na6 (15... b5 $16 {is a better defense.}) 16. Rd1 Nb4 17. Rcd2 Ba4 18. Nxa4 Qxa4 19. b3 Qe8 20. Nb5 Nd7 21. f4 b6 22. e5 Nc5 23. exd6 exd6 24. Nxd6 Qe7 25. Qf3 {Van Parreren,H (2140)-Andre,T Biel 1991 1-0}) 11. Be3 Rb8 12. Qd2 $146 (12. a4 Ne6 13. Qe2 Nxd4 14. Bxd4 Qa5 15. Rfd1 Qh5 16. Qxh5 Nxh5 17. Nd5 Re8 18. Nc7 Bxd4 19. Rxd4 {½-½ (28) Jaeger,A (1880)-Sebastian,M (1962) Berlin 2021}) 12... Bd7 {White is better.} 13. Bh6 $6 {Inaccuracy. f4 was best.} (13. b4 $16) (13. f4 b5) 13... b5 14. Bxg7 Kxg7 15. cxb5 Nxb5 16. Ndxb5 Bxb5 17. Rfc1 Qb6 18. Nxb5 Qxb5 19. b3 Rfc8 {Against Rc7} 20. Kh2 h5 {[%CAl Bh5h4]} 21. f4 Nd7 $6 {Inaccuracy. a5 was best.} (21... a5 22. Qe3 Qb4 23. a3 Qb5 24. Rxc8 Rxc8 25. Ra2 h4 26. gxh4 Rh8 27. e5) 22. Rxc8 Rxc8 23. Rc1 Rc5 24. Qd4+ f6 25. Rxc5 Nxc5 {[%mdl 4096] Endgame KQB-KQN} (25... Qxc5 {keeps the balance.} 26. Qxc5 dxc5) 26. e5 (26. b4 $1 $16 {[%CAl Rb4c5]}) 26... Qd3 $4 {[%mdl 8192] Blunder. fxe5 was best.} (26... dxe5 27. fxe5 f5) (26... fxe5 27. fxe5 Ne6 28. Qd5 Qxd5 29. Bxd5 Nd4 30. exd6 exd6 31. Be4 a5 32. h4) 27. exf6+ $18 exf6 28. Qxd3 Nxd3 {KB-KN} 29. Bf1 Nc1 {[%CAl Bd3c1,Bc1a2,Ba2b4,Bb4c2][%mdl 32]} 30. Bxa6 $6 {Inaccuracy. a3 was best.} (30. a3 d5 31. Bxa6 d4 32. Kg2 Nxb3 33. a4 Nc5 34. Bb5 d3 35. a5 d2) 30... Nxa2 $14 31. Kg2 Nb4 32. Bc8 (32. Be2 $16) 32... Kf7 33. Kf3 Ke7 34. Ke4 d5+ 35. Kd4 Kd6 36. Bb7 Nc2+ 37. Kd3 Nb4+ 38. Kc3 Kc5 39. Bc8 d4+ 40. Kd2 d3 $4 {[%mdl 8192] Blunder. g5 was best. [#]} (40... g5 41. Bb7 gxf4 42. gxf4 h4 43. Bf3 Kb6 44. Be4 Kb5 45. Bg2 Kb6) 41. Be6 $2 {Mistake. h4 was best.} (41. h4) 41... g5 42. fxg5 fxg5 43. h4 gxh4 44. gxh4 {[%CAl Bg3h4,Bh4h5][%mdl 32]} Kd4 45. Bf7 Nc2 46. Bxh5 {And now Bd1 would win.} Ne3 $4 {[%mdl 8192] Blunder. Na1 was best.} (46... Na1 47. b4 Nc2 48. b5 Na3 49. Be8 Ke5 50. h5 Kf6 51. Kd1 Nxb5 52. Bxb5) 47. Bd1 $4 {Blunder. Bf3 was best.} (47. Bf3) 47... Nf1+ $14 48. Ke1 Ne3 $4 {[%mdl 8192] Blunder. Ng3 was best. [#]} (48... Ng3 49. Bg4 Kc3 50. Kf2 Ne4+ 51. Ke3 Nf6 52. Bf3 Ng8 53. h5 Nh6 54. Bd1) 49. h5 $1 $18 {White is clearly winning.} Nf5 50. Kd2 Nh6 $2 {Mistake. Ng3 was best.} (50... Ng3 51. h6) 51. Bf3 Nf5 52. Bg4 Nh6 53. Be6 Kc5 54. Kxd3 Kb4 $6 {Inaccuracy. Kd6 was best.} (54... Kd6 55. Bc4 Ng4 (55... Ke5 56. b4 Ng4 57. b5 Kd6 58. Kd4 Ke7 59. Be2 Nh6 60. Ke5)) 55. Ke4 {Weighted Error Value: White=0.50/Black=0.61 PRECISÃO LICHESS: BRANCAS 91% PRETAS 38%} 1-0 [Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.22"] [White "Ricardo Rocha Martinelli"] [Black "Gabriel Silva Cosme"] [Result "1-0"] [ECO "E94"] [WhiteElo "1732"] [BlackElo "1577"] [Annotator "Stockfish 16.1"] [PlyCount "97"] [EventDate "2024.??.??"] {[%evp 20,97,-2,-42,77,72,285,280,263,276,298,237,340,298,369,339,345,307,334,328,324,318,314,254,266,248,245,113,123,-4,-3,-303,166,43,59,36,42,24,20,20,25,19,18,11,28,0,0,2,2,1,5,2,3,0,1,0,1,0,0,-4,0,0,0,0,0,0,3,0,0,0,0,0,0,0,5,0,490,480,519,511]} 1. c4 Nf6 2. Nc3 g6 3. d4 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 Nbd7 7. O-O e5 8. d5 $6 {Inaccuracy. Qc2 was best.} (8. Qc2 Re8 9. Be3 Ng4 10. Bg5 Bf6 11. Bxf6 Ngxf6 12. Rfe1 c6) 8... Nc5 9. Qc2 a5 10. Be3 $6 {Inaccuracy. Bg5 was best.} (10. Bg5 b6 11. Nd2 h6 12. Be3 Ng4 13. Bxg4 Bxg4 14. a3 Na6 15. Qb1 Bd7) 10... b6 11. a3 Nh5 $6 {Inaccuracy. Ng4 was best. [#] E94: King's Indian: Classical: 6 Be2 e5 7 0-0: Various Black 7th moves.} (11... Ng4) 12. b4 $1 $16 axb4 $2 {Mistake. Na6 was best.} (12... Nb7 13. c5 (13. Rae1 $16) 13... bxc5 $14 14. bxc5 Nxc5 15. Bxc5 dxc5 16. Na4 Nf4 17. Nxc5 Nxe2+ (17... Qd6 18. Rfc1 Rb8) 18. Qxe2 Qe7 19. Rac1 f5 (19... Bg4 $14) 20. Rfe1 $18 f4 21. Qc4 Re8 $2 (21... Kh8 22. h3 Re8) 22. d6+ $18 Qf7 23. Qxf7+ Kxf7 24. d7 {1-0 (24) Mylonakis,I (1426)-Larkin,L (1136) Athens 2020}) (12... Na6 13. bxa5 bxa5 14. Rab1 Nf4 15. Bd1 Bd7 16. Qd2 f5 17. exf5 Bxf5 18. Bc2) 13. axb4 $18 {[%mdl 64] Discovered Attack} Rxa1 {White has a decisive advantage.} 14. Rxa1 Nd7 $146 (14... Na6 15. b5 $2 (15. Qb1 $18) (15. Qb3 Nf4 16. Bxf4 exf4 17. c5 $1 $18 (17. Rd1 g5 18. h3 h5 19. Nh2 Qf6 20. Nb5 $14 (20. Na2 Qg6 {0-1 (44) Ly,N (1521)-Nguyen,M (1459) Hanoi 2017} 21. Qf3 $1 {Against g4} h4 22. Qd3 f5 (22... Re8 $15) 23. exf5 Bxf5 24. Qf3 (24. Qd2 $14) 24... Re8 (24... Ra8 $15) 25. Qh5 $2 (25. c5 $1 $14 {keeps the upper hand.}) 25... Qxh5 $17 26. Bxh5 Re4 27. Rc1 Bb2 28. Rb1 Bf6 29. Rc1 {Ly,N (1521)-Nguyen,M (1459) Hanoi 2017 0-1 (44)}))) 15... Nc5 $16 16. Bxc5 bxc5 17. h3 Nf4 18. Bf1 f5 19. Re1 (19. Ra8 $16) 19... fxe4 20. Nxe4 (20. Nh2 $1) 20... Nxh3+ $1 $15 21. gxh3 (21. Kh1 $15) 21... Rxf3 $17 22. Ng3 Qg5 (22... Bf5 $19 23. Nxf5 Rxf5) 23. Qe4 $2 (23. Bg2 $17 {only move.} Ra3 24. Qb2) 23... Rxg3+ $19 24. fxg3 Qxg3+ 25. Bg2 Bxh3 26. Re2 Bf5 27. Qf3 Qg5 28. Qe3 Qg4 29. Ra2 {Ebel,K-Mueller,D Geneve 1995 0-1 (34)}) 15. Ra7 f5 $6 {Inaccuracy. Ndf6 was best.} (15... Ndf6 16. c5 (16. h3 Nf4 17. c5 bxc5 18. bxc5 dxc5 19. Bf1 Ne8 20. Qb3 Nd6 21. Qb8) 16... Ng4) 16. Nb5 f4 $6 {Inaccuracy. fxe4 was best.} (16... fxe4 17. Ng5 Bh6 18. Qd2 Ndf6 19. Nxc7 Bxg5 20. Bxg5 Nf4 21. Nb5 e3 22. fxe3) 17. Bc1 Ndf6 18. Nxc7 (18. Rxc7 Bd7 19. Bb2 Bxb5 20. cxb5 Nxe4 21. Rxg7+ Kxg7 $18) 18... Nxe4 19. Ne6 (19. Qxe4 Bf5 20. Nd2 (20. Ne6 Qb8 $17) 20... Bxe4 $17) 19... Bxe6 20. dxe6 Qb8 21. Ra3 Nhf6 22. Bd3 Qb7 23. c5 $2 {Mistake. Qa2 was best.} (23. Qa2 Re8 24. Ra7 Qc8 25. Qc2 Qb8 26. Rxg7+ Kxg7 27. Bxe4 Nxe4 28. Qxe4 Qa8) 23... bxc5 $16 24. bxc5 $6 {Inaccuracy. Qa2 was best.} (24. e7 Re8 25. bxc5 Nxc5 26. Qa2+ d5) (24. Qa2 d5 (24... Re8 25. Ra7 Qxb4 26. Ra8 h6 27. Rxe8+ Nxe8 28. Bd2 Nxd2 29. Nxd2 Qb7) 25. bxc5) 24... Nxc5 25. Nxe5 $4 {[%mdl 8192] Blunder. Qa2 was best.} (25. Qa2 Qe7 26. Nxe5 Qxe6 27. Qxe6+ Nxe6 28. Bc4 d5 29. Ba2 Rc8 30. Nd3 Bf8) 25... Qb4 $4 {[%mdl 8192] Blunder. dxe5 was best.} (25... dxe5 26. Qa2 (26. Qxc5 $2 Rc8 $19) (26. Bf1 Rc8 27. Rc3 Bf8 28. g4 fxg3 29. hxg3 Kg7 30. Be3) 26... Re8) 26. Nf3 $6 {Inaccuracy. e7 was best.} (26. e7 Re8 27. Nc6) 26... Nxe6 27. Ra4 Qb7 28. Bxf4 Nxf4 (28... Qd5 $2 29. Bc4 Nxf4 30. Bxd5+ $18) 29. Rxf4 Nd5 {[%CAl Bf6d5,Bd5b4,Bb4c2][%mdl 32]} 30. Rxf8+ Kxf8 {[%CAl Bg8f8,Bf8e7,Be7f6,Bf6e5,Be5d5][%mdl 32]} 31. Be4 {[#] Hoping for Qd2.} Nb4 32. Bxb7 {Intending Qc8+ and mate.} Nxc2 {[%mdl 4096] Endgame KBN-KBN} 33. Kf1 Ke7 34. Be4 Nb4 35. Ke2 Kf6 36. Bb1 h6 37. h3 g5 38. Nd2 Ke5 39. f3 d5 40. g3 d4 41. Ne4 Bf8 42. Nf2 Kd5 43. Ng4 Kc4 44. Ne5+ Kc3 45. Be4 Bd6 46. Nf7 {[%csl Bd6,Bh6]} d3+ 47. Bxd3 Nxd3 $4 {[%mdl 8192] Blunder. Bxg3 was best.} (47... Bxg3 48. Be4 Na6 (48... h5 49. Nxg5 Kd4 50. Ne6+ Ke5 51. Nf8 Kd4 52. Ng6 Na2 53. Kd2)) 48. Nxd6 $18 Kd4 $6 {Inaccuracy. Nb4 was best.} (48... Nb4 49. Nf7 Kd4 50. Nxh6 Ke5 51. Ng4+ Kf5 52. Nf2 Nc2 53. Nd3 Nd4+ 54. Kf2) 49. Nf5+ {Weighted Error Value: White=0.37/Black=0.55 PRECISÃO LICHESS: BRANCAS 89% PRETAS 83%} 1-0 [Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.23"] [White "Joao Guilherme Alves Sabadin"] [Black "Murillo, Costa Rodrigues Jr"] [Result "0-1"] [ECO "A53"] [WhiteElo "1059"] [BlackElo "1722"] [Annotator "Stockfish 16.1"] [PlyCount "50"] [EventDate "2024.??.??"] {[%evp 9,50,22,28,29,33,28,63,-70,-68,-98,-100,-110,-105,-117,-95,-248,-73,-222,-10,-216,-216,-217,-212,-210,-200,-226,-214,-242,-212,-282,-280,-293,-249,-245,-249,-247,-58,-53,-64,-72,-75,-83,-84]} 1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. Nf3 e5 5. Bg5 Be7 6. e4 {A54: Old Indian Defence with Nf3, but without e4.} (6. e3 O-O (6... exd4 7. Nxd4 Nc5 8. Qc2 Ne6 9. Nxe6 Bxe6 10. Be2 O-O 11. O-O Nd7 12. Bxe7 Qxe7 13. Rfd1 {½-½ (13) Horvath,C (2507)-Todorov,T (2469) Ischia 2012}) 7. Qc2 h6 8. Bh4 c6 9. O-O-O Qa5 (9... exd4 10. Nxd4 Nc5) 10. Kb1 Re8 11. g4 (11. Rg1 $14) 11... Nxg4 $15 12. Rg1 (12. Bg3 $15) 12... Nf8 $2 (12... exd4 $17 {and life is bright.} 13. Bxe7 dxc3 14. Bxd6 Nc5) 13. Bd3 $2 (13. Bxe7 $16 Rxe7 14. Ne4) 13... exd4 (13... Bxh4 $15 14. Nxh4 exd4 15. exd4 Qh5) 14. exd4 $2 (14. Bxe7 $14 Rxe7 15. Nxd4) 14... Qh5 (14... Bxh4 $1 $17 15. Nxh4 Qh5) 15. Bxe7 Rxe7 16. Rg3 (16. Ne4 $1 $15) 16... f5 $2 (16... Nf6 $17 17. Nd2 Ne6) 17. Ne2 $1 $14 Qf7 (17... Ng6 {keeps the balance.} 18. Rf1 a6) 18. Rdg1 $1 $16 g5 (18... Bd7 $16 {was called for.}) 19. h4 Ng6 20. hxg5 h5 21. Rh3 $2 {[%mdl 8192]} (21. Rf1 $16) 21... Nxf2 $19 22. Rxh5 Nxd3 23. Qxd3 f4 $1 24. Qd2 Bf5+ 25. Ka1 Rae8 26. Nc3 Re3 27. Nh4 Nxh4 28. Rxh4 Bg6 29. a3 (29. Nd1 Re2 30. Qxf4) 29... f3 $1 $19 {aiming for ...f2.} 30. Rgh1 $2 (30. Rh6 {is a better defense.}) 30... f2 $19 31. Rh8+ Kg7 32. Rxe8 f1=Q+ 33. Rxf1 Qxf1+ 34. Ka2 {0-1 (34) Grandelius,N (2656)-Gledura,B (2652) Chess.com INT 2022}) 6... O-O 7. Bd3 c5 $146 (7... h6 8. Bh4 (8. Be3) 8... Re8 (8... Nxe4 $1 $15 9. Bxe7 Nxc3 10. Bxd8 Nxd1 11. Rxd1 Rxd8 12. dxe5 Re8) 9. O-O Nf8 10. dxe5 dxe5 11. Nxe5 Bd6 12. Nf3 {[%CAl Be4e5] Hoping for e5!} Ng6 $1 {Inhibits e5.} 13. Bxf6 (13. Bg3 $5 {[%CAl Re4e5]} Bg4 14. Bc2 $14) 13... Qxf6 14. h3 (14. Nd5 Qd8 15. Qc2) 14... c6 $15 15. Re1 Nf4 16. a3 $2 {[%mdl 8192]} (16. e5 Bxe5 17. Ne4) 16... Qg6 $19 17. e5 (17. Nh4 $19 Qg5 18. g3 Nxh3+ 19. Kg2 Nxf2 20. Qf3 Bxg3 21. Qxg3 Nxd3 22. Reb1) 17... Qxg2# {0-1 (17) Rataj,S (1031)-Sara,M (1686) Lichess.org INT 2021}) (7... c6 8. O-O Qb6 9. Na4 Qc7 10. Rc1 Re8 (10... exd4 11. Nxd4 Ne5) 11. d5 $14 c5 12. h3 Qd8 {[%CAl Bf6d5]} 13. Nc3 Rf8 (13... Nxd5 14. Nxd5 Bxg5) 14. Rb1 $2 (14. Be3 $16) 14... a5 $2 (14... Nxd5 $1 $17 15. Bxe7 (15. Nxd5 Bxg5) 15... Nxe7) 15. a3 $2 (15. Be3 $16) 15... Nxd5 $1 $15 16. Nxd5 Bxg5 17. Nxg5 Qxg5 18. f4 (18. Be2 $15) 18... exf4 $19 19. Rxf4 Ne5 {Inhibits Rg4.} 20. Kh2 Be6 21. Rf1 Rfd8 22. b3 {Kaskevich,R-Zakharenko,D Tomsk 2002 1-0 (48)} (22. Nf4)) (7... exd4 8. Nxd4 Nc5 9. Bc2 (9. Bf4 $14) 9... Nfxe4 $15 10. Bxe7 $1 Qxe7 11. Nd5 Qd8 12. O-O Nf6 13. Ne3 Ne6 14. Ndf5 g6 15. Ng3 Qe7 16. Re1 {[%CAl Bf2f4]} Qd8 17. Qd2 Ng7 18. h3 Ngh5 19. Nxh5 Nxh5 20. Nd5 Be6 21. Rad1 Rc8 22. Qd4 {Guimaraes,S-Garrido,N Fortaleza 1951 0-1 (40)}) 8. d5 $2 {Mistake. dxe5 was best. [#]} (8. dxe5 Nxe5 9. Nxe5 dxe5 10. O-O (10. h4 Be6 11. Qe2 Nd7 12. Bxe7 Qxe7 13. O-O-O Rad8)) 8... Nxd5 $1 $15 {[#]} 9. cxd5 $146 (9. Nxd5 Bxg5 10. h4 Be7 11. Qd2 Nf6 12. Ne3 a6 13. O-O-O b5 14. Qe2 $17 (14. g4 Nxg4 $19 (14... Be6 15. g5 {0-1 (46) Domingos,J (1994)-Mendes,A (2025) Brasilia 2010} Nh5 $1 16. Nf5 bxc4 17. Bb1 (17. Bf1 {keeps fighting.}) 17... Nf4 {[%CAl Bc4c3]} 18. Nxe7+ Qxe7 19. Qxd6 (19. Ng1 {might work better.} d5 20. exd5 Bxd5 21. f3) 19... Ne2+ $19 20. Kc2 Qxd6 21. Rxd6 Nd4+ 22. Nxd4 cxd4 23. h5 Rfd8 24. Rc6 Rdc8 25. Rb6 g6 26. hxg6 hxg6 27. f4 (27. Kc1) 27... exf4 $19 28. Rf1 c3 {[%CAl Bd4d3]} 29. bxc3 Rxc3+ 30. Kd2 f3 31. Rd6 Ra3 32. Rxd4 Rb8 33. Rd3 Rb2+ 34. Ke3 Rxd3+ 35. Bxd3 Rxa2 {[%CAl Bf3f2] Strongly threatening ...f2!} 36. Kxf3 Ra3 37. Ke2 Bd7 $2 (37... Kf8 $19 {White must now prevent ...Ke7.} 38. Rc1 a5) 38. Rc1 (38. Bc4) 38... Bb5 {Domingos,J (1994)-Mendes,A (2025) Brasilia 2010 0-1} (38... a5 $17)) 15. Nd5 Be6)) 9... Bxg5 10. Nxg5 Qxg5 11. O-O Qd8 (11... Nf6 {is interesting.} 12. Qc1 Qg6 13. f4 exf4 14. Qxf4 Nd7) 12. f4 $2 {Mistake. a4 was best.} (12. Qe2 $17) (12. a4 Nf6 13. Re1 Rb8 14. Nb1 Ne8 15. Nd2 f5 16. Qc2 g6 17. Rab1 fxe4) 12... Re8 $4 {Blunder. exf4 was best.} (12... exf4 13. Rxf4 Ne5 (13... a6 14. Be2 Qg5 15. Qc1 b5 16. a4 b4 17. Nd1 Re8 18. Qe3)) 13. Qf3 $2 {Mistake. f5 was best.} (13. f5 a6) 13... f6 $4 {Blunder. exf4 was best.} (13... exf4 14. Qxf4 Ne5 15. Be2 a6 16. a4 Bd7 17. h3 Rf8 18. Qg3 h6 19. b3) 14. Rad1 $4 {Blunder. f5 was best.} (14. f5 a6 15. a4 Qb6 16. Rf2 Qb4 17. Qe2 c4 18. Bxc4 Nb6 19. Bd3 Bd7) 14... exf4 $19 15. Qxf4 Ne5 16. Be2 Bd7 17. Bh5 Rf8 18. b3 a5 19. Na4 $6 {Inaccuracy. Be2 was best.} (19. Be2 a4) 19... b5 20. Nb2 a4 21. Nd3 axb3 22. axb3 Ra3 $2 {Mistake. Nxd3 was best.} (22... Nxd3 23. Rxd3 Qe7 24. h3 b4 25. Rg3 Ra2 26. Bg4 Bxg4 27. Qxg4 Ra7 28. Qh4) 23. Nxe5 $15 fxe5 24. Qxf8+ Qxf8 25. Rxf8+ Kxf8 {Weighted Error Value: White=0.62/Black=0.67 PRECISÃO LICHESS: BRANCAS 84% PRETAS 85%} 0-1 [Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.24"] [White "Luiz, Felipe De Moraes"] [Black "Lucas do Nasc. de Araujo"] [Result "1-0"] [ECO "C50"] [WhiteElo "1715"] [Annotator "Stockfish 16.1"] [PlyCount "99"] [EventDate "2024.??.??"] {[%evp 9,98,60,47,40,36,42,192,17,50,41,52,47,46,33,169,-10,-15,-23,20,23,268,268,436,396,471,461,464,464,478,483,513,503,578,564,556,553,547,542,924,907,29985,29986,29992,29993,29994,29989,29992,841,29992,29993,29993,29993,29995,29993,29997,29984,29983,29985,29984,29976,29985,29986,29986,29987,29987,29988,29987,29987,29990,29991,29993,29991,29992,29993,29993,29993,29994,29993,29993,29994,29994,29995,29995,29994,29996,29995,29997,29995,29995,29995,29999]} 1. e4 e5 2. Bc4 Nc6 3. Nf3 d6 4. O-O Be6 (4... Be7 5. Re1 Nf6 6. d3 O-O 7. a4 Na5 8. Ba2 c5 9. Nbd2 Nc6 10. Nf1 Be6 11. Ng3 h6 12. c3 Bxa2 13. Rxa2 Re8 14. h3 Bf8 15. Qe2 d5 16. Nf5 Kh7 17. g4 g6 18. Ng3 d4 19. Nh4 Ng8 20. Ng2 Qd7 21. c4 a6 22. Rf1 b5 23. b3 bxc4 24. bxc4 Rab8 25. f4 Rb1 26. fxe5 Nxe5 27. Bf4 Rxf1+ 28. Qxf1 Bg7 29. Rf2 Rf8 30. a5 Qe7 31. Bd2 Rb8 32. Bf4 Rb7 33. Kh2 Nf6 34. Bxe5 {Firouzja,A (2777)-Ghosh,D (2577) Chess.com INT 2023 1-0}) 5. Bxe6 (5. Bb3 Qd7 6. Nc3 O-O-O 7. d4 exd4 8. Nxd4 Nxd4 9. Qxd4 Kb8 10. Be3 c5 11. Qd2 Nf6 12. Bxe6 fxe6 13. a4 d5 14. exd5 exd5 15. Bf4+ Bd6 16. Nb5 Ne4 17. Qxd5 Bxf4 18. Qxe4 g5 19. g3 Rhe8 {Modric,N (2128)-Haitin,I (2281) chess.com INT 2023 1-0 (39)}) 5... fxe6 6. Nc3 {C50: Hungarian Defence and Giuoco Pianissimo.} Nf6 7. d4 Be7 $2 $146 {Mistake. exd4 was best.} (7... exd4 8. Nxd4 Nxd4 (8... Qd7 9. Nxc6 Qxc6 10. Qd3 Be7 11. Re1 a5 12. Qh3) 9. Qxd4 e5 (9... Qd7 $14) 10. Qd3 (10. Qb4 $16) 10... Be7 (10... c6 $14) 11. f4 (11. Qb5+ $16 Qd7 12. Qxb7) 11... exf4 12. Bxf4 a6 (12... O-O $14) 13. Rae1 (13. Rad1 $16) 13... O-O 14. Nd5 Qd7 (14... Kh8 $14) 15. e5 $1 $18 dxe5 $2 (15... Nxd5 16. Qxd5+ Kh8) 16. Nxf6+ $18 Rxf6 (16... Bxf6 17. Qxd7 exf4 18. Rxf4 Rf7 19. Re8+ Rxe8 20. Qxe8+ Rf8) 17. Qxd7 $18 Bc5+ 18. Be3 Rxf1+ 19. Kxf1 Bxe3 20. Rxe3 Rf8+ 21. Rf3 Rxf3+ 22. gxf3 {Nemec,P (2233)-Nekarda,T Stare Mesto 2011 1-0}) 8. Bg5 $2 {Mistake. d5 was best.} (8. d5 Nd4 9. Nxd4 exd4 10. Qxd4 e5 11. Qb4 b6 12. Qb5+ Qd7) 8... h6 9. Bxf6 Bxf6 {[#]} 10. d5 $146 (10. dxe5 Nxe5 11. Nd4 Qe7 12. f4 $5 {[%CAl Rf4e5]} (12. Qh5+ Nf7 13. Rad1 O-O-O 14. Qh3 (14. Rfe1 g5 $17 (14... e5 15. Nf5 $16 (15. Qg4+ Kb8 16. Nd5 $14 (16. Ndb5 {1-0 (35) Hajkova,K-Kodytkova,V Svetla nad Sazavou 1996} a6 (16... c6 $15 17. Na3 a6) 17. Na3 (17. Nd5 Qd7 18. Qxd7 Rxd7 19. Nxf6 gxf6 20. Nc3) 17... Qd7 18. Qe2 Qc6 (18... Ng5) 19. Rd5 (19. Nd5 $16) 19... Rhe8 (19... Rhf8) 20. Red1 (20. Ra5 $1 $16) 20... Re7 (20... Ng5 $14) 21. R1d2 $2 (21. Ra5 $1 $18) 21... Rde8 $2 {[#]} (21... Rf8 $15 {keeps the upper hand.}) 22. Qg4 $2 (22. Ra5 $1 $18) 22... Rd7 $2 {[#]} (22... Ng5 $17 {Strongly threatening ...Rf7.} 23. R5d3 Rf7) 23. Qg6 $2 (23. Nc4 $1 $14 Rde7 (23... b6 24. R5d3) 24. Ne3) 23... Re6 (23... Rf8 $17) 24. Qh7 $2 (24. Qg4 Re8 25. Nc4) 24... Ka7 (24... Nd8 $19 {has better winning chances. And now ...Rf7 would win.} 25. g3 Rf7) 25. Qg8 (25. Qg6 $17) 25... Rd8 $4 {[%mdl 8192]} (25... Nd8 $19 {Hoping for ...Rf7.} 26. Ra5 Rf7) 26. Qxf7 $18 Rde8 27. Qh5 Qd7 28. Ra5 Qc6 29. Ncb5+ Kb8 30. Qf7 $2 (30. Nc3 $18) 30... R8e7 31. Qf8+ Re8 32. Qf7 Qxe4 $2 {[%mdl 8192]} (32... R8e7 33. Qg8+ Re8) 33. Qxc7+ Ka8 34. Rxa6+ bxa6 35. Qa7# {1-0 (35) Hajkova,K-Kodytkova,V Svetla nad Sazavou 1996}) 16... h5 17. Qg6) 15... Qd7 16. Nd5)) 14... Bxd4 15. Rxd4) 12... O-O-O 13. f5 (13. fxe5 dxe5 14. Qg4 Rxd4 $17)) 10... exd5 11. Nxd5 g5 $2 {Mistake. O-O was best.} (11... O-O 12. b4) 12. Nxf6+ $4 {Blunder. c3 was best.} (12. c3 Bg7 13. Qb3 Rb8 14. Nd2 Qd7 15. Nc4 Nd8 16. Nce3 c6 17. Nb4 a5) 12... Qxf6 13. b4 Nxb4 {...Na6 is the strong threat.} 14. Rb1 Nxa2 $4 {Blunder. a5 was best.} (14... a5 15. a3) 15. Rxb7 $18 Rh7 $2 {Mistake. Qe6 was best.} (15... Qe6 16. Rxc7 (16. Rb3 c5 17. c3 O-O 18. Ra3 a5 19. Nd2 Nb4 20. cxb4 axb4 21. Rxa8) 16... a5) 16. Qd5 Rg7 17. Qxa2 g4 18. Nd2 a6 19. Qa4+ Kd8 20. Qc6 h5 {[#]} 21. Rxc7 $3 {[%mdl 512]} Rxc7 22. Qxa8+ Kd7 23. Qxa6 Rxc2 $6 {Inaccuracy. Qe6 was best.} (23... Qe6 24. Rd1 h4 25. Nf1 Ke8 26. Qd3 Qc8 27. Ra1 h3) 24. Qa4+ Rc6 25. Rc1 Qh6 $2 {Checkmate is now unavoidable. Qd8 was best.} (25... Qd8 26. Qxc6+ Ke6 27. Qb7 h4 28. Qh7 g3 29. hxg3 hxg3 30. Qg6+ Ke7 31. Qxg3) 26. Qxc6+ Ke6 27. Nb3 $2 {Lost forced checkmate sequence. Qc8+ was best.} (27. Qc8+ Kf6 28. Qf5+ Kg7 29. Rc7+ Kg8 30. Qf7+ Kh8 31. Rc8+ Qf8 32. Rxf8#) 27... Ke7 $2 {Checkmate is now unavoidable. Qf8 was best.} (27... Qf8 28. Nc5+ Kf7 29. Nb7 Ke6 30. Qd5+ Kd7 31. Nc5+ Ke8 32. Qe6+ Qe7 33. Qg8+) 28. Rd1 $4 {Lost forced checkmate sequence. Qc7+ was best.} (28. Qc7+ Kf6 29. Qxd6+ Kg5 30. Qxe5+ Kg6 31. Rc6+ (31. Qf5+ Kg7 32. Rc7+ Kg8 33. Qd5+ Kh8) 31... Kh7 32. Rc7+ Kg8 33. Qd5+ Kh8 34. Qd8+ Qf8 35. Qxf8#) 28... Qf4 $4 {Checkmate is now unavoidable. Qe6 was best.} (28... Qe6 29. Nd2 Qd7 30. Qc1 h4 31. Nc4 Qe6 32. Qg5+ Kf7 33. Ne3 Qg6 34. Qd8) 29. Qxd6+ {White mates.} Kf7 30. Qd5+ Ke7 31. Qd7+ Kf6 32. Qf5+ $4 {Lost forced checkmate sequence. Rd6+ was best.} (32. Rd6+ Kg5 33. Qd8+ Qf6 34. Qxf6#) 32... Qxf5 33. exf5 Kxf5 34. g3 e4 35. Rd5+ Kg6 $4 {Checkmate is now unavoidable. Ke6 was best.} (35... Ke6 36. Ra5 h4 37. gxh4 g3 38. hxg3 Kd7 39. Nd2 Kc7 40. Nxe4 Kb6 41. Rg5) 36. Re5 Kh6 37. Rxe4 Kg6 38. f4 gxf3 39. Kf2 Kg5 40. h4+ Kf5 41. Kxf3 Kg6 42. Re5 Kh6 43. Re6+ Kg7 $4 {Checkmate is now unavoidable. Kh7 was best.} (43... Kh7 44. Kf4 Kg7 45. Kg5 Kf7 46. Re5 Kg7 47. Rf5 Kh8 48. Kg6 Kg8 49. Rf3) 44. Kf4 Kf7 45. Kf5 Kg7 46. Ra6 Kh7 47. Kg5 Kg8 48. Ra7 Kf8 49. Kg6 Kg8 50. Ra8# {Weighted Error Value: White=0.37/Black=1.05 PRECISÃO LICHESS: BRANCAS 94% PRETAS 87%} 1-0 [Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.25"] [White "Luis Felipe Abreu de Carvalho"] [Black "Waldefran, Clementino Chagas"] [Result "0-1"] [ECO "B10"] [BlackElo "1712"] [Annotator "Stockfish 16.1"] [PlyCount "52"] [EventDate "2024.??.??"] {[%evp 9,52,-16,-12,-11,-12,-46,-28,-55,-14,-21,11,-32,-10,-59,-25,-102,-112,-132,-44,-96,-24,-25,-25,-178,-163,-177,-95,-82,-87,-89,-88,-105,-89,-170,-83,-100,-42,-285,-289,-274,-64,-132,-54,-481,-483]} 1. e4 c6 2. Nf3 d5 3. exd5 cxd5 4. Bb5+ Bd7 5. Qe2 (5. Bxd7+ Nxd7 6. O-O Ngf6 7. Re1 e6 8. b3 Bd6 9. Bb2 Qc7 10. h3 O-O-O 11. a4 Kb8 12. a5 a6 13. Nc3 Rhg8 14. Na4 g5 15. c4 g4 16. hxg4 Rxg4 17. c5 Bf4 18. Nb6 Rdg8 19. Nxd7+ Nxd7 20. c6 Rxg2+ 21. Kf1 bxc6 22. Rc1 e5 23. Qc2 e4 24. Nh4 Rxf2+ 25. Kxf2 Bg3+ 26. Ke2 Bxh4 27. Rh1 Rg2+ 28. Kd1 Qf4 29. Qc3 Bg5 30. Qb4+ Ka8 31. Bc3 Qf3+ 32. Kc2 Qd3+ 33. Kb2 Bxd2 34. Bxd2 Rxd2+ {Pham,L (2369)-Garcia Ramos,D (2428) Chess.com INT 2021 0-1 (69)}) 5... Nc6 (5... Bxb5 6. Qxb5+ Qd7 $1 {[%CAl Rd7b5]} 7. Qxd7+ Nxd7 8. c3 e6 9. d3 Bd6 10. a4 a6 (10... Nc5 $5 {[%CAl Rc5b3]} 11. Ke2 Ne7 $15) 11. Ke2 Ne7 12. Be3 Nc6 13. Nbd2 Nde5 14. Nxe5 Bxe5 15. Nf3 Bf6 16. Bc5 O-O-O 17. Ra3 d4 18. c4 a5 19. Rb3 Rd7 20. Rb5 {Migot,T (2353)-Punin,A (2289) Chess.com INT 2022 1-0 (48)}) 6. O-O {[#] B10: Caro-Kann: 2 d3 and 2 c4.} e6 $146 (6... Nf6 7. Bxc6 bxc6 8. Ne5 e6 9. d3 Bd6 10. Bg5 Qc7 11. Re1 Rb8 12. b3 Bxe5 13. Qxe5 Qxe5 14. Rxe5 {0-1 (58) Durak,O (1392)-Alagoz,M (1768) Manavgat 2016} c5 (14... Ng4 15. Re1 f6 16. Bf4 Rc8 17. h3 Nh6 $1 18. Be3 (18. Bxh6 $5 gxh6 19. c4) 18... a6 19. Bc5 (19. Bxh6 $5 gxh6 20. Nc3) 19... Kf7 20. Nc3 e5 (20... Nf5) 21. Na4 {Durak,O (1392)-Alagoz,M (1768) Manavgat 2016 0-1 (58)} (21. f4 $14) 21... Rb8 (21... Nf5) 22. Nb6 (22. d4 $16) 22... Be6 23. a4 g5 (23... Nf5) 24. a5 (24. d4 $14) 24... g4 (24... Nf5) 25. h4 (25. hxg4 $16 {And now f3 would win.} Bxg4 26. f3) 25... g3 26. fxg3 Rhg8 27. Bf2 Ng4 (27... Nf5 $15) 28. c4 (28. c3) 28... d4 $17 29. Rab1 Bf5 30. Red1 (30. Rbd1 $17 {was called for.}) 30... Rg7 $2 (30... Nxf2 $19 31. Kxf2 Rg4) 31. c5 $2 {[%mdl 8192]} (31. Rb2 $15) 31... Ke6 (31... Nxf2 32. Kxf2 Rbg8) 32. Rd2 h5 33. Be1 Ne3 34. Re2 $2 (34. Bf2 Rg4 35. b4) 34... Bg4 (34... Bxd3 35. Rxe3 Bxb1) 35. Rf2 Bd1 36. Rbb2 {Durak,O (1392)-Alagoz,M (1768) Manavgat 2016 0-1})) 7. a3 Bd6 8. c3 {Black has an edge.} Nf6 9. d4 Qc7 10. Bxc6 $6 {Inaccuracy. Bd3 was best.} (10. Bd3 O-O) 10... bxc6 11. Ne5 O-O (11... c5 $5 {[%CAl Ra8b8]}) 12. Bg5 $6 {Inaccuracy. Bf4 was best.} (12. Bf4) 12... Ne4 $36 {[%mdl 2048] White is under strong pressure.} 13. Nxd7 Qxd7 $6 {Inaccuracy. Bxh2+ was best.} (13... Nxg5 14. Nxf8 Rxf8 15. h4 $16) (13... Bxh2+ 14. Kh1 Qxd7 15. Kxh2 Nxg5) 14. Bh4 (14. Be3 $15) 14... f5 (14... Qc7 $17 15. g3 c5) 15. f3 Nf6 16. g4 $4 {Blunder. Bxf6 was best.} (16. Bxf6 Rxf6 17. f4) 16... fxg4 $6 {Inaccuracy. Rae8 was best.} (16... Rae8 17. Bxf6 gxf6 18. Kh1 e5 19. Qg2 Kh8 20. Nd2 Rg8 21. Qf2 fxg4 22. fxg4) 17. fxg4 Ne4 (17... e5 $19 18. Bxf6 gxf6) 18. Nd2 $17 Nxd2 19. Qxd2 e5 {[%CAl Be6e5,Be5e4][%mdl 32]} 20. h3 e4 21. b4 $6 {Inaccuracy. Rxf8+ was best.} (21. Rxf8+ Rxf8 22. Rf1) 21... Qe6 $6 {Inaccuracy. Qc7 was best.} (21... Qc7 22. Qg2 (22. Kg2 Bf4 23. Qe2 Rae8 24. a4 Qd6 25. b5 h6 26. Be1 Re7 27. Ra2) 22... Bf4) 22. Qe3 Bc7 (22... a5 $17) 23. Ra2 $4 {Blunder. Bg3 was best.} (23. Bg3 Bxg3 24. Qxg3 Qh6 25. a4 Qd2 26. Rxf8+ Rxf8 27. Rf1 Rxf1+ 28. Kxf1 Kf7) 23... Rxf1+ $19 24. Kxf1 {[#]} a5 $4 {Blunder. Bf4 was best.} (24... Bf4 25. Qxf4 (25. Qe1 Rf8 (25... e3 26. Qe2 Qh6 27. Be1 Qxh3+ 28. Qg2 Qh6 29. c4 Rf8 30. Kg1)) 25... Rf8 26. Qxf8+ Kxf8) 25. Bg3 $4 {Blunder. Kg2 was best.} (25. Kg2) 25... Bb6 $4 {Blunder. Bxg3 was best.} (25... Bxg3 26. Qxg3 axb4 27. cxb4 e3 28. Re2 Re8 29. Kg2 Qe4+ 30. Qf3 Qxd4 31. Re1) 26. Be5 $4 {[%mdl 8192] Blunder. Rf2 was best.} (26. bxa5 $15 Bxa5 27. Kg2) (26. Rf2) 26... Qxe5 {Weighted Error Value: White=0.99/Black=0.44 PRECISÃO LICHESS: BRANCAS 72% PRETAS 80%} 0-1 [Event "ABERTO DE XADREZ TTC 2024"] [Site "Rio de Janeiro"] [Date "2024.08.03"] [Round "1.26"] [White "Flavio C. Balod"] [Black "Willian Wallace Gomes C. da S"] [Result "1-0"] [ECO "B50"] [WhiteElo "1709"] [Annotator "Stockfish 16.1"] [PlyCount "37"] [EventDate "2024.??.??"] {[%evp 9,36,231,224,214,209,223,351,328,342,333,374,370,371,338,461,445,533,528,621,572,836,820,29992,29988,29986,29985,29995,29991,29999]} 1. e4 c5 2. Nf3 d6 3. d4 Bg4 $2 {Mistake. cxd4 was best.} (3... cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3) 4. dxc5 (4. Bc4 Nc6 5. d5 Nd4 6. c3 Nxf3+ 7. gxf3 Bd7 8. f4 g6 9. Be3 Qc7 10. Nd2 Bg7 11. Qc2 b5 12. Be2 Qc8 13. Nf3 Rb8 14. e5 Bg4 15. exd6 exd6 16. Ng5 Bd7 17. h4 h5 18. Bd3 Ne7 {Ren,Z-Bao Yin Chu Gu La Hohhot CHN 2023 ½-½ (51)}) 4... Nd7 $6 $146 {Inaccuracy. Qa5+ was best.} (4... Qa5+ 5. Nc3 Qxc5 6. Be3 (6. Bd3 Nf6 7. h3 Bxf3 8. Qxf3 Nc6 9. O-O e6 10. Be3 Qa5 11. Qe2 Be7 12. a3 O-O 13. b4 Qc7 14. Nb5 Qd7 15. Rfd1 a6 16. Nd4 d5 17. Nxc6 Qxc6 18. e5 Nd7 19. f4 {Okike,D (2177)-Fernandez,D (2466) Chess.com INT 2020 0-1 (37)} Bd8 20. Kh1 Bb6 21. Bd2 f5 22. c4 Rac8 23. c5 Bd8 24. Rdc1 Qc7 25. Rab1 Be7 26. Be3 Qd8 27. c6 Rxc6 28. Rxc6 bxc6 29. Bxa6 c5 30. b5 Qa5 31. Qb2 c4 32. Ra1 Nc5 33. Bd2 Qb6 34. Bb4 {Okike,D (2177)-Fernandez,D (2466) Chess.com INT 2020 0-1}) (6. Be2 Nf6 7. O-O Bxf3 8. Bxf3 e5 9. Be3 Qc6 10. Qe2 a6 11. Rfd1 Be7 12. a4 O-O 13. Ra3 Nbd7 14. a5 Nc5 15. Bxc5 dxc5 16. Nd5 Nxd5 17. Rxd5 f6 18. c4 b5 19. axb6 {Bittner,F-Ross,H Baunatal 1999 1-0 (55)}) 6... Qb4 (6... Qa5 7. e5 Nc6 8. Bb5 a6 9. Bxc6+) 7. Bb5+ Nc6 8. O-O Nf6 9. Nd5 Bxf3 10. gxf3 Qa5 11. e5 Nxd5 12. Qxd5 Qc7 13. Bf4 dxe5 14. Bxe5 Qd7 15. Qb3 a6 16. Rad1 Qc8 17. Bxc6+ Qxc6 18. Rd3 f6 19. Bg3 {Adam,H-Bacher,R Vienna 1938 1-0 (45)}) (4... Bxf3 5. Qxf3 Qa5+ 6. Nc3 Qxc5 7. Be3 Qc7 8. Nd5 Qxc2 9. Rc1 Qxb2 10. Rc8+ Kd7 11. Qf5+ e6 12. Qxf7+ Ne7 13. Qe8# {1-0 (13) Gordon,S-Jones,S USA 1980}) 5. cxd6 exd6 {[#]} 6. Be2 $146 {B53: Sicilian: 2...d6: Lines with Qxd4.} (6. Nc3 Qa5 7. Bd2 a6 (7... Ne5 8. Nd5 Qc5 (8... Qd8 9. Nxe5 Bxd1 10. Bb5+ Qd7 11. Bxd7+ Kd8 12. Nxf7+ Kxd7 13. Rxd1 {1-0 (25) Ribaudo,J-Melman,N ICCF email 2009} h5 14. Nxh8 Nf6 15. Nxf6+ gxf6 16. Ng6 Bg7 17. Bf4 Re8 18. Rxd6+ Kc8 19. Ke2 Rxe4+ 20. Kf3 Rc4 21. Ne7+ Kc7 22. Rd4+ Kb6 23. Rxc4 {Rd1 would kill now.} Kb5 24. Rc7 {Intending Re1 and mate.} Kb6 25. Re1 {1-0 (25) Ribaudo,J-Melman,N ICCF email 2009}) 9. Bb5+ Bd7) 8. h3 Be6) 6... Be7 7. O-O Nh6 $6 {Inaccuracy. Ngf6 was best.} (7... Ngf6 8. Nc3 (8. Nd4 Bxe2 9. Qxe2 O-O 10. c4 Re8 11. Nc3 Bf8 12. f3 Rc8 13. Nf5) 8... O-O) 8. Bxh6 $18 {White is winning.} gxh6 9. Nd4 h5 10. Bxg4 hxg4 11. Qxg4 d5 $6 {Inaccuracy. Qb6 was best.} (11... Qb6 12. Ne2 h5 13. Qf5 Rc8 14. Nbc3 Rc5 15. Qh3 Rg5 16. Nd5 Qc5 17. Nxe7) 12. exd5 Nc5 13. Nc3 Rc8 $6 {Inaccuracy. Kf8 was best.} (13... Kf8 14. Qf3 Rg8 15. Ne6+ Nxe6 16. dxe6 Rg7 17. Rad1 Qb6 18. Rfe1 Qc6 19. Nd5) 14. Rfe1 Rc7 $6 {Inaccuracy. Kf8 was best.} (14... Kf8 15. Qf3 Bf6 16. Rad1 Bxd4 17. Rxd4 Rg8 18. d6 Qg5 19. Rf4 Rg6 20. g3) 15. Nf5 {[%CAl Bd4f5,Bf5e7,Be7c6][%mdl 32]} Kd7 16. Nxe7+ {White mates.} Ke8 17. Nc6+ Qe7 18. Nxe7 Rxe7 $6 {Checkmate is now unavoidable. Nb3 was best.} (18... Nb3 19. axb3 h5 20. Qg7 Rxe7 21. Qxh8+ Kd7 22. Rxe7+ Kxe7 23. Re1+ Kd7 24. Qe8+) 19. Qc8# {Weighted Error Value: White=0.10 (very precise) /Black=0.98 PRECISÃO LICHESS: BRANCAS 97% PRETAS 81%} 1-0