Entenda o sacrifício teórico de Dama na índia do Rei de negras!

[PNG DA PARTIDA]
[Event "Livro: Partidas Magistrais de Xadrez. Volume 2 - Aberturas fechadas: Partida 25: (Bobotsov x Thal) Sacrifício estratégico da Rainha!"]
[Date "2025.10.27"]
[Result "*"]
[Variant "Standard"]
[ECO "E81"]
[Opening "King's Indian Defense: Sämisch Variation, Bobotsov-Korchnoi-Petrosian Variation"]
[StudyName "Livro: Partidas Magistrais de Xadrez. Volume 2 - Aberturas fechadas"]
[ChapterName "Partida 25: (Bobotsov x Thal) Sacrifício estratégico da Rainha!"]
[ChapterURL "https://lichess.org/study/n6xwV1c8/Cw..."]
[Annotator "https://lichess.org/@/Bethinho"]
[UTCDate "2025.10.27"]
[UTCTime "20:38:19"]

1. d4 { [%eval 0.17] } 1... Nf6 { [%eval 0.19] } 2. c4 { [%eval 0.18] } 2... g6 { [%eval 0.28] } 3. Nc3 { [%eval 0.18] } 3... Bg7 { [%eval 0.46] } 4. e4 { [%eval 0.4] } 4... d6 { [%eval 0.55] } 5. f3 { [%eval 0.26] } 5... O-O { [%eval 0.37] } 6. Nge2 { [%eval 0.22] } 6... c5 { [%eval 0.35] [%cal Gc7c5] } 7. Be3 { [%eval 0.31] } 7... Nbd7 { [%eval 0.48] } 8. Qd2 { [%eval 0.64] [%cal Gh2h5] } 8... a6 { [%eval 0.73] } 9. O-O-O { [%eval 0.56] } 9... Qa5 { [%eval 0.61] [%cal Gd8a5,Ga5a2] } 10. Kb1 { [%eval 0.62] } 10... b5 { [%eval 0.65] } 11. Nd5? { [%eval -0.54] } { Mistake. h4 was best. } { [%cal Gd2a5] } (11. h4) 11... Nxd5 { [%eval -0.52] [%cal Bd2a5] } (11... b4 12. Nxe7+ Kh8 13. Nxc8 Raxc8) (11... Qd8 12. Nxf6+ Nxf6 13. dxc5) 12. Qxa5 { [%eval -0.35] } 12... Nxe3 { [%eval -0.29] } 13. Rc1 { [%eval -0.34] } 13... Nxc4 { [%eval -0.31] } 14. Rxc4?! { [%eval -0.99] } { Inaccuracy. Qe1 was best. } (14. Qe1 cxd4) 14... bxc4 { [%eval -0.88] [%csl Gf8,Gg7,Ga5] } 15. Nc1?! { [%eval -1.87] } { Inaccuracy. Nf4 was best. } { [%csl Gd4][%cal Gg7d4] } (15. Nf4) 15... Rb8 { [%eval -1.76] [%csl Gb2][%cal Gb8b2] } 16. Bxc4 { [%eval -1.81] } 16... Nb6 { [%eval -1.24] } 17. Bb3 { [%eval -1.38] [%cal Gc4a6,Gc5c4] } (17. Bxa6 Ra8 { [%cal Ga5b6] }) 17... Bxd4 { [%eval -1.44] } 18. Qd2?? { [%eval -3.97] } { Blunder. Ne2 was best. } { [%cal Gc1e2] } (18. Ne2 Be5) 18... Bg7 { [%eval -3.98] } (18... c4) (18... Bd7 19. Ne2 { [%cal Ge2d4] } 19... Bg7) 19. Ne2 { [%eval -3.9] } (19. h4) 19... c4 { [%eval -4.0] } 20. Bc2 { [%eval -3.79] } 20... c3 { [%eval -3.81] } 21. Qd3 { [%eval -3.6] } (21. Nxc3 Nc4 22. Qc1 Bxc3 { [%cal Gb2c3] } 23. Bb3 Nd2+ 24. Ka1 Nxb3+ 25. axb3 Bg7) 21... cxb2 { [%eval -4.04] } 22. Nd4 { [%eval -4.56] } 22... Bd7 { [%eval -4.52] } 23. Bd1?! { [%eval -6.23] } { Inaccuracy. Rd1 was best. } (23. Rd1 a5 24. f4 Rfc8 25. g4 Na4 26. Bxa4 Bxa4 27. Nb3 Bd7 28. Nd4 Bxg4) 23... Rfc8 { [%eval -6.27] [%cal Gh2h4] } 24. Bb3 { [%eval -5.44] } 24... Na4 { [%eval -6.69] [%cal Ga4c3,Gc8c3] } 25. Bxa4 { [%eval -6.86] } 25... Bxa4 { [%eval -7.12] } 26. Nb3 { [%eval -6.77] } 26... Rc3 { [%eval -6.41] [%cal Gg7c3] } 27. Qxa6 { [%eval -7.62] } 27... Bxb3 { [%eval -6.56] } 28. axb3 { [%eval -6.44] } 28... Rbc8 { [%eval -6.29] } 29. Qa3?? { [%eval #-3] } { Checkmate is now unavoidable. Qxc8+ was best. } (29. Qxc8+ Rxc8 30. Rd1 Ra8 31. Kc2 h5 32. f4 Kh7 33. Re1 Bf6 34. Rd1 Ra1) 29... Rc1+ { [%eval #-2] } 30. Rxc1 { [%eval #-2] } 30... Rxc1+ { [%eval #-1] } 31. Ka2 { [%eval #-1] } 31... Ra1# (31... b1=Q#) (31... b1=B#) *