[Event "Russian Cup"] [Site "Kstovo"] [Date "1997.05.01"] [Round "1"] [White "Tregubov, Pavel V"] [Black "Krivonogov, Alexander"] [Result "1-0"] [WhiteElo "2525"] [BlackElo "2310"] [Variant "Standard"] [TimeControl "-"] [ECO "D71"] [Opening "Neo-Grünfeld Defense: Exchange Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5 5. cxd5 Nxd5 { D71 Neo-Grünfeld Defense: Exchange Variation } 6. e4 Nb6 7. Ne2 O-O?! { (0.00 → 0.57) Inaccuracy. c5 was best. } (7... c5 8. d5 e6 9. Nbc3 exd5 10. exd5 O-O 11. O-O Bf5 12. d6 Qd7 13. Be3 Na6 14. Qb3) 8. O-O c6 9. Nbc3 e5 10. dxe5 Qxd1 11. Rxd1 Bxe5 12. Bh6 Re8 13. f4 Bh8 14. Kf2 Bg4 15. Rac1 Na6 16. h3 Bxe2 17. Kxe2 Nc5 18. e5 f6 19. Nb5 cxb5 20. Rxc5 fxe5 21. Rxb5 exf4+ 22. Kf1 Rad8?! { (0.07 → 0.64) Inaccuracy. fxg3 was best. } (22... fxg3 23. Bxb7 Rad8 24. Rxd8 Rxd8 25. Kg2 Bf6 26. Bf3 Na4 27. b4 Nc3 28. Ra5 Bd4 29. Bd2) 23. Rxd8 Rxd8 24. Bxf4 Rd1+ 25. Ke2 Rb1 26. Bxb7 Rxb2+ 27. Rxb2 Bxb2 28. Kd3 Nd7 29. Bc8 Nb6 30. Ba6 Kg7?! { (0.87 → 1.72) Inaccuracy. Nd7 was best. } (30... Nd7 31. Be3 Nb6 32. g4 Kf7 33. Kc2 Be5 34. Kb3 Bg3 35. Bb7 Ke6 36. Kb4 Kd6 37. Kb5) 31. Bb8 Nd5 32. Bb7 Nb4+? { (1.73 → 3.16) Mistake. Nf6 was best. } (32... Nf6 33. Bxa7 Ba3 34. Bd4 Kf7 35. Kc4 Nd7 36. Bd5+ Ke7 37. g4 Kd6 38. Bg8 h5 39. gxh5) 33. Kc4 Nxa2 34. Kb3 Bd4 35. Kxa2 Kf6 36. Kb3 Be5 37. Bxe5+ Kxe5 38. Kc4 h5? { (2.34 → 4.73) Mistake. a5 was best. } (38... a5 39. Bc6) 39. Kd3 h4?? { (4.00 → 13.41) Blunder. g5 was best. } (39... g5 40. Ba6) 40. g4 Kf4 41. Ke2?! { (9.43 → 5.90) Inaccuracy. Kd4 was best. } (41. Kd4) 41... Kg3? { (5.90 → 117.11) Mistake. a5 was best. } (41... a5 42. Bc6) 42. Ke3 a5?! { (53.78 → Mate in 58) Checkmate is now unavoidable. g5 was best. } (42... g5 43. Ke4) 43. Bc6 Kxh3 44. Kf4 Kh2 45. g5 Kh3 46. Ke5 Kg4 47. Kf6 Kh5?! { (51.15 → Mate in 1) Checkmate is now unavoidable. Kf4 was best. } (47... Kf4 48. Kxg6 Ke5 49. Kf7 Kd6 50. g6 Kxc6 51. g7 h3 52. g8=Q Kb5 53. Qg4 a4 54. Qxh3) 48. Bf3# { White wins by checkmate. } 1-0