[Event "St Petersburg-ch"] [Site "St Petersburg"] [Date "2009.05.14"] [Round "7"] [White "Ivanov, Sergey"] [Black "Popov, Valerij"] [Result "0-1"] [WhiteElo "2551"] [BlackElo "2570"] [Variant "Standard"] [TimeControl "-"] [ECO "D47"] [Opening "Semi-Slav Defense: Meran Variation, Wade Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 Nf6 5. Nf3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 { D47 Semi-Slav Defense: Meran Variation, Wade Variation } 9. O-O a6 10. a4 b4 11. Ne4 c5 12. Nxf6+ Qxf6 13. Re1 h6 14. a5 Bd6 15. e4?! { (-0.46 → -1.48) Inaccuracy. Bf1 was best. } (15. Bf1 Rc8) 15... cxd4 16. Qa4 e5 17. Bd2 Qe7 18. Nxd4? { (-1.47 → -2.81) Mistake. Bc4 was best. } (18. Bc4 Rc8) 18... exd4 19. e5 Bc5 20. Bc4?! { (-2.57 → -3.67) Inaccuracy. e6 was best. } (20. e6 fxe6 21. Rxe6 Qxe6 22. Re1 Qxe1+ 23. Bxe1 Rc8 24. Bxb4 Rf8 25. Bd2 Rf6 26. b4 Be7) 20... O-O-O?? { (-3.67 → -0.06) Blunder. O-O was best. } (20... O-O) 21. e6 Nf6 22. Bxa6 Bxa6 23. Qc6+ Kb8 24. Qxa6 Bd6?! { (-1.03 → -0.12) Inaccuracy. Ba7 was best. } (24... Ba7 25. Re5 Ka8 26. Bxb4 Qc7 27. Rb5 fxe6 28. Bc5 Rc8 29. h3 d3 30. Rd1 Ne4 31. Bxa7) 25. Rac1?? { (-0.12 → -2.57) Blunder. exf7 was best. } (25. exf7 Qb7 26. Qc4 Qd5 27. Qa6 Rd7 28. Rac1 Qb7 29. Qc4 Rxf7 30. Re6 Rd7 31. Rxd6 Rxd6) 25... Qb7 26. Qd3 fxe6?! { (-2.42 → -1.59) Inaccuracy. Rhe8 was best. } (26... Rhe8 27. exf7 Rxe1+ 28. Bxe1 Qxf7 29. Rc6 Qh5 30. Rb6+ Kc7 31. Qc4+ Qc5 32. Qa6 Kd7 33. g3) 27. Rxe6 Ka8 28. Bxb4 Qxb4 29. Rc6 Nd5 30. Qa6+ Kb8 31. Rcxd6 Rxd6 32. Rxd6? { (-2.89 → -5.16) Mistake. Qxd6+ was best. } (32. Qxd6+ Qxd6) 32... Qe1+?? { (-5.16 → -1.84) Blunder. d3 was best. } (32... d3 33. g3) 33. Qf1 Qxa5 34. g3? { (-1.64 → -3.12) Mistake. b4 was best. } (34. b4 Nxb4) 34... Rf8?? { (-3.12 → -0.71) Blunder. Qc5 was best. } (34... Qc5 35. Qa6 Kc7 36. Rg6 Nf6 37. Rxg7+ Nd7 38. Rg4 Rb8 39. Qxh6 Rxb2 40. Qa6 Rb1+ 41. Kg2) 35. Qe2?? { (-0.71 → -4.25) Blunder. b4 was best. } (35. b4) 35... Rd8?? { (-4.25 → -0.88) Blunder. Qc5 was best. } (35... Qc5 36. Rg6 d3 37. Qe5+ Kc8 38. Qe6+ Kb7 39. Rxg7+ Nc7 40. Qb3+ Kc8 41. Qxd3 Qxf2+ 42. Kh1) 36. Ra6?? { (-0.88 → -4.15) Blunder. Qe5 was best. } (36. Qe5) 36... Qb4 37. Qe5+ Nc7 38. Rc6 Rd7 39. Qf5 Re7 40. Qf8+?! { (-3.74 → -4.78) Inaccuracy. Qf4 was best. } (40. Qf4) 40... Kb7 41. Qf3 Qe1+ 42. Kg2 Qe4 43. Rc5?! { (-4.65 → -6.14) Inaccuracy. Qxe4 was best. } (43. Qxe4) 43... Kb6 44. b4 d3 45. Rc3 Qxf3+ 46. Kxf3 Rd7 { White resigns. } 0-1