[Event "MathMems Open Chess Arena"] [Site "https://lichess.org/eXfhLKUg"] [Date "2021.02.20"] [White "IvanBoiko"] [Black "vstawer"] [Result "0-1"] [UTCDate "2021.02.20"] [UTCTime "13:29:40"] [WhiteElo "982"] [BlackElo "1165"] [WhiteRatingDiff "-35"] [BlackRatingDiff "+9"] [Variant "Standard"] [TimeControl "600+2"] [ECO "D02"] [Opening "Queen's Pawn Game: Chigorin Variation"] [Termination "Time forfeit"] [Annotator "lichess.org"] 1. d4 d5 2. Nf3 Nc6 { D02 Queen's Pawn Game: Chigorin Variation } 3. c4 dxc4 4. e4 e6?! { (0.50 → 1.63) Inaccuracy. Bg4 was best. } (4... Bg4 5. d5 Ne5 6. Bf4 Ng6 7. Be3 Nf6 8. Nc3 e5 9. Bxc4) 5. Bxc4 Nf6 6. Nc3 Bb4 7. e5?! { (0.97 → 0.25) Inaccuracy. Bd3 was best. } (7. Bd3 Ba5 8. O-O Bb6 9. Be3 O-O 10. e5 Nd5 11. Bc2 Nxe3) 7... Bxc3+? { (0.25 → 1.67) Mistake. Nd5 was best. } (7... Nd5 8. Bd2 Nb6 9. Bb5 a6 10. Bxc6+ bxc6 11. Ne4 a5 12. O-O) 8. bxc3 Nd5 9. Bb2?! { (1.69 → 0.97) Inaccuracy. Ng5 was best. } (9. Ng5) 9... Na5 10. Bd3 f6?? { (0.85 → 3.18) Blunder. Nf4 was best. } (10... Nf4) 11. O-O fxe5? { (2.84 → 5.07) Mistake. Nf4 was best. } (11... Nf4 12. exf6) 12. Nxe5 O-O 13. Qh5 h6 14. Qg6 Nf6 15. Bc1 Qe8 16. Qg3 Nc6 17. Bxh6 Rf7 18. Nxf7 Qxf7 19. Bg6 Qf8 20. Be3 Ne7 21. Bd3 Nh5 22. Qg5 Qf7 23. Be2 Nf6 24. h4?! { (6.33 → 4.85) Inaccuracy. Bd3 was best. } (24. Bd3 b6) 24... g6?! { (4.85 → 6.90) Inaccuracy. Ne4 was best. } (24... Ne4) 25. Bd3 e5 26. dxe5 Nfd5 27. Bd2 Qg7 28. h5 gxh5 29. Qxh5 Bf5 30. Bc4 Bg4 31. Qh4 Kf8 32. Bh6 Kg8 33. Bxg7 Kxg7 34. Qg5+ Ng6 35. Qxg4 Rf8 36. Bxd5 c6?! { (19.86 → Mate in 6) Checkmate is now unavoidable. Rf4 was best. } (36... Rf4 37. Qd7+ Kh6 38. Bxb7 c6 39. e6 Rf6 40. e7 Nxe7 41. Qxe7 Kg6 42. Qxf6+ Kxf6 43. Bxc6) 37. Qd7+?! { (Mate in 6 → 20.94) Lost forced checkmate sequence. Be4 was best. } (37. Be4 Rf5 38. Rfd1 Rxe5 39. Qxg6+ Kf8 40. Qf6+ Kg8 41. Rd8+ Re8 42. Rxe8#) 37... Rf7?! { (20.94 → Mate in 5) Checkmate is now unavoidable. Kh8 was best. } (37... Kh8 38. Be4 Rg8 39. Qf5 Rg7 40. Qh5+ Kg8 41. Qxg6 Rxg6 42. Bxg6 b6 43. a4 Kf8 44. f4) 38. Qe6?! { (Mate in 5 → 14.67) Lost forced checkmate sequence. Qxf7+ was best. } (38. Qxf7+ Kh6 39. Be4 Nxe5 40. Qf6+ Kh5 41. f4 Kg4 42. Qg5#) 38... Kh6?! { (14.67 → Mate in 6) Checkmate is now unavoidable. cxd5 was best. } (38... cxd5 39. Qxd5 Nf4 40. Qe4 a6 41. e6 Nxe6 42. Qxe6 Rf6 43. Qe7+ Rf7 44. Qxf7+ Kxf7 45. Kh2) 39. Qg4?! { (Mate in 6 → 16.56) Lost forced checkmate sequence. Be4 was best. } (39. Be4 Rg7 40. f4 Kh7 41. Kf2 Kh8 42. Rh1+ Nh4 43. Rxh4+ Rh7 44. Rxh7#) 39... Kg7?! { (16.56 → Mate in 7) Checkmate is now unavoidable. cxd5 was best. } (39... cxd5 40. e6) 40. Qe6?! { (Mate in 7 → 14.55) Lost forced checkmate sequence. Be4 was best. } (40. Be4 Kf8 41. Qxg6 Rd7 42. Qf6+ Rf7 43. Bg6 Rxf6 44. exf6 b5 45. Rae1 c5 46. Re8#) 40... Kh6?! { (14.55 → Mate in 6) Checkmate is now unavoidable. cxd5 was best. } (40... cxd5 41. Qxd5 Ne7 42. Qxb7 Ng6 43. Qe4 Rf4 44. Qe3 Kf8 45. Qxa7 Rf7 46. Qe3 Ke8 47. Qe4) 41. Qxf7?! { (Mate in 6 → 51.20) Lost forced checkmate sequence. Be4 was best. } (41. Be4 Rg7 42. Qh3+ Kg5 43. g3 Rf7 44. f4+ Rxf4 45. Rxf4 Nxf4 46. Qh4#) 41... Kh5?! { (51.20 → Mate in 3) Checkmate is now unavoidable. cxd5 was best. } (41... cxd5 42. Qxd5) 42. Qf6 Kh6 43. Qf8+?! { (Mate in 3 → 16.08) Lost forced checkmate sequence. Bf7 was best. } (43. Bf7 Kh5 44. Qxg6+ Kh4 45. Qg3#) 43... Kh5?! { (16.08 → Mate in 5) Checkmate is now unavoidable. Nxf8 was best. } { Black wins on time. } (43... Nxf8 44. Bc4 Nd7 45. f4 Kg6 46. e6 Nf6 47. Bd3+ Kh6 48. c4 Kg7 49. f5 Nh7 50. Rab1) 0-1