[Event "Grand Prix Gryf Szczecin 5 Arena"] [Site "https://lichess.org/KKCFbvQ3"] [Date "2020.03.20"] [White "O5ka"] [Black "tomek1609"] [Result "0-1"] [UTCDate "2020.03.20"] [UTCTime "17:09:01"] [WhiteElo "2177"] [BlackElo "2196"] [WhiteRatingDiff "-6"] [BlackRatingDiff "+6"] [Variant "Standard"] [TimeControl "300+3"] [ECO "A43"] [Opening "Benoni Defense: Old Benoni"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 c5 { A43 Benoni Defense: Old Benoni } 2. Nf3?! { (0.79 → -0.25) Inaccuracy. d5 was best. } (2. d5 Nf6 3. Nc3 d6 4. e4 e6 5. Bc4 exd5 6. Bxd5 a6) 2... cxd4 3. Nxd4 Nf6 4. c4 e5 5. Nb5 d6 6. Bg5 Be6 7. e3 Qb6 8. Bxf6 gxf6 9. a4 f5 10. a5 Qc5 11. N1c3?! { (0.62 → -0.41) Inaccuracy. Be2 was best. } (11. Be2) 11... a6 12. Na3 Qxa5 13. Nb5 Qb6 14. Be2 Nd7 15. Nd5? { (-0.96 → -2.42) Mistake. O-O was best. } (15. O-O Nf6 16. Na3 Rc8 17. Nd5 Bxd5 18. cxd5 Be7 19. Qa4+ Kf8 20. Nc4 Qc5 21. b4 Qc7) 15... Bxd5 16. cxd5 Rc8 17. Nc3?! { (-2.54 → -3.46) Inaccuracy. Qb1 was best. } (17. Qb1) 17... Qxb2 18. Na4 Qb4+ 19. Kf1? { (-3.20 → -5.31) Mistake. Qd2 was best. } (19. Qd2) 19... b5 20. Rc1?! { (-5.35 → -7.79) Inaccuracy. g3 was best. } (20. g3 Bg7 21. Ra2 bxa4 22. Qxa4 Rc1+ 23. Kg2 Qxa4 24. Rxa4 Rxh1 25. Kxh1 Nc5 26. Ra2 Ke7) 20... Rxc1 21. Qxc1 bxa4 22. Qc8+ Ke7 23. Bxa6 Qb1+ 24. Ke2 Qxh1 25. Bb5 Nc5 26. Qe8+ Kf6 27. Qd8+ Kg6 28. h4 Qxg2 29. Be8 Ne4 30. h5+?! { (-29.03 → Mate in 10) Checkmate is now unavoidable. Qb6 was best. } (30. Qb6 Qxf2+ 31. Kd3 Qf1+ 32. Kc2 Qe2+ 33. Kb1 Nc3+ 34. Kc1 Qd1+ 35. Kb2 Qd2+ 36. Ka3 Qa2+) 30... Kh6 31. Qh4 a3 32. Bxf7 a2 33. Bg6 a1=Q 34. Bxf5 Qe1+?! { (Mate in 1 → -11.61) Lost forced checkmate sequence. Qaf1# was best. } (34... Qaf1#) 35. Kd3?! { (-11.61 → Mate in 2) Checkmate is now unavoidable. Kxe1 was best. } (35. Kxe1 Qg1+ 36. Ke2 Nc3+ 37. Kd3 Nxd5 38. Ke2 Qg5 39. Qxg5+ Kxg5 40. Bd3 Kxh5 41. Kd2 Be7) 35... Qb1+ 36. Kc4 Qgf1# { Black wins by checkmate. } 0-1