[Event "616th PRIZE CHESSATHON"] [Site "https://lichess.org/VcSoPLXA"] [Date "2021.11.09"] [White "pratirang115"] [Black "wedosgembel"] [Result "0-1"] [UTCDate "2021.11.09"] [UTCTime "19:32:59"] [WhiteElo "2014"] [BlackElo "2190"] [WhiteRatingDiff "-5"] [BlackRatingDiff "+8"] [Variant "Standard"] [TimeControl "600+5"] [ECO "D91"] [Opening "Grünfeld Defense: Three Knights Variation, Petrosian System"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 d5 2. Nf3 Nf6 3. c4 g6 4. Nc3?! { (0.90 → 0.22) Inaccuracy. cxd5 was best. } (4. cxd5 Bg7 5. Qa4+ c6 6. dxc6 Nxc6 7. Nc3 Bf5 8. g3 O-O) 4... Bg7 5. Bg5 { D91 Grünfeld Defense: Three Knights Variation, Petrosian System } Ne4 6. cxd5 Nxg5 7. Nxg5 e5 8. Nf3 exd4 9. Nxd4 O-O 10. e4?! { (0.71 → -0.03) Inaccuracy. e3 was best. } (10. e3 c6 11. Bc4 cxd5 12. Bxd5 Nc6 13. Bxc6 bxc6 14. O-O Ba6 15. Re1 Rc8 16. Qa4 Qb6) 10... c6 11. Bc4 Qb6 12. Nb3 Nd7?! { (-0.61 → 0.26) Inaccuracy. Qb4 was best. } (12... Qb4 13. Be2) 13. O-O Ne5 14. Na4?? { (0.52 → -6.98) Blunder. Be2 was best. } (14. Be2 a5 15. Qd2 a4 16. Nd4 cxd5 17. Nxd5 Qxd4 18. Qxd4 Nf3+ 19. gxf3 Bxd4 20. Rab1 Be6) 14... Qb4 15. dxc6 Nxc4 16. cxb7 Bxb7 17. Nac5 Rfd8 18. Qf3 Rac8 19. Nxb7 Qxb7 20. Rad1 Nxb2 21. Rxd8+ Rxd8 22. h3 Qa6 23. Nc5 Qxa2 24. Qb3 Qxb3 25. Nxb3 Rd3 26. Nc5 Rc3 27. Nd7 a5 28. e5 a4 29. Rb1 a3 30. Nf6+ Bxf6 31. exf6 a2 32. Rxb2? { (-8.28 → Mate in 6) Checkmate is now unavoidable. Re1 was best. } (32. Re1 Kf8 33. Ra1 Ra3 34. Kh2 Nd3 35. f3 Ke8 36. h4 Kd7 37. g4 Ke6 38. Kg3 Kxf6) 32... a1=Q+ 33. Rb1 Qxb1+ 34. Kh2 Qb8+ 35. g3 Rc2 36. Kg2 Qb7+ 37. Kf1 Qf3 38. Ke1 { White offers draw } 38... Qe2# { Black wins by checkmate. } 0-1