[Event "Kosteniuk"] [Site "https://lichess.org/8GN3yYqe"] [Date "2023.07.19"] [White "IamJval"] [Black "lionisback"] [Result "0-1"] [UTCDate "2023.07.19"] [UTCTime "14:12:17"] [WhiteElo "2325"] [BlackElo "2149"] [WhiteRatingDiff "-34"] [BlackRatingDiff "+29"] [Variant "Standard"] [TimeControl "300+0"] [ECO "D10"] [Opening "Slav Defense: Exchange Variation"] [Termination "Normal"] [Annotator "lichess.org"] 1. d4 d5 2. c4 c6 3. cxd5 { D10 Slav Defense: Exchange Variation } cxd5 4. Nc3 Nf6 5. Bf4 Nc6 6. e3 Bf5 7. Qb3 Na5 8. Qa4+ Bd7 9. Qc2 e6 10. Nf3 Be7 11. Bd3 O-O 12. O-O Rc8 13. Rac1 a6 14. Ne5 Nc4 15. b3? { (0.52 → -0.69) Mistake. Qe2 was best. } (15. Qe2) 15... Nd6? { (-0.69 → 0.55) Mistake. Nxe5 was best. } (15... Nxe5) 16. Nxd7 Qxd7 17. Qb1 b5 18. h3 Rc6 19. Ne2 Rfc8 20. Rxc6 Rxc6 21. Rc1 Nfe4? { (0.19 → 1.65) Mistake. h6 was best. } (21... h6 22. g4 Nb7 23. a4 Rxc1+ 24. Nxc1 Nd8 25. axb5 axb5 26. Kg2 Qc6 27. Qa1) 22. f3? { (1.65 → 0.38) Mistake. Bxd6 was best. } (22. Bxd6 Rxc1+) 22... Nf6 23. Be5 h6 24. Ng3 Qc7 25. Rxc6 Qxc6 26. Ne2 Nd7 27. Bg3 b4 28. Be1 a5 29. Qb2 Nb5 30. Ng3 Bh4 31. Bf2 Qc3 32. Qe2 Qa1+ 33. Nf1? { (-0.10 → -1.76) Mistake. Qe1 was best. } (33. Qe1 Qxe1+ 34. Bxe1 Nc3 35. Kf1 Nxa2 36. Ne2 Bxe1 37. Kxe1 Kf8 38. Kd2 Ke7) 33... Bxf2+ 34. Qxf2 Nc3 35. Qg3? { (-1.84 → -3.32) Mistake. Qc2 was best. } (35. Qc2 Nb6 36. g4 Qxa2 37. Qxa2 Nxa2 38. Bc2 Nc3 39. Kf2 Nc8 40. h4 Nd6) 35... Qd1 36. Ba6 Nxa2 37. Qc7 Nf8? { (-2.51 → -1.20) Mistake. Nf6 was best. } (37... Nf6 38. g4 a4 39. bxa4 b3 40. h4 Kh7 41. Qb8 Nc3 42. g5 Nh5 43. a5) 38. Qxa5?? { (-1.20 → -3.47) Blunder. Bb5 was best. } (38. Bb5 Nc3 39. Be8 Kh7 40. Qxf7 Ne2+ 41. Kf2 Qc2 42. h4 Nxd4+ 43. Kg1 Ne2+) 38... Qxb3 39. f4 Nc3 40. g4?! { (-3.61 → -4.53) Inaccuracy. Qc5 was best. } (40. Qc5 Qb1 41. Kh2 Ne4 42. Qe7 b3 43. Bb5 Nf6 44. Nd2 Qe1 45. Nf1 b2) 40... Qb1 41. Kf2 Nd1+ 42. Kg2 Qc2+ 43. Kh1 b3 44. f5 Nf2+ 45. Kg2 Nxg4+ 46. Kg3?? { (-5.95 → Mate in 4) Checkmate is now unavoidable. Kg1 was best. } (46. Kg1 Qf2+ 47. Kh1 Qf3+ 48. Kg1 Nxe3 49. Qd2 Nxf1 50. Qf2 Nd2 51. Qxf3 Nxf3+) 46... Nf6?? { (Mate in 4 → -6.07) Lost forced checkmate sequence. Qf2+ was best. } (46... Qf2+ 47. Kxg4 exf5+ 48. Kh5 Qf3+ 49. Kh4 Ng6#) 47. fxe6?? { (-6.07 → Mate in 4) Checkmate is now unavoidable. Nd2 was best. } (47. Nd2 b2 48. Qb4 exf5 49. h4 Qxd2 50. Qxd2 Ne4+ 51. Kg2 Nxd2 52. Bd3 Ne4) 47... fxe6?? { (Mate in 4 → -5.79) Lost forced checkmate sequence. Ne4+ was best. } (47... Ne4+ 48. Kg4 Qg2+ 49. Kf4 Nxe6+ 50. Kf5 Qg5#) 48. Qb4?? { (-5.79 → Mate in 4) Checkmate is now unavoidable. Nd2 was best. } (48. Nd2 b2 49. Qb4 b1=Q 50. Qxb1 Ne4+ 51. Nxe4 Qxb1 52. Nc5 Qg1+ 53. Kf3 Qh1+) 48... b2?? { (Mate in 4 → -6.14) Lost forced checkmate sequence. Ne4+ was best. } (48... Ne4+ 49. Kg4 Qg2+ 50. Ng3 Qxg3+ 51. Kh5 Qxh3#) 49. Nd2 Ne4+ 50. Nxe4 b1=Q 51. Qxb1 Qxb1 52. Nd6 Qg1+ { White resigns. } 0-1