CohenChessClub.com

[Event "August Chess Megatournament"] [Site "https://cohenchessclub.com/1ibRgadN"] [Date "2023.08.13"] [White "Nikolai"] [Black "Matilda"] [Result "0-1"] [UTCDate "2023.08.13"] [UTCTime "20:07:51"] [WhiteElo "1118"] [BlackElo "1417"] [WhiteRatingDiff "-3"] [BlackRatingDiff "+2"] [BlackTitle "⛸"] [Variant "Standard"] [TimeControl "600+2"] [ECO "D02"] [Opening "Queen's Pawn Game: Chigorin Variation"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. d4 d5 2. Nf3 Nc6?! { (0.21 → 0.88) Inaccuracy. Nf6 was best. } { D02 Queen's Pawn Game: Chigorin Variation } (2... Nf6 3. c4 e6 4. Nc3 Be7 5. Bf4 O-O 6. e3 Nbd7 7. Be2) 3. Bf4 Bg4 4. h3?! { (0.64 → 0.00) Inaccuracy. c4 was best. } (4. c4 e6 5. e3 Bd6 6. Bxd6 Qxd6 7. Nbd2 Bxf3 8. Qxf3 Nf6 9. O-O-O O-O-O 10. g4 e5) 4... Bh5?! { (0.00 → 0.73) Inaccuracy. Bxf3 was best. } (4... Bxf3 5. gxf3) 5. g4 Bg6 6. Nc3?! { (0.69 → -0.29) Inaccuracy. c4 was best. } (6. c4 e6) 6... Nf6?! { (-0.29 → 0.62) Inaccuracy. e6 was best. } (6... e6 7. a3 Bd6 8. e3 a6 9. Bg2 h5 10. Qe2 hxg4 11. hxg4 Rxh1+ 12. Bxh1 Nf6 13. Ne5) 7. e3?! { (0.62 → -0.05) Inaccuracy. Ne5 was best. } (7. Ne5 e6 8. h4 Nxe5 9. dxe5 d4 10. Nb5 Nd5 11. Qxd4 Qd7 12. Nc3 Nxc3 13. Qxd7+ Kxd7) 7... e6 8. Be5?! { (-0.12 → -0.99) Inaccuracy. Bb5 was best. } (8. Bb5 a6 9. Bxc6+ bxc6 10. Ne5 Qb8 11. O-O Nd7 12. Nxd7 Kxd7 13. Na4 h5 14. g5 Bf5) 8... Be7 9. Be2?! { (-0.54 → -1.09) Inaccuracy. Bb5 was best. } (9. Bb5 a6) 9... O-O? { (-1.09 → 0.33) Mistake. Bb4 was best. } (9... Bb4 10. Bxf6) 10. O-O? { (0.33 → -0.82) Mistake. Bxf6 was best. } (10. Bxf6 Bxf6 11. h4 Nb4 12. h5 Bxc2 13. Qd2 a5 14. a3 Be4 15. Nxe4 dxe4 16. axb4 exf3) 10... Bd6 11. Bxd6 Qxd6 12. Ne5?? { (-0.67 → -2.68) Blunder. Nh4 was best. } (12. Nh4 Ne7 13. Nb5 Qc6 14. Nc3 a6 15. Bd3 Qd6 16. Ne2 c5 17. Nxg6 Nxg6 18. c3 e5) 12... Nxe5 13. dxe5 Qxe5 14. Qd4 Qd6 15. Bd3 Bxd3 16. Qxd3 Rae8 17. Qd4 e5 18. Qd1 e4 19. f3? { (-4.97 → -10.68) Mistake. g5 was best. } (19. g5 Re5) 19... exf3?! { (-10.68 → -5.65) Inaccuracy. Qg3+ was best. } (19... Qg3+ 20. Kh1) 20. Rxf3 c6 21. Rf1?! { (-5.52 → -15.91) Inaccuracy. Qd4 was best. } (21. Qd4 a6) 21... Qg3+ 22. Kh1 Qxh3+ 23. Kg1 Rxe3 24. Ne2?! { (-16.99 → Mate in 5) Checkmate is now unavoidable. Qe2 was best. } (24. Qe2 Nxg4) 24... Qxg4+ 25. Kf2 Rf3+?! { (Mate in 4 → -20.63) Lost forced checkmate sequence. Rfe8 was best. } (25... Rfe8 26. Rh1 Rxe2+ 27. Qxe2 Rxe2+ 28. Kf1 Qg2#) 26. Ke1 Rxf1+ 27. Kxf1 Ne4 28. Ke1?! { (-10.65 → Mate in 10) Checkmate is now unavoidable. Ng1 was best. } (28. Ng1 Qh4 29. Qf3 Rd8 30. Qg2 h6 31. Re1 Rd6 32. Nf3 Qf4 33. Qh3 Rg6) 28... Re8?! { (Mate in 10 → -16.00) Lost forced checkmate sequence. Qh4+ was best. } (28... Qh4+ 29. Ng3 Qxg3+ 30. Ke2 Qf2+ 31. Kd3 Nc5+ 32. Kc3 Qe3+ 33. Qd3 Ne4+ 34. Kb3 Qb6+ 35. Qb5) 29. Qd3?! { (-16.00 → Mate in 18) Checkmate is now unavoidable. Qd4 was best. } (29. Qd4 Qf3) 29... Qh4+ 30. Kd1 Qh1+ 31. Ng1 Qxg1+ 32. Ke2 Qf2+ 33. Kd1 Qg1+ 34. Ke2 Qxa1?! { (Mate in 5 → -18.19) Lost forced checkmate sequence. Qf2+ was best. } (34... Qf2+ 35. Kd1 Nc3+ 36. Qxc3 Re2 37. Qb4 Qf1+ 38. Qe1 Qxe1#) 35. Qd1?! { (-18.19 → Mate in 6) Checkmate is now unavoidable. a4 was best. } (35. a4 Qxb2) 35... Qxd1+?! { (Mate in 6 → -17.08) Lost forced checkmate sequence. Nd6+ was best. } (35... Nd6+ 36. Kd3 Qxd1+ 37. Kc3 Re3+ 38. Kb4 Qd4+ 39. Ka5 Qxb2 40. a3 Qxa3#) 36. Kxd1 h5 37. Ke2 h4 38. Kf1 h3 39. Kg1 g5 40. Kh2?! { (-21.76 → Mate in 6) Checkmate is now unavoidable. c3 was best. } (40. c3 g4) 40... g4 41. Kh1 g3 42. Kg1 h2+ 43. Kg2 f5?! { (Mate in 5 → -22.75) Lost forced checkmate sequence. Re5 was best. } (43... Re5 44. a3 Rf5 45. a4 Rf2+ 46. Kh3 h1=Q+ 47. Kg4 f5#) 44. a4?! { (-22.75 → Mate in 6) Checkmate is now unavoidable. c3 was best. } (44. c3 f4) 44... f4?! { (Mate in 6 → -33.80) Lost forced checkmate sequence. Kf7 was best. } (44... Kf7 45. a5 Rh8 46. Kf3 h1=Q+ 47. Ke3 Qe1+ 48. Kf4 Qf2+ 49. Ke5 Re8#) 45. b3?! { (-33.80 → Mate in 3) Checkmate is now unavoidable. Kf3 was best. } (45. Kf3 Rf8) 45... f3+ 46. Kh1 f2 47. Kg2 Nd2 48. c3 f1=Q+ 49. Kxg3 Re3+ 50. Kh4 Qf4+ 51. Kh5 Re5+ 52. Kg6 Qf6+ 53. Kxf6 Re4 54. Kf5 Re2 55. b4 h1=Q 56. Kf4 Qf1+ 57. Kg3 Rg2+ 58. Kh3 Qh1# { Black wins by checkmate. } 0-1