CohenChessClub.com

[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/8y3Eln88"] [Date "2023.02.25"] [White "Anderson2"] [Black "Sebastian"] [Result "0-1"] [UTCDate "2023.02.25"] [UTCTime "18:32:33"] [WhiteElo "1127"] [BlackElo "1411"] [WhiteRatingDiff "-11"] [BlackRatingDiff "+5"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A40"] [Opening "Mikenas Defense"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. d4 Nc6?! { (0.32 → 0.92) Inaccuracy. Nf6 was best. } { A40 Mikenas Defense } (1... Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2) 2. b4?? { (0.92 → -0.77) Blunder. d5 was best. } (2. d5) 2... e5 3. dxe5 Nxe5 4. Bf4?? { (-0.68 → -2.53) Blunder. Qd4 was best. } (4. Qd4 Qe7 5. Nc3 Nc6 6. Qd2 Nxb4 7. a3 Na6 8. e4 Nc5 9. Nge2 Nf6 10. f3 b6) 4... Qe7? { (-2.53 → -1.03) Mistake. Qf6 was best. } (4... Qf6 5. Bxe5 Bxb4+ 6. c3 Qxe5 7. Qc2 Bc5 8. e3 Qe7 9. Nf3 Nf6 10. Bd3 O-O 11. O-O) 5. c3 Nc4?? { (-1.29 → 0.31) Blunder. d6 was best. } (5... d6 6. a4 a5 7. e3 g6 8. b5 Bg7 9. Ne2 b6 10. Nd4 Bb7 11. Nd2 f5 12. h4) 6. Qc2 g5 7. Bg3 Bh6?! { (-0.26 → 0.72) Inaccuracy. d5 was best. } (7... d5) 8. Nf3 g4?! { (0.42 → 1.14) Inaccuracy. d5 was best. } (8... d5 9. e3 Nd6 10. Bd3 Nf6 11. Nbd2 O-O 12. Nd4 Bg7 13. Bxd6 Qxd6 14. O-O Re8 15. Rac1) 9. Nd4 c5?? { (1.18 → 4.69) Blunder. d6 was best. } (9... d6 10. e3) 10. bxc5? { (4.69 → 2.42) Mistake. Nf5 was best. } (10. Nf5) 10... Qxc5 11. Nf5?! { (2.47 → 1.34) Inaccuracy. e4 was best. } (11. e4 Ne5 12. Qa4 Bf8 13. Nd2 a6 14. h3 Nf6 15. hxg4 Qxc3 16. Rd1 Nexg4 17. Be2 Bc5) 11... Bd2+?? { (1.34 → 10.37) Blunder. d5 was best. } (11... d5 12. e3 Bxf5 13. Qxf5 Bg7 14. Qxg4 Bf6 15. Bxc4 h5 16. Qf3 Qxc4 17. Nd2 Qxc3 18. Rd1) 12. Kd1?? { (10.37 → 0.92) Blunder. Nxd2 was best. } (12. Nxd2) 12... Na3?? { (0.92 → 9.91) Blunder. Bg5 was best. } (12... Bg5) 13. Nxa3 Qxa3 14. Qxd2 d6 15. Nxd6+ Kd8 16. Nxf7+ Ke8 17. Nxh8 Nh6 18. Ng6 Nf5 19. e4 hxg6 20. exf5 Bxf5 21. Bb5+ Kf8 22. Re1 a6?! { (21.19 → Mate in 7) Checkmate is now unavoidable. Kg8 was best. } (22... Kg8 23. Bd6) 23. Bc4?! { (Mate in 7 → 19.07) Lost forced checkmate sequence. Qh6+ was best. } (23. Qh6+ Kf7 24. Bc4+ Be6 25. Bxe6+ Ke8 26. Qxg6+ Kd8 27. Qg8+ Ke7 28. Bxg4+ Kf6 29. Bh4#) 23... b5?! { (19.07 → Mate in 1) Checkmate is now unavoidable. Qa4+ was best. } (23... Qa4+ 24. Bb3 Qd7 25. Qxd7 Bxd7 26. Bd6+ Kg7 27. Re7+ Kh6 28. Rxd7 Kg5 29. Bd5 a5 30. Bxb7) 24. Bd5?! { (Mate in 1 → 19.62) Lost forced checkmate sequence. Qh6# was best. } (24. Qh6#) 24... Rd8?! { (19.62 → Mate in 1) Checkmate is now unavoidable. Kg7 was best. } (24... Kg7 25. Qd4+) 25. Re5?! { (Mate in 1 → 15.00) Lost forced checkmate sequence. Qh6# was best. } (25. Qh6#) 25... Qc5?! { (15.00 → Mate in 1) Checkmate is now unavoidable. Rxd5 was best. } (25... Rxd5 26. Qxd5 a5 27. Rxf5+ gxf5 28. Qxf5+ Ke7 29. Bh4+ Ke8 30. Qxb5+ Kf8 31. Kc2 g3 32. hxg3) 26. h4?! { (Mate in 1 → 14.63) Lost forced checkmate sequence. Qh6# was best. } (26. Qh6#) 26... Kg7 27. Bf4 g5 28. Bxg5 a5?! { (18.76 → Mate in 7) Checkmate is now unavoidable. Rxd5 was best. } (28... Rxd5 29. Rxd5) 29. Bxd8 Qxd5 30. Bxa5? { (Mate in 5 → 8.32) Lost forced checkmate sequence. Qxd5 was best. } (30. Qxd5 Bg6 31. Qd7+ Kg8 32. Rg5 Kf8 33. Rxg6 b4 34. Qe7#) 30... Qxe5 31. Qd5?? { (8.27 → -8.40) Blunder. Bb6 was best. } (31. Bb6 Qe7 32. Qf4 Qe4 33. Bd4+ Kf8 34. Qg5 Ke8 35. Kd2 Kd7 36. Rd1 Kc8 37. Qg8+ Kb7) 31... Qxd5+ 32. Ke2 Qd3+ 33. Ke1 Qc2 34. Bd8?? { (-6.80 → Mate in 3) Checkmate is now unavoidable. Rd1 was best. } (34. Rd1) 34... Qb2?? { (Mate in 3 → -6.54) Lost forced checkmate sequence. Bd3 was best. } (34... Bd3 35. Bf6+ Kh7 36. Bd4 Qe2#) 35. Kd1?? { (-6.54 → Mate in 4) Checkmate is now unavoidable. Rd1 was best. } (35. Rd1 g3 36. Bb6 Qxc3+ 37. Kf1 Qc2 38. Re1 Bd3+ 39. Kg1 Be4 40. a4 Qd2 41. Ra1 bxa4) 35... Qxa1+? { (Mate in 4 → -9.54) Lost forced checkmate sequence. Qc2+ was best. } (35... Qc2+ 36. Ke1 Bd3 37. Bf6+ Kh7 38. Bd4 Qe2#) 36. Kd2 Qxa2+ 37. Ke3 Qa8?! { (Mate in 11 → -10.07) Lost forced checkmate sequence. Qe6+ was best. } (37... Qe6+ 38. Kd4 Qd6+ 39. Ke3 Qe5+ 40. Kd2 Qd5+ 41. Ke1 Qe4+ 42. Kf1 Qb1+ 43. Ke2 Qd3+ 44. Ke1) 38. Kf4?! { (-10.07 → Mate in 7) Checkmate is now unavoidable. Kd4 was best. } (38. Kd4 Qxd8+) 38... Qxd8?! { (Mate in 7 → -68.85) Lost forced checkmate sequence. Qe4+ was best. } (38... Qe4+ 39. Kg5 Be6 40. h5 g3 41. h6+ Kf7 42. f3 Qe5+ 43. Kh4 Kg6 44. Be7 Qf4#) 39. Kxf5 Qd5+ 40. Kxg4?! { (-73.21 → Mate in 14) Checkmate is now unavoidable. Kf4 was best. } (40. Kf4 Qxg2) 40... Kg6?! { (Mate in 14 → -60.01) Lost forced checkmate sequence. Qxg2+ was best. } (40... Qxg2+ 41. Kf5 Qxf2+ 42. Kg4 Kf6 43. h5 Qf5+ 44. Kh4 Qg5+ 45. Kh3 Qxh5+ 46. Kg2 Qc5 47. c4) 41. h5+ Qxh5+ 42. Kg3 Qg5+ 43. Kh2 Qf4+ 44. g3 Qd2 45. Kg2 Qxc3 46. f4 b4 47. Kh3 b3 48. f5+ Kxf5 49. Kh4 b2 50. g4+ Ke4 51. g5 b1=Q 52. g6 Qb5 53. g7 Qxg7 54. Kh3 Kd3 55. Kh4 Qd4+ 56. Kh3 Qb3 57. Kg3 Kc4+ 58. Kg2 Qd2+ 59. Kf1 Qb1# { Black wins by checkmate. } 0-1