CohenChessClub.com

[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/6BOUW5f1"] [Date "2025.03.05"] [White "Ioana"] [Black "Bobby"] [Result "0-1"] [UTCDate "2025.03.05"] [UTCTime "21:11:41"] [WhiteElo "814"] [BlackElo "1111"] [WhiteRatingDiff "-4"] [BlackRatingDiff "+4"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B06"] [Opening "Modern Defense"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 g6 { B06 Modern Defense } 2. Nf3 Nh6?! { (0.62 → 1.47) Inaccuracy. c5 was best. } (2... c5 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6 6. c4 Qd8 7. d5 e6 8. Nc3 Bg7 9. Be2) 3. Bc4 Bg7 4. O-O O-O 5. Re1 c6 6. b4?? { (0.86 → -5.37) Blunder. Nc3 was best. } (6. Nc3 d5) 6... Qc7?? { (-5.37 → 0.77) Blunder. d5 was best. } (6... d5 7. exd5) 7. d4 Ng4 8. h3 Qh2+?? { (2.10 → 11.82) Blunder. Nf6 was best. } (8... Nf6 9. e5 Nd5 10. Bb3 d6 11. c4 Nxb4 12. exd6 exd6 13. Bf4 c5 14. Nc3 Qd8 15. Nb5) 9. Kf1?? { (11.82 → 2.16) Blunder. Nxh2 was best. } (9. Nxh2 Nxh2 10. Kxh2 Na6 11. c3 Nc7 12. Nd2 d5 13. exd5 Nxd5 14. Bxd5 cxd5 15. Rxe7 Bf6) 9... Qf4?? { (2.16 → 12.61) Blunder. Qh1+ was best. } (9... Qh1+) 10. hxg4 Qc7 11. Ne5?! { (6.06 → 4.65) Inaccuracy. Be2 was best. } (11. Be2 d5) 11... d6 12. Nxg6?? { (4.91 → 0.68) Blunder. Nxf7 was best. } (12. Nxf7 Rxf7 13. Bxf7+ Kxf7 14. Qf3+ Kg8 15. Qb3+ Kf8 16. Nd2 Bxd4 17. c3 Bg7 18. Nf3 Bxg4) 12... hxg6 13. g5? { (0.64 → -0.66) Mistake. c3 was best. } (13. c3) 13... d5?! { (-0.66 → 0.12) Inaccuracy. d5 was best. } (13... d5 14. exd5) 14. exd5 cxd5 15. Bxd5 Qd6?? { (0.00 → 1.62) Blunder. Qh2 was best. } (15... Qh2 16. Be4 Nc6 17. c3 Qh1+ 18. Ke2 Bg4+ 19. Kd3 Ne5+ 20. Ke3 Qh4 21. Rh1 Nc4+ 22. Kd3) 16. c4?? { (1.62 → -3.06) Blunder. Qf3 was best. } (16. Qf3 Bg4 17. Qxg4 Qxd5 18. c3 a5 19. b5 Qxb5+ 20. Kg1 e5 21. Be3 exd4 22. cxd4 Nc6) 16... b5?? { (-3.06 → 5.91) Blunder. e6 was best. } (16... e6 17. Nc3 exd5 18. Nxd5 Be6 19. Bf4 Qd7 20. Nf6+ Bxf6 21. gxf6 Bxc4+ 22. Kg1 Qf5 23. Bd6) 17. cxb5?? { (5.91 → -4.71) Blunder. Bxa8 was best. } (17. Bxa8) 17... Qxd5 18. f4? { (-4.65 → -8.40) Mistake. a4 was best. } (18. a4 Bb7) 18... Qc4+ 19. Kg1 Bxd4+?! { (-8.46 → -5.51) Inaccuracy. Qxd4+ was best. } (19... Qxd4+ 20. Qxd4 Bxd4+ 21. Kh2 Be6 22. Nc3 Bxc3 23. Be3 Nd7 24. a3 Nb6 25. Rac1 Bb2 26. Rc2) 20. Kh1?! { (-5.51 → -8.92) Inaccuracy. Be3 was best. } (20. Be3 Bxa1 21. Nd2 Qd5 22. Qxa1 Bb7 23. Nf3 Nd7 24. a4 e5 25. fxe5 Rfe8 26. Qd1 Nxe5) 20... Qd5? { (-8.92 → -4.11) Mistake. Bxa1 was best. } { Black offers draw } (20... Bxa1 21. Qf3 Kg7 22. Kh2 Rh8+ 23. Kg3 Bf5 24. Bd2 Nd7 25. Na3 Qxa2 26. Bc3+ Bxc3) 21. Rf1? { (-4.11 → -10.10) Mistake. Nc3 was best. } (21. Nc3 Qd8) 21... Qxa2?? { (-10.10 → 8.61) Blunder. Kg7 was best. } (21... Kg7 22. Kh2) 22. Nd2?? { (8.61 → -10.11) Blunder. Rxa2 was best. } (22. Rxa2 e5) 22... Qxa1?! { (-10.11 → -6.35) Inaccuracy. Kg7 was best. } (22... Kg7 23. Nf3) 23. Kh2?! { (-6.35 → -10.01) Inaccuracy. Nb3 was best. } (23. Nb3 Qc3) 23... Qxc1?? { (-10.01 → -2.22) Blunder. Bb7 was best. } (23... Bb7 24. Nb3) 24. Kg3?? { (-2.22 → -15.07) Blunder. Qxc1 was best. } (24. Qxc1) 24... Qxd1 25. Kh4?! { (-15.44 → Mate in 1) Checkmate is now unavoidable. Rxd1 was best. } (25. Rxd1 Rd8) 25... Qxf1 26. Kg3 Qd3+ 27. Nf3 Qxb5?! { (Mate in 6 → -78.91) Lost forced checkmate sequence. Bb6 was best. } (27... Bb6 28. Kh2 Qf1 29. Kg3 Bf2+ 30. Kh2 Kg7 31. b6 Rh8+ 32. Nh4 Rxh4#) 28. Kh4?! { (-78.91 → Mate in 3) Checkmate is now unavoidable. Nxd4 was best. } (28. Nxd4) 28... Qxb4 29. Kg3 Qe1+?! { (Mate in 6 → -23.50) Lost forced checkmate sequence. Be3 was best. } (29... Be3 30. Kh2 Qxf4+ 31. Kh1 Rd8 32. Ng1 Rd1 33. g3 Rxg1+ 34. Kh2 Qxg3#) 30. Kh2 Qe6 31. Kg3 Qe2 32. Kh4 Qb2 33. Kg3 Qc1 34. Kh2 Qc4 35. Kg3 Qf1 36. Kh2 Qa1 37. Kg3 Qc3 38. Kh2 Qd2 39. Kg3?! { (-25.27 → Mate in 4) Checkmate is now unavoidable. Nxd2 was best. } (39. Nxd2 Be3 40. Nf3 Bxf4+ 41. g3 Be3 42. Ne5 Bxg5 43. Nf3 Bf6 44. Nd2 Bb7 45. Nc4 Nd7) 39... Qb2 40. Kh2 Qd2?! { (Mate in 6 → -25.30) Lost forced checkmate sequence. Be3 was best. } (40... Be3 41. f5 gxf5 42. Nh4 Bf4+ 43. Kg1 Qd4+ 44. Kf1 Ba6+ 45. Ke1 Bg3#) 41. Kg3?! { (-25.30 → Mate in 4) Checkmate is now unavoidable. Nxd2 was best. } (41. Nxd2 Be3 42. Nc4 Bxf4+ 43. Kg1 Nd7 44. Na3 Bxg5 45. Kf2 a6 46. Nc2 Bb7 47. Kg3 a5) 41... Qb4 42. Nxd4 Qb2 43. Nc6 Qd2 44. Nxe7+ Kg7 45. f5 Qa2 46. fxg6 Qd2 47. gxf7 Qa2 48. Nf5+ Kg6 49. Nh4+ Kh5 50. Nf3 Qa3 51. Kh2 Rxf7 52. g6 Rf4 53. Ne1 Re4 54. g7 Qb3 55. g8=Q Qxg8 56. Nc2 Re2 57. Na1 Qxg2# { Black wins by checkmate. } 0-1