CohenChessClub.com

[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/CzjXq0Jn"] [Date "2025.04.16"] [White "Ioana"] [Black "Bobby"] [Result "0-1"] [UTCDate "2025.04.16"] [UTCTime "20:17:18"] [WhiteElo "839"] [BlackElo "1030"] [WhiteRatingDiff "-7"] [BlackRatingDiff "+6"] [Variant "Standard"] [TimeControl "420+2"] [ECO "B00"] [Opening "Owen Defense"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. e4 b6?! { (0.33 → 1.04) Inaccuracy. c5 was best. } { B00 Owen Defense } (1... c5 2. Nf3 d6 3. Nc3 e5 4. Bc4 Be7 5. d3 Nc6 6. O-O h6 7. Nd5 Nf6 8. Nxf6+) 2. Bc4?! { (1.04 → 0.22) Inaccuracy. d4 was best. } (2. d4) 2... Na6?? { (0.22 → 2.28) Blunder. Bb7 was best. } (2... Bb7 3. Nf3 e6 4. Qe2 c5 5. d4 cxd4 6. Nxd4 a6 7. Bd3 d6 8. Be3 Nd7 9. c4) 3. Bb3?? { (2.28 → -0.19) Blunder. Qe2 was best. } (3. Qe2 Nb4) 3... Bb7 4. f3 d5?! { (-0.23 → 0.59) Inaccuracy. Nc5 was best. } (4... Nc5 5. Nc3) 5. exd5?! { (0.59 → -0.17) Inaccuracy. d4 was best. } (5. d4 e6 6. Nc3 Be7 7. e5 c5 8. Nce2 cxd4 9. Ba4+ Kf8 10. Nxd4 Nc5 11. c3 Qc7) 5... Qd6?? { (-0.17 → 1.64) Blunder. Nc5 was best. } (5... Nc5 6. c4 Nxb3 7. Qxb3 c6 8. dxc6 Bxc6 9. Qc3 e6 10. d4 b5 11. Ne2 bxc4 12. Qxc4) 6. Nh3? { (1.64 → 0.39) Mistake. Ba4+ was best. } (6. Ba4+) 6... O-O-O?! { (0.39 → 1.18) Inaccuracy. Nc5 was best. } (6... Nc5 7. Bc4) 7. Rf1?? { (1.18 → -0.74) Blunder. d4 was best. } (7. d4 Nb4) 7... Kb8 8. d4 Rc8? { (0.37 → 1.89) Mistake. Nb4 was best. } (8... Nb4 9. Nc3) 9. f4?? { (1.89 → 0.09) Blunder. Bf4 was best. } (9. Bf4 Qd7) 9... Qd8? { (0.09 → 1.58) Mistake. Nb4 was best. } (9... Nb4 10. Ng5) 10. f5 c5?? { (1.42 → 4.46) Blunder. e6 was best. } (10... e6 11. dxe6) 11. dxc5?? { (4.46 → 1.08) Blunder. dxc6 was best. } (11. dxc6 Rxc6 12. Bf4+ Ka8 13. Nc3 e6 14. Ng5 Nh6 15. fxe6 Bb4 16. exf7 Rf6 17. Qd2 Nxf7) 11... bxc5?? { (1.08 → 4.11) Blunder. Nxc5 was best. } (11... Nxc5 12. Nc3 Nf6 13. Qe2 e6 14. fxe6 Ba6 15. Bf4+ Bd6 16. Nb5 Bxb5 17. Qxb5 fxe6 18. O-O-O) 12. a4?? { (4.11 → -0.87) Blunder. Ng5 was best. } (12. Ng5 Nh6) 12... e6 13. fxe6 fxe6?? { (-0.62 → 1.22) Blunder. c4 was best. } (13... c4) 14. dxe6 c4?? { (1.29 → 4.51) Blunder. Qxd1+ was best. } (14... Qxd1+ 15. Kxd1) 15. Bxc4?? { (4.51 → -4.38) Blunder. Qxd8 was best. } (15. Qxd8) 15... Bb4+?? { (-4.38 → -0.81) Blunder. Qh4+ was best. } (15... Qh4+ 16. Rf2) 16. Ke2?? { (-0.81 → -2.80) Blunder. c3 was best. } (16. c3) 16... Qxd1+ 17. Kxd1 Nf6?? { (-2.87 → 2.08) Blunder. Rxc4 was best. } (17... Rxc4) 18. Nf4?? { (2.08 → -5.12) Blunder. Bf4+ was best. } (18. Bf4+ Ka8 19. Bb5 Nc7 20. Ng5 Bxg2 21. Rf2 Bb7 22. Bxc7 Rxc7 23. c3 Be7 24. Nf7 Rf8) 18... Ne4?? { (-5.12 → 3.50) Blunder. Rxc4 was best. } (18... Rxc4) 19. Re1?? { (3.50 → -4.34) Blunder. Bb5 was best. } (19. Bb5) 19... Rcd8+?? { (-4.34 → 0.45) Blunder. Rxc4 was best. } (19... Rxc4 20. c3 Bd6 21. Be3 Re8 22. Na3 Rxa4 23. Bxa7+ Kc8 24. g3 Nc7 25. Bd4 g5 26. Nd3) 20. Ke2?! { (0.45 → -0.43) Inaccuracy. Nd3 was best. } (20. Nd3 Nf2+ 21. Ke2 Nxd3 22. cxd3 Bxe1 23. Kxe1 Nc5 24. Be3 Nxe6 25. Nc3 Rhe8 26. Kd2 Bxg2) 20... Rc8?? { (-0.43 → 1.46) Blunder. Bxe1 was best. } (20... Bxe1 21. Kxe1) 21. Rf1?? { (1.46 → -4.97) Blunder. c3 was best. } (21. c3) 21... Rxc4 22. Ke3?! { (-4.64 → -7.90) Inaccuracy. c3 was best. } (22. c3 Bd6 23. Be3 Nc7 24. Kd3 Nc5+ 25. Kxc4 Ba6+ 26. Kb4 N5xe6+ 27. Kb3 Bxf1 28. Na3 Bxf4) 22... Re8 23. g4 Nd2?? { (-9.25 → -3.14) Blunder. Rxc2 was best. } (23... Rxc2 24. Nc3 Bc5+ 25. Kd3 Nb4+ 26. Kc4 Ba6+ 27. Kb3) 24. Bxd2 g5?? { (-3.41 → -1.42) Blunder. Re4+ was best. } (24... Re4+ 25. Kf2) 25. Ng2?? { (-1.42 → -7.47) Blunder. Kd3 was best. } (25. Kd3 Rxf4) 25... Rxe6+ 26. Kd3?? { (-6.84 → Mate in 3) Checkmate is now unavoidable. Kf2 was best. } (26. Kf2) 26... Rxg4?? { (Mate in 3 → -6.48) Lost forced checkmate sequence. Rd4+ was best. } (26... Rd4+ 27. Kxd4 Re4+ 28. Kd3 Nc5#) 27. Bxg5?? { (-6.48 → Mate in 1) Checkmate is now unavoidable. Ne3 was best. } (27. Ne3 Nc5+) 27... Rxg2? { (Mate in 1 → -7.31) Lost forced checkmate sequence. Nc5# was best. } (27... Nc5#) 28. Rd1? { (-7.31 → Mate in 5) Checkmate is now unavoidable. Bf4+ was best. } (28. Bf4+ Kc8 29. Nc3 Nc5+ 30. Kc4 a5 31. Rg1 Rf2 32. Rg8+ Kd7 33. Rd1+ Kc6 34. Rd6+ Rxd6) 28... Rxg5?! { (Mate in 5 → -10.20) Lost forced checkmate sequence. Nc5+ was best. } (28... Nc5+ 29. Kc4 Rg4+ 30. Bf4+ Rxf4+ 31. Rd4 Rxd4+ 32. Kxd4 Re4#) 29. Re1?! { (-10.20 → Mate in 4) Checkmate is now unavoidable. Kc4 was best. } (29. Kc4 Rb6 30. c3 Ba5 31. Rd4 Rc6+ 32. Kb3 Nc5+ 33. Ka3) 29... Ree5? { (Mate in 4 → -8.94) Lost forced checkmate sequence. Nc5+ was best. } (29... Nc5+ 30. Kc4 Rg4+ 31. Re4 Rgxe4+ 32. Kb5 Ba6#) 30. Rxe5 Rxe5 31. Kd4? { (-9.17 → Mate in 2) Checkmate is now unavoidable. c3 was best. } (31. c3 Bf8) 31... Bd6? { (Mate in 2 → -9.38) Lost forced checkmate sequence. Re4+ was best. } (31... Re4+ 32. Kd3 Nc5#) 32. Kc3 Nc5 33. Nd2 Re3+ 34. Kc4 Ba6+ 35. Kd5 Kc7 36. Nb1? { (-9.10 → Mate in 2) Checkmate is now unavoidable. Nc4 was best. } (36. Nc4 Bb7+) 36... Re5+?! { (Mate in 2 → -57.77) Lost forced checkmate sequence. Re4 was best. } (36... Re4 37. b3 Bb7#) 37. Kd4 Bb7 38. c3? { (-7.83 → Mate in 1) Checkmate is now unavoidable. Nc3 was best. } (38. Nc3) 38... Rd5+?! { (Mate in 1 → -11.00) Lost forced checkmate sequence. Re4# was best. } (38... Re4#) 39. Kc4 Kc6 40. Kb4 Nd3+ 41. Kc4 Ba6+ 42. Kb3 Kc5 43. Ka3 Kc4+ 44. Ka2?! { (-15.37 → Mate in 1) Checkmate is now unavoidable. b4 was best. } (44. b4 Bf4) 44... Ra5? { (Mate in 1 → -7.50) Lost forced checkmate sequence. Nc1# was best. } (44... Nc1#) 45. b4? { (-7.50 → Mate in 7) Checkmate is now unavoidable. Na3+ was best. } (45. Na3+ Bxa3) 45... Rxa4+ 46. Na3+ Kd5? { (Mate in 6 → -7.84) Lost forced checkmate sequence. Kxc3 was best. } (46... Kxc3 47. Rd1 Bc4+ 48. Kb1 Rxa3 49. Rd2 Kxd2 50. h3 Ba2+ 51. Ka1 Be5#) 47. Rd1 Rxa3+ 48. Kxa3 Bc4 49. Ka4 Be5 50. Ka5?! { (-6.47 → -61.02) Inaccuracy. Rg1 was best. } (50. Rg1) 50... Bxc3 51. Ka4 Bxb4 52. Rxd3+ Bxd3 53. Kxb4 Ke4 54. Kc3 a6 55. Kb4 Kf3 56. Kc3 Ke4 57. Kd2 Bb5 58. Kc3 Kd5 59. Kb3 Kc5 60. Ka3 a5 61. Kb3 a4+ 62. Kc3 Bc4 63. Kb2 Kb4 64. Kc2 a3 65. Kd2 a2 66. Kd1 a1=Q+ 67. Kd2 Qc3+ 68. Kd1 Bb3+ 69. Ke2 Kc4 70. Kf2 Kd4 71. Kg2 Bc4 72. Kf2 Ke4 73. Kg2 Kf4 74. Kf2 Qf3+ 75. Kg1 Qf1# { Black wins by checkmate. } 0-1