CohenChessClub.com

[Event " MrCohenOS Arena"] [Site "https://cohenchessclub.com/PB7AGoEB"] [Date "2026.10.07"] [White "Leo3"] [Black "Samuel"] [Result "0-1"] [UTCDate "2026.10.07"] [UTCTime "14:17:57"] [WhiteElo "1203"] [BlackElo "1433"] [WhiteRatingDiff "-12"] [BlackRatingDiff "+9"] [Variant "Standard"] [TimeControl "420+2"] [ECO "A00"] [Opening "Anderssen's Opening"] [Termination "Normal"] [Annotator "cohenchessclub.com"] 1. a3 { A00 Anderssen's Opening } d5 2. a4? { (0.08 → -1.15) Mistake. d4 was best. } (2. d4) 2... c6?! { (-1.15 → -0.26) Inaccuracy. e5 was best. } (2... e5 3. d3 Nc6 4. g3 f5 5. Bg2 Nf6 6. Nf3 Bd6 7. O-O e4 8. dxe4 fxe4 9. Nd4) 3. a5?! { (-0.26 → -0.99) Inaccuracy. d4 was best. } (3. d4 Nf6 4. Nf3 e6 5. Bf4 c5 6. e3 Nc6 7. Nbd2 Qb6 8. Bb5 Nh5 9. Bg5 a6) 3... b6? { (-0.99 → 0.13) Mistake. e5 was best. } (3... e5 4. d3) 4. axb6 axb6?? { (0.18 → 7.63) Blunder. Qxb6 was best. } (4... Qxb6 5. e3 Nf6 6. Nf3 c5 7. Be2 e6 8. Nc3 Nc6 9. O-O Bd6 10. d4 cxd4 11. Nb5) 5. Rxa8 Ba6 6. Rxb8 Qxb8 7. h3 d4 8. h4 g6 9. h5 gxh5 10. Rxh5 f6 11. Rxh7?? { (9.39 → -1.73) Blunder. e3 was best. } (11. e3) 11... Rxh7 12. g3?? { (-1.59 → -5.39) Blunder. d3 was best. } (12. d3 Rh1 13. Nf3 Kf7 14. Nxd4 Qh2 15. Nd2 Bh6 16. c3 Qxg2 17. Qb3+ Kg7 18. Nf5+ Kh8) 12... Qa8?? { (-5.39 → -1.62) Blunder. Rh1 was best. } (12... Rh1) 13. g4?? { (-1.62 → -5.69) Blunder. Bg2 was best. } (13. Bg2 e5 14. c3 Rh2 15. Kf1 d3 16. Qb3 Rxg2 17. Kxg2 dxe2 18. Nxe2 c5+ 19. Kg1 Qe4) 13... c5 14. g5?! { (-4.69 → -7.40) Inaccuracy. d3 was best. } (14. d3) 14... fxg5?! { (-7.40 → -5.51) Inaccuracy. Rh1 was best. } (14... Rh1 15. d3) 15. f4?! { (-5.51 → -10.17) Inaccuracy. d3 was best. } (15. d3 Rh1) 15... gxf4 16. e3 fxe3 17. dxe3 dxe3 18. c3 Bxf1 19. Kxf1 Rh1 20. Bxe3 Rh5?? { (-7.88 → 6.12) Blunder. Bh6 was best. } (20... Bh6) 21. Bxc5?? { (6.12 → -8.30) Blunder. Qxh5+ was best. } (21. Qxh5+ Kd7) 21... Rxc5 22. b4 Rh5?? { (-58.31 → 4.84) Blunder. Rf5+ was best. } (22... Rf5+ 23. Ke1) 23. Nh3?? { (4.84 → Mate in 11) Checkmate is now unavoidable. Qxh5+ was best. } (23. Qxh5+ Kd8 24. Qf7 Qe4 25. Qxf8+ Kc7 26. Nd2 Qe3 27. Qxg8 Qxc3 28. Ngf3 Qxb4 29. Ke1 b5) 23... Rxh3?! { (Mate in 11 → -14.19) Lost forced checkmate sequence. Qh1+ was best. } (23... Qh1+ 24. Ke2 Re5+ 25. Kd2 Rd5+ 26. Kc2 Qxd1+ 27. Kb2 Bh6 28. Ng5 Rxg5 29. Nd2 Qxd2+ 30. Kb3) 24. Kg1?! { (-14.19 → Mate in 4) Checkmate is now unavoidable. Qg4 was best. } (24. Qg4 Rh1+) 24... Rxc3?? { (Mate in 4 → -6.00) Lost forced checkmate sequence. Rg3+ was best. } (24... Rg3+ 25. Kf1 Qh1+ 26. Kf2 Qh2+ 27. Ke1 Rg1#) 25. Kf2?! { (-6.00 → -17.81) Inaccuracy. Qh5+ was best. } (25. Qh5+ Kd8) 25... Ra3?! { (-17.81 → -5.90) Inaccuracy. Qa2+ was best. } (25... Qa2+) 26. Ke2?? { (-5.90 → Mate in 3) Checkmate is now unavoidable. Qh5+ was best. } (26. Qh5+ Kd8) 26... Ra1?! { (Mate in 3 → -17.76) Lost forced checkmate sequence. Qg2+ was best. } (26... Qg2+ 27. Ke1 Re3+ 28. Qe2 Qxe2#) 27. Kd2 Rxb1 28. Qxb1 e5 29. Qg6+ Kd7 30. Qxg8?? { (-7.00 → Mate in 12) Checkmate is now unavoidable. Qxb6 was best. } (30. Qxb6 Bd6) 30... e4?? { (Mate in 12 → -5.78) Lost forced checkmate sequence. Bxb4+ was best. } (30... Bxb4+ 31. Ke3 Qxg8 32. Kd3 Qe8 33. Ke4 Ba5 34. Kf3 e4+ 35. Ke3 Bb4 36. Kd4 e3 37. Kd5) 31. Ke2 Qa1?? { (-6.62 → -1.37) Blunder. Qa6+ was best. } (31... Qa6+ 32. Kf2) 32. Qxf8 Qb1? { (-1.16 → -0.06) Mistake. Qa6+ was best. } (32... Qa6+) 33. Qc5?? { (-0.06 → Mate in 10) Checkmate is now unavoidable. Qf7+ was best. } (33. Qf7+ Kd6 34. Qf6+ Kd5 35. Qxb6 Qd3+ 36. Ke1 Kc4 37. Qc5+ Kb3 38. b5 e3 39. Qc1 Qe4) 33... Qa1?? { (Mate in 10 → 0.00) Lost forced checkmate sequence. bxc5 was best. } (33... bxc5 34. bxc5 Qd3+ 35. Kf2 Qd2+ 36. Kg3 e3 37. Kg4 e2 38. c6+ Kxc6 39. Kf3 e1=Q 40. Kg4) 34. Qxb6 Qa2+ 35. Ke1 e3 36. Kd1?? { (0.00 → Mate in 1) Checkmate is now unavoidable. Qd4+ was best. } (36. Qd4+ Kc7 37. Qc5+ Kb8 38. Qe5+ Kc8 39. Qf5+ Kb8) 36... e2+?? { (Mate in 1 → 0.00) Lost forced checkmate sequence. Qd2# was best. } (36... Qd2#) 37. Kc1?? { (0.00 → Mate in 1) Checkmate is now unavoidable. Ke1 was best. } (37. Ke1 Qc4 38. Kd2 e1=Q+ 39. Kxe1 Qc1+ 40. Ke2 Qc2+ 41. Ke3 Qc1+ 42. Kd3 Qb1+ 43. Kd2 Qb2+) 37... e1=Q# { Black wins by checkmate. } 0-1