[Event "15th COTS 2024 Intl. Tourn."] [Site "https://lichess.org/6ORk6J8e"] [Date "2024.05.05"] [White "greennight"] [Black "Planes_18"] [Result "1-0"] [UTCDate "2024.05.05"] [UTCTime "12:41:53"] [WhiteElo "2439"] [BlackElo "2239"] [WhiteRatingDiff "+6"] [BlackRatingDiff "-3"] [WhiteTitle "IM"] [Variant "Standard"] [TimeControl "600+0"] [ECO "B28"] [Opening "Sicilian Defense: O'Kelly Variation, Venice System, Steiner Line"] [Termination "Normal"] [Annotator "lichess.org"] 1. e4 c5 2. Nf3 a6 3. c3 d6 { B28 Sicilian Defense: O'Kelly Variation, Venice System, Steiner Line } 4. d4 cxd4 5. cxd4 Nf6 6. Nc3 g6 7. h3 Bg7 8. Bd3 O-O 9. Bg5 Nbd7 10. Qe2 e5 11. dxe5 dxe5 12. Rd1 Qc7 13. O-O h6 14. Be3 b5 15. Rc1 Qd8 16. Rfd1 Qe7 17. Qd2?! { (1.50 → 0.92) Inaccuracy. a4 was best. } (17. a4 b4 18. Nb1 Bb7 19. Nbd2 Rfb8 20. a5 Nh5 21. g3 Nhf6 22. Nh2 Rc8 23. Rxc8+ Bxc8) 17... Kh7 18. Ne2?! { (1.31 → 0.73) Inaccuracy. a4 was best. } (18. a4 b4 19. Ne2 Rd8 20. Ng3 a5 21. Bb5 Ba6 22. Bxa6 Rxa6 23. Qe2 Raa8 24. Rc6 Rdb8) 18... Bb7? { (0.73 → 1.93) Mistake. Rd8 was best. } (18... Rd8 19. Ng3 Ne8 20. h4 Bb7 21. a4 bxa4 22. h5 Rdc8 23. hxg6+ fxg6 24. Qa5 Bc6 25. Bc2) 19. Rc7 Rab8 20. Bc5?? { (2.50 → 0.00) Blunder. Ba7 was best. } (20. Ba7 Qd6 21. Bxb8 Rxb8 22. Rcc1 Bf8 23. Bb1 Qe6 24. Ng3 Kg7 25. a3 b4 26. axb4 Ba8) 20... Qd8 21. Bxf8 Qxc7 22. Bxg7 Kxg7 23. Ng3 Nc5 24. Rc1 Rd8? { (-0.02 → 1.31) Mistake. Qd6 was best. } (24... Qd6 25. Bxb5 Qxd2 26. Nxd2 Ncxe4 27. Ndxe4 axb5 28. Nxf6 Kxf6 29. Rc5 Bc8 30. b4 Bd7 31. Ne4+) 25. Qe3? { (1.31 → 0.02) Mistake. b4 was best. } (25. b4 Qd7 26. bxc5 Qxd3 27. Qxd3 Rxd3 28. c6 Bc8 29. Nxe5 Rd2 30. c7 Rxa2 31. Nc6 Nd7) 25... Qd6 26. Qxc5 Qxc5 27. Rxc5 Rxd3 28. Nxe5 Rd1+ 29. Kh2 Bxe4 30. Nxe4 Nxe4 31. Rc7 Nd6? { (0.03 → 1.26) Mistake. Kf6 was best. } (31... Kf6) 32. Rd7 Rd2 33. Nxf7 Nc4 34. Ra7? { (1.21 → 0.02) Mistake. Rxd2 was best. } (34. Rxd2 Nxd2 35. Nd6 Kf6 36. Kg3 Ke6 37. Ne8 Kd7 38. Nf6+ Ke6 39. Ng4 h5 40. Ne3 Ne4+) 34... Rxb2 35. Ne5+ Kf6 36. Ng4+ Kg5?? { (0.18 → 3.16) Blunder. Kf5 was best. } (36... Kf5) 37. Rxa6?? { (3.16 → 0.07) Blunder. Rf7 was best. } (37. Rf7) 37... h5 38. Ne3 Rxf2 39. Kg3 Rb2 40. h4+ Kh6 41. Nf5+ Kh7 42. Ra7+ Kh8 43. Nd4 Ne3 44. Kf4 Nxg2+ 45. Kg5 Nxh4 46. Kxh4 Rb4?? { (0.43 → 2.95) Blunder. Kg8 was best. } { Black offers draw } (46... Kg8 47. Kg5 Rg2+ 48. Kh6 Kf8 49. Ne6+ Ke8 50. Nf4 Rf2 51. Nxg6 h4 52. Nxh4 b4 53. Ng6) 47. Rd7 Ra4?? { (2.93 → 6.12) Blunder. Rb2 was best. } (47... Rb2 48. Kg5 Rd2 49. Kxg6 Rg2+ 50. Kh6 Kg8 51. Ne6 Rg1 52. Kxh5 Rg3 53. Rb7 b4 54. Rxb4) 48. Kg5 Rxa2?? { (5.14 → Mate in 39) Checkmate is now unavoidable. Ra6 was best. } (48... Ra6 49. Re7 Kg8 50. Ne6 Rxe6 51. Rxe6 Kf7 52. Re3 h4 53. a4 bxa4 54. Kxh4 Kf6 55. Kg4) 49. Kh6 Kg8 50. Ne6 Ra6 51. Rg7+ Kh8 52. Ng5 Rf6 53. Nf7+ Rxf7 54. Rxf7 Kg8 55. Kxg6 h4 56. Rb7?? { (Mate in 17 → 5.03) Lost forced checkmate sequence. Rf3 was best. } (56. Rf3 b4 57. Kf6 Kf8 58. Re3 b3 59. Rxb3 Ke8 60. Rd3 h3 61. Rd1 h2 62. Ke6 Kf8) 56... h3?? { (5.03 → Mate in 1) Checkmate is now unavoidable. Kf8 was best. } (56... Kf8 57. Kf6 Ke8 58. Ke6 Kd8 59. Rd7+ Ke8 60. Re7+ Kd8 61. Kd6 b4 62. Re3 Kc8 63. Rb3) 57. Rb8# { White wins by checkmate. } 1-0