[Event "Round 6: Singh Sahib - Kosakowski, Jakub"] [Site "https://lichess.org/study/cBgv88VK/B16l93nS"] [White "Singh Sahib"] [Black "Kosakowski, Jakub"] [Result "0-1"] [BlackElo "2482"] [BlackTitle "IM"] [BlackFideId "1185080"] [Variant "Standard"] [ECO "B90"] [Opening "Sicilian Defense: Najdorf Variation, English Attack"] [Annotator "https://lichess.org/broadcast/-/-/cBgv88VK"] [UTCDate "2024.04.29"] [UTCTime "13:45:35"] [Source "https://lichess.org/study/cBgv88VK/B16l93nS"] [Orientation "white"] 1. e4 { [%eval 0.16] [%clk 1:30:57] } 1... c5 { [%eval 0.34] [%clk 1:30:53] } 2. Nf3 { [%eval 0.27] [%clk 1:31:23] } 2... d6 { [%eval 0.27] [%clk 1:31:15] } 3. d4 { [%eval 0.31] [%clk 1:31:49] } 3... cxd4 { [%eval 0.31] [%clk 1:31:39] } 4. Nxd4 { [%eval 0.28] [%clk 1:32:15] } 4... Nf6 { [%eval 0.34] [%clk 1:32:03] } 5. Nc3 { [%eval 0.28] [%clk 1:32:41] } 5... a6 { [%eval 0.18] [%clk 1:32:24] } 6. Be3 { [%eval 0.22] [%clk 1:33:07] } 6... e5 { [%eval 0.25] [%clk 1:32:41] } 7. Nf3 { [%eval 0.28] [%clk 1:33:32] } 7... Be7 { [%eval 0.17] [%clk 1:32:45] } 8. Bc4 { [%eval 0.07] [%clk 1:33:58] } 8... O-O { [%eval 0.06] [%clk 1:33:02] } 9. O-O { [%eval 0.23] [%clk 1:34:21] } 9... Nc6 { [%eval 0.18] [%clk 1:33:18] } 10. Bb3 { [%eval 0.06] [%clk 1:34:16] } 10... h6 { [%eval 0.1] [%clk 1:33:21] } 11. h3 { [%eval -0.19] [%clk 1:33:40] } 11... Na5 { [%eval -0.21] [%clk 1:31:35] } 12. Bd5 { [%eval -0.19] [%clk 1:26:04] } 12... Be6 { [%eval -0.08] [%clk 1:28:36] } 13. b3 { [%eval -0.32] [%clk 1:21:32] } 13... Rc8 { [%eval -0.29] [%clk 1:23:01] } 14. Na4 { [%eval -0.42] [%clk 1:19:58] } 14... b5 { [%eval -0.42] [%clk 1:21:00] } 15. Bb6 { [%eval -0.4] [%clk 1:14:16] } 15... Qe8 { [%eval -0.46] [%clk 1:21:11] } 16. Bxa5 { [%eval -0.51] [%clk 1:09:31] } 16... bxa4 { [%eval -0.46] [%clk 1:21:19] } 17. c4 { [%eval -0.48] [%clk 1:08:08] } 17... Nxd5 { [%eval -0.45] [%clk 1:16:33] } 18. exd5 { [%eval -0.42] [%clk 1:05:55] } 18... Bd7 { [%eval -0.54] [%clk 1:12:24] } 19. Re1 { [%eval -0.54] [%clk 0:58:00] } 19... f5 { [%eval -0.54] [%clk 1:07:06] } 20. Rc1 { [%eval -0.53] [%clk 0:57:30] } 20... axb3 { [%eval -0.41] [%clk 1:06:49] } 21. axb3 { [%eval -0.42] [%clk 0:47:33] } 21... e4 { [%eval -0.22] [%clk 1:06:16] } 22. Nd4 { [%eval -0.19] [%clk 0:46:42] } 22... Qg6 { [%eval 0.19] [%clk 1:06:20] } 23. Nc6?? { [%eval -1.79] } { Blunder. f4 was best. } { [%clk 0:44:15] } (23. f4 exf3) 23... Bh4 { [%eval -1.75] [%clk 1:03:27] } 24. f4 { [%eval -1.85] [%clk 0:33:52] } 24... Bxc6 { [%eval -1.85] [%clk 1:01:17] } 25. dxc6 { [%eval -1.96] [%clk 0:34:18] } 25... Bxe1 { [%eval -1.87] [%clk 1:01:38] } 26. Qd5+ { [%eval -1.7] [%clk 0:34:42] } 26... Kh7 { [%eval -1.91] [%clk 1:01:43] } 27. Rxe1 { [%eval -1.81] [%clk 0:34:32] } 27... Qg3 { [%eval -1.74] [%clk 1:01:17] } 28. Rb1?! { [%eval -2.39] } { Inaccuracy. Re2 was best. } { [%clk 0:30:33] } (28. Re2 Qxf4 29. c7 Qc1+ 30. Kh2 Qf1 31. Re3 Qf2 32. Rg3 Qc5 33. Qe6 Rxc7 34. Qg6+ Kg8) 28... Qxf4 { [%eval -2.26] [%clk 0:53:57] } 29. b4? { [%eval -4.3] } { Mistake. c7 was best. } { [%clk 0:30:44] } (29. c7 Qe3+ 30. Kh1 Qf2 31. b4 e3 32. Rg1 Qc2 33. b5 axb5 34. cxb5 Rxc7 35. Bxc7 Qxc7) 29... Qe3+ { [%eval -4.32] [%clk 0:53:39] } 30. Kh2 { [%eval -4.26] [%clk 0:29:44] } 30... f4 { [%eval -4.1] [%clk 0:53:38] } 31. b5 { [%eval -4.29] [%clk 0:29:53] } 31... Qg3+ { [%eval -3.67] [%clk 0:47:36] } 32. Kg1?! { [%eval -5.21] } { Inaccuracy. Kh1 was best. } { [%clk 0:29:55] } (32. Kh1 f3 33. Qxe4+ Kh8 34. Qc2 axb5 35. cxb5 Rce8 36. Rf1 Qg5 37. Bc3 Qxb5 38. Rf2 Qf5) 32... f3 { [%eval -5.17] [%clk 0:47:35] } 33. Rb2 { [%eval -5.93] [%clk 0:26:55] } 33... f2+ { [%eval -5.67] [%clk 0:47:04] } 34. Kf1?? { [%eval #-16] } { Checkmate is now unavoidable. Rxf2 was best. } { [%clk 0:27:17] } (34. Rxf2 Qxf2+ 35. Kh2 Qf4+ 36. Kh1 axb5 37. cxb5 Rf5 38. Qc4 Qf1+ 39. Qxf1 Rxf1+ 40. Kh2 Rb1) 34... Qxg2+ { [%eval #-15] [%clk 0:47:29] } 35. Kxg2 { [%eval #-15] [%clk 0:27:42] } 35... f1=Q+ { [%eval #-14] [%clk 0:47:54] } 36. Kh2 { [%eval #-14] [%clk 0:28:06] } 36... Rf2+ { [%eval #-13] [%clk 0:48:19] } 37. Rxf2 { [%eval #-13] [%clk 0:28:28] } 37... Qxf2+ { [%eval #-12] [%clk 0:48:45] } 38. Kh1 { [%eval #-12] [%clk 0:28:53] } 38... Qf1+ { [%eval #-11] [%clk 0:49:05] } 39. Kh2 { [%eval #-11] [%clk 0:29:19] } 39... Qe2+ { [%eval #-10] [%clk 0:49:30] } 40. Kh1 { [%eval #-10] [%clk 0:59:14] } 40... Rf8 { [%eval #-9] [%clk 1:19:52] } 41. Bb6 { [%eval #-9] [%clk 0:59:39] } 41... Rf1+? { [%eval -7.38] } { Lost forced checkmate sequence. Rf3 was best. } { [%clk 1:18:26] } (41... Rf3 42. Qe6 Rf1+ 43. Bg1 Qf3+ 44. Kh2 Re1 45. Qf5+ Qxf5 46. Be3 Rxe3 47. Kg2 Qxh3+ 48. Kf2) 42. Bg1 { [%eval -7.25] [%clk 1:00:03] } 42... Qf3+ { [%eval -7.12] [%clk 1:18:47] } 43. Kh2 { [%eval -6.6] [%clk 1:00:30] } 43... Re1 { [%eval -6.32] [%clk 1:19:10] } 0-1