[Event "Round 7: Kyle Dong - Kevin Wang"] [Site "https://lichess.org/study/0t8KugIj/7KKqaItc"] [White "Kyle Dong"] [Black "Kevin Wang"] [Result "1-0"] [Annotator "https://lichess.org/@/ciego"] [Variant "Standard"] [ECO "A16"] [Opening "English Opening: Anglo-Indian Defense, Queen's Knight Variation"] [UTCDate "2022.12.12"] [UTCTime "14:48:09"] [Source "https://lichess.org/study/D59ifJA3/IZb8vW77"] [Orientation "white"] 1. c4 { [%eval 0.23] [%clk 1:30:00] } 1... Nf6 { [%eval 0.29] [%clk 1:30:00] } 2. Nc3 { [%eval 0.08] [%clk 1:30:00] } 2... g6 { [%eval 0.51] [%clk 1:29:58] } 3. g3 { [%eval 0.3] [%clk 1:30:00] } 3... Bg7 { [%eval 0.42] [%clk 1:29:53] } 4. Bg2 { [%eval 0.19] [%clk 1:30:00] } 4... O-O { [%eval 0.21] [%clk 1:29:53] } 5. e4 { [%eval 0.0] [%clk 1:30:00] } 5... d6 { [%eval 0.0] [%clk 1:29:53] } 6. d3 { [%eval -0.14] [%clk 1:30:00] } 6... e5 { [%eval 0.45] [%clk 1:29:52] } 7. Nge2 { [%eval 0.16] [%clk 1:30:00] } 7... Nc6 { [%eval 0.47] [%clk 1:29:25] } 8. O-O { [%eval 0.36] [%clk 1:30:00] } 8... Bd7 { [%eval 0.51] [%clk 1:22:01] } 9. h3 { [%eval 0.61] [%clk 1:29:40] } 9... a6 { [%eval 0.76] [%clk 1:17:51] } 10. a4 { [%eval 0.62] [%clk 1:29:28] } 10... h6 { [%eval 0.74] [%clk 1:10:42] } 11. Be3 { [%eval 0.82] [%clk 1:29:07] } 11... Qe7 { [%eval 0.84] [%clk 1:02:48] } 12. Qd2 { [%eval 0.84] [%clk 1:27:55] } 12... Kh7 { [%eval 0.95] [%clk 1:02:37] } 13. Rab1 { [%eval 0.54] [%clk 1:25:00] } 13... Nb4 { [%eval 0.57] [%clk 0:53:24] } 14. b3 { [%eval 0.43] [%clk 1:19:22] } 14... c5 { [%eval 0.42] [%clk 0:52:57] } 15. f4 { [%eval 0.46] [%clk 1:18:10] } 15... Nc6?! { [%eval 1.14] [%clk 0:50:03] } (15... exf4! { With chances of kingside expansion and a lurking b3-b4 break, Black does not want to risk keeping the center closed. } 16. gxf4 Rae8 { Now, a ...d6-d5 sacrifice is in the air, and any committal decisions from White will result in weaknesses that Black might actually be able to exploit with some open and semi-open lines. }) 16. f5 { [%eval 0.94] [%clk 1:14:29] } 16... Nd4 { [%eval 1.12] [%clk 0:49:24] } 17. g4 { [%eval 1.14] [%clk 1:11:21] } 17... Ng8?! { [%eval 2.08] [%clk 0:38:01] } (17... b5 { Counterplay! Asking White what the actual follow-up is. } 18. g5 hxg5 19. Bxg5 Qe8 { White must be careful here to make sure Black does not activate on the queenside. } 20. b4! { This should do the trick, but is not an easy move to anticipate or commit to. }) 18. Nd5 { [%eval 2.09] [%clk 1:08:48] } 18... Qd8 { [%eval 1.88] [%clk 0:37:32] } 19. Nxd4?! { [%eval 0.87] [%clk 1:07:07] } (19. g5 Nxe2+ { Perhaps White did not want to lose a pawn here } 20. Qxe2 hxg5 21. f6 Bh6 22. Qd2 { but the coffin for Black's g8-knight is clearly worth it. }) 19... cxd4 { [%eval 0.77] [%clk 0:34:10] } 20. Bf2 { [%eval 0.86] [%clk 1:07:07] } 20... g5?! { [%eval 1.86] [%clk 0:32:12] } 21. a5! { [%eval 1.72] } { A very astute, measured decision. White does not need to force a mate on the kingside. Unless, of course, Black finds activity with ...b7-b5 once the kingside fully locks down. } { [%clk 0:58:40] } 21... f6 { [%eval 1.89] [%clk 0:30:54] } 22. Nb6 { [%eval 2.09] [%clk 0:57:31] } 22... Rb8 { [%eval 2.19] [%clk 0:30:54] } 23. b4 { [%eval 2.05] } { The strategic point: Black's pieces lack life because of concessions made to stop a pawn storm. This would be fine if White's pieces were similarly frozen. But they won't be for long! } { [%clk 0:57:17] } 23... Ne7 { [%eval 1.95] [%clk 0:30:15] } 24. Rfc1 { [%eval 2.3] [%clk 0:55:40] } 24... Nc8 { [%eval 2.16] [%clk 0:29:41] } 25. Nxd7 { [%eval 1.83] [%clk 0:51:30] } 25... Qxd7 { [%eval 2.02] [%clk 0:29:41] } 26. Bf3 { [%eval 1.99] [%clk 0:51:28] } 26... Ne7 { [%eval 2.2] [%clk 0:28:31] } 27. Bd1 { [%eval 2.07] [%clk 0:51:28] } 27... Rfc8 { [%eval 2.2] [%clk 0:25:16] } 28. Be1 { [%eval 2.18] [%clk 0:50:15] } 28... Bf8 { [%eval 2.18] [%clk 0:24:09] } 29. Kg2 { [%eval 2.08] [%clk 0:49:40] } 29... Ng8 { [%eval 2.35] [%clk 0:23:34] } 30. Ra1 { [%eval 1.77] [%clk 0:48:09] } 30... Qg7 { [%eval 2.3] [%clk 0:22:46] } 31. Bg3 { [%eval 2.18] [%clk 0:47:51] } 31... Be7 { [%eval 2.26] [%clk 0:22:09] } 32. Bb3 { [%eval 2.08] [%clk 0:47:46] } 32... Qf8 { [%eval 2.31] [%clk 0:20:56] } 33. Ra4 { [%eval 2.22] [%clk 0:45:45] } 33... Qe8 { [%eval 2.29] [%clk 0:20:50] } 34. Rh1 { [%eval 2.06] [%clk 0:45:17] } 34... Kg7 { [%eval 1.93] [%clk 0:20:42] } 35. Raa1 { [%eval 1.96] [%clk 0:43:30] } 35... Bf8 { [%eval 2.68] [%clk 0:19:56] } 36. h4 { [%eval 2.78] [%clk 0:42:14] } 36... Qd8 { [%eval 4.05] [%clk 0:19:11] } 37. hxg5 { [%eval 3.79] [%clk 0:41:35] } 37... fxg5 { [%eval 3.48] [%clk 0:19:10] } 38. Raf1 { [%eval 2.65] [%clk 0:38:07] } 38... Qf6 { [%eval 2.39] [%clk 0:18:53] } 39. Qa2 { [%eval 2.39] [%clk 0:36:41] } 39... Be7 { [%eval 2.89] [%clk 0:16:36] } 40. Re1 { [%eval 2.72] [%clk 0:33:38] } 40... Rc7 { [%eval 3.24] [%clk 0:16:31] } 41. Rh3 { [%eval 2.79] [%clk 0:31:46] } 41... Rf8 { [%eval 3.85] [%clk 0:16:31] } 42. Reh1 { [%eval 3.74] [%clk 0:30:34] } 42... Rd8 { [%eval 5.54] [%clk 0:16:24] } 43. c5! { [%eval 5.52] } { White did not play this move before it clearly worked. It clearly works. } { [%clk 0:30:04] } 43... Rcc8 { [%eval 6.42] [%clk 0:16:18] } 44. Bxg8 { [%eval 6.41] [%clk 0:30:00] } 44... Rxg8 { [%eval 7.28] [%clk 0:16:13] } 45. Rxh6 { [%eval 7.66] [%clk 0:30:00] } 45... Qxh6 { [%eval 6.51] [%clk 0:16:13] } 46. Rxh6 { [%eval 6.48] [%clk 0:30:00] } 46... Kxh6 { [%eval 6.79] [%clk 0:16:13] } 47. Qe6+ { [%eval 6.59] [%clk 0:30:00] } 47... Kh7 { [%eval 6.51] [%clk 0:16:00] } 48. Qxe7+ { [%eval 6.63] [%clk 0:30:00] } 48... Rg7 { [%eval 6.72] [%clk 0:16:00] } 49. Qxd6 { [%eval 6.56] [%clk 0:30:00] } 49... Re8 { [%eval 8.75] [%clk 0:15:37] } 50. Bxe5 { [%eval 10.08] [%clk 0:30:00] } 50... Rgg8 { [%eval #4] [%clk 0:15:37] } 51. f6 { [%eval 14.42] [%clk 0:29:43] } 51... Ref8 { [%eval #6] [%clk 0:15:37] } 52. Qd7+ { [%eval #6] [%clk 0:29:40] } 52... Kg6 { [%eval #5] [%clk 0:15:34] } 53. Qf5+ { [%eval #7] [%clk 0:29:40] } 53... Kh6 { [%eval 20.96] [%clk 0:15:34] } 54. f7 { [%eval #6] [%clk 0:29:40] } 54... Rg6 { [%eval #7] [%clk 0:15:34] } 55. Qd7 { [%eval #5] [%clk 0:29:08] } 55... b5 { [%eval #5] [%clk 0:15:32] } 56. Bd6 { [%eval #12] [%clk 0:29:08] } 56... Rxd6 { [%eval #21] [%clk 0:15:13] } 57. Qxd6+ { [%eval 17.93] [%clk 0:29:08] } 57... Kg7 { [%eval 34.48] [%clk 0:15:13] } 58. Qxf8+ { [%eval #11] [%clk 0:29:08] } 58... Kxf8 { [%eval #13] [%clk 0:15:08] } 59. c6 { [%eval #11] [%clk 0:29:08] } 59... Kxf7 { [%eval #9] [%clk 0:15:08] } 60. c7 { [%eval #11] [%clk 0:29:08] } 60... Ke7 { [%eval #8] [%clk 0:15:08] } 61. c8=Q { [%eval #9] [%clk 0:29:04] } 61... Kd6 { [%eval #5] [%clk 0:15:01] } 62. Qc5+ { [%eval #14] [%clk 0:29:04] } 62... Ke6 { [%eval #10] [%clk 0:14:58] } 63. Qxd4 { [%eval #8] [%clk 0:28:55] } 63... Kf7 { [%eval #8] [%clk 0:14:58] } 64. Qd6 { [%eval #7] [%clk 0:28:55] } 64... Kg8 { [%eval #6] [%clk 0:14:58] } 65. Qe7 { [%eval #5] [%clk 0:28:55] } 65... Kh8 { [%eval #5] [%clk 0:14:58] } 66. d4 { [%eval #4] [%clk 0:28:55] } 66... Kg8 { [%eval #4] [%clk 0:14:55] } 67. d5 { [%eval #3] [%clk 0:28:55] } 67... Kh8 { [%eval #3] [%clk 0:14:54] } 68. d6 { [%eval #2] [%clk 0:28:55] } 1-0