Event: Round 5: Iyengar, Ilya - Yoon, Jacob D
Date: 2025-05-28
White: Iyengar, Ilya
WhiteElo: 1979
Black: Yoon, Jacob D
BlackTitle: CM
BlackElo: 2250
Result: 0-1
ECO: A57
Opening: Benko Gambit Declined: Main Line
Variant: Standard

1. d4 { [%eval 0.17] [%clk 1:30:58] } 1... Nf6 { [%eval 0.19] [%clk 1:30:06] } 2. Nf3 { [%eval 0.11] [%clk 1:30:41] } 2... c5 { [%eval 0.39] [%clk 1:30:10] } 3. d5 { [%eval 0.37] [%clk 1:30:19] } 3... b5 { [%eval 0.4] [%clk 1:30:30] } 4. c4 { [%eval 0.41] [%clk 1:27:24] } 4... b4 { [%eval 0.34] [%clk 1:30:12] } 5. Bf4 { [%eval -0.12] [%clk 1:26:08] } 5... e6?! { [%eval 0.56] } { Inaccuracy. g6 was best. } { [%clk 1:24:56] } 6. Qc2 { [%eval 0.32] [%clk 1:13:39] } 6... exd5 { [%eval 0.7] [%clk 1:22:18] } 7. cxd5 { [%eval 0.72] [%clk 1:12:19] } 7... Bb7 { [%eval 0.84] [%clk 1:22:30] } 8. e4 { [%eval 1.4] [%clk 1:11:14] } 8... Qe7 { [%eval 1.42] [%clk 1:22:56] } 9. Be5 { [%eval 1.3] [%clk 0:51:18] } 9... Nxd5 { [%eval 1.35] [%clk 1:03:29] } 10. exd5 { [%eval 1.28] [%clk 0:48:29] } 10... Bxd5 { [%eval 1.27] [%clk 1:03:54] } 11. Qe2 { [%eval 1.26] [%clk 0:46:17] } 11... Bxf3 { [%eval 1.29] [%clk 1:04:18] } 12. gxf3 { [%eval 1.36] [%clk 0:46:36] } 12... Nc6 { [%eval 1.52] [%clk 1:04:44] } 13. Bg3 { [%eval 1.5] [%clk 0:44:43] } 13... Nd4 { [%eval 1.25] [%clk 1:04:44] } 14. Qxe7+ { [%eval 1.44] [%clk 0:44:10] } 14... Bxe7 { [%eval 1.31] [%clk 1:05:08] } 15. Kd1 { [%eval 1.42] [%clk 0:38:51] } 15... d5 { [%eval 1.69] [%clk 0:59:24] } 16. Nd2?! { [%eval 0.99] } { Inaccuracy. a3 was best. } { [%clk 0:32:41] } 16... O-O { [%eval 1.53] [%clk 0:59:00] } 17. Rc1?! { [%eval 0.47] } { Inaccuracy. b3 was best. } { [%clk 0:24:45] } 17... c4 { [%eval 0.6] [%clk 0:56:36] } 18. Rg1 { [%eval 0.29] [%clk 0:20:57] } 18... Nc6 { [%eval 0.63] [%clk 0:54:33] } 19. Bh3 { [%eval 0.39] [%clk 0:11:28] } 19... f5?! { [%eval 1.17] } { Inaccuracy. Bf6 was best. } { [%clk 0:53:50] } 20. Bf4? { [%eval -0.14] } { Mistake. Re1 was best. } { [%clk 0:10:31] } 20... g6? { [%eval 1.14] } { Mistake. Bf6 was best. } { [%clk 0:52:06] } 21. Re1? { [%eval -0.27] } { Mistake. Bh6 was best. } { [%clk 0:05:58] } 21... Kf7? { [%eval 1.17] } { Mistake. Bf6 was best. } { [%clk 0:47:11] } 22. Bf1?! { [%eval 0.42] } { Inaccuracy. Bh6 was best. } { [%clk 0:01:35] } 22... Rfd8 { [%eval 0.52] [%clk 0:47:03] } 23. Kc2?! { [%eval -0.03] } { Inaccuracy. Bh6 was best. } { [%clk 0:01:10] } 23... g5?! { [%eval 0.65] } { Inaccuracy. Bf6 was best. } { [%clk 0:36:07] } 24. Be5 { [%eval 0.16] [%clk 0:01:19] } 24... Rac8?! { [%eval 0.83] } { Inaccuracy. f4 was best. } { [%clk 0:25:11] } 25. f4?! { [%eval 0.13] } { Inaccuracy. Kb1 was best. } { [%clk 0:01:03] } 25... gxf4?? { [%eval 2.56] } { Blunder. g4 was best. } { [%clk 0:21:21] } 26. Bh3? { [%eval 0.8] } { Mistake. Kb1 was best. } { [%clk 0:01:06] } 26... Bf6 { [%eval 1.16] [%clk 0:21:06] } 27. Nf3 { [%eval 1.04] [%clk 0:00:48] } 27... Bxe5 { [%eval 1.05] [%clk 0:14:29] } 28. Nxe5+ { [%eval 0.84] [%clk 0:01:17] } 28... Kf6 { [%eval 1.05] [%clk 0:14:54] } 29. Nxc6 { [%eval 1.06] [%clk 0:00:50] } 29... Rxc6 { [%eval 0.87] [%clk 0:15:22] } 30. Bg2 { [%eval 0.95] [%clk 0:00:57] } 30... Rc5 { [%eval 0.66] [%clk 0:13:06] } 31. b3 { [%eval 0.72] [%clk 0:00:36] } 31... Ra5 { [%eval 0.57] [%clk 0:13:03] } 32. Ra1 { [%eval 0.41] [%clk 0:00:43] } 32... Ra3 { [%eval 0.65] [%clk 0:12:56] } 33. Kb2?! { [%eval -0.02] } { Inaccuracy. Red1 was best. } { [%clk 0:00:38] } 33... f3 { [%eval 0.14] [%clk 0:12:31] } 34. Bxf3 { [%eval 0.0] [%clk 0:00:50] } 34... d4? { [%eval 1.16] } { Mistake. a5 was best. } { [%clk 0:13:00] } 35. Be2? { [%eval -0.13] } { Mistake. Red1 was best. } { [%clk 0:00:32] } 35... d3 { [%eval -0.1] [%clk 0:13:20] } 36. Bf1?? { [%eval -6.32] } { Blunder. bxc4 was best. } { [%clk 0:00:38] } 36... c3+ { [%eval -6.4] [%clk 0:13:40] } 37. Kb1 { [%eval -6.33] [%clk 0:00:59] } 37... c2+ { [%eval -6.06] [%clk 0:11:49] } 38. Kb2 { [%eval -5.99] [%clk 0:00:57] } 38... d2 { [%eval -6.05] [%clk 0:12:17] } 39. Kxc2?? { [%eval #-8] } { Checkmate is now unavoidable. Be2 was best. } { [%clk 0:00:31] } 39... dxe1=N+?? { [%eval -6.97] } { Lost forced checkmate sequence. Rxa2+ was best. } { [%clk 0:12:36] } 40. Rxe1 { [%eval -6.76] [%clk 0:00:50] } 40... Rxa2+ { [%eval -6.29] [%clk 0:13:05] } 0-1