Event: Round 1: Iyengar, Ilya - Halpin, David
Date: 2025-03-01
White: Iyengar, Ilya
WhiteElo: 1926
Black: Halpin, David
BlackElo: 1484
Result: 1-0
ECO: E73
Opening: King's Indian Defense: Semi-Averbakh System
Variant: Standard
TimeControl: 15+10

1. d4 { [%eval 0.17] [%clk 0:15:13] } 1... g6 { [%eval 0.57] [%clk 0:15:18] } 2. e4 { [%eval 0.48] [%clk 0:14:54] } 2... Bg7 { [%eval 0.48] [%clk 0:15:16] } 3. c4 { [%eval 0.58] [%clk 0:14:57] } 3... d6 { [%eval 0.55] [%clk 0:15:02] } 4. Nc3 { [%eval 0.41] [%clk 0:14:46] } 4... Nf6 { [%eval 0.48] [%clk 0:14:48] } 5. Be2 { [%eval 0.51] [%clk 0:14:27] } 5... O-O { [%eval 0.48] [%clk 0:14:50] } 6. Be3 { [%eval 0.44] [%clk 0:14:24] } 6... b6 { [%eval 0.7] [%clk 0:14:10] } 7. h4 { [%eval 0.53] [%clk 0:12:35] } 7... h5 { [%eval 0.55] [%clk 0:13:41] } 8. f3 { [%eval 0.41] [%clk 0:12:32] } 8... Nbd7 { [%eval 0.83] [%clk 0:13:07] } 9. Qd2 { [%eval 0.8] [%clk 0:12:28] } 9... Kh7?! { [%eval 1.68] } { Inaccuracy. c5 was best. } { [%clk 0:13:02] } 10. Nh3 { [%eval 1.6] [%clk 0:12:14] } 10... Rh8?? { [%eval 4.61] } { Blunder. c5 was best. } { [%clk 0:11:42] } 11. O-O-O?? { [%eval 2.03] } { Blunder. Ng5+ was best. } { [%clk 0:10:33] } 11... e6?? { [%eval 4.37] } { Blunder. Nf8 was best. } { [%clk 0:11:45] } 12. Kb1? { [%eval 2.47] } { Mistake. e5 was best. } { [%clk 0:10:39] } 12... a6? { [%eval 4.45] } { Mistake. Qe7 was best. } { [%clk 0:10:52] } 13. g4? { [%eval 2.61] } { Mistake. e5 was best. } { [%clk 0:10:11] } 13... hxg4 { [%eval 3.28] [%clk 0:10:38] } 14. fxg4 { [%eval 3.37] [%clk 0:10:19] } 14... Bb7 { [%eval 3.36] [%clk 0:10:15] } 15. Qc2 { [%eval 2.68] [%clk 0:09:00] } 15... c5 { [%eval 2.87] [%clk 0:09:55] } 16. d5 { [%eval 2.8] [%clk 0:08:51] } 16... Ne5 { [%eval 3.18] [%clk 0:09:41] } 17. dxe6 { [%eval 3.14] [%clk 0:08:33] } 17... fxe6 { [%eval 3.13] [%clk 0:09:40] } 18. Ng5+ { [%eval 2.69] [%clk 0:08:40] } 18... Kg8 { [%eval 2.64] [%clk 0:09:24] } 19. Nxe6 { [%eval 2.85] [%clk 0:08:47] } 19... Qe7 { [%eval 2.66] [%clk 0:09:13] } 20. Nxg7 { [%eval 2.61] [%clk 0:08:08] } 20... Kxg7 { [%eval 2.61] [%clk 0:08:42] } 21. Bg5 { [%eval 2.42] [%clk 0:06:21] } 21... Qe6?! { [%eval 3.47] } { Inaccuracy. Raf8 was best. } { [%clk 0:08:02] } 22. h5?! { [%eval 2.08] } { Inaccuracy. Nd5 was best. } { [%clk 0:04:26] } 22... Nf7?! { [%eval 3.41] } { Inaccuracy. Nfxg4 was best. } { [%clk 0:07:45] } 23. Bf4 { [%eval 3.0] [%clk 0:01:06] } 23... Bxe4 { [%eval 3.01] [%clk 0:07:39] } 24. Nxe4 { [%eval 3.18] [%clk 0:00:57] } 24... Qxe4 { [%eval 2.9] [%clk 0:06:56] } 25. h6+ { [%eval 3.0] [%clk 0:00:54] } 25... Kh7?! { [%eval 4.32] } { Inaccuracy. Nxh6 was best. } { [%clk 0:07:21] } 26. Bxd6?? { [%eval 1.7] } { Blunder. Bd3 was best. } { [%clk 0:00:41] } 26... Qxc2+ { [%eval 1.68] [%clk 0:07:15] } 27. Kxc2 { [%eval 1.56] [%clk 0:00:50] } 27... Ne4? { [%eval 3.46] } { Mistake. Rhe8 was best. } { [%clk 0:06:18] } 28. Bc7 { [%eval 3.35] [%clk 0:00:34] } 28... Nf2? { [%eval 5.3] } { Mistake. Rae8 was best. } { [%clk 0:06:18] } 29. Rhf1 { [%eval 5.34] [%clk 0:00:27] } 29... Nxd1 { [%eval 5.25] [%clk 0:06:02] } 30. Rxf7+ { [%eval 5.15] [%clk 0:00:35] } 30... Kxh6 { [%eval 5.18] [%clk 0:06:01] } 31. Kxd1 { [%eval 4.59] [%clk 0:00:25] } 31... Raf8 { [%eval 5.3] [%clk 0:05:54] } 32. Rd7 { [%eval 5.17] [%clk 0:00:21] } 32... Rf2 { [%eval 5.4] [%clk 0:04:49] } 33. Bxb6 { [%eval 5.22] [%clk 0:00:25] } 33... Rhf8 { [%eval 6.67] [%clk 0:04:27] } 34. Bxc5 { [%eval 6.48] [%clk 0:00:31] } 34... Rf1+ { [%eval 7.69] [%clk 0:04:30] } 35. Bxf1 { [%eval 7.6] [%clk 0:00:36] } 35... Rxf1+ { [%eval 7.47] [%clk 0:04:38] } 36. Ke2 { [%eval 7.41] [%clk 0:00:42] } 36... Rc1 { [%clk 0:04:13] } 37. Be3+ { [%clk 0:00:50] } 1-0