[Event "Amsterdam Chess Open 2026 - Group A"]
[Site "Apollohal, Amsterdam, Netherlands"]
[Date "2026.10.24"]
[Round "4.2"]
[White "Warmerdam, Max"]
[Black "Pham, Khoi"]
[Result "1-0"]
[WhiteElo "2543"]
[WhiteTitle "GM"]
[WhiteFideId "1048104"]
[BlackElo "2423"]
[BlackTitle "IM"]
[BlackFideId "1054988"]
[TimeControl "5400+30"]
[Variant "Standard"]
[ECO "E43"]
[Opening "Nimzo-Indian Defense: St. Petersburg Variation"]
[UTCDate "2026.10.24"]
[UTCTime "13:31:09"]
[BroadcastName "Amsterdam Chess Open 2026 - Group A"]
[BroadcastURL "https://lichess.org/broadcast/amsterdam-chess-open-2026-group-a/round-4/YUkkMmjb"]
[GameURL "https://lichess.org/broadcast/amsterdam-chess-open-2026-group-a/round-4/YUkkMmjb/4SsG1wAX"]

1. d4 { [%eval 0.15] [%clk 1:27:30] } 1... Nf6 { [%eval 0.15] [%clk 1:30:47] } 2. c4 { [%eval 0.16] [%clk 1:27:51] } 2... e6 { [%eval 0.14] [%clk 1:31:12] } 3. Nc3 { [%eval 0.09] [%clk 1:28:16] } 3... Bb4 { [%eval 0.15] [%clk 1:31:25] } 4. e3 { [%eval 0.06] [%clk 1:28:40] } 4... b6 { [%eval 0.29] [%clk 1:30:30] } 5. Bd3 { [%eval 0.23] [%clk 1:26:43] } 5... Bb7 { [%eval 0.21] [%clk 1:30:03] } 6. Nf3 { [%eval 0.18] [%clk 1:27:07] } 6... O-O { [%eval 0.22] [%clk 1:29:15] } 7. O-O { [%eval 0.21] [%clk 1:27:31] } 7... c5 { [%eval 0.19] [%clk 1:29:14] } 8. Na4 { [%eval 0.17] [%clk 1:27:26] } 8... cxd4 { [%eval 0.18] [%clk 1:29:03] } 9. exd4 { [%eval 0.14] [%clk 1:27:22] } 9... Re8 { [%eval 0.13] [%clk 1:27:14] } 10. a3 { [%eval 0.17] [%clk 1:27:32] } 10... Bf8 { [%eval 0.13] [%clk 1:27:39] } 11. b4 { [%eval 0.14] [%clk 1:24:11] } 11... Nc6 { [%eval 0.21] [%clk 1:26:04] } 12. Re1 { [%eval 0.24] [%clk 1:22:48] } 12... Ne7 { [%eval 0.21] [%clk 1:25:53] } 13. Bb2 { [%eval 0.18] [%clk 1:20:00] } 13... Ng6 { [%eval 0.14] [%clk 1:24:41] } 14. Rc1 { [%eval 0.19] [%clk 1:16:31] } 14... d6 { [%eval 0.29] [%clk 1:13:40] } 15. Bf1 { [%eval 0.14] [%clk 1:03:10] } 15... a5?! { [%eval 0.79] } { Inaccuracy. Rc8 was best. } { [%clk 1:08:50] } 16. b5 { [%eval 0.77] [%clk 0:49:25] } 16... Rc8 { [%eval 0.83] [%clk 1:06:19] } 17. Nd2 { [%eval 0.68] [%clk 0:48:18] } 17... Nd7 { [%eval 0.7] [%clk 1:01:50] } 18. Nb3 { [%eval 0.53] [%clk 0:43:32] } 18... Qg5 { [%eval 0.71] [%clk 0:56:39] } 19. Rc3 { [%eval 0.73] [%clk 0:41:59] } 19... f5?! { [%eval 1.84] } { Inaccuracy. Nh4 was best. } { [%clk 0:55:11] } 20. c5 { [%eval 2.13] [%clk 0:36:54] } 20... dxc5 { [%eval 2.14] [%clk 0:48:33] } 21. dxc5 { [%eval 2.09] [%clk 0:37:14] } 21... Nxc5 { [%eval 1.88] [%clk 0:48:57] } 22. Nxb6?! { [%eval 1.05] } { Inaccuracy. Naxc5 was best. } { [%clk 0:32:37] } 22... Ne4?? { [%eval 4.07] } { Blunder. Red8 was best. } { [%clk 0:38:49] } 23. Rxc8 { [%eval 3.77] [%clk 0:27:03] } 23... Bxc8 { [%eval 3.97] [%clk 0:38:58] } 24. Qc1 { [%eval 3.75] [%clk 0:25:07] } 24... Qd8 { [%eval 4.14] [%clk 0:24:11] } 25. Nxc8 { [%eval 4.45] [%clk 0:21:37] } 25... Qxc8 { [%eval 4.35] [%clk 0:22:46] } 26. f3 { [%eval 4.22] [%clk 0:16:17] } 26... Nc5 { [%eval 4.41] [%clk 0:19:20] } 27. Nxa5 { [%eval 4.05] [%clk 0:14:06] } 27... Qc7 { [%eval 4.18] [%clk 0:18:32] } 28. Nc4?! { [%eval 3.27] } { Inaccuracy. Nc6 was best. } { [%clk 0:12:39] } 28... Na4?! { [%eval 4.33] } { Inaccuracy. Rd8 was best. } { [%clk 0:17:36] } 29. Ba1 { [%eval 3.9] [%clk 0:12:22] } 29... Bc5+ { [%eval 3.7] [%clk 0:13:21] } 30. Kh1 { [%eval 3.75] [%clk 0:12:46] } 30... Qe7?! { [%eval 5.23] } { Inaccuracy. Bf2 was best. } { [%clk 0:13:44] } 31. Qc2 { [%eval 5.03] [%clk 0:12:04] } 31... Ra8 { [%eval 4.86] [%clk 0:13:01] } 32. Ne5 { [%eval 4.89] [%clk 0:10:13] } 32... Nf4 { [%eval 5.35] [%clk 0:11:46] } 33. Nc6 { [%eval 5.41] [%clk 0:10:10] } 33... Qg5 { [%eval 6.4] [%clk 0:11:42] } 34. Bd4 { [%eval 6.52] [%clk 0:08:34] } 34... Bd6 { [%eval 7.38] [%clk 0:08:01] } 35. Qc4 { [%eval 7.55] [%clk 0:07:41] } 35... Qh6 { [%eval 7.67] [%clk 0:02:34] } 36. g3 { [%eval 7.32] [%clk 0:06:20] } 36... Nd5 { [%eval 7.29] [%clk 0:03:01] } 37. f4 { [%eval 6.91] [%clk 0:06:22] } 37... Bxa3 { [%eval 8.83] [%clk 0:01:51] } 38. Bg2 { [%eval 8.54] [%clk 0:06:17] } 38... Nab6 { [%eval 8.81] [%clk 0:01:50] } 39. Bxb6 { [%eval 8.64] [%clk 0:06:13] } 39... Nxb6 { [%eval 8.64] [%clk 0:02:15] } 40. Qd4 { [%eval 8.53] [%clk 0:06:37] } 40... Nd5 { [%eval 10.2] [%clk 0:02:24] } 41. Rxe6 { [%eval 10.09] [%clk 0:06:48] } 41... Nf6 { [%eval 9.72] [%clk 0:01:43] } 42. Ne7+ { [%eval 9.42] [%clk 0:06:43] } 1-0