Event: FIDEWORLDYOUTHCHESSCHAMPIONSHIP Open 16
Site: Montesilvano, Italy
Date: 2023-11-18
White: Colev, Ivor
WhiteElo: 2102
Black: Heinrich, John
BlackElo: 2269
Result: 1-0
ECO: B90
Opening: Sicilian Defense: Najdorf Variation
Variant: Standard
TimeControl: 90' x 40 + 30' + 30\

1. e4 { [%eval 0.36] [%clk 1:30:58] } 1... c5 { [%eval 0.32] [%clk 1:30:43] } 2. Nf3 { [%eval 0.0] [%clk 1:31:23] } 2... d6 { [%eval 0.0] [%clk 1:31:08] } 3. d4 { [%eval 0.25] [%clk 1:31:50] } 3... cxd4 { [%eval 0.13] [%clk 1:31:32] } 4. Nxd4 { [%eval 0.27] [%clk 1:32:19] } 4... Nf6 { [%eval 0.3] [%clk 1:31:53] } 5. Nc3 { [%eval 0.21] [%clk 1:32:46] } 5... a6 { [%eval 0.39] [%clk 1:32:09] } 6. Qd3 { [%eval -0.09] [%clk 1:33:11] } 6... e6 { [%eval 0.18] [%clk 1:30:33] } 7. g4 { [%eval 0.0] [%clk 1:33:36] } 7... d5?! { [%eval 0.67] } { Inaccuracy. Nxg4 was best. } { [%clk 1:20:19] } 8. g5 { [%eval 0.63] [%clk 1:24:39] } 8... dxe4 { [%eval 0.79] [%clk 1:19:36] } 9. Nxe4 { [%eval 0.77] [%clk 1:24:53] } 9... Nd5 { [%eval 0.76] [%clk 1:17:01] } 10. Bd2 { [%eval 0.73] [%clk 1:20:36] } 10... Bd7 { [%eval 0.78] [%clk 1:02:18] } 11. O-O-O { [%eval 0.79] [%clk 1:05:58] } 11... Nc6 { [%eval 0.83] [%clk 1:00:18] } 12. Nxc6 { [%eval 0.57] [%clk 0:52:12] } 12... Bxc6 { [%eval 0.72] [%clk 1:00:20] } 13. Qh3 { [%eval 0.52] [%clk 0:51:40] } 13... Be7 { [%eval 0.92] [%clk 0:49:40] } 14. g6 { [%eval 1.28] [%clk 0:44:26] } 14... f5 { [%eval 1.42] [%clk 0:40:16] } 15. Rg1?! { [%eval 0.38] } { Inaccuracy. Bc4 was best. } { [%clk 0:22:48] } 15... Qb6?? { [%eval 2.78] } { Blunder. h6 was best. } { [%clk 0:25:33] } 16. Ng5?? { [%eval 0.8] } { Blunder. gxh7 was best. } { [%clk 0:21:42] } 16... Bf6 { [%eval 1.0] [%clk 0:22:38] } 17. c3 { [%eval 1.07] [%clk 0:21:40] } 17... O-O-O { [%eval 0.61] [%clk 0:15:37] } 18. Nf7 { [%eval 0.78] [%clk 0:19:34] } 18... Qa5? { [%eval 2.07] } { Mistake. h6 was best. } { [%clk 0:13:44] } 19. Bc4 { [%eval 2.13] [%clk 0:18:27] } 19... b5?! { [%eval 3.1] } { Inaccuracy. h6 was best. } { [%clk 0:12:25] } 20. Bb3 { [%eval 3.01] [%clk 0:18:30] } 20... b4 { [%eval 3.6] [%clk 0:11:59] } 21. cxb4 { [%eval 3.6] [%clk 0:13:15] } 21... Qb6 { [%eval 3.84] } 22. Nxd8 { [%eval 3.96] [%clk 0:12:34] } 22... Rxd8 { [%eval 4.42] [%clk 0:08:59] } 23. gxh7 { [%eval 4.67] [%clk 0:11:23] } 23... Rh8 { [%eval 4.57] [%clk 0:08:59] } 24. Kb1 { [%eval 4.6] [%clk 0:06:25] } 24... Kb7 { [%eval 4.72] [%clk 0:07:54] } 25. Bxd5 { [%eval 5.13] [%clk 0:05:34] } 25... Bxd5 { [%eval 4.83] [%clk 0:08:19] } 26. Bc3 { [%eval 5.03] [%clk 0:05:56] } 1-0