Event: FIDE World Youth U16 Chess Olympiad 2025
Site: https://lichess.org/broadcast/fide-world-youth-u16-chess-olympiad-2025--matches-19/round-5/QJnNr6Ds/YLraiQY4
White: Koolman, Colin Kyle Deniel
Black: Umesh, Sohan
Result: 0-1
ECO: A80
Opening: Dutch Defense
Variant: Standard
TimeControl: 2700+10

1. d4 { [%eval 0.17] [%clk 0:45:09] } 1... f5 { [%eval 0.47] [%clk 0:45:01] } 2. e3 { [%eval 0.39] [%clk 0:45:11] } 2... e6 { [%eval 0.34] [%clk 0:44:44] } 3. Nf3 { [%eval 0.29] [%clk 0:45:10] } 3... Nf6 { [%eval 0.38] [%clk 0:44:15] } 4. Bd3 { [%eval 0.24] [%clk 0:44:56] } 4... b6 { [%eval 0.31] [%clk 0:43:48] } 5. b3 { [%eval 0.13] [%clk 0:44:30] } 5... Bb7 { [%eval 0.18] [%clk 0:43:25] } 6. Bb2 { [%eval 0.04] [%clk 0:44:31] } 6... Be7 { [%eval 0.29] [%clk 0:42:19] } 7. Nc3 { [%eval 0.11] [%clk 0:44:13] } 7... Bb4 { [%eval 0.4] [%clk 0:41:10] } 8. Qd2?! { [%eval -0.55] } { Inaccuracy. O-O was best. } { [%clk 0:43:52] } 8... d6 { [%eval -0.25] [%clk 0:38:41] } 9. a3 { [%eval -0.13] [%clk 0:43:50] } 9... Ne4 { [%eval -0.12] [%clk 0:34:58] } 10. Bxe4 { [%eval -0.12] [%clk 0:43:38] } 10... fxe4?! { [%eval 0.8] } { Inaccuracy. Bxc3 was best. } { [%clk 0:35:06] } 11. Ng1? { [%eval -0.52] } { Mistake. axb4 was best. } { [%clk 0:43:25] } 11... Bxc3 { [%eval -0.51] [%clk 0:34:24] } 12. Bxc3 { [%eval -0.86] [%clk 0:43:22] } 12... Qg5 { [%eval -0.54] [%clk 0:32:14] } 13. f3 { [%eval -0.74] [%clk 0:42:29] } 13... exf3 { [%eval -0.76] [%clk 0:30:14] } 14. gxf3 { [%eval -0.94] [%clk 0:41:53] } 14... Rf8?! { [%eval -0.15] } { Inaccuracy. Qh4+ was best. } { [%clk 0:26:44] } 15. e4?? { [%eval -2.81] } { Blunder. O-O-O was best. } { [%clk 0:37:18] } 15... Qh4+ { [%eval -2.82] [%clk 0:26:37] } 16. Kd1 { [%eval -2.93] [%clk 0:36:50] } 16... Bxe4 { [%eval -2.68] [%clk 0:20:50] } 17. Qe3 { [%eval -3.08] [%clk 0:35:22] } 17... Bd5 { [%eval -2.98] [%clk 0:19:43] } 18. Kd2 { [%eval -2.93] } 18... Qf6 { [%eval -2.73] } 19. Rf1 { [%eval -2.52] } 19... Nd7 { [%eval -2.3] } 20. Bb2 { [%eval -2.68] } 20... O-O-O { [%eval -2.65] } 21. c4?! { [%eval -3.38] } { Inaccuracy. Ne2 was best. } 21... Bb7 { [%eval -3.43] } 22. h3 { [%eval -4.03] } 22... c5 { [%eval -3.48] } 23. Rh2 { [%eval -4.26] } 23... e5 { [%eval -3.8] } 24. d5 { [%eval -3.75] } 24... Qg6?? { [%eval -1.55] } { Blunder. b5 was best. } 25. Rff2?? { [%eval -5.05] } { Blunder. a4 was best. } 25... Rfe8? { [%eval -2.54] } { Mistake. Qxg1 was best. } 0-1