Event: Round 5: Alonso Orta, Osiel Alberto - Chile Vela, David Leonardo
Site: https://lichess.org/broadcast/fide-world-youth-u16-chess-olympiad-2025--matches-1-18/round-5/FT945tH0/7Pu2Hd0w
White: Alonso Orta, Osiel Alberto
WhiteTitle: FM
WhiteElo: 2081
Black: Chile Vela, David Leonardo
BlackElo: 1929
Result: 1-0
ECO: B99
Opening: Sicilian Defense: Najdorf Variation, Main Line
Variant: Standard
TimeControl: 45+10

1. e4 { [%eval 0.18] [%clk 0:45:18] } 1... c5 { [%eval 0.24] [%clk 0:45:16] } 2. Nf3 { [%eval 0.2] [%clk 0:45:20] } 2... d6 { [%eval 0.31] [%clk 0:45:25] } 3. d4 { [%eval 0.22] [%clk 0:45:24] } 3... cxd4 { [%eval 0.19] [%clk 0:45:32] } 4. Nxd4 { [%eval 0.18] [%clk 0:45:29] } 4... Nf6 { [%eval 0.31] [%clk 0:45:39] } 5. Nc3 { [%eval 0.32] [%clk 0:45:34] } 5... a6 { [%eval 0.25] [%clk 0:45:48] } 6. Bg5 { [%eval 0.0] [%clk 0:45:37] } 6... e6 { [%eval 0.17] [%clk 0:45:50] } 7. f4 { [%eval 0.04] [%clk 0:45:43] } 7... Be7 { [%eval 0.32] [%clk 0:45:58] } 8. Qf3 { [%eval 0.43] [%clk 0:45:45] } 8... Qc7 { [%eval 0.53] [%clk 0:46:07] } 9. O-O-O { [%eval 0.54] [%clk 0:45:46] } 9... Nbd7 { [%eval 0.47] [%clk 0:46:14] } 10. Bd3 { [%eval 0.31] [%clk 0:44:30] } 10... h6 { [%eval 0.68] [%clk 0:45:47] } 11. Bh4 { [%eval 0.55] [%clk 0:42:57] } 11... b5?? { [%eval 2.4] } { Blunder. g5 was best. } { [%clk 0:45:56] } 12. e5 { [%eval 2.46] [%clk 0:37:27] } 12... Bb7 { [%eval 2.15] [%clk 0:46:05] } 13. Qh3?? { [%eval -0.22] } { Blunder. Nxe6 was best. } { [%clk 0:35:22] } 13... dxe5 { [%eval -0.3] [%clk 0:44:06] } 14. Nxe6 { [%eval -0.24] [%clk 0:35:06] } 14... fxe6 { [%eval -0.27] [%clk 0:40:42] } 15. Bg6+ { [%eval -0.43] [%clk 0:32:03] } 15... Kf8 { [%eval -0.42] [%clk 0:38:27] } 16. Rxd7? { [%eval -1.72] } { Mistake. Qxe6 was best. } { [%clk 0:25:16] } 16... Qxd7 { [%eval -1.66] [%clk 0:36:34] } 17. fxe5 { [%eval -1.47] [%clk 0:25:09] } 17... b4? { [%eval 0.17] } { Mistake. Rd8 was best. } { [%clk 0:26:59] } 18. Rd1 { [%eval -0.25] [%clk 0:21:07] } 18... Qc6 { [%eval -0.23] [%clk 0:23:33] } 19. exf6 { [%eval -0.83] [%clk 0:20:02] } 19... Bxf6?? { [%eval 5.46] } { Blunder. gxf6 was best. } { [%clk 0:23:19] } 20. Ne4 { [%eval 5.44] [%clk 0:18:05] } 20... Ke7 { [%eval 7.05] [%clk 0:18:10] } 21. Bxf6+ { [%eval 6.93] [%clk 0:15:09] } 21... gxf6 { [%eval 7.06] [%clk 0:18:17] } 22. Qh4 { [%eval 7.14] [%clk 0:15:17] } 22... Raf8? { [%eval #7] } { Checkmate is now unavoidable. Qxe4 was best. } { [%clk 0:15:52] } 23. Nxf6 { [%eval #6] [%clk 0:15:20] } 23... Rf7 { [%eval #2] [%clk 0:09:55] } 24. Nh7+ { [%eval #1] [%clk 0:15:25] } 24... Ke8 { [%eval #1] [%clk 0:09:53] } 25. Rd8# { [%clk 0:15:34] } 1-0