Event: Round 1: Sierra Isaza, Jose Eduardo - Lozano Pulgarin, Maria Antonia
Site: https://lichess.org/broadcast/fide-world-youth-u16-chess-olympiad-2025--matches-19/round-1/0GAlFyS6/kwaz3fch
White: Sierra Isaza, Jose Eduardo
WhiteElo: 1766
Black: Lozano Pulgarin, Maria Antonia
BlackElo: 1609
Result: 1-0
ECO: C02
Opening: French Defense: Advance Variation, Main Line
Variant: Standard
TimeControl: 45+10

1. e4 { [%eval 0.18] } 1... e6 { [%eval 0.28] [%clk 0:44:55] } 2. d4 { [%eval 0.29] } 2... d5 { [%eval 0.37] [%clk 0:44:55] } 3. e5 { [%eval 0.25] } 3... c5 { [%eval 0.23] [%clk 0:44:33] } 4. c3 { [%eval 0.18] } 4... Nc6 { [%eval 0.11] [%clk 0:44:29] } 5. Nf3 { [%eval 0.15] } 5... Qb6 { [%eval 0.22] [%clk 0:43:43] } 6. a3 { [%eval 0.14] } 6... c4 { [%eval 0.28] [%clk 0:32:46] } 7. Nbd2 { [%eval 0.25] } 7... Na5 { [%eval 0.31] [%clk 0:31:33] } 8. Rb1 { [%eval 0.49] } 8... Bd7 { [%eval 0.4] [%clk 0:29:18] } 9. h4 { [%eval 0.32] } 9... h6 { [%eval 0.59] [%clk 0:27:34] } 10. h5 { [%eval 0.51] } 10... Ne7 { [%eval 0.68] [%clk 0:21:51] } 11. b4 { [%eval 0.65] } 11... cxb3 { [%eval 0.64] [%clk 0:19:26] } 12. Nxb3 { [%eval 0.68] } 12... Rb8 { [%eval 1.15] [%clk 0:15:56] } 13. Bd3 { [%eval 0.77] } 13... Nxb3 { [%eval 0.82] [%clk 0:08:45] } 14. Rxb3 { [%eval 0.78] } 14... Qc7 { [%eval 0.79] [%clk 0:07:24] } 15. Qe2 { [%eval 0.63] } 15... a6 { [%eval 1.06] [%clk 0:05:39] } 16. Bd2?! { [%eval 0.42] } { Inaccuracy. O-O was best. } 16... Ba4? { [%eval 1.62] } { Mistake. Nc6 was best. } { [%clk 0:04:22] } 17. Rb1 { [%eval 1.71] } 17... Nc6 { [%eval 1.57] [%clk 0:04:03] } 18. Kf1?! { [%eval 0.83] } { Inaccuracy. Nh4 was best. } 18... Na5 { [%eval 0.58] [%clk 0:03:18] } 19. g4?! { [%eval -0.34] } { Inaccuracy. Nh4 was best. } 19... Nb3?! { [%eval 0.32] } { Inaccuracy. Nc4 was best. } { [%clk 0:02:11] } 20. c4? { [%eval -1.24] } { Mistake. Kg2 was best. } 20... Bxa3?? { [%eval 1.42] } { Blunder. dxc4 was best. } { [%clk 0:00:53] } 21. cxd5 { [%eval 1.65] } 21... exd5 { [%eval 1.67] [%clk 0:00:53] } 22. e6 { [%eval 1.83] } 22... Nxd2+ { [%eval 2.36] [%clk 0:00:35] } 23. Qxd2 { [%eval 2.47] } 23... Bd6 { [%eval 2.79] [%clk 0:00:24] } 24. exf7+ { [%eval 2.78] } 24... Kxf7 { [%eval 2.76] [%clk 0:00:33] } 25. Bg6+ { [%eval 2.36] } 25... Kf8? { [%eval 3.88] } { Mistake. Ke7 was best. } { [%clk 0:00:33] } 26. Kg2 { [%eval 3.39] } 26... Bf4? { [%eval 6.6] } { Mistake. Be8 was best. } { [%clk 0:00:30] } 27. Qb4+ { [%eval 6.61] } 27... Bd6 { [%eval 7.62] [%clk 0:00:04] } 28. Qxa4 { [%eval 7.43] } 28... b5 { [%eval 7.93] [%clk 0:00:12] } 29. Qxa6 { [%eval 8.01] } 29... Qd7 { [%eval 8.12] [%clk 0:00:13] } 30. Bf5 { [%eval 7.55] } 30... Qc7 { [%eval 8.73] [%clk 0:00:00] } 31. Rhc1 { [%eval 8.73] } 31... Qb7? { [%eval #7] } { Checkmate is now unavoidable. Qb6 was best. } { [%clk 0:00:08] } 32. Qxb7 { [%eval #16] } 32... Rxb7 { [%eval 14.09] [%clk 0:00:16] } 33. Rc8+ { [%eval 10.92] } 33... Ke7?! { [%eval #12] } { Checkmate is now unavoidable. Kf7 was best. } { [%clk 0:00:05] } 34. Rxh8?! { [%eval 10.25] } { Lost forced checkmate sequence. Re1+ was best. } 34... b4?! { [%eval #8] } { Checkmate is now unavoidable. Kf7 was best. } { [%clk 0:00:01] } 35. Re1+ { [%eval #7] } 35... Kf6 { [%eval #4] [%clk 0:00:02] } 36. Re6+ { [%eval #3] } 36... Kf7 { [%eval #3] [%clk 0:00:03] } 37. Rhe8 { [%eval #11] } 37... b3 { [%eval #1] [%clk 0:00:00] } 38. Bg6# 1-0