Event: Nuorten SM 2025, U18
Site: Valkeakoski, Finland
Date: 2025-06-05
White: Collander, Joel
WhiteElo: 1907
Black: Ruusunen, Onni
BlackElo: 1985
Result: 1-0
ECO: D13
Opening: Slav Defense: Exchange Variation
Variant: Standard
TimeControl: 90' / 40 moves + 30' + 30 sec / move

1. d4 { [%eval 0.17] [%clk 1:28:00] } 1... d5 { [%eval 0.2] [%clk 1:28:16] } 2. c4 { [%eval 0.18] [%clk 1:28:24] } 2... c6 { [%eval 0.21] [%clk 1:28:42] } 3. Nf3 { [%eval 0.2] [%clk 1:28:49] } 3... Nf6 { [%eval 0.24] [%clk 1:29:07] } 4. cxd5 { [%eval 0.23] [%clk 1:29:15] } 4... cxd5 { [%eval 0.12] [%clk 1:29:28] } 5. Nc3 { [%eval 0.12] [%clk 1:29:42] } 5... Nc6 { [%eval 0.09] [%clk 1:29:36] } 6. Bf4 { [%eval 0.1] [%clk 1:30:06] } 6... a6 { [%eval 0.24] [%clk 1:29:51] } 7. Rc1 { [%eval 0.16] [%clk 1:30:18] } 7... Bg4 { [%eval 0.15] [%clk 1:28:12] } 8. Ne5 { [%eval 0.38] [%clk 1:30:29] } 8... Rc8 { [%eval 0.93] [%clk 1:01:24] } 9. Nxg4 { [%eval 1.07] [%clk 1:29:40] } 9... Nxg4 { [%eval 1.05] [%clk 1:01:42] } 10. e4 { [%eval 1.0] [%clk 1:24:21] } 10... Nf6 { [%eval 1.03] [%clk 0:55:22] } 11. e5 { [%eval 1.1] [%clk 1:24:00] } 11... Ng8?! { [%eval 1.89] } { Inaccuracy. Nd7 was best. } { [%clk 0:50:01] } 12. a3?! { [%eval 1.07] } { Inaccuracy. Qb3 was best. } { [%clk 1:19:35] } 12... e6 { [%eval 1.03] [%clk 0:48:10] } 13. Be3 { [%eval 1.19] [%clk 1:15:21] } 13... Nge7 { [%eval 1.33] [%clk 0:36:48] } 14. Bd3 { [%eval 1.15] [%clk 1:14:59] } 14... g6 { [%eval 1.4] [%clk 0:36:07] } 15. g4? { [%eval 0.23] } { Mistake. O-O was best. } { [%clk 1:10:58] } 15... b5? { [%eval 1.42] } { Mistake. h5 was best. } { [%clk 0:33:25] } 16. b4?! { [%eval 0.6] } { Inaccuracy. a4 was best. } { [%clk 1:10:47] } 16... Rc7? { [%eval 2.07] } { Mistake. Bg7 was best. } { [%clk 0:28:08] } 17. Bxb5 { [%eval 2.06] [%clk 1:07:26] } 17... axb5 { [%eval 2.0] [%clk 0:26:40] } 18. Nxb5 { [%eval 2.05] [%clk 1:07:54] } 18... Rd7 { [%eval 2.06] [%clk 0:25:40] } 19. Bg5 { [%eval 1.97] [%clk 1:07:53] } 19... Qb8?! { [%eval 3.0] } { Inaccuracy. Na7 was best. } { [%clk 0:19:25] } 20. Qa4 { [%eval 2.93] [%clk 1:07:34] } 20... Nxe5? { [%eval 5.22] } { Mistake. Bg7 was best. } { [%clk 0:06:57] } 21. dxe5 { [%eval 5.0] [%clk 1:02:29] } 21... Qxe5+ { [%eval 5.56] [%clk 0:06:10] } 22. Kf1 { [%eval 5.5] [%clk 1:02:58] } 22... f6 { [%eval 5.79] [%clk 0:03:02] } 23. Bxf6 { [%eval 5.77] [%clk 1:00:34] } 23... Qxf6?? { [%eval #3] } { Checkmate is now unavoidable. Qf4 was best. } { [%clk 0:03:17] } 24. Nd6+ { [%eval #2] [%clk 1:00:57] } 24... Kd8 { [%eval #2] [%clk 0:03:31] } 25. Qa5+ { [%eval #1] [%clk 1:01:25] } 25... Rc7 { [%clk 0:03:09] } 26. Qxc7# { [%clk 1:01:52] } 1-0