Event: Olomouc Chess Summer 2025 - D2 open seniors tournament 65+
Site: https://lichess.org/broadcast/olomouc-chess-summer-2025--d2-seniors-65/round-7/xrGoQ5w7/udX8BMB2
White: Petras, Milan
WhiteTitle: CM
WhiteElo: 1977
Black: Lorenc, Oldrich
BlackElo: 2005
Result: 1-0
ECO: D91
Opening: Grünfeld Defense: Three Knights Variation, Petrosian System
Variant: Standard
TimeControl: 2x90 min./40 moves + 30 min. + 30 sec./move

1. Nf3 { [%eval 0.1] [%clk 1:30:32] } 1... g6 { [%eval 0.38] [%clk 1:29:44] } 2. c4 { [%eval 0.16] [%clk 1:30:44] } 2... Bg7 { [%eval 0.21] [%clk 1:29:40] } 3. d4 { [%eval 0.28] [%clk 1:29:39] } 3... Nf6 { [%eval 0.27] [%clk 1:29:45] } 4. Nc3 { [%eval 0.17] [%clk 1:29:48] } 4... d5 { [%eval 0.32] [%clk 1:30:07] } 5. Bg5 { [%eval 0.15] [%clk 1:23:37] } 5... c6 { [%eval 0.4] [%clk 1:27:01] } 6. e3 { [%eval 0.38] [%clk 1:19:26] } 6... O-O { [%eval 0.48] [%clk 1:26:33] } 7. Bd3 { [%eval 0.3] [%clk 1:18:01] } 7... Nbd7 { [%eval 0.61] [%clk 1:12:49] } 8. O-O { [%eval 0.56] [%clk 1:07:16] } 8... Re8 { [%eval 0.66] [%clk 1:00:27] } 9. cxd5 { [%eval 0.72] [%clk 1:01:05] } 9... Nxd5 { [%eval 0.78] [%clk 0:54:33] } 10. Nxd5 { [%eval 0.7] [%clk 0:54:53] } 10... cxd5 { [%eval 0.77] [%clk 0:54:54] } 11. Qb3 { [%eval 0.67] [%clk 0:48:59] } 11... h6 { [%eval 1.03] [%clk 0:46:50] } 12. Bf4?! { [%eval 0.35] } { Inaccuracy. Bh4 was best. } { [%clk 0:47:44] } 12... e6?! { [%eval 1.13] } { Inaccuracy. e5 was best. } { [%clk 0:40:34] } 13. Rfc1?! { [%eval 0.26] } { Inaccuracy. Bg3 was best. } { [%clk 0:46:44] } 13... a6?! { [%eval 1.14] } { Inaccuracy. e5 was best. } { [%clk 0:40:24] } 14. a4?! { [%eval 0.19] } { Inaccuracy. Bg3 was best. } { [%clk 0:46:33] } 14... e5 { [%eval 0.2] [%clk 0:31:34] } 15. dxe5 { [%eval 0.26] [%clk 0:45:44] } 15... Nxe5 { [%eval 0.36] [%clk 0:31:55] } 16. Nxe5 { [%eval 0.1] [%clk 0:37:34] } 16... Bxe5 { [%eval 0.18] [%clk 0:32:12] } 17. Bxe5 { [%eval 0.23] [%clk 0:35:58] } 17... Rxe5 { [%eval 0.22] [%clk 0:32:29] } 18. Qc3 { [%eval 0.13] [%clk 0:32:29] } 18... Re7 { [%eval 0.28] [%clk 0:22:54] } 19. Qd4 { [%eval 0.17] [%clk 0:30:50] } 19... Be6 { [%eval 0.14] [%clk 0:22:28] } 20. Rc5 { [%eval 0.03] [%clk 0:29:53] } 20... Rc7 { [%eval 0.03] [%clk 0:19:05] } 21. Rac1 { [%eval 0.0] [%clk 0:24:44] } 21... Rac8 { [%eval 0.15] [%clk 0:19:15] } 22. R1c3 { [%eval 0.0] [%clk 0:20:46] } 22... Qd6 { [%eval 0.06] [%clk 0:18:00] } 23. Rxc7 { [%eval 0.07] [%clk 0:16:17] } 23... Rxc7 { [%eval 0.2] [%clk 0:18:12] } 24. f3 { [%eval 0.0] [%clk 0:11:26] } 24... h5 { [%eval 0.0] [%clk 0:17:20] } 25. g3 { [%eval 0.0] [%clk 0:10:11] } 25... Rxc3 { [%eval 0.0] [%clk 0:14:55] } 26. Qxc3 { [%eval 0.0] [%clk 0:10:28] } 26... Qb6 { [%eval 0.0] [%clk 0:12:32] } 27. Kf2 { [%eval 0.0] [%clk 0:10:06] } 27... a5 { [%eval 0.0] [%clk 0:12:54] } 28. Ke2 { [%eval 0.0] [%clk 0:09:44] } 28... Kf8 { [%eval 0.0] [%clk 0:13:06] } 29. Kd2 { [%eval 0.0] [%clk 0:08:42] } 29... Ke7 { [%eval 0.0] [%clk 0:13:10] } 30. Bb5 { [%eval 0.0] [%clk 0:06:30] } 30... Kd6 { [%eval 0.32] [%clk 0:11:53] } 31. f4 { [%eval 0.0] [%clk 0:06:36] } 31... Qc5?? { [%eval 3.94] } { Blunder. Ke7 was best. } { [%clk 0:10:16] } 32. Qxa5 { [%eval 3.74] [%clk 0:04:23] } 32... d4?? { [%eval #2] } { Checkmate is now unavoidable. Ke7 was best. } { [%clk 0:10:18] } 33. Qd8+ { [%eval #-9] } 33... Bd7 34. Qxd7# 1-0