Event: Round 6: Mattenberger, Matthias - Gallagher, Joseph G.
Date: 2025-07-17
White: Mattenberger, Matthias
WhiteTitle: FM
WhiteElo: 2276
Black: Gallagher, Joseph G.
BlackTitle: GM
BlackElo: 2400
Result: 0-1
ECO: E73
Opening: King's Indian Defense: Semi-Averbakh System
Variant: Standard

1. d4 { [%eval 0.17] [%clk 1:30:57] } 1... Nf6 { [%eval 0.19] [%clk 1:27:05] } 2. c4 { [%eval 0.18] [%clk 1:31:13] } 2... g6 { [%eval 0.28] [%clk 1:27:27] } 3. Nc3 { [%eval 0.18] [%clk 1:31:34] } 3... Bg7 { [%eval 0.51] [%clk 1:27:50] } 4. e4 { [%eval 0.4] [%clk 1:31:54] } 4... d6 { [%eval 0.55] [%clk 1:28:13] } 5. Be2 { [%eval 0.51] [%clk 1:32:16] } 5... O-O { [%eval 0.48] [%clk 1:28:11] } 6. Be3 { [%eval 0.5] [%clk 1:32:39] } 6... Na6 { [%eval 0.38] [%clk 1:22:57] } 7. Nf3 { [%eval 0.41] [%clk 1:32:41] } 7... e5 { [%eval 0.38] [%clk 1:20:47] } 8. O-O { [%eval 0.45] [%clk 1:32:45] } 8... c6 { [%eval 0.64] [%clk 1:15:54] } 9. d5 { [%eval 0.66] [%clk 1:31:58] } 9... Ng4 { [%eval 0.57] [%clk 1:13:45] } 10. Bg5 { [%eval 0.63] [%clk 1:31:34] } 10... f6 { [%eval 0.59] [%clk 1:14:10] } 11. Bh4 { [%eval 0.68] [%clk 1:24:36] } 11... h5 { [%eval 1.02] [%clk 1:12:37] } 12. Nd2 { [%eval 0.66] [%clk 1:22:22] } 12... Nh6 { [%eval 0.66] [%clk 1:07:15] } 13. f3 { [%eval 0.66] [%clk 1:21:04] } 13... Nf7 { [%eval 0.65] [%clk 1:05:21] } 14. Bf2 { [%eval 0.64] [%clk 1:19:51] } 14... Bh6 { [%eval 0.68] [%clk 1:04:13] } 15. a3 { [%eval 0.63] [%clk 1:12:47] } 15... c5 { [%eval 0.62] [%clk 1:03:19] } 16. Rb1 { [%eval 0.6] [%clk 1:06:54] } 16... f5?! { [%eval 1.37] } { Inaccuracy. Bd7 was best. } { [%clk 1:02:19] } 17. b4? { [%eval -0.2] } { Mistake. exf5 was best. } { [%clk 1:00:17] } 17... b6? { [%eval 1.11] } { Mistake. f4 was best. } { [%clk 1:02:43] } 18. Kh1? { [%eval -0.14] } { Mistake. exf5 was best. } { [%clk 0:52:16] } 18... Kh8? { [%eval 1.47] } { Mistake. f4 was best. } { [%clk 0:57:50] } 19. bxc5? { [%eval 0.25] } { Mistake. exf5 was best. } { [%clk 0:50:13] } 19... Nxc5 { [%eval 0.16] [%clk 0:55:38] } 20. Nb3 { [%eval -0.36] [%clk 0:49:48] } 20... Bd7?! { [%eval 0.37] } { Inaccuracy. f4 was best. } { [%clk 0:40:37] } 21. Nxc5 { [%eval 0.37] [%clk 0:44:46] } 21... bxc5 { [%eval 0.4] [%clk 0:41:05] } 22. Qc2?! { [%eval -0.35] } { Inaccuracy. exf5 was best. } { [%clk 0:40:28] } 22... f4 { [%eval -0.34] [%clk 0:37:44] } 23. Rb7 { [%eval -0.32] [%clk 0:35:59] } 23... Bc8 { [%eval -0.32] [%clk 0:33:00] } 24. Rb2 { [%eval -0.69] [%clk 0:34:19] } 24... g5 { [%eval -0.7] [%clk 0:32:24] } 25. Rfb1 { [%eval -0.61] [%clk 0:33:26] } 25... g4 { [%eval -0.64] [%clk 0:30:33] } 26. Qd1 { [%eval -0.94] [%clk 0:25:15] } 26... Rg8 { [%eval -0.98] [%clk 0:30:42] } 27. Qe1?! { [%eval -1.7] } { Inaccuracy. Be1 was best. } { [%clk 0:24:41] } 27... g3 { [%eval -1.57] [%clk 0:27:41] } 28. Bg1 { [%eval -1.62] [%clk 0:23:43] } 28... h4 { [%eval -1.55] [%clk 0:23:36] } 29. Bf1? { [%eval -3.12] } { Mistake. h3 was best. } { [%clk 0:19:29] } 29... h3 { [%eval -3.14] [%clk 0:19:34] } 30. gxh3 { [%eval -3.08] [%clk 0:18:23] } 30... Ng5 { [%eval -3.16] [%clk 0:17:59] } 31. Bg2 { [%eval -3.57] [%clk 0:16:36] } 31... Nxh3 { [%eval -3.52] [%clk 0:17:12] } 32. Bxh3?! { [%eval -5.36] } { Inaccuracy. Qf1 was best. } { [%clk 0:10:23] } 32... Bxh3 { [%eval -5.11] [%clk 0:17:25] } 33. hxg3 { [%eval -6.11] [%clk 0:10:50] } 33... fxg3 { [%eval -6.05] [%clk 0:14:39] } 34. Be3 { [%eval -6.37] [%clk 0:11:01] } 34... Qh4 { [%eval -6.63] [%clk 0:14:15] } 35. Kg1 { [%eval -6.6] [%clk 0:11:07] } 35... Raf8 { [%eval -6.19] [%clk 0:13:43] } 36. Qe2 { [%eval -7.36] [%clk 0:07:15] } 36... Bxe3+ { [%eval -7.17] [%clk 0:13:12] } 37. Qxe3 { [%eval -7.34] [%clk 0:07:41] } 37... Qh5 { [%eval -7.8] [%clk 0:13:34] } 38. Qe2 { [%eval -7.82] [%clk 0:06:59] } 38... Rxf3 { [%eval -7.52] [%clk 0:11:02] } 39. Rb8 { [%eval -9.1] [%clk 0:06:48] } 39... g2 { [%eval -12.84] [%clk 0:11:01] } 40. Rxg8+ { [%eval -65.05] [%clk 0:05:52] } 40... Kxg8 { [%eval -8.89] [%clk 0:11:30] } 41. Rb8+? { [%eval #-12] } { Checkmate is now unavoidable. Qf2 was best. } { [%clk 0:05:05] } 41... Kg7 { [%eval #-11] [%clk 0:11:42] } 0-1