Event: World Senior Chess Championship 2024
Site: Porto Santo, Portugal
Date: 2024-11-24
White: Markzon, Gregory
WhiteTitle: FM
WhiteElo: 2057
Black: Hugentobler, Patrick
BlackTitle: FM
BlackElo: 2216
Result: 0-1
ECO: E11
Opening: Bogo-Indian Defense: Retreat Variation
Variant: Standard
TimeControl: 90'/40+30'/G+30''

1. d4 { [%eval 0.17] [%clk 1:30:52] } 1... d5 { [%eval 0.24] [%clk 1:30:54] } 2. c4 { [%eval 0.19] [%clk 1:30:56] } 2... e6 { [%eval 0.27] [%clk 1:31:16] } 3. Nf3 { [%eval 0.16] [%clk 1:31:01] } 3... Nf6 { [%eval 0.17] [%clk 1:31:27] } 4. g3 { [%eval 0.15] [%clk 1:31:16] } 4... Bb4+ { [%eval 0.15] [%clk 1:31:20] } 5. Bd2 { [%eval 0.13] [%clk 1:30:51] } 5... Be7 { [%eval 0.14] [%clk 1:31:36] } 6. Bg2 { [%eval 0.09] [%clk 1:31:09] } 6... c6 { [%eval 0.14] [%clk 1:31:49] } 7. O-O { [%eval 0.15] [%clk 1:29:42] } 7... O-O { [%eval 0.15] [%clk 1:32:01] } 8. Bf4 { [%eval 0.01] [%clk 1:25:49] } 8... Nh5 { [%eval 0.32] [%clk 1:32:02] } 9. cxd5?! { [%eval -0.53] } { Inaccuracy. Bc1 was best. } { [%clk 1:25:02] } 9... Nxf4 { [%eval -0.45] [%clk 1:30:34] } 10. gxf4 { [%eval -0.46] [%clk 1:25:23] } 10... exd5 { [%eval -0.48] [%clk 1:30:39] } 11. Nc3 { [%eval -0.67] [%clk 1:23:31] } 11... Bd6 { [%eval -0.67] [%clk 1:26:46] } 12. e3 { [%eval -0.61] [%clk 1:22:25] } 12... Bf5 { [%eval -0.33] [%clk 1:20:43] } 13. Ne2 { [%eval -0.35] [%clk 1:20:53] } 13... Qc8 { [%eval 0.03] [%clk 1:10:24] } 14. Ng3 { [%eval 0.09] [%clk 1:16:19] } 14... Bh3 { [%eval 0.59] [%clk 1:09:48] } 15. Bxh3 { [%eval 0.41] [%clk 1:09:38] } 15... Qxh3 { [%eval 0.41] [%clk 1:10:11] } 16. Kh1 { [%eval 0.15] [%clk 1:08:05] } 16... f6 { [%eval 0.17] [%clk 1:00:52] } 17. Rg1 { [%eval 0.17] [%clk 1:04:31] } 17... Rf7 { [%eval 0.34] [%clk 0:58:44] } 18. Rg2 { [%eval 0.31] [%clk 1:01:19] } 18... Nd7? { [%eval 1.77] } { Mistake. Kh8 was best. } { [%clk 0:52:06] } 19. Qd3?! { [%eval 0.82] } { Inaccuracy. Nh4 was best. } { [%clk 0:55:13] } 19... Be7?! { [%eval 1.84] } { Inaccuracy. Nb6 was best. } { [%clk 0:33:41] } 20. Rag1?! { [%eval 1.01] } { Inaccuracy. Ng1 was best. } { [%clk 0:51:44] } 20... Kh8 { [%eval 1.07] [%clk 0:32:45] } 21. Nd2?! { [%eval 0.08] } { Inaccuracy. e4 was best. } { [%clk 0:48:58] } 21... g6 { [%eval 0.55] [%clk 0:30:35] } 22. Qb3 { [%eval 0.47] [%clk 0:44:25] } 22... Nb6 { [%eval 0.52] [%clk 0:27:52] } 23. Qd3?! { [%eval -0.29] } { Inaccuracy. a4 was best. } { [%clk 0:40:30] } 23... Bd6 { [%eval -0.2] [%clk 0:25:17] } 24. f5 { [%eval -0.34] [%clk 0:36:27] } 24... g5 { [%eval -0.15] [%clk 0:25:23] } 25. e4 { [%eval -0.36] [%clk 0:35:40] } 25... dxe4 { [%eval -0.29] [%clk 0:23:39] } 26. Ndxe4 { [%eval -0.52] [%clk 0:36:00] } 26... Rd8 { [%eval -0.24] [%clk 0:23:26] } 27. Qe2?! { [%eval -0.98] } { Inaccuracy. Qd1 was best. } { [%clk 0:34:29] } 27... Bxg3?! { [%eval 0.0] } { Inaccuracy. Re7 was best. } { [%clk 0:20:06] } 28. Rxg3?? { [%eval -1.98] } { Blunder. Qf3 was best. } { [%clk 0:31:01] } 28... Qxf5 { [%eval -1.82] [%clk 0:19:43] } 29. Rf3 { [%eval -1.95] [%clk 0:31:10] } 29... Qd5 { [%eval -1.78] [%clk 0:14:15] } 30. Rg2 { [%eval -1.83] [%clk 0:29:43] } 30... Re7 { [%eval -1.57] [%clk 0:13:19] } 31. Re3 { [%eval -1.47] [%clk 0:27:05] } 31... Qxd4 { [%eval -1.32] [%clk 0:12:42] } 32. Nxg5 { [%eval -1.24] [%clk 0:25:59] } 32... Qd1+ { [%eval -1.38] [%clk 0:12:46] } 33. Rg1 { [%eval -1.15] [%clk 0:25:33] } 33... Qd5+ { [%eval -1.23] [%clk 0:12:21] } 34. f3?! { [%eval -2.08] } { Inaccuracy. Nf3 was best. } { [%clk 0:24:40] } 34... Rxe3 { [%eval -2.11] [%clk 0:12:27] } 35. Qxe3 { [%eval -2.02] [%clk 0:23:36] } 35... fxg5 { [%eval -2.06] [%clk 0:12:22] } 36. Qc3+ { [%eval -2.0] [%clk 0:23:35] } 36... Qd4?? { [%eval 4.35] } { Blunder. Kg8 was best. } 37. Rd1 { [%eval 4.27] [%clk 0:23:34] } 0-1