[Event "Biel Chess Festival MTO"] [Site "Biel, Switzerland"] [Date "2024.07.18"] [Round "4.31"] [White "Arsenie, Cristian Marc"] [Black "Rosen, Eric"] [Result "0-1"] [WhiteElo "2131"] [WhiteFideId "1345923"] [BlackElo "2374"] [BlackTitle "IM"] [BlackFideId "2032562"] [TimeControl "100'/40, fb 50'/20, fb 15' + 30''/mv"] [Variant "Standard"] [ECO "B48"] [Opening "Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack"] [StudyName "Round 4"] [ChapterName "Arsenie, Cristian Marc - Rosen, Eric"] [Orientation "white"] 1. e4 { [%eval 0.15] [%clk 1:40:57] } 1... c5 { [%eval 0.25] [%clk 1:40:40] } 2. Nf3 { [%eval 0.22] [%clk 1:41:19] } 2... e6 { [%eval 0.28] [%clk 1:41:01] } 3. d4 { [%eval 0.4] [%clk 1:41:43] } 3... cxd4 { [%eval 0.39] [%clk 1:41:23] } 4. Nxd4 { [%eval 0.25] [%clk 1:42:08] } 4... Nc6 { [%eval 0.28] [%clk 1:41:48] } 5. Nc3 { [%eval 0.34] [%clk 1:42:29] } 5... Qc7 { [%eval 0.35] [%clk 1:42:10] } 6. Be3 { [%eval 0.31] [%clk 1:42:52] } 6... a6 { [%eval 0.23] [%clk 1:42:11] } 7. a3 { [%eval 0.15] [%clk 1:42:54] } 7... Nf6 { [%eval 0.48] [%clk 1:41:39] } 8. f4 { [%eval 0.47] [%clk 1:43:16] } 8... d5 { [%eval 0.38] [%clk 1:35:25] } 9. e5 { [%eval 0.52] [%clk 1:42:21] } 9... Nd7 { [%eval 0.53] [%clk 1:35:50] } 10. Qg4 { [%eval 0.54] [%clk 1:32:34] } 10... Nc5 { [%eval 0.66] [%clk 1:21:24] } 11. O-O-O { [%eval 0.36] [%clk 1:29:05] } 11... Bd7 { [%eval 0.5] [%clk 1:19:01] } 12. Kb1 { [%eval 0.59] [%clk 1:21:54] } 12... b5 { [%eval 0.96] [%clk 1:16:29] } 13. Be2?! { [%eval 0.25] } { Inaccuracy. f5 was best. } { [%clk 1:15:52] } (13. f5) 13... Rb8?! { [%eval 1.35] } { Inaccuracy. g6 was best. } { [%clk 1:11:17] } (13... g6 14. f5 gxf5 15. Qh4 Be7 16. Qf2 Nxd4 17. Bxd4 h5 18. Nxd5 exd5 19. e6) 14. Qg3? { [%eval -0.1] } { Mistake. f5 was best. } { [%clk 1:13:59] } (14. f5 b4) 14... b4 { [%eval -0.05] [%clk 1:07:19] } 15. axb4 { [%eval -0.02] [%clk 1:13:26] } 15... Rxb4 { [%eval -0.14] [%clk 1:07:32] } 16. f5 { [%eval -0.44] [%clk 1:05:20] } 16... Qb8 { [%eval -0.7] [%clk 0:53:44] } 17. b3?? { [%eval -3.47] } { Blunder. Nxc6 was best. } { [%clk 0:53:43] } (17. Nxc6 Rxb2+) 17... Nxb3 { [%eval -3.3] [%clk 0:49:03] } 18. cxb3?! { [%eval -5.0] } { Inaccuracy. Nxc6 was best. } { [%clk 0:46:53] } (18. Nxc6 Bxc6 19. Rhf1 Nd4+ 20. Kc1 Nxe2+ 21. Nxe2 Rb1+ 22. Kd2 Bb4+ 23. c3 Bxc3+) 18... Rxb3+ { [%eval -5.0] [%clk 0:47:44] } 19. Nxb3 { [%eval -5.05] [%clk 0:45:59] } 19... Qxb3+ { [%eval -5.01] [%clk 0:48:05] } 20. Ka1 { [%eval -5.0] [%clk 0:45:21] } 20... Qxc3+ { [%eval -5.02] [%clk 0:48:14] } 21. Kb1 { [%eval -5.06] [%clk 0:45:42] } 21... Qb3+ { [%eval -5.06] [%clk 0:48:12] } 22. Ka1 { [%eval -4.96] [%clk 0:46:05] } 22... Nb4 { [%eval -4.17] [%clk 0:44:51] } 23. Rd2 { [%eval -4.42] [%clk 0:45:02] } 23... Nc2+ { [%eval -4.36] [%clk 0:44:49] } 24. Rxc2 { [%eval -4.1] [%clk 0:45:25] } 24... Qxc2 { [%eval -4.24] [%clk 0:45:13] } 25. Rb1?? { [%eval #-6] } { Checkmate is now unavoidable. Bd1 was best. } { [%clk 0:35:21] } (25. Bd1 Qc3+ 26. Kb1 Bb5 27. Bc2 Bd3 28. Bxd3 Qxd3+ 29. Kb2 Qa3+ 30. Kb1 Qb3+) 25... Qa4+ { [%eval #-5] [%clk 0:44:08] } 26. Kb2 { [%eval #-5] [%clk 0:35:37] } 26... Qa3+?? { [%eval -6.41] } { Lost forced checkmate sequence. Qb4+ was best. } { [%clk 0:42:59] } (26... Qb4+ 27. Kc2 Ba4+ 28. Rb3 Qxb3+ 29. Kd2 Bb4+ 30. Kc1 Qc2#) 27. Kc2 { [%eval -6.37] [%clk 0:35:58] } 27... Ba4+ { [%eval -5.87] [%clk 0:43:19] } 0-1