[Event "U.S. National Invitational Tournaments"] [Site "Grand Rapids"] [Date "2023.07.30"] [Round "02"] [White "Managadze, Nikoloz"] [Black "Cotreau, Kevin L"] [Result "1-0"] [WhiteElo "2434"] [BlackElo "2157"] [TimeControl "5400+30"] [Annotator "Davis Zong Jr"] [Variant "Standard"] [ECO "A34"] [Opening "English Opening: Symmetrical Variation, Fianchetto Variation"] [StudyName "National Invitationals"] [ChapterName "Managadze, Nikoloz - Cotreau, Kevin L"] [ChapterURL "https://lichess.org/study/w2guu0Vb/ftyMkYDC"] [Orientation "white"] 1. c4 { [%clk 1:21:03] } 1... Nf6 { [%clk 1:30:31] } 2. Nc3 { [%clk 1:20:42] } 2... c5 { [%clk 1:30:35] } 3. g3 { [%clk 1:19:15] } 3... Nc6 { [%clk 1:29:44] } 4. Bg2 { [%clk 1:19:38] } 4... g6 { [%clk 1:28:00] } 5. e3 { [%clk 1:19:35] } 5... Bg7 { [%clk 1:27:32] } 6. d4 { [%clk 1:18:04] } 6... cxd4 { [%clk 1:26:33] } 7. exd4 { [%clk 1:18:29] } 7... O-O { [%clk 1:25:58] } 8. Nge2 { [%clk 1:18:15] } 8... d5 { This pawn sac is interesting. Cotreau is banking on achieving enough compensation for the pawn by accelerating his development. } { [%clk 1:18:56] } (8... e6) 9. Nxd5 { [%clk 1:03:21] } 9... Bg4 { [%clk 1:18:50] } 10. Ndc3 { [%clk 1:02:38] } 10... e5 { [%clk 1:11:47] } 11. d5 { [%clk 0:56:32] } 11... Nd4 { [%clk 1:11:51] } 12. O-O { [%clk 0:56:55] } 12... Nf3+ { [%clk 1:07:51] } (12... Rc8 13. b3 b5 14. h3 Bxe2 15. Nxe2 bxc4 16. Ba3 $14) 13. Kh1 { [%clk 0:57:05] } 13... Qc8 { [%clk 1:02:40] } 14. h3! { This wins two pieces for a rook and a pawn. } { [%clk 0:47:24] } 14... Bxh3 { [%clk 1:02:21] } 15. Bxf3 { [%clk 0:47:49] } 15... Bxf1 { [%clk 1:02:45] } 16. Qxf1 { [%clk 0:48:17] } 16... Qxc4 { [%clk 1:03:01] } 17. b3 { [%clk 0:44:00] } 17... Qd3 { [%clk 1:00:12] } 18. Be3 { [%clk 0:43:28] } (18. Bg2! { This keeps the c1-bishop flexible, as Bg2 needed to be played anyways. }) 18... Qf5 { [%clk 0:56:53] } 19. Bg2 { [%clk 0:36:59] } 19... Ng4 { [%clk 0:53:24] } 20. Bh3 { [%clk 0:37:22] } 20... Qh5 { [%clk 0:52:10] } 21. Kg2 { [%clk 0:36:50] } 21... Nxe3+ { [%clk 0:48:12] } 22. fxe3 { [%clk 0:37:15] } 22... f5 { The pieces look awkwardly placed, but Managadze manages to untangle himself. } { [%clk 0:48:30] } 23. Rd1 { [%clk 0:33:05] } 23... Qg5 { [%clk 0:47:28] } 24. e4 { [%clk 0:27:50] } 24... fxe4 { With the f-pawn gone, White's pieces are free to spring to life. } { [%clk 0:46:49] } (24... h5! 25. Qf3 f4 26. d6) 25. Qg1 { [%clk 0:25:55] } 25... Qh5 { [%clk 0:43:06] } 26. Be6+ { [%clk 0:25:34] } 26... Kh8 { [%clk 0:43:28] } 27. g4 { [%clk 0:25:50] } 27... Qh4 { [%clk 0:38:54] } 28. Nxe4 $18 { Suddenly, all of White's pieces are monsters, and the game is effectively over. } { [%clk 0:26:08] } 28... Rf4 { [%clk 0:34:23] } 29. Nxf4 { [%clk 0:25:36] } 29... exf4 { [%clk 0:34:51] } 30. Qf2 { [%clk 0:25:53] } 30... f3+ { [%clk 0:30:09] } 31. Qxf3 { [%clk 0:25:59] } 31... Be5 { [%clk 0:28:14] } 32. Rh1 { [%clk 0:25:34] } 32... Qe7 { [%clk 0:28:26] } 33. Qf7 { 1-0 White wins. } { [%clk 0:25:49] } 1-0