[Event "U.S. National Elementary School Championship 2024 K6"] [Site "Columbus, Ohio"] [Date "2024.04.27"] [Round "04"] [White "Leqi Han"] [Black "Jammalamadaka, Vihaan"] [Result "0-1"] [WhiteElo "1853"] [BlackElo "2055"] [TimeControl "5400+10"] [Variant "Standard"] [ECO "D91"] [Opening "Grünfeld Defense: Three Knights Variation, Petrosian System"] [Annotator "https://lichess.org/@/ChessLifeOnline"] [Source "https://lichess.org/study/RWJ340a8/m1O9To4r"] [Orientation "white"] 1. d4 { [%clk 1:29:58] } 1... Nf6 { [%clk 1:29:50] } 2. c4 { [%clk 1:29:56] } 2... g6 { [%clk 1:29:47] } 3. Nc3 { [%clk 1:28:42] } 3... d5 { [%clk 1:29:42] } 4. Nf3 { [%clk 1:28:35] } 4... Bg7 { [%clk 1:29:37] } 5. Bg5 { [%clk 1:28:30] } 5... Ne4 { [%clk 1:29:37] } 6. Bf4 { [%clk 1:28:30] } 6... Nxc3 { [%clk 1:29:34] } 7. bxc3 { [%clk 1:28:30] } 7... c5 { [%clk 1:29:32] } 8. e3 { [%clk 1:28:30] } 8... O-O { [%clk 1:28:50] } 9. cxd5 { [%clk 1:28:25] } 9... cxd4 { [%clk 1:28:50] } 10. cxd4 { [%clk 1:28:25] } 10... Qxd5 { [%clk 1:28:42] } 11. Be2 { [%clk 1:28:21] } 11... Nc6 { [%clk 1:28:20] } 12. O-O { [%clk 1:27:35] } 12... Bf5 { [%clk 1:27:51] } 13. Qa4 { [%clk 1:27:18] } 13... Bd7 { [%clk 1:20:40] } 14. Qa3 { [%clk 1:24:19] } 14... a5 { [%clk 0:50:44] } 15. Rfc1 { [%clk 1:22:22] } 15... Nb4 { [%clk 0:45:50] } 16. Rc5 { [%clk 1:21:40] } 16... Qxc5 { [%clk 0:43:25] } 17. dxc5 { [%clk 1:21:39] } 17... Bxa1 { [%clk 0:43:15] } 18. Ne5 { [%clk 1:20:17] } 18... Be6 { [%clk 0:37:17] } 19. Bf3 { [%clk 1:19:55] } 19... Bd5 { [%clk 0:36:14] } 20. Bxd5 { [%clk 1:18:46] } 20... Nxd5 { [%clk 0:35:50] } 21. Qb3 { [%clk 1:17:03] } 21... Nxf4 { [%clk 0:34:19] } 22. exf4 { [%clk 1:17:03] } 22... Bxe5 { [%clk 0:32:25] } 23. fxe5 { [%clk 1:16:39] } 23... Rac8 { [%clk 0:31:41] } 24. Qa3 { [%clk 1:15:37] } 24... Rfd8 { [%clk 0:30:52] } 25. g3 { [%clk 1:14:57] } 25... Rd5 { [%clk 0:30:20] } 26. e6 { [%clk 1:13:37] } 26... Rcxc5 { [%clk 0:28:36] } 27. exf7+ { [%clk 1:13:25] } 27... Kxf7 { [%clk 0:28:24] } 28. Qf3+ { [%clk 1:13:05] } 28... Kg7 { [%clk 0:25:49] } 29. Qe4 { [%clk 1:12:26] } 29... e5 { [%clk 0:24:30] } 30. f4?? { White's plan had to be to create a "fortress" that limited the effectiveness of the rooks. This move both increases their ability to coordinate on White's seventh rank and exposes White's king to "ladder mate" ideas. } { [%clk 1:12:21] } (30. Kg2 { is not forced, but illustrates how White can anticipate Black's plan while creating activity of their own on the kingside. } 30... b6 { Black can prepare ... Rd5-d2, but it's slow. } 31. g4 Kf6 { in order to prevent Qe4-b7 coming with check. } 32. h4 Ke6 33. g5 Rd2 34. Qb7 Rcc2 35. Qxh7 $10 { with enough counterplay from the queen to give up the f-pawn. }) 30... Rd2 { Black threatens mate with ... Rc5-c1+. } { [%clk 0:19:51] } 31. Qxb7+ { [%clk 1:11:14] } (31. Qe1 Rcc2 32. a4 e4 33. g4 e3 $19 { and White can pack it in. }) 31... Kh6 { [%clk 0:19:37] } 32. Qb1 { [%clk 1:11:09] } 32... e4 { and Black wins similarly to the above variation. } { [%clk 0:17:49] } 33. g4 { [%clk 1:09:38] } 33... Rcc2 { [%clk 0:10:15] } 34. Qe1 { [%clk 1:07:27] } 34... Rg2+ { [%clk 0:09:24] } 35. Kf1 { [%clk 1:07:23] } 35... Rxh2 { [%clk 0:09:02] } 36. g5+ { [%clk 1:07:09] } 36... Kg7 { [%clk 0:08:41] } 37. Qa1+ { [%clk 1:07:08] } 37... Kg8 { [%clk 0:08:36] } 38. Kg1 { [%clk 1:06:59] } 38... Rcg2+ { 0-1 Black wins. } { [%clk 0:08:36] } 0-1