[Event "2025 National K-12 Chess Championship"] [Site "Spokane, WI USA, United State"] [Date "2025.12.14"] [Round "7.5"] [White "Zhao, Erick"] [Black "Mou, Iris"] [Result "1-0"] [WhiteElo "2518"] [WhiteTeam "USA"] [BlackElo "2293"] [BlackTeam "USA"] [Annotator "Foisor,Sabina"] [Variant "Standard"] [ECO "?"] [Opening "?"] [StudyName "2025 National K-12 Grade Championships, Pt. 2"] [ChapterName "Zhao, Erick - Mou, Iris"] [ChapterURL "https://lichess.org/study/NnKpzTbl/XbunLVCZ"] [FEN "3rrbk1/1pnq1p1p/2p2pp1/p6P/2PP2Q1/P3B3/1PB2PP1/3R1RK1 w - - 0 21"] [SetUp "1"] [Orientation "white"] 21. Qf3 { White kept the queens on the board a while longer, but the progress can only happen with d4-d5! } (21. Qxd7 { this could have led to a faster win: } 21... Rxd7 22. d5 cxd5 23. Ba4) 21... Bg7 22. d5! cxd5 23. cxd5 Re5 24. h6 Bh8 25. Bf4 Rh5 26. Rfe1 f5 27. Qe3 Ne8 28. d6 { Cementing the advanced d-pawn. } 28... Bf6 29. Qb6 Ra8 30. Bd3 Qd8 31. Qxd8 Rxd8 32. d7 { The d-pawn becomes the hero! } 32... Nd6 33. Bxd6 Rxh6 34. Re8+ Kg7 35. Bf8+ Kg8 36. Bxh6+ { 1-0 White wins. } 1-0