[Event "1000GM Winter GM/IM Invitational 2024"] [Site "https://lichess.org/study/sZBlQ3aL/RoH42XBh"] [Date "2024.01.15"] [Round "8"] [White "Pressman, Leif"] [Black "Mou, Iris"] [Result "0-1"] [WhiteElo "2258"] [BlackElo "2128"] [Annotator "Ostrovskiy, Aleksandr"] [Variant "From Position"] [ECO "?"] [Opening "?"] [FEN "rn2k2r/pp2nppb/2q1p2p/3pP3/2pP1P1N/P1P1B3/2P1B1PP/1R1Q1RK1 w kq - 0 14"] [SetUp "1"] [Source "https://lichess.org/study/sZBlQ3aL/RoH42XBh"] [Orientation "white"] { [#] } 14. g4!? { FM Leif embarks on an ambitious pawn storm. This is not illogical, as his pieces are well-positioned to push f5, but will the king be alright on g1? } 14... Nd7 15. f5 O-O-O { Castling out of danger. } 16. f6 gxf6 17. exf6 Ng8 18. g5 { White was pinning his hopes on this advance. If the f6-pawn survives, Black's g8-knight will be entombed. } 18... hxg5 19. Bxg5 Ngxf6!! { A fourth (!!!!) knight sacrifice from Iris! } 20. Bxf6 Rdg8+ { Black's rooks line up against the king and cause all sorts of tactical problems. } 21. Bg4 (21. Kh1 Be4+ 22. Bf3 Nxf6 $19) (21. Ng2 Be4 $19) 21... Bxc2! { Another beautiful shot to release the lateral power of the rooks on h8 and g8. } { [%cal Rh8h1,Rg8g1] } 22. Qxc2 Rxg4+ 23. Kh1 (23. Ng2 Nxf6 24. Rxf6 Qd6 $19 { [%cal Rd6h2] }) 23... Nxf6 24. Rxf6 Rgxh4 { Iris's combination has netted a two-pawn advantage and a decisive attack. } 25. Rf2 Qd6 26. a4 Qg3 27. Rbf1 Rh3 28. Rc1 Qe3 29. Rg2 Qf3 30. Kg1 Rxh2! 31. Rxh2 Rg8+ 32. Rg2 Rxg2+ 33. Qxg2 Qe3+ 34. Kh2 Qh6+ 35. Qh3 Qxc1 36. Qh8+ Kc7 37. Qf8 Qc2+ 38. Kg1 Qxa4 39. Qxf7+ Qd7 40. Qf8 b6 41. Qa8 a5 42. Kf2 Qc8 { 0-1 Black wins. } 0-1