[Event "Carlsbad"] [Site "?"] [Round "0"] [White "Spielmann"] [Black "Grunfeld"] [Result "1-0"] [FEN "r4rk1/1q2nppp/p1b1p3/1p5P/3BP3/1BP1Q1P1/P4P2/R2R2K1 w - - 0 1"] {The Bishop sacrifice at g7 in its purist form} 1. Bxg7 Kxg7 2. Qg5+ Ng6 (2... Kh8 3. Qf6+ Kg8 4. h6) 3. h6+ Kg8 4. Qf6 {h6 pawn wedge} 1-0