25 - Bb7xe4! White d3-pawn must advance to d4 to meet - Bd6-e5+ Movsesian vs Kasparov, 2000  (B90) Sicilian, Najdorf, 32 moves, 0-1 16 h5-h6! Black g7-pawn committed to ... g7-g6 to block h5-e8 Kasparov vs Karpov, 2001  (B12) Caro-Kann Defense, 31 moves, 1-0 19 Bc6xf3! White g2-pawn must advance to g3-sq to block h4-e1 E Magerramov vs Kasparov, 1977  (D58) Queen's Gambit Declined, Tartakower (Makagonov-Bondarevsky) Syst, 30 moves, 0-1 16 .. Nb4-d3+!! White c2-pawn must advance to c3 to block a5-e1 T W Barnes vs Morphy, 1858  (C41) Philidor Defense, 24 moves, 0-1