25 h3!! prevents Black from defending kingside with ... Qg4 Adams vs Topalov, 2006  (B84) Sicilian, Scheveningen, 42 moves, 1-0 15 h4! makes sure neither Black pieces nor pawns use g5-square Karpov vs Z Almasi, 2001  (E32) Nimzo-Indian, Classical, 38 moves, 1-0 17 c3!, 24 h4! stop defenses based on 17 ... Qb4 and 24 ... Qg5 Radjabov vs Karjakin, 2006  (B97) Sicilian, Najdorf, 33 moves, 1-0 36 c5-c6! takes away d7-square from the Black d5-rook, winning Aronian vs Van Wely, 2009  (D11) Queen's Gambit Declined Slav, 50 moves, 1/2-1/2 30 g2-g4! stops buildup against f2 by denying f5-sq to b5-rook Karjakin vs Aronian, 2009  (C84) Ruy Lopez, Closed, 34 moves, 1-0 5 games