Tactics (14)

White to move in Wulfken - Vasiljev (Cologne 2009).

Solution (diff. ●○○○○): 27.h4+! (simply winning a pawn after 27.- Kh6 28.Rxf4) Interestingly Black did not want to play this move and captured 27.- Kxh4? which loses a piece after 28.g3+! Kh5 (2.- Kg5 3.gxf4+) 29.g4+ (1-0, 50.).