[White "       TAL - RANTANEN, TALLINN, 1979   "]   [Black "White to play and win"]   [Result "1-0"]   [FEN "1rq1rb1k/5R1p/p2p1p2/2p1p3/2P1P1b1/1P2B1Q1/P5PP/3R2K1 w - - 0 1"]   {In the position above, White has a winning attack, starting with:}   1 Qh4! Bg7   {The only sensible defence.} ( 1... h5 2 Qxf6+ { is easily won.})   2 Bh6!   2... Bxd1   {Nothing else is better.}   3 Bxg7+ Kg8   {But now it seems that White has overstreched himself. He is material down and he should find something decisive. But what is the move?   Utilizing both g7 and h7 simultaneously helps:}   4 Bh8!!   {A key move of the whole problem. Mate on h7 is threatened. If Black takes the rook, than he gets mated on g7 instead.}   4... Kxf7 5 Qxf6+ Kg8 6 Qg7 mate