Test your chess: Reitstein problem 163
White to play and win
DA Walker v L Mellech 1982; black has just played Be6…d7
Solution
Whilst 1 Bg8 is the natural move, it loses if white then captures the h7 pawn. 1…Be8 2 Bh7?? Bf7 and white is a piece down. However, 1 Bf7! and the threat of 2 Bg6! can't be prevented. If the Bg6 is taken, the h6 pawn promotes.
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allanbeardsworth 
Reblogged this on Chess Musings and commented:
A nice endgame study from a real chess game. I probably win this with time to consider my options but lose if I am forced to play by instinct.