O. Dehler
1922

White: Kc6, Bf4; pawn - e6
Black: Kc8, Ba5

Win

1 e7 Bd8 2 e8B/i 2...Bf6 3 Bc7 and mate next move.

i) 2 e8Q stalemate; 2e8N Bh4 is a draw.

This week's study is from Pawn Promotion by Harold van der
Heijden.