By C.H. Wheeler, from the Dubuque Chess Journal, December 1877. “White to play and compel self-mate in two moves” — that is, White must force Black to checkmate him in two moves.
I don’t have Wheeler’s solution, but I believe this is right:
As things stand, only Black’s a4 bishop can move. With 1. Rd7, White can limit that bishop to three squares, from each of which a queen sacrifice will force it to the mating diagonal b1-h7:
1. Rd7 Bb5 2. Qd3+ Bxd3#
1. Rd7 Bc6 2. Qe4+ Bxe4#
1. Rd7 Bxd7 2. Qf5+ Bxf5#
August 31, 2012 | Puzzles
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