Originally posted by David1131. Bh3
[fen]2B4R/7P/3P1k1K/4N2P/5p2/5RQ1/PB3P1P/q1N5 w[/fen]
Selfmate in 3 moves
(White starts and forces Black to mate White on Black's 3rd move)
1... Qxc1 2. Rxf4+ Qxf4+ 3. Qg5+ Qxg5#
1... Qb1 2. Rxf4+ Qf5 3. Qb3 Qxf4#
1... Qxb2 2. Nd7+ Kf7 3. Qg7+ Qxg7#
1... Qxa2 2. Rf8+ Qf7 3. Bg4 Qxf8#