42 -
Europe Echecs, 1960
(Version)
14+8. (RV) Matt in 2 Zügen
[r3k1N1/p1p3pN/R3P2p/1pP5/B6P/QP6/1PPP4/n3K2RLösungp>
If black may castle, then his last move must've been b7-b5, because c6xb5 requires too many captures (Bc1 was captured on his home-square). So #2 with 1. cb6 Kd8/c6 2. Qf8#. If black may not castle, then #2 with 1. OO ~ 2. Rf8#.
Solution by Philippe Schnoebelen