79-Problem Solution (Mate in Two)

Solution: 1. Bg2! waiting
1. ... Ra7/a8/a5 2. Bxb6#
1. ... Sc8/e8/b7/f7/f5/c4/e4 2. Sxb5#
1. ... e4 2. Bf6#

Black is in a position of zugzwang, where every move leads to a mate. White must do a WAITING move.