123-Chess Problem Solution.

Solution: 1. Sd8-b7! waiting
 1. ... Sc8 ad lib 2. Sb7(x)d6#
 1. ... Sc5 ad lib 2. d3-d4#
 1. ... Sc5-e4 2. d3xe4#
 1. ... Sc5xd3 2. Bc2xd3#