Solution:
1. Sc6! waiting
1. ... Qd4 2. Sxd4, Se1#
1. ... Qc4/a4/g4/xc6 2. Se3/e1#
1. ... Qb4/d5 2. Sxb4, Se3/e1#
1. ... Qe5 2. Sb4#
1. ... Qe6/e8/e2/xg2 2. Sb4/d4#
1. ... Qe7 2. Sd4#
1. ... Qf4 2. Se1#
1. ... Qh4 2. Se3#
1. ... Qe3 2. Sb4, Sxe3#
1. ... Qe1/f3 2. Sb4/d4, Sxe1#
1. ... Qe4~ 2. Sb4/d4, Se3/e1#