1...c3 2.Nc5#
1.Kc5?? zz
1...Kxa4 2.Rxa3#
but 1...c3!
1.Rc2?? (2.Rc3#)
but 1...Kxc2!
1.Rd2?? (2.Rb1#)
but 1...a2!
1.Re2?? (2.Rb1#)
but 1...a2!
1.Rf2?? (2.Rb1#)
but 1...a2!
1.Rg2?? (2.Rb1#)
but 1...a2!
1.Rh2?? (2.Rb1#)
but 1...a2!
1.Rb1+!
1...Kxa2 2.Nc3#