Correct answer: N:d41...Ka6 2.Qa8# 1.Kc5?? zz 1...Ka6 2.Qa8# 1...b6+/b5 2.a:b6# but 1...d3! 1.Ne5?? zz 1...Ka6 2.Qa8# 1...c5 2.Q:b7# 1...b6 2.N
