Correct answer: Qa71...c5 2.B:d5# 1...d3 2.Ne3# 1.K:c6?? (2.B:d5#) but 1...Na5+! 1.Qg4?? (2.Ne3#) but 1...b4! 1.Q:d4+?? 1...N:d4 2.Ne3# but 1...K
