Correct answer: e:f31...g3 2.N:f3# 1...Bb5/Bc6/Bd7/Be8 2.N:b3# 1...f:e2 2.N:e2# 1.B:f4?? (2.Q:b4#) 1...Bb5 2.N:b3# 1...Nc3 2.Qe3#/e3# 1