Correct answer: Qf51...K:c5 2.Qc6# 1...Bb3/B:c2 2.Q:b5# 1...d:c5 2.Q:d5# 1.Qf7? (2.Q:d5#) 1...Nc3 2.R:b4#[Б] 1...Nc7 2.Ne3#[A] but 1...Re6