Correct answer: Bc81...f4 2.Qe2# 1...c5 2.Bb7# 1.Bb5?? (2.B:c6#) 1...f4 2.Qe2# but 1...c:b5! 1.Bb7?? (2.B:c6#) but 1...f4! 1.Kh1?? zz 1...Kf2/f4 2.Qe