Correct answer: B:b51...d3 2.Qc3# 1.Bd3?? (2.Qe1#) but 1...e:f6! 1.Bc4?? (2.Qe1#) 1...d3 2.Qc3# but 1...R:g7! 1.Qe1?? (2.Bf1#/Bd1#/Bd3#/Bc4#/<
