Correct answer: Bc31...c5 2.Qd8# 1.Bb4+?? 1...c5 2.Qd8# but 1...Kd5! 1.Bc3! zz 1...Kd5/Kc5 2.Q:c6# 1...Ke7 2.Nf5# 1...c5 2.Qd8#
