Correct answer: c31...e3 2.Bf3# 1.Bc3?? zz 1...e3 2.Bf3# 1...e5 2.Bf7# but 1...b4! 1.Bb2?? zz 1...e3 2.Bf3# 1...e5 2.Bf7# but 1...b4! 1.Ba1?? zz 1...e