Correct answer: Qe21.Qa5+?? 1...K:c6 2.Qb5# 1...Nc5 2.Q:c5#/R:c5# but 1...Nb5! 1.Qb5+?? 1...Nc5 2.Q:c5#/R:c5# but 1...N:b5! 1.Qc4+