Correct answer: Na41.Qd6?? (2.Bd3#/Bd7#/a4#) but 1...a4! 1.Qc5+?? 1...Ka6 2.Bc8# but 1...K:c5! 1.Na4! zz 1...Kc4 2.Qc5# 1...Kc6 2.Qd7#
