Correct answer: Kg41.Ba2?? (2.Bd5#) 1...Nf4 2.Ne5# 1...Rc4 2.R:c4# 1...Rc5 2.R:c5# 1...Qb8+ 2.N:b8# but 1...Q:b6! 1.Kg4! (2.Qc7#)