Correct answer: Qe11...b4 2.Q:a5# 1...Nd1 2.Q:a1# 1.Q:b2?? (2.Q:a1#) but 1...B:b2! 1.Qe1! (2.Q:a1#/Q:a5#) 1...Ka3/c3/b4/d2 2.Q:a1# 1...Nd1 2.<