Correct answer: Qa11...Qb2/Qb3/Q:b4/Qa1/Qc1/Qd1/Qe1/Qf1/Qg1/Qh1/Qg6/Qa2 2.Ng6#[A] 1...f2 2.Ng2# 1.d3? (2.Ng6#[A]) but 1...Q:d3!