Correct answer: K:b71...Qe2/Qe4/Qf5/Qg6/Qh7/Qb1/Qa4 2.N:c3# 1...Bc4 2.Qd6# 1...Nb6/Be1/b6 2.Re5# 1...Ne4 2.Rf5# 1...B:e3+ 2.N