Correct answer: Qc8-b8 1.Qc8-b8 ! danger: 2.Qb8-g3 # 2.Qb8-f4 # 1...Bc3-d2 2.Qb8-g3 # 1...g6-g5 2.Qb8-g3 # 1...Nb7-d6
