Correct answer: Qa61...Q:b7 2.Qa4# 1...Q:a8 2.b:a8Q#/b:a8B# 1...Q:c8 2.b:c8N# 1...Qc7/Qa7 2.b8N# 1...Q:d6 2.b8Q#/b8R#/b8B#/b8N#
