Correct answer: Bc21. Bc2! [2. Q:d4#] 1. ... Rc8/:d8, Bb6 2. Qb5# 1. ... Be3 2. N:e3# 1. ... Bf2+ 2. N:f2# 1. ... Bg1 2. Ne3/f2# 1. ... Bc3+ 2. b:c3# 1.