Correct answer: Nd61. ... Bb5 2. Qf8# (A) 1. ... c6 2. Qb6# (B) 1. ... Bc4 2. Bd4# (C) 1. Nd6! [2. Q:c7#] 1. ... Bb5 2. Nb7# (D) 1. ... c6 2. Bd4# (C)
