Correct answer: Nb51. ... c:b6 2. Ne4# [A] 1. ... c:d6 2. Nd7# [Б] 1. Nd5? [2. Ne4#] [A] 1. ... c:d6 2. d4# [C] 1. ... K:d6 2. c5# [D] But 1. ... e:d5! 1. Nb5! [2. Nd7#] [Б]