Correct answer: Nge41. Nge4! [2. e6] 1. ... Bf4 2. N:c3 [3. Nb5, Ncd5#] 2. ... b5 3. Ncd5# 2. ... B:e5, h1=Q/B 3. Nb5# 1. ... b5 2. Nd5+ 2. ... Kd7 3