Correct answer: Rc61. Rc6! waiting 1. ... N:c7 2. Bd8# 1. ... Ne7 2. B:e7# 1. ... Nb6 2. Rc5# 1. ... Nf6 2. B:f6# 1. ... Nb4 2. c:b4# 1. ... Nf4 2. B:f4#
