Correct answer: Rh61. Nf2? waiting 1. ... f3 [a] 2. N:f3 [Б] # 1. ... g3 /[б]/ 2. B:g3 [A] # But 1. ... B:g6! 1. Rh6! waiting 1. ... f3 [a] 2. Bg3 [A] # 1. ... g3 /[б]/ 2. N