Correct answer: Rg21.R:f4?? (2.Kf2#/Rd4#/Ne1#) 1...B:c2 2.Kf2# 1...b:c4 2.Rd4# 1...N:b3 2.Ne1# but 1...N:c2! 1.Kf2+?? 1...f3 2.R:f3#/R