Correct answer: Nd41...Nd3/Ba2 2.Q:e4#/R:e4# 1.f3?? (2.Nh3#/f:e4#) 1...Nd3 2.Q:e4#/R:e4#/Nh3#/Ne2# 1...Bd3/Ba7 2.Nh3# 1...Be5 2.f:e4