Correct answer: Rf21...N:d3/Nd7/Nb3/Nb7/Na4 2.e4# 1...Ne4 2.d:e4# 1...N:e6 2.Qe4# 1...Qa5/Qa4/Qa3/Qa7/Qb5/Qc4/Q:d3/Qb7/Qc8 2.
