Correct answer: Rc41...a4 2.Nb4# 1...Nh3/Nh7/Nf7/Ne4+ 2.Qe4# 1...Nf3 2.Bc4#/Qe4# 1...Rc2/Rc1/Rc4 2.Be4#/Bc4#/Ne3# 1...Rc5/R
