Correct answer: Rc61...Rc3/Rb8/Rd8/Nc7 2.N:c3# 1.Rc1?? (2.Ra1#/Qb1#) 1...Rc2/d:e4/B:h7 2.Ra1# but 1...R:c1! 1.Rc3?? (2.Bb3#/Qb1#
