Correct answer: Nc11.N:c5?? (2.Qb3#/Rcb3#/N:d3#/N:a4#) 1...b:c5 2.Qb3#/Rcb3# 1...N:c5 2.Rcb3#/R:d3# but 1...N:c3! 1.N:d2?? (2.Qc1#/Qb1#
