Correct answer: Ke11...Nb4/Qb6 2.d4# 1...Nc3/Qc3 2.d:c3# 1...c3+ 2.d3# 1.Bb3+?? 1...K:b1 2.Re1# but 1...c:b3+! 1.Qe2?? (2.Qd1#) 1...Nc3 2.d:c3# 1...c
