Correct answer: Kd11...K:d3[a] 2.O-O-O# 1...c:d3/[б]/ 2.Ra4#[Б] 1...f3 2.Q:e3# 1...c5 2.Qd5# 1.Ra4[Б]? zz 1...c5 2.Qd5# 1...f3 2.Q:e3# but 1...K:d3[a]! 1.O-O-O? (2.
