Correct answer: Kb21. Rb5? 2. Qc3# (A) But 1. ... Ke5! (a) 1. Re6? 2. Qf2# (B) But 1. ... K:c5! (b) 1. Kb2! waiting 1. ... Ke5 (a) 2. Qc3# (A) 1.
