Correct answer: Qf41. Q:d3? [2. Qc4#] 1. ... Kb4 2. Qc3# 1. ... d5 2. Q:a3# But 1. ... Kd5! 1. Qe3? waiting 1. ... Kb4 2. Ndc6# 1. ... d5 2. Qe7# B<