Correct answer: Qe41. Qe4! waiting 1. ... N:a7 2. Q:b7# 1. ... Nb6/d6 2. N(:)d6# 1. ... b6 2. Qc6# 1. ... Ra4 2. Q:a4# 1. ... Qg5 2. R:g5# 1. ... Qf5 2. Q