what if 3.Qxf6
1. Qh5+ Kg7 2. Rxh4 Rh8 3. Rg4+ Kf8 4. Rf1+ Ke7 5. Qf7# 1. Qh6+ Kg8 2. Rxh4 Kf7 3. Qh5+ Kg8 4. Rg4+ Qg5 5. Rxg5# 1. Qh6+ Kg8 2. Rxh4 Kf7 3. Qh5+ Ke7 4. Qg5+ Rf6 5. Qxf6+ Ke8 6. Rh8# 1. Qh6+ Kg8 2. Rxh4 Qe7 3. Rg4+ Kf7 4. Qh5# 1. Qh5+ Kg8 2. Rxh4 Kg7 3. Qh7#
there are lot of variation