Puzzle of the Day 7 December 2016 |  Find the best move

1. Qxe6 Kc7 2. Qxd5 a6 3. Qb3 Qd4 4. Kc1 Qf4+ 5. Kb2 Nc5 6. Qc4 Qxc4 7. Bxc4