Puzzle of the Day 13 September 2017 |  Find the best move

1. h5 Rd8 2. Rxa7 d4 3. a4+ Kc4 4. cxd4 cxd4 5. Rc7+ Kd5 6. h6 d3 7. h7 Ng5+ 8. Ke3 Nxh7