Puzzle of the Day 14 September 2025 |  Find the best move

1. Rc4 b2 2. Kc2 Nc3 3. Rxc3+ Ka2 4. Ra3+ Kxa3 5. Kb1 Kb4 6. Kxb2 a3+ 7. Ka2 Ka4 8. Kb1 Kb3