Chess puzzle (Checkmate)
Moves: 1. e4 Nf6 2. Nc3 d5 3. e5 Nfd7 4. d4 e6 5. Bb5 a6 6. Ba4 b5 7. Bb3 c5 8. dxc5
Bxc5 9. Nf3 Nc6 10. Bf4 d4 11. Ne4 Bb4+ 12. c3 dxc3 13. bxc3 Be7 14. Nd6+ Bxd6
15. Qxd6 Bb7 16. O-O Qe7 17. Rad1 Rd8 18. Qc7 Nc5 19. Qb6 O-O 20. Be3 Nxb3 21.
axb3 Rxd1 22. Rxd1 Rb8 23. Bc5 Qe8 24. Bd6 Qd8 25. Qxd8+ Rxd8 26. c4 Ne7 27.
Nd4 Nf5 28. Nxf5 exf5 29. c5 Bc6 30. Ra1 Ra8 31. b4 Bd5 32. Rd1 Be6 33. Bc7 f6
34. exf6 gxf6 35. Rd6 Kf7 36. Ba5 Ke7 37. Rb6 Bd5 38. c6 Rc8 39. c7 Rxc7 40.
Rxa6 *
Position (FEN): 8/2r1k2p/R4p2/Bp1b1p2/1P6/8/5PPP/6K1 b - - 0 40
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 626
Best move: Rc1#