Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. e3 Nf6 3. c4 e6 4. a3 c5 5. dxc5 Bxc5 6. b4 Be7 7. Bb2 O-O 8. Nd2
a5 9. c5 Nc6 10. b5 Na7 11. Bd4 Bd7 12. a4 Rc8 13. c6 Nxc6 14. bxc6 Bxc6 15.
Ngf3 Bb4 16. Bd3 Qd7 17. O-O Ne8 18. Ne5 Qc7 19. Nxc6 bxc6 20. Nf3 Bd6 21. Rc1
e5 22. Qc2 c5 23. Bxh7+ Kh8 24. Qf5 Nf6 25. Nxe5 Nxh7 26. Nf3 Qa7 27. Qh3 Kg8
28. Qg4 g6 29. Ba1 c4 30. Qd4 Qxd4 31. Bxd4 f5 32. Ne5 Nf6 33. Nxg6 Rf7 34. Ne5
Rb7 35. f4 Kh7 36. Rf3 Rb2 37. Nxc4 Re2 38. Bxf6 Bc5 39. Ne5 Bxe3+ 40. Rxe3 *
Position (FEN): 2r5/7k/5B2/p2pNp2/P4P2/4R3/4r1PP/2R3K1 b - - 0 40
Black to move.
Themes: Hanging Piece Endgame Mate in 1 
Puzzle rating: 856
Best move: Rxc1#