Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nc3 Nc6 3. Bb5 e5 4. Nf3 d6 5. d3 Bd7 6. O-O a6 7. Ba4 b5 8. Bb3
Be7 9. Bd5 Qb6 10. Bg5 Nf6 11. a3 Nxd5 12. Nxd5 Qd8 13. Bxe7 Nxe7 14. c4 Nxd5
15. cxd5 Bg4 16. b4 Bxf3 17. Qxf3 cxb4 18. axb4 O-O 19. Rfc1 Qd7 20. Rc6 Rfc8
21. Rac1 a5 22. bxa5 Rxc6 23. dxc6 Qc7 24. Qf5 Rc8 25. Qd7 Qxd7 26. cxd7 *
Position (FEN): 2r3k1/3P1ppp/3p4/Pp2p3/4P3/3P4/5PPP/2R3K1 b - - 0 26
Black to move.
Themes: Hanging Piece Endgame, Rook Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 400
Best move: Rxc1#