Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Bg5 h6 7. Bxf6 Qxf6 8.
Qd3 Nxd4 9. O-O-O Bxc3 10. Qxc3 Qf4+ 11. Kb1 Ne6 12. g3 Qxe4 13. Rg1 d6 14. Bh3
O-O 15. Bxe6 fxe6 16. Qxc7 e5 17. Qxd6 Bf5 18. Rc1 Rfd8 19. Qa3 Rac8 20. f3 Qc6
21. Qb3+ Kh8 22. g4 Be6 23. Qa3 Rd2 24. g5 Rxc2 25. Rxc2 Qxc2+ 26. Ka1 Qc1+ 27.
Rxc1 *
Position (FEN): 2r4k/pp4p1/4b2p/4p1P1/8/Q4P2/PP5P/K1R5 b - - 0 27
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 635
Best move: Rxc1#