Chess puzzle (Checkmate)
Moves: 1. f4 d5 2. d3 c5 3. Be3 e6 4. Bf2 Nc6 5. Nd2 Bd6 6. e3 d4 7. Be2 dxe3 8. Bxe3
Nd4 9. Bh5 Qh4+ 10. g3 Nxc2+ 11. Qxc2 Qxh5 12. Ngf3 Nf6 13. O-O-O Bd7 14. Nc4
Qxf3 15. Nxd6+ Ke7 16. Rhf1 Qxe3+ 17. Rd2 Kxd6 18. d4 cxd4 19. Rd1 Ne4 20. Kb1
Nxd2+ 21. Rxd2 Rac8 22. Qd1 Ba4 23. Rxd4+ Ke7 24. Rxa4 Rhd8 25. Qf1 Qd2 26.
Rxa7 Qc2+ 27. Ka1 Qc1+ 28. Qxc1 *
Position (FEN): 2rr4/Rp2kppp/4p3/8/5P2/6P1/PP5P/K1Q5 b - - 0 28
Black to move.
Themes:  Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 600
Best move: Rxc1#