Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. Bf4 c5 3. c3 Qb6 4. Qb3 Qxb3 5. axb3 cxd4 6. cxd4 Nc6 7. e3 e6 8.
Nf3 Nd5 9. Bg3 Bb4+ 10. Nbd2 b6 11. Bc4 Bxd2+ 12. Nxd2 Ncb4 13. O-O a6 14. Bd6
b5 15. Bxb5 Bb7 16. Rfc1 f5 17. f3 Nc6 18. Bxc6 Bxc6 19. Nc4 Kf7 20. Ne5+ Kf6
21. Nxc6 dxc6 22. Rxc6 Nxe3 23. Be5+ Kg6 24. Rxe6+ Kf7 25. Rexa6 Rxa6 26. Rxa6
Rc8 27. Ra7+ Ke6 28. Rxg7 Rc2 29. Rxh7 Rxg2+ 30. Kh1 Rf2 31. f4 *
Position (FEN): 8/7R/4k3/4Bp2/3P1P2/1P2n3/1P3r1P/7K b - - 0 31
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 997
Best move: Rf1#