Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. e3 Nd7 3. f4 Nb6 4. Bd3 e6 5. Nd2 c5 6. c3 c4 7. Bc2 Bd6 8. Ngf3
Nf6 9. O-O O-O 10. Ne5 Nfd7 11. Qe1 f6 12. Nxd7 Nxd7 13. Rf3 e5 14. fxe5 fxe5
15. Rxf8+ Nxf8 16. e4 exd4 17. cxd4 dxe4 18. Nxc4 Bc7 19. Qxe4 Ng6 20. Be3 Bd7
21. Rf1 Bc6 22. Qe6+ Kh8 23. Ne5 Nxe5 24. dxe5 Qe8 25. Qh3 g6 26. e6 Be5 27.
Rf7 Qg8 28. Bb3 Rd8 29. e7 Rd1+ 30. Kf2 Bb5 31. Rf8 *
Position (FEN): 5Rqk/pp2P2p/6p1/1b2b3/8/1B2B2Q/PP3KPP/3r4 b - - 4 31
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1542
Best move: Rf1#