Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. e3 g6 3. Bd3 Bg7 4. f4 d5 5. Nf3 c5 6. c3 c4 7. Bc2 O-O 8. O-O Nc6
9. Nbd2 e6 10. Ne5 Ne7 11. a4 Nf5 12. Qe2 Nd7 13. e4 Nd6 14. f5 exf5 15. exf5
Nxe5 16. dxe5 Nxf5 17. Nf3 Re8 18. Bf4 Ne7 19. Bg5 Qb6+ 20. Kh1 Nc6 21. Qf2 Rf8
22. Qd2 Nxe5 23. Nxe5 Bxe5 24. Qxd5 Qd6 25. Qxc4 Bxh2 26. Bh6 Be6 27. Bxf8 Bxc4
28. Bxd6 Bxd6 29. Rfd1 Be5 30. Re1 Bg7 31. Re4 Bd5 32. Re7 a6 33. Rd1 Bc6 34.
Be4 Bf6 35. Rc7 Bxe4 36. Rf1 Bg7 37. Rfxf7 Bh6 38. Rxh7 Rf8 39. Rxh6 Rf2 40.
Rh2 *
Position (FEN): 6k1/1pR5/p5p1/8/P3b3/2P5/1P3rPR/7K b - - 2 40
Black to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 676
Best move: Rf1#