Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Nf3 c5 3. c3 Nc6 4. Bf4 Bg4 5. e3 a6 6. Nbd2 e6 7. Bd3 Nf6 8. Qe2
Bd6 9. Bg3 O-O 10. e4 dxe4 11. Nxe4 Nxe4 12. Qxe4 Bf5 13. Qe3 Bxd3 14. Qxd3
cxd4 15. Nxd4 Nxd4 16. Qxd4 Bxg3 17. hxg3 Qxd4 18. cxd4 Rfd8 19. Rd1 Rd5 20.
Ke2 Rad8 21. Ke3 e5 22. Ke4 exd4 23. Rd3 f5+ 24. Kf4 g6 25. Rhd1 Kf7 26. g4
fxg4 27. Kxg4 Kf6 28. Kf4 g5+ 29. Kf3 h5 30. R1d2 Kf5 31. Ke2 g4 32. f3 g3 33.
Rd1 h4 34. R3d2 Kf4 35. Kd3 b5 36. Rh1 Rh8 37. Re2 Re5 38. Rc2 h3 39. gxh3 Kxf3
*
Position (FEN): 7r/8/p7/1p2r3/3p4/3K1kpP/PPR5/7R w - - 0 40
White to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 818
Best move: Rf1#