Chess puzzle (Checkmate)
Moves: 1. d4 Nf6 2. c4 g6 3. e3 Bg7 4. Nf3 d6 5. Nc3 O-O 6. Be2 Nc6 7. O-O e5 8. d5
Ne7 9. e4 Nd7 10. Bd3 f5 11. Re1 Nf6 12. exf5 gxf5 13. Bc2 Kh8 14. h4 Ng6 15.
g3 f4 16. Bxg6 hxg6 17. Qd3 Bf5 18. Ne4 Nxe4 19. Rxe4 Bh6 20. Ng5 Bxg5 21. hxg5
Kg7 22. gxf4 Bxe4 23. Qxe4 Rxf4 24. Bxf4 exf4 25. Qxf4 Qe7 26. Kg2 Rf8 27. Qe3
Qxe3 28. fxe3 Rf5 29. Re1 Rxg5+ 30. Kf3 Kf6 31. e4 Ke5 32. Re2 Rg1 33. b3 g5
34. Rf2 g4+ 35. Ke3 g3 *
Position (FEN): 8/ppp5/3p4/3Pk3/2P1P3/1P2K1p1/P4R2/6r1 w - - 0 36
White to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 439
Best move: Rf5#