Chess puzzle (Checkmate)
Moves: 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Bd3 Na6 7. O-O c5 8. d5 c4
9. Bxc4 b5 10. Bd3 b4 11. Ne2 Qb6+ 12. Kh1 Nc5 13. Ng3 a5 14. Qe2 a4 15. Be3 a3
16. b3 Ng4 17. Bd4 Bxd4 18. Nxd4 Nxd3 19. Qxd3 Ba6 20. Qd2 Bxf1 21. Rxf1 Qc5
22. h3 Nf6 23. Nc6 Rfe8 24. Qxb4 Qxb4 25. Nxb4 e6 26. dxe6 Rxe6 27. f5 gxf5 28.
exf5 Re3 29. Kh2 Rc8 30. c4 Ne4 31. Nxe4 Rxe4 32. Rd1 Rb8 33. Nc6 Rbe8 34. Rxd6
Re2 35. Nb4 Rb2 36. c5 Ree2 37. Kg3 Rxg2+ 38. Kf4 Kf8 39. f6 Rgf2+ 40. Kg5 Rg2+
41. Kh4 Rbe2 42. c6 Re4+ 43. Kh5 Rxb4 *
Position (FEN): 5k2/5p1p/2PR1P2/7K/1r6/pP5P/P5r1/8 w - - 0 44
White to move.
Themes:  Endgame, Rook Endgame Mate in 1 
Puzzle rating: 440
Best move: Rd8#