Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. d3 Bc5 3. a3 a6 4. b4 Ba7 5. Bb2 d6 6. Nf3 Bg4 7. h3 Bh5 8. Be2 Nf6
9. Nbd2 O-O 10. g4 Bg6 11. g5 Nh5 12. h4 Nf4 13. Bf1 Bh5 14. Qc1 f6 15. c4 Nd7
16. Qc2 Bd4 17. Bxd4 Bxf3 18. Nxf3 exd4 19. c5 dxc5 20. bxc5 Ne5 21. Qb3+ Kh8
22. Nxe5 fxe5 23. Qxb7 Qe7 24. c6 Rfb8 25. Qxb8+ Rxb8 26. Be2 Nxe2 27. Kxe2
Rb2+ 28. Kf1 Qf7 29. Rh2 Qb3 30. Kg2 Qxd3 31. Rh3 Qxe4+ 32. Rf3 Kg8 33. Kg3
Qxc6 34. Re1 Qd6 35. Re4 g6 36. Kg4 c5 37. Rf6 Qd5 38. f3 d3 39. Rxa6 d2 40.
Rea4 Qd7+ 41. Kg3 Qxa4 42. Rxa4 d1=Q 43. Ra8+ Kf7 44. Ra7+ Ke6 45. Ra6+ Kf5 *
Position (FEN): 8/7p/R5p1/2p1pkP1/7P/P4PK1/1r6/3q4 w - - 6 46
White to move.
Themes:  Endgame, Queen and Rook Endgame Mate in 1 
Puzzle rating: 889
Best move: Rf6#