Chess puzzle (Checkmate)
Moves: 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Nf3 a6 5. Bd3 Nc6 6. Be3 Bg4 7. O-O Nf6 8. h3
Bh5 9. Be2 Bg6 10. Nc3 e6 11. Ne5 Nxe5 12. dxe5 Nd7 13. f4 Bc5 14. Bxc5 Nxc5
15. b4 Ne4 16. Nxe4 Bxe4 17. c4 Qb6+ 18. c5 Qxb4 19. Rb1 Qxc5+ 20. Kh2 Qe7 21.
Rb6 O-O 22. Qb3 Rab8 23. Bxa6 d4 24. Bc4 Qc5 25. Bxe6 fxe6 26. Qxe6+ Kh8 27.
Rd6 Rbe8 28. Qg4 Bf5 29. Qh4 d3 30. Rd1 Qe3 31. Re1 Qd2 32. e6 Bg6 33. e7 Qxf4+
34. Qxf4 Rxf4 35. Kg3 Rc4 36. h4 Rc3 37. Kh2 d2 38. Rxd2 Rc7 39. Rd8 Rc2 40.
Kh3 Rxa2 41. g4 Ra8 42. Rxa8 Rxa8 43. Rf1 Be8 *
Position (FEN): r3b2k/1p2P1pp/8/8/6PP/7K/8/5R2 w - - 2 44
White to move.
Themes:  Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 560
Best move: Rf8#