Chess puzzle (Checkmate)
Moves: 1. e4 c6 2. d4 d5 3. e5 Bf5 4. g4 Bg6 5. f4 Be4 6. Nf3 e6 7. Be3 Bb4+ 8. c3 Be7
9. Nbd2 Bxf3 10. Nxf3 Nh6 11. Ng5 Bxg5 12. fxg5 Ng8 13. Bd3 Ne7 14. Qf3 Ng6 15.
h4 Nd7 16. h5 Ne7 17. Rf1 Rf8 18. Bxh7 g6 19. hxg6 fxg6 20. Qg2 Qb6 21. O-O-O
O-O-O 22. Qc2 Rxf1 23. Rxf1 Nf8 24. Rf7 Nxh7 25. Rxe7 Nf8 26. Rf7 Qa6 27. a3
Nd7 28. Re7 Nf8 29. Rf7 Nd7 30. Qxg6 Nb6 31. Qxe6+ Kb8 32. g6 Nc4 33. Bg5 Qb6
34. b4 Qa6 35. Kd1 Nb2+ 36. Ke1 Qd3 37. Kf2 Nd1+ 38. Kg2 Qe4+ 39. Rf3 Qe2+ 40.
Kg3 Qe1+ 41. Kg2 Rh8 42. Qd6+ Ka8 43. Rf8+ Rxf8 *
Position (FEN): k4r2/pp6/2pQ2P1/3pP1B1/1P1P2P1/P1P5/6K1/3nq3 w - - 0 44
White to move.
Themes:  Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 839
Best move: Qxf8#