Chess puzzle (Checkmate)
Moves: 1. d4 e6 2. Bf4 c5 3. c3 Nc6 4. e3 cxd4 5. exd4 Nf6 6. Nd2 Nd5 7. Bg3 Be7 8.
Bd3 O-O 9. Qc2 Nf6 10. Ngf3 b6 11. Ne5 Bb7 12. O-O-O a5 13. a3 a4 14. Bb5 Na7
15. Bxa4 b5 16. Bb3 Qa5 17. Ndf3 b4 18. Nc4 Qh5 19. axb4 Be4 20. Qe2 Nb5 21.
Na5 Qh6+ 22. Nd2 Nd6 23. Bxd6 Bxd6 24. f3 Bg6 25. h4 Rfc8 26. g4 Qf4 27. h5
Bxb4 28. hxg6 fxg6 29. Nc4 Ra1+ 30. Kc2 Rxd1 31. Rxd1 Be7 32. Ne5 Bb4 33. Nd3
Qxd4 34. Nxb4 Qxb4 35. Bxe6+ Kh8 36. Bxd7 Nxd7 37. Qe6 Qa4+ 38. Nb3 Rd8 39.
Rxd7 Rxd7 *
Position (FEN): 7k/3r2pp/4Q1p1/8/q5P1/1NP2P2/1PK5/8 w - - 0 40
White to move.
Themes:  Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 941
Best move: Qe8#