Chess puzzle (Checkmate)
Moves: 1. e4 e5 2. d4 exd4 3. Nf3 Nf6 4. e5 Nd5 5. Bc4 c6 6. Bxd5 cxd5 7. Nxd4 Bc5 8.
Be3 Bxd4 9. Bxd4 d6 10. O-O dxe5 11. Bxe5 O-O 12. Nc3 Re8 13. Re1 Nc6 14. Nxd5
Nxe5 15. f4 Bg4 16. Qd4 Nc6 17. Qc5 Be6 18. c4 Rc8 19. Qf2 Bxd5 20. cxd5 Qxd5
21. Rad1 Rxe1+ 22. Rxe1 Qxa2 23. Qe2 Kf8 24. Qb5 Qa6 25. Qc5+ Kg8 26. Qf5 Rd8
27. h3 Qa5 28. Qe4 Qb4 29. Qe3 Kf8 30. Kh2 Qxb2 31. Re2 Qf6 32. Qa3+ Qe7 33.
Qf3 Qf6 34. Qe3 Ne7 35. Qa3 Kg8 36. Qxe7 Qxf4+ 37. Kh1 Rd1+ 38. Re1 Rxe1+ 39.
Qxe1 b5 *
Position (FEN): 6k1/p4ppp/8/1p6/5q2/7P/6P1/4Q2K w - - 0 40
White to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 1019
Best move: Qe8#