Chess puzzle (Checkmate)
Moves: 1. Nf3 Nf6 2. c4 e6 3. g3 Bc5 4. Bg2 O-O 5. O-O d5 6. d4 Be7 7. b3 dxc4 8. bxc4
c5 9. e3 Nc6 10. Bb2 Qb6 11. Qe2 Rd8 12. Rd1 cxd4 13. Nxd4 Bd7 14. Nc3 Rac8 15.
Rab1 a6 16. Nxc6 Bxc6 17. Ba3 Qc7 18. Bxe7 Qxe7 19. Rxd8+ Rxd8 20. Bxc6 bxc6
21. Rd1 Rd7 22. Rd2 Qb4 23. Rxd7 Nxd7 24. Qd2 Qe7 25. Ne4 Kf8 26. Nd6 Nc5 27.
Qd4 Nb7 28. Nxb7 Qxb7 *
Position (FEN): 5k2/1q3ppp/p1p1p3/8/2PQ4/4P1P1/P4P1P/6K1 w - - 0 29
White to move.
Themes:  Endgame, Queen Endgame Mate in 1 
Puzzle rating: 1150
Best move: Qd8#