Chess puzzle (Checkmate)
Moves: 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Bb5 Qb6 6. Bxc6+ bxc6 7. Nf3 Ba6 8. a4
Nh6 9. a5 Qc7 10. Bxh6 gxh6 11. Nfd2 cxd4 12. cxd4 Bb4 13. Nc3 Bxa5 14. Nb3
Bxc3+ 15. bxc3 Bc4 16. Rb1 O-O 17. Qg4+ Kh8 18. h4 Rab8 19. Qd1 Qb6 20. Nd2 Qa6
21. Rxb8 Rxb8 22. Rh3 Rg8 23. Nxc4 Qxc4 24. Qf3 Rg7 25. Qf6 Qa2 26. Rd3 Qb1+
27. Ke2 Qb7 28. Kf3 Kg8 *
Position (FEN): 6k1/pq3prp/2p1pQ1p/3pP3/3P3P/2PR1K2/5PP1/8 w - - 10 29
White to move.
Themes:  Endgame Back Rank Mate, Mate in 1 
Puzzle rating: 805
Best move: Qd8#