Chess puzzle (Checkmate)
Moves: 1. e4 d5 2. exd5 Nf6 3. Nc3 Nxd5 4. Nxd5 Qxd5 5. a3 Nc6 6. Nf3 Bg4 7. h3 Qh5 8.
Be2 O-O-O 9. d3 e5 10. Be3 e4 11. Nd4 Bxe2 12. Nxe2 exd3 13. cxd3 Ne5 14. O-O
Nxd3 15. Qc2 Ne5 16. Bxa7 b6 17. Bxb6 Bd6 18. Rac1 Rd7 19. Bc5 Qh6 20. Bxd6
Qxd6 21. Nc3 Qb6 22. Rfd1 Rhd8 23. Qf5 Qa5 24. Rxd7 Nf3+ 25. Qxf3 Rxd7 26. b4
Qxa3 27. Qe4 Qxc1+ 28. Kh2 Qxc3 *
Position (FEN): 2k5/2pr1ppp/8/8/1P2Q3/2q4P/5PPK/8 w - - 0 29
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1172
Best move: Qa8#