Chess puzzle (Checkmate)
Moves: 1. e4 d5 2. exd5 Nf6 3. Nc3 Nxd5 4. Nxd5 Qxd5 5. d4 Nc6 6. Nf3 Bg4 7. c3 O-O-O
8. Be2 Qa5 9. h3 Bxf3 10. Bxf3 Nxd4 11. O-O Nxf3+ 12. Qxf3 e6 13. Bf4 Bd6 14.
Rad1 Bxf4 15. Rxd8+ Rxd8 16. Qxf4 Rd7 17. Qe4 g6 18. a4 Qb6 19. b4 Qc6 20. Qe5
h5 21. Qh8+ Rd8 22. Qf6 Rd7 23. b5 Qc4 24. Ra1 Qb3 25. Qf3 Qc4 26. Qe3 b6 27.
Qf3 f5 *
Position (FEN): 2k5/p1pr4/1p2p1p1/1P3p1p/P1q5/2P2Q1P/5PP1/R5K1 w - - 0 28
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 1162
Best move: Qa8#