Chess puzzle (Checkmate)
Moves: 1. d4 d5 2. Bf4 c5 3. Nf3 Nc6 4. c3 Bf5 5. e3 e6 6. Bb5 Ne7 7. Qa4 a6 8. Bxc6+
Nxc6 9. Ne5 Qb6 10. dxc5 Qxb2 11. Nxc6 bxc6 12. Qxc6+ Ke7 13. Bd6+ Kf6 14. Qxa8
Qc1+ 15. Ke2 Qxh1 16. Bxf8 Qc1 17. Qb8 Rxf8 18. Qxf8 Qb2+ 19. Kf3 Qxa1 20. Qd8+
Kg6 21. h4 Qxb1 *
Position (FEN): 3Q4/5ppp/p3p1k1/2Pp1b2/7P/2P1PK2/P4PP1/1q6 w - - 0 22
White to move.
Themes:  Endgame Mate in 1 
Puzzle rating: 878
Best move: Qg5#