Chess puzzle (Checkmate)
Moves: 1. e4 c5 2. Nf3 Nc6 3. d4 d6 4. dxc5 Qa5+ 5. Nc3 Qxc5 6. Be3 Qa5 7. Qd5 Qd8 8.
O-O-O Nf6 9. Qg5 e5 10. Bb5 Qa5 11. Nd2 Bd7 12. Nc4 Qc7 13. f3 a6 14. Bxc6 Qxc6
15. Nb6 Rc8 16. Nbd5 b5 17. Nxf6+ gxf6 18. Qxf6 Rg8 19. Rd2 b4 20. Nd5 b3 21.
Bh6 Rg6 22. Qh4 Bxh6 *
Position (FEN): 2r1k3/3b1p1p/p1qp2rb/3Np3/4P2Q/1p3P2/PPPR2PP/2K4R w - - 0 23
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 997
Best move: Qe7#