Chess puzzle (Checkmate)
Moves: 1. e4 d5 2. Nf3 dxe4 3. Ng5 Qd5 4. d4 exd3 5. Bxd3 Nf6 6. Nc3 Qxg2 7. Rf1 c6 8.
Bc4 e6 9. Be3 Nbd7 10. Qd3 Ne5 11. Qe2 Nxc4 12. Qxc4 Qg4 13. Qd3 Bb4 14. h3 Qh5
15. Rg1 O-O 16. a3 Ba5 17. b4 Bb6 18. Nce4 Nxe4 19. Qxe4 Bxe3 20. fxe3 h6 *
Position (FEN): r1b2rk1/pp3pp1/2p1p2p/6Nq/1P2Q3/P3P2P/2P5/R3K1R1 w Q - 0 21
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 456
Best move: Qh7#