Chess puzzle (Checkmate)
Moves: 1. d4 g6 2. e4 Bg7 3. Nf3 d6 4. Be3 Nf6 5. Bd3 O-O 6. c4 Nc6 7. O-O Nb4 8. a3
Nxd3 9. Qxd3 Re8 10. Nc3 e5 11. d5 Nh5 12. Bg5 f6 13. Bh4 g5 14. Bg3 Nxg3 15.
hxg3 Kf7 16. Qe2 h5 17. Nh2 Rh8 18. g4 hxg4 19. Nxg4 Qg8 20. Qf3 Qh7 21. g3
Bxg4 22. Qxg4 *
Position (FEN): r6r/ppp2kbq/3p1p2/3Pp1p1/2P1P1Q1/P1N3P1/1P3P2/R4RK1 b - - 0 22
Black to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 839
Best move: Qh1#