Chess puzzle (Checkmate)
Opening: Kings_Indian_Defense, Kings_Indian_Defense_Other_variations
Moves: 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Bf4 O-O 5. Nf3 Nc6 6. e3 d6 7. Qc2 Nh5 8. Bg3
Nxg3 9. hxg3 f5 10. e4 e6 11. O-O-O Nb4 12. Qe2 a5 13. a3 Nc6 14. Nh4 Nxd4 15.
Rxd4 Bxd4 16. Nxg6 hxg6 17. Qd2 Qf6 18. Qh6 Bxc3 *
Position (FEN): r1b2rk1/1pp5/3ppqpQ/p4p2/2P1P3/P1b3P1/1P3PP1/2K2B1R w - - 0 19
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 1225
Best move: Qh7#