Chess puzzle (Checkmate)
Opening: Queens_Indian_Defense, Queens_Indian_Defense_Other_variations
Moves: 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nbd2 Ba6 5. Qc2 Be7 6. e4 O-O 7. Bd3 c5 8. e5
Ne8 9. Bxh7+ Kh8 10. Be4 Nc6 11. d5 Nb4 12. Qd1 exd5 13. cxd5 f5 14. exf6 Nxf6
15. Ng5 Qe8 16. Qf3 Nxe4 17. Qh3+ Kg8 *
Position (FEN): r3qrk1/p2pb1p1/bp6/2pP2N1/1n2n3/7Q/PP1N1PPP/R1B1K2R w KQ - 2 18
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 859
Best move: Qh7#