Chess puzzle (Checkmate)
Opening: Queens_Gambit_Accepted, Queens_Gambit_Accepted_Other_variations
Moves: 1. d4 d5 2. c4 dxc4 3. Nc3 b5 4. Nxb5 Ba6 5. Nc3 Nf6 6. e4 e6 7. a3 Be7 8. Nf3
h5 9. h3 h4 10. Be3 Bb7 11. e5 Nd5 12. Bxc4 Nxc3 13. bxc3 Nc6 14. O-O Na5 15.
Bb5+ c6 16. Ba4 O-O 17. Bc2 Nc4 18. Qd3 Nxe3 *
Position (FEN): r2q1rk1/pb2bpp1/2p1p3/4P3/3P3p/P1PQnN1P/2B2PP1/R4RK1 w - - 0 19
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 959
Best move: Qh7#