Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Semi-Tarrasch_Defense
Moves: 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5 5. cxd5 exd5 6. Bg5 Nc6 7. e3 h6 8. Bh4
cxd4 9. Nxd4 Be7 10. Bd3 O-O 11. Bc2 a6 12. a3 Nd7 13. Bxe7 Qxe7 14. Qd3 Nxd4 *
Position (FEN): r1b2rk1/1p1nqpp1/p6p/3p4/3n4/P1NQP3/1PB2PPP/R3K2R w KQ - 0 15
White to move.
Themes:  Middlegame Mate in 1 
Puzzle rating: 935
Best move: Qh7#