Chess puzzle (Checkmate)
Opening: Queens_Gambit_Declined, Queens_Gambit_Declined_Pseudo-Tarrasch_Variation
Moves: 1. d4 e6 2. c4 d5 3. Nc3 Nf6 4. Bg5 c5 5. cxd5 cxd4 6. Qa4+ Bd7 7. Qxd4 Be7 8.
d6 Bf8 9. e4 Nc6 10. Qd2 h6 11. Bh4 Nxe4 12. Qf4 Nf6 13. Bg3 e5 14. Qd2 Qb8 15.
Nb5 Ne4 16. Qd3 Nxd6 17. O-O-O Nxb5 *
Position (FEN): rq2kb1r/pp1b1pp1/2n4p/1n2p3/8/3Q2B1/PP3PPP/2KR1BNR w kq - 0 18
White to move.
Themes:  Opening Mate in 1 
Puzzle rating: 543
Best move: Qxd7#