Chess puzzle (Checkmate)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Levitsky_Attack
Moves: 1. d4 d5 2. Bg5 Bf5 3. Nc3 h6 4. Bh4 g5 5. Bg3 h5 6. h3 h4 7. Bh2 e6 8. e3 a6
9. a3 Qd7 10. Bd3 Bxd3 11. cxd3 Nc6 12. Qb3 O-O-O 13. Qc2 Nf6 14. b4 Na7 15.
Rb1 Nb5 16. Nxb5 Qxb5 17. a4 Qb6 18. a5 Qb5 *
Position (FEN): 2kr1b1r/1pp2p2/p3pn2/Pq1p2p1/1P1P3p/3PP2P/2Q2PPB/1R2K1NR w K - 1 19
White to move.
Themes: Queenside Attack Middlegame Mate in 1 
Puzzle rating: 513
Best move: Qxc7#