Chess puzzle (Checkmate)
Opening: Center_Game, Center_Game_Paulsen_Attack_Variation
Moves: 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 4. Qe3 b6 5. Bd2 Bc5 6. Qg3 Qf6 7. Nc3 Bb7 8.
Nb5 O-O-O *
Position (FEN): 2kr2nr/pbpp1ppp/1pn2q2/1Nb5/4P3/6Q1/PPPB1PPP/R3KBNR w KQ - 8 9
White to move.
Themes: Queenside Attack Opening Mate in 1 
Puzzle rating: 1051
Best move: Qxc7#