Chess puzzle (Checkmate)
Opening: English_Defense, English_Defense_Other_variations
Moves: 1. d4 e6 2. c4 b6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 Bb7 6. Nf3 f5 7. Bg5 Nf6 8. e3
O-O 9. Be2 d6 10. O-O Nbd7 11. h3 Qe8 12. Nd2 Qg6 13. Bxf6 *
Position (FEN): r4rk1/pbpn2pp/1p1ppBq1/5p2/2PP4/P1P1P2P/3NBPP1/R2Q1RK1 b - - 0 13
Black to move.
Themes: Kingside Attack Middlegame Mate in 1 
Puzzle rating: 1268
Best move: Qxg2#