Chess puzzle (Checkmate)
Opening: Russian_Game, Russian_Game_Stafford_Gambit
Moves: 1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nc6 4. Nxc6 dxc6 5. Nc3 Bc5 6. h3 Qd6 7. Bc4 Bd7 8.
O-O h5 9. d3 Ng4 10. hxg4 hxg4 11. g3 *
Position (FEN): r3k2r/pppb1pp1/2pq4/2b5/2B1P1p1/2NP2P1/PPP2P2/R1BQ1RK1 b kq - 0 11
Black to move.
Themes: Kingside Attack, Pin Middlegame Mate in 1 
Puzzle rating: 1525
Best move: Qxg3#