Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Accelerated_London_System
Moves: 1. d4 d5 2. Bf4 Nc6 3. Nf3 Bg4 4. Ne5 Nxe5 5. dxe5 e6 6. Qd3 Ne7 7. Qg3 Bf5 8.
Qb3 Rb8 9. e3 Nc6 10. Bd3 Bb4+ 11. Nc3 Bg4 12. O-O O-O 13. Bg5 *
Position (FEN): 1r1q1rk1/ppp2ppp/2n1p3/3pP1B1/1b4b1/1QNBP3/PPP2PPP/R4RK1 b - - 8 13
Black to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1235
Best move: Qxg5