Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Accelerated_London_System
Moves: 1. d4 d5 2. Bf4 e6 3. Nf3 Bd6 4. Bg3 Bxg3 5. hxg3 Nf6 6. e3 Nbd7 7. c3 c5 8.
Nbd2 cxd4 9. cxd4 a6 10. Bd3 b5 11. a3 Nb6 12. Qc2 g6 13. Bxg6 *
Position (FEN): r1bqk2r/5p1p/pn2pnB1/1p1p4/3P4/P3PNP1/1PQN1PP1/R3K2R b KQkq - 0 13
Black to move.
Themes:  Middlegame  
Puzzle rating: 1321
Best move: fxg6