Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Accelerated_London_System
Moves: 1. d4 d5 2. Bf4 Nf6 3. e3 c6 4. Bd3 Qb6 5. b3 Bg4 6. f3 Bh5 7. Nc3 e5 8. Bxe5
Bb4 9. Ne2 Nbd7 10. Bf4 c5 11. O-O cxd4 12. Nxd4 *
Position (FEN): r3k2r/pp1n1ppp/1q3n2/3p3b/1b1N1B2/1PNBPP2/P1P3PP/R2Q1RK1 b kq - 0 12
Black to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 851
Best move: Bxc3