Chess puzzle (Crushing)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Other_variations
Moves: 1. d4 c6 2. Bf4 d5 3. Nf3 Bg4 4. Nbd2 e6 5. h3 Bh5 6. e3 c5 7. c3 Nc6 8. Qe2
Nf6 9. O-O-O a5 10. g4 Bg6 11. Bg2 c4 12. Nh4 *
Position (FEN): r2qkb1r/1p3ppp/2n1pnb1/p2p4/2pP1BPN/2P1P2P/PP1NQPB1/2KR3R b kq - 1 12
Black to move.
Themes:  Middlegame  
Puzzle rating: 1769
Best move: Bd3