Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Colle_System
Moves: 1. d4 d5 2. e3 Nf6 3. Nf3 Bf5 4. Bd3 Bg6 5. O-O Nc6 6. a3 Qd6 7. h3 e5 8. Be2
e4 9. Nh2 O-O-O 10. b4 h5 11. b5 Na5 12. Bd2 Nc4 13. Bb4 Qb6 14. a4 *
Position (FEN): 2kr1b1r/ppp2pp1/1q3nb1/1P1p3p/PBnPp3/4P2P/2P1BPPN/RN1Q1RK1 b - - 0 14
Black to move.
Themes: Hanging Piece Middlegame  
Puzzle rating: 1379
Best move: Bxb4