Chess puzzle (Advantage)
Opening: Queens_Pawn_Game, Queens_Pawn_Game_Stonewall_Attack
Moves: 1. d4 Nf6 2. e3 d5 3. Bd3 e6 4. c3 c5 5. f4 Nc6 6. Nf3 b6 7. O-O Bb7 8. Ne5 c4
9. Bc2 Bd6 10. Rf3 Ne4 11. Rh3 Qe7 12. Nd2 Na5 13. Ndf3 O-O-O 14. b4 cxb3 15.
axb3 Nxc3 16. Qd2 Bb4 17. Ba3 f6 *
Position (FEN): 2kr3r/pb2q1pp/1p2pp2/n2pN3/1b1P1P2/BPn1PN1R/2BQ2PP/R5K1 w - - 0 18
White to move.
Themes: Fork Middlegame  
Puzzle rating: 1816
Best move: Bxb4