Chess puzzle (Advantage)
Opening: English_Opening, English_Opening_Symmetrical_Variation
Moves: 1. Nf3 c5 2. c4 e6 3. a3 d5 4. cxd5 exd5 5. e3 Nc6 6. Qa4 a6 7. b4 cxb4 8. axb4
Bxb4 9. Be2 Bf5 10. Ba3 Bxa3 11. Qxa3 Nge7 12. Nc3 O-O 13. d4 b5 14. Qb3 Na5
15. Qa2 Nc4 16. O-O b4 17. Bxc4 *
Position (FEN): r2q1rk1/4nppp/p7/3p1b2/1pBP4/2N1PN2/Q4PPP/R4RK1 b - - 0 17
Black to move.
Themes:  Middlegame  
Puzzle rating: 1046
Best move: dxc4