Chess puzzle (Advantage)
Moves: 1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Be7 6. Be2 Be6 7. O-O O-O 8.
Bf4 c6 9. e5 dxe5 10. Bxe5 Bd7 11. Bc4 b5 12. Bb3 c5 13. Ndxb5 Nc6 14. Bc7 Qc8
15. Bd6 Bxd6 16. Nxd6 Qb8 17. Nce4 Nxe4 18. Nxe4 Qc7 19. Nxc5 Bf5 20. Qf3 Nd4
21. Qd5 Rad8 22. Na6 Qb6 23. Qc4 Rc8 24. Qa4 Nxb3 25. axb3 Rxc2 26. Qf4 Bd3 27.
Rfd1 *
Position (FEN): 5rk1/p4ppp/Nq6/8/5Q2/1P1b4/1Pr2PPP/R2R2K1 b - - 3 27
Black to move.
Themes:  Middlegame  
Puzzle rating: 1670
Best move: Bxa6