Chess puzzle (Advantage)
Moves: 1. e4 e5 2. Bc4 Nf6 3. d3 Bc5 4. Ne2 d6 5. c3 Bg4 6. O-O O-O 7. Kh1 Qd7 8. f3
Be6 9. Bb3 a5 10. Bc2 b5 11. Nd2 Nc6 12. Re1 d5 13. Nf1 d4 14. Nfg3 dxc3 15.
bxc3 b4 16. Bb2 bxc3 17. Nxc3 Bf2 18. Re2 Bxg3 19. hxg3 Nd4 20. Re1 Qd6 21. Ne2
Nxe2 22. Qxe2 Nh5 23. Qf2 Rab8 24. Rab1 *
Position (FEN): 1r3rk1/2p2ppp/3qb3/p3p2n/4P3/3P1PP1/PBB2QP1/1R2R2K b - - 4 24
Black to move.
Themes:  Middlegame  
Puzzle rating: 1518
Best move: Bxa2