Chess puzzle (Advantage)
Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. a4 e5 7. Nf3 Be6 8. h3
Be7 9. Be3 O-O 10. Qd2 Nbd7 11. g4 Nc5 12. Bxc5 dxc5 13. Nxe5 Qxd2+ 14. Kxd2
Rfd8+ 15. Ke3 c4 16. Be2 Bc5+ 17. Kf3 Rd2 18. Rac1 b5 19. axb5 axb5 20. Nxb5 *
Position (FEN): r5k1/5ppp/4bn2/1Nb1N3/2p1P1P1/5K1P/1PPrBP2/2R4R b - - 0 20
Black to move.
Themes:  Middlegame  
Puzzle rating: 1734
Best move: Nxe4