Chess puzzle (Advantage)
Moves: 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Be3 Qxb2 7. Nbd2 Qxc3 8. Rc1
Qa5 9. Be2 cxd4 10. Nxd4 Nxd4 11. Bxd4 Qxa2 12. Ra1 Qxa1 13. Qxa1 a6 14. O-O
Ne7 15. Rc1 g6 16. Rc7 Nc6 17. Qa4 Be7 18. Rxc6 Bd7 19. Qa5 Bxc6 20. h3 O-O 21.
Be3 Bd8 22. Qa3 Bc7 23. Bh6 Rfb8 24. Qf3 Bxe5 25. Bd3 b5 26. g3 a5 27. Qe2 Bb2
28. Nb3 Bc3 29. Qe3 a4 *
Position (FEN): rr4k1/5p1p/2b1p1pB/1p1p4/p7/1NbBQ1PP/5P2/6K1 w - - 0 30
White to move.
Themes:  Middlegame  
Puzzle rating: 1989
Best move: Nd4