What is the strongest line for White?

30 0, Internet Chess Club
john2001plus (1834) vs. fiddler (1845)

8 7 6 5 4 3 2 1 a b c d e f g h +1

(white to move) 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. Nc3 Be7 5. Bf4 O-O 6. e3 c5 7. cxd5 Nxd5 8. Nxd5 Qxd5 9. dxc5 Qxc5 10. a3 Bf6 11. Bd6 Qb6 12. Bxf8 Qxb2 13. Rc1 Bc3+ 14. Nd2 Kxf8 15. Qc2 Qxc2 16. Rxc2 Bxd2+ 17. Kxd2 Nc6 18. Bb5 Bd7 19. Rd1 a6 20. Bd3 Ne5 21. Be4 Bc6 22. Bxc6 Nxc6 23. Ke2 Ke7 24. Rb1 Ra7 25. a4 Kd8 26. Rd1+ Kc7 27. Rcd2 Nb8 28. a5 b6 29. Rc2+ Kb7 30. axb6 Ra8 31. Rd6 a5 32. Rc7+ Ka6 33. b7+ Ka7 34. bxa8=Q+ Kxa8 35. Rxf7 h6 36. Rb6 g5 37. Rbb7 Na6 38. Ra7+ Kb8 39. Rxa6 h5 40. Rxe6

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Click here for 24... Na5.
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