What is the strongest continuation for White?

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john2001plus (1938) vs. JohnT1234 (1263)

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

(white to move) 1. Nf3 d5 2. d4 e6 3. c4 c5 4. cxd5 exd5 5. Nc3 cxd4 6. Nxd4 Nf6 7. Bg5 Be7 8. e3 Nc6 9. Be2 O-O 10. O-O h6 11. Bh4 Ne4 12. Bxe7 Qxe7 13. Nxd5 Qd7 14. Nxc6 bxc6 15. Nc3 Nxc3 16. bxc3 Qe7 17. Bf3 Ba6 18. Re1 Bc4 19. Bxc6 Rac8 20. Bd5 Bxd5 21. Qxd5 Rfd8 22. Qa5 Rc5 23. Qb4 Rdd5 24. Red1 Rxd1+ 25. Rxd1 Qc7 26. Rc1 Rd5 27. c4 Rd6 28. c5 Rd5 29. c6 Rd6 30. Qxd6 Qxd6 31. c7

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