What is the strongest continuation for White?

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maybeswap (1844) vs. john2001plus (1868)

8 7 6 5 4 3 2 1 a b c d e f g h 0

(white to move) 1. e4 e6 2. Nf3 d5 3. exd5 exd5 4. d4 Nf6 5. Bd3 Bd6 6. c3 O-O 7. h3 Re8+ 8. Be2 Ne4 9. O-O c6 10. Bd3 h6 11. Be3 Bf5 12. Qc2 Nd7 13. Nbd2 Ndf6 14. c4 Qc7 15. Rac1 dxc4 16. Nxc4 Bf4 17. Nce5 Bxe3 18. fxe3 Nd5 19. Bxe4 Nxe3 20. Qb3 Bxe4 21. Qxe3

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