What is the strongest continuation for Black?

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Gusev (1788) vs. john2001plus (1931)

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

(black to move) 1. e4 e6 2. c4 d5 3. cxd5 exd5 4. Nf3 dxe4 5. Qa4+ Nc6 6. Qxe4+ Be7 7. Bc4 Nf6 8. Bxf7+ Kxf7 9. Ng5+ Kg8 10. Qc4+ Qd5 11. Qxd5+ Nxd5 12. Nf3 Bg4 13. O-O Bxf3 14. gxf3 Nd4 15. Na3 Nxf3+ 16. Kg2 Nd4 17. d3 Bxa3 18. bxa3 Nc2 19. Rb1 b6 20. Bb2 Nf4+ 21. Kg3 Nxd3 22. Rfd1 Nxb2 23. Rxb2 Nxa3 24. Rd4 c6

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