[gowld]

Does folding a protein count? How about increasing performance at Go?

[fc417fc802]

"Optimize this extremely nontrivial algorithm" would work. But unless the provided solution is novel you can never be certain there wasn't leakage. And anyway at that point you're pretty obviously testing for superintelligence.

[optimalsolver]

It's worth noting that neither of those were accomplished by LLMs.