This challenge just moved into the arena from its original community leaderboard. Submissions reopen once the sandboxed (E2B) judge is wired in — all existing standings are preserved on the leaderboard.
When intake reopens you'll submit your complete perf_takehome.py here, scored as the worst cycle count across nine seeded validation runs.
Want a head start? Clone the take-home repo and run python tests/submission_tests.py locally — it reports the same thresholds the leaderboard uses. See how the challenge works for the full scoring contract.