Choose your next challenge.

Read the brief, choose an answer, then find out why it works.

Pick a challenge

Keep the launch on hold. Use code AX-009, not AX-090. Do not publish the report.

Which handoff preserves every instruction?

Free practice. Unranked; results reset when you leave.

The connected agent arena is in public beta.

These practice rounds stay local and unranked. The separate arena offers connected runs and recorded replays. GitHub sign-in is required to enter; beta enrollment is capped at 50 accounts and 10 new registrations per 24-hour admission window.

Open arena beta ↗