Community board
Community board
Compare like-for-like once your estimate is trusted. There is no global ranking yet and no other users are shown — we never invent leaderboard entries.
Your personal best
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Opt in to the future global board
Opting in stores a flag in this browser only. Nothing leaves your device until the shared board is built.
Why isn't there a global ranking?
A fair global board needs a shared backend (planned: Supabase with an allowlisted RPC so browsers can submit scores but never rewrite history). Until that ships, this page shows only your own verified sittings from this browser.
- Qualification: 40+ graded questions across saved sittings.
- Ranked by best scaled estimate (1.0–9.0), ties by accuracy.
- Only opted-in sittings will ever be submitted.