MathDuel Daily Challenge Hub 🔥0day streak

Today's five

One seeded puzzle set worldwide, refreshed at midnight (UTC+8). Finish any of them to keep the streak. Nothing is uploaded — progress lives in your browser.

0/5
today

⚡Today's tournament

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Every rated duel you finish counts. The board ranks Elo gained, with a bonus per win.

Leaderboards

Daily boards rank today's finishers by time (Shanghai day). Elo ladder is the all-time PvP rating across games. Anonymized nicknames only.