Temporary exercises
The quiz runs as an on-page ten-question session. Card selections in the calculator are also temporary. Reloading starts them again; there is no visitor learning account or cloud progress record.
Local scorebook
Team names, optional review boundary and agreed game-point changes stay in this browser’s local storage. Another device will not automatically share them. Export CSV before Reset or clearing site data; this version has no CSV import.
Manual settlement
The ledger accepts final signed changes. It does not infer them from a bid, selected cards, doubles or a pair. Its review-boundary alert is a prompt to check the agreed result, not a winner decision.