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What's the difference?

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All stages · Demo 374

Costa Rica cédula

Choice ced / tmp / other. Nine digits starting 1–9. Jev never folds doubles. Eight digits need 9.

ChoiceCédula 2-1 walk in JS

A digit tape. 109000009 books a TSE plate. A last-digit flip rejects. Eight digits never pass.

replaykind —ced —

STANDBY

All 4056 stages

Educational stage on jev.page — not the official TypeSafe console. Live calls go to POST https://api.typesafe.ai/v1/systemone from your browser when you paste a key. Without a key, the stage plays a recorded decision shaped like jev-1.13.0. Jev does not write the UI copy.