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What's the difference?

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All stages · Demo 303

Hungarian TAJ

Choice taj / tb / other. Nine digits; last is sum%10 of 1-7-3 on the first eight. Jev never mods 10. Eight digits need 9.

ChoiceTAJ 1-7-3 in JS

A digit tape. 040830216 books a NEAK plate. A last-digit flip rejects. Eight digits never pass.

replaykind —taj —

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.