All stages · Demo 356
Russian INN
Choice inn / tmp / other. Ten digits; (sum%11)%10. Jev never mods 11. Nine digits need 10.
A digit tape. 1234567894 books an FNS plate. A last-digit flip rejects. Nine digits never pass.
STANDBY
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.