RNGdle Daily (rngdle.net)

RNGdle.net scores every number from 0 to 1,000,000 by how rare its structure is: repeated digits, mirror symmetry, long runs of digits, an unusual digit sum or a factorisation few numbers share. The daily challenge turns that into a game of judgement. Big numbers are not rare; structured ones are.

Three challenge types rotate in a fixed order. In Number Draft five numbers are dealt face up and exactly one is the rarest; you lock in one pick, and then every score is revealed. In Pattern Hunt numbers arrive one at a time from a deck that is the same for every player; you roll on or bank the number on screen within 60 seconds, and you are scored on how your banked number ranks in the whole deck. In Rare or Common you choose the rarer of two numbers in ten rounds, each pair built with a clear gap between them.

The challenge and every number in it are generated from the date, and it changes at midnight UTC. The scored attempt cannot be restarted; afterwards Practice mode deals fresh rounds of the same type. Finishing at any score extends your streak, results can be shared as an emoji grid without the numbers, and finished choices feed an anonymous daily leaderboard. There is no account and no cost. Past days cannot be replayed yet.

This is a different site from rngdle.com, where each player rolls a personal number.