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Card 693 of 9772026-09-26 issue

Observed arrival · 2026-09-26

RivalPip Cycle: A Workshop for Nontransitive Dice

rivalpipcycle.space Visit website
Editorial interest 73/100 Selection signal · not a rating of the site

The homepage presents an iPhone and iPad tool for building nontransitive dice, examining their exact pairwise outcomes, and preparing printable classroom materials.

Landing page captured for the 2026-09-26 issue.
For
Probability teachers, math-club coaches, and puzzle designers
Worth noticing
The homepage names seeded sets including Efron’s four-die set, Miwin, Grime, and Oskar.

Field notes

The homepage lays out a classroom-oriented sequence: choose a seeded set or blank dice, edit pips on nets, inspect pairwise outcomes, and prepare printable materials. It names Efron, Miwin, Grime, and Oskar as seeds, and says the calculations use the full face-by-face sample space. The page describes offline use and local remixes, but the supplied evidence does not show the app itself or establish its availability.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible
✦PrettyNotable craft visible
◎NicheUnusually specific use

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rivalpipcycle.space

Landing page observed 2026-09-26. The live site may have changed.