For the discerning mentalist

Read mindswithout breaking a sweat.

Generate elegant, mathematically optimal progressive-anagram decision trees for any category — then rehearse them with a built-in spectator simulator and print a stage-ready cheat sheet.

Decision Tree · Zodiac
Does the word contain the letter "A"?
YES · 6 words
Is the 1st letter "S"?
YES · 1 word
SAGITTARIUS
Max questions 4 · Max NOs 2
The Instrument

A workshop, not a toy.

Optimal decision trees

Choose between minimum-average and safe (min-worst-No) strategies. Enable positional questions, negatives, and length probes.

A?
E?
N?
APPLE
DATE
GRAPE

Practice Mode

Two rehearsal modes: the app plays the spectator so you can perform the effect, or you pick the word and let the app walk the tree.

Force Helpers

Spot the risky No streaks and keep a library of classical + custom outs ready for when they hit.

Print & PDF

One-click cheat sheet.

Saved lists

Sign in to keep every category as a persistent grimoire — reload, edit, and re-tree in one click.

Category Groups

Group words by shared category (Fire signs, Spirits…) and each group becomes a natural yes/no question in the tree.

Your next routine is a few
honest questions away.