RULE: Logic & Pattern Puzzles

You are shown two or three examples. Something happens in each of them — the same thing, every time. Nobody tells you what.

Then you are shown one more, unfinished, and a few ways it could end. Only one of them follows the rule.

That is the whole game. No timer, no lives, no streaks, no penalty for being wrong. Just the quiet moment where you see it.

ONE ANSWER. PROVED.
The most common complaint about logic and pattern puzzles is the answer you could defend that was marked wrong. Here that cannot happen. Before a puzzle reaches you, it is tested against a catalogue of 556 rival rules. If any of them explains the same examples while pointing at a different answer, the puzzle is not shipped. A hard puzzle here is never a guess.

270 HANDMADE PUZZLES, TEN WORLDS
CHANGE — things become other things
POSITION — where something sits is the message
COUNT — how many is the answer
DIRECTION — orientation carries meaning
INSIDE — what contains what
MIRROR — reflection and symmetry
SEQUENCE — order that keeps going
RULES — everything at once
EXCEPTION — a rule can leave something out
BEFORE — new in 3.0: you are shown the result, and you work out what came before it

A NEW RULE EVERY DAY
One Daily Rule, the same for everyone, free forever. Put it on your Home Screen or Lock Screen with the widget, and share the puzzle with a friend — the picture shows the question, never the answer.

ENDLESS
Puzzles built on your own device and proved by the same code before you see them, for as long as you want them.

A HINT THAT DOES NOT SOLVE IT
Every puzzle has one hint. It tells you where to look, never what to think. Hints are free everywhere.

NOTHING TO INTERRUPT YOU
No ads. No account. No sign-in. No notifications. No timer, no score, no leaderboard, no streak to protect. Nothing is collected about you, and there is no server to collect it. Works offline. iPhone and iPad. In English, Deutsch, Français, Español, Português, Italiano, 日本語, 한국어, 简体中文 and Türkçe.

WHAT IS FREE, AND WHAT IS NOT
Free: the first three worlds — 60 puzzles — the Daily Rule every day, and every hint.
One payment, once, opens the rest: the remaining seven worlds and their 210 puzzles, Endless, the archive of every rule you have discovered, and the full statistics. No subscription. Nothing else to buy.