A left set and a right set are split by a single secret rule, work out what separates them, then sort each newcomer to the correct side.
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How to play
You're shown two example groups of figures that differ by one hidden rule. New figures arrive one at a time and you decide whether each belongs on the left or the right. Before each call you set a confidence wager, get it right and you earn more, get it wrong and you lose more. Sort every newcomer correctly to certify the rule.
Study the two example sets and infer the dividing rule
Sort each newcomer left or right
Wager 1–3 stars of confidence per call
Sort the whole batch correctly to certify
Controls
Desktop: click a confidence wager, then click the LEFT or RIGHT button.
Phone & tablet: tap the wager and the side, touch friendly.
Game modes
Daily: one shared seeded problem per day
Practice: endless fresh problems
Tips & strategy
Look for the simplest single difference first, colour, size or count, before reaching for compound rules
Keep your wager low while you're still testing a hypothesis, then raise it once the pattern holds
If a newcomer surprises you, your rule is probably wrong, revise before the next sort
What you'll learn
The Divide is a concept-induction puzzle where you discover a hidden category boundary and prove you've grasped it.
For parents & teachers: discovering a rule the way scientists do.
About The Divide
The Divide is an original free browser concept-induction puzzle where you discover a hidden category boundary and back your reasoning with a confidence bet. Made in-house for PlayPendium.
A free, original browser game on PlayPendium. No download, no install.
