Percent Heist

Each round shows a batch of items, some passed by the gate (bright) and some blocked (dimmed). Work out which single trait, a shape or a colour, decides who gets through, and what percentage of those items the gate lets pass. Submit the correct trait and percent to clear the round; finish all rounds to score. Peeking at the pass-count table helps, but each peek trims your score.

• Passed items are bright; blocked items are dimmed.
• Exactly one trait (a shape or colour) governs the gate.
• Name both the deciding trait and the pass percentage to win the round.
• Use Peek to see pass counts per trait, sparingly, since it costs score.

• Daily: the same puzzle set for everyone, in Easy, Medium, or Hard.
• Practice: fresh random rounds at your chosen difficulty.

• Desktop: click to choose the trait and percent, then Submit; Peek opens the pass table.
• Phone & tablet: tap the trait, tap the percent, and tap Submit, Peek shows the counts.

• Find the trait first: the deciding one passes a consistent share while others look random.
• Count passed versus total for your candidate trait to read the percentage straight off.
• Trust the proportions before peeking, a confident submit beats a score-draining peek.

Percent Heist builds real intuition for percentages and proportional reasoning by hiding a percentage rule you must deduce and apply.

• Skills: percentages, proportional reasoning, fractions–decimals–percents, estimation
• Best for: roughly grades 6–9 (ages 11–15)
• For parents & teachers: moves percentages beyond formulas into reasoning you can feel.

Working out which single trait decides whether an item passes a gate is concept learning applied to a rule with exactly one relevant dimension.

The original second half is the estimate: you must also say what percentage of items the gate lets through.

Those two answers are different skills. Identifying the trait is categorical reasoning; estimating the pass rate is proportional reasoning over a sample you only glanced at. Requiring both means a correct rule with a wild percentage does not clear the round.

Percent Heist is an original, free browser puzzle that builds intuition for percentages and proportional reasoning by hiding the rule behind a gate. Play instantly in your browser.

A free, original browser game on PlayPendium. No download, no install.