# Measure Up — Differences Puzzle | Mathallery

Source: https://mathallery.com/games/measure/

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# Measure Up

Differences · 30 levels

A handful of pins must measure every length.

## How to play

- Touch the ruler, slide to a hole and let go to put in a pin. Do the same on a pin to pull it out.
- Any two pins (the ends count) measure the gap between them. The bar lights each length you can measure.
- Light every length using only the pins you have. Tap a length to see its arc.

Gaps can be measured between any two pins, not just neighbours. From level 20 the rule flips: use all your pins with no length measured twice. Knots in the wood take no pin.

[Open Measure Up](https://mathallery.com/#/play/measure/1)

Teeter, Tint and Echo Heist are free starters. Other games unlock through earned game choices or permanent packs. Your progress stays in the browser; optional sign-in saves it to your website account.