# Magic Gem — Magic sums Puzzle | Mathallery

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

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# Magic Gem

Magic sums · 30 levels

Number the corners so every face adds up the same.

## How to play

- Tap a number, then a dot (or the dot first). Tap a placed number to lift it off.
- Every line or face must add up to its target. It glows when it's right.
- Gems are 3D: drag to turn them, or tap ◀ ▶ ▲ ▼. Dots round the back are dim until you turn them to you.

Add up every number and count how many lines or faces use each dot: it tells you which totals are possible and where the big numbers must go.

[Open Magic Gem](https://mathallery.com/#/play/gem/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.