# Lighthouse — Angles Puzzle | Mathallery

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

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# Lighthouse

Angles · 30 levels

Swing each beam with angle cards until it lights its ship.

## How to play

- Tap an angle card, then tap a lighthouse. Its beam swings by that angle: + turns clockwise, − turns anticlockwise.
- Every beam must point straight at the ship of its own colour. A full turn is 360°, so turning past it just goes round again.
- The card rule is shown above the sea: use every card, or (later) spare cards allowed. Tap a lighthouse's chip under the sea to take its last card back.

Work out each turn first: from the beam to the ship, clockwise. A quarter turn is 90°, a half turn 180°. Later the degree ring fades and some cards turn backwards.

[Open Lighthouse](https://mathallery.com/#/play/lighthouse/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.