# Marble Run — Binary Puzzle | Mathallery

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

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# Marble Run

Binary · 30 levels

Rock the flip-flop gates so the marbles land just right.

## How to play

- Tap a gate to choose which way it leans. A marble rolls the way the gate leans, then the gate flips to the other side.
- Press Release to drop the marbles one by one. Use the speed button to watch slowly or quickly.
- Win when every bin holds its number of marbles, or when the gates read the target (a right-leaning gate counts its place value 1, 2, 4, 8…).

A gate splits its marbles in turns: 5 marbles go 3 one way and 2 the other. A chain of gates counts in binary, so to read 13 after 5 marbles, start it at 13 − 5 = 8.

[Open Marble Run](https://mathallery.com/#/play/marblerun/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.