The goal
Fill the grid with zeros and ones. Each row and column contains three of each. Three equal digits cannot be consecutive, and complete rows or columns cannot repeat.
Logic · 3–10 MIN
How to play ↓Binary puzzle.
Zeros and ones. Everything finds its balance.
Getting your game ready…
How to play: Binary puzzle
The controls
Tap a cell to cycle through blank, zero and one. Original clues are locked. Each puzzle is checked for exactly one solution.
A little strategy
Two identical adjacent digits force different neighbors. If a row already has three zeros, all its remaining cells must be ones.
Can I save my game?
Yes. Progress stays in this browser. My account lets you save an encrypted backup and restore it on another device; there is no automatic sync.
Where is my progress saved?
Progress stays in this browser. An optional account lets you save an encrypted backup and restore it on another device from My account. There is no automatic sync.
A GUIDE TO KEEP GOING
Read the guide ↗Binary puzzles: four rules for finding balance
A grid of zeros and ones is solved through balance, limits and differences. No arithmetic operations are needed.