Binary Grid
Two colours. Three rules. One complete grid.
How to play Binary Grid
Fill each row and column with equal numbers of both colours. Never place three identical colours consecutively, and keep every completed row and column unique. Play with the original Nickelbar rules and board drawings. Help below the game lists its keyboard and mouse shortcuts. Your current game stays in this browser tab.
- Click or press Space to cycle a square; dotted clues are fixed.
- Use 1 or 2 to set a colour and 0 to clear it.
- Complete the grid. I offers a hint and S changes its size.
Keyboard & mouse controls
Hover moves the cursor, LEFT does what SPACE does, RIGHT cycles backwards
- Arrow keys
- Move or select a square
- Space / Enter
- Play the selected move, or resume
- N / P
- New game / pause
- H / Tab
- Help and settings / choose a game
- U
- Undo (where available)
Click the board before using keyboard controls. On a phone, you can also use the buttons beneath it.
Common questions
Is Binary Grid free?
Yes. Play in your browser without an account or a download.
Can I pause and come back?
Press P to pause. Your current game is kept in this browser tab’s session; your best score is stored on this device. Clearing browser data removes saved progress.
Where is this game from?
The game engine and board drawings come from Nickelbar by Cob Muddybug, adapted to run in a browser. MIT licence and credit.