Rules

The game has four simple rules:

1. Every cell is filled with either blue or red.
2. No three consecutive cells are filled with the same color.
3. Every row and column has an equal number of blue and red cells.
4. No two rows or two columns are the same.

Due to the third rule, the size of the grid must be even.

The solution for each puzzle is unique, so guessing tends not to work very well.

Multiplayer

By sharing the URL with someone else, you can solve the puzzle together.

Alternatives

The game is also known as / playable as (single-player):

• Takuzu
• Binairo
• 0h h1
• binarypuzzle.com

And many more...