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How to play Binairo

Also known as Takuzu or Binary puzzle. Simple rules, surprisingly deep logic.

The rules

  1. Fill every cell with 0 or 1.
  2. No more than two of the same number next to each other in a row or column.
  3. Each row and column has equal numbers of 0s and 1s, and no two rows (or two columns) are the same.

Watch an example

Here is a small Binairo puzzle being solved one step at a time. Press Play, or use Back and Next to go at your own pace.

Press Play to start.

Playing on LogicBright

Look for pairs: two 1s side by side must have a 0 on each end.

Look for gaps: 1 _ 1 means the middle must be 0.

Count: when a row already has all its 1s, the rest are 0s.

Tips

Try a practice puzzleStrategy guides