DnesDanPuzzle guides
Binairo · Zero One Logic GridRules and first moves

How to play Binairo

Two symbols, three rules, and a surprising amount of deduction. Also known as the binary puzzle or Takuzu.

The rules

  1. Fill the grid. Fill every cell with 0 or 1.
  2. Balance lines. Each row and column must contain the same number of 0s and 1s.
  3. Avoid triples. No row or column can contain three identical values in a row.
10100101010101011
A partly filled board. Every row and column ends with three 0s and three 1s.

Where to start

The triple rule does most of the early work. Wherever you see two identical values side by side, the cells at both ends are forced to be the opposite value. Wherever two identical values sit with a gap between them, the gap is forced too.

Then count. Once a row already holds half its cells as 1s, every remaining cell in that row is a 0 — no further reasoning needed.

Play Binairo

Offline, no account, no ads.

Android coming soon

This one is on iPhone and iPad first. Six of the nine puzzles are already on Google Play.