Play Takuzu binary puzzles online

Find the balance hidden between zero and one. Select a cell, then tap 0 or 1 below. Balance each row and column; avoid triples and duplicate lines.

How to play

1. Select an empty cell and enter zero or one below. Given numbers are fixed; your own entries can be erased.
2. Each row and column needs equal numbers of zeroes and ones, with no three identical numbers consecutively in either direction.
3. No two completed rows may match, and no two completed columns may match. Satisfy every condition to advance.

Logic

• Skyscraper View — Use clues around the edge to deduce tower heights.
• Arithmetic Cages — Solve arithmetic and grid logic together.
• Domino Pairs — Pair the numbers into a set of unique dominoes.