Binary Puzzle
Fill the grid with 0s and 1s. No three in a row, every line balanced.
About Binary Puzzle
A free binary puzzle, also known as Takuzu, Binairo or 0h h1. Fill every cell with a 0 or a 1 so that no more than two of the same digit sit next to each other, every row and column has equal numbers of each, and no two rows or columns are identical. Choose a 6×6, 8×8 or 10×10 grid and three difficulty levels.
How to play Binary Puzzle
- Tap an empty cell to cycle it: 0, 1, then empty again.
- Never put three of the same digit next to each other in a line.
- Each row and column needs as many 0s as 1s.
- No two complete rows (or columns) may be the same.
Tips and strategy
- Two of a kind side by side? The cells on either end must be the other digit.
- A gap between two matching digits must be the opposite digit.
- Once a line has half its 0s, the rest are 1s.
Binary Puzzle FAQ
Does every puzzle have one answer?
Yes. Each puzzle is generated fresh and checked by a solver, so there is exactly one solution and you never need to guess.
What do the red outlines mean?
They flag a broken rule: three in a row, too many of one digit in a line, or two identical lines.
Is Binary Puzzle free to play?
Yes. Binary Puzzle is free in your browser on OFF PLAY, with nothing to download or install.
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