is Binairo - Binary Logic

Fill the grid with two symbols so that each row and column has the same number of each, no three identical symbols sit side by side, and no two rows or columns are alike.

is Binairo is a quiet logic puzzle. There is no tutorial wall, no countdown and almost nothing to read - the board explains itself the moment you touch it.

FOUR DIFFICULTIES
6×6 to warm up, then 8×8, 10×10 and 12×12. Every board is generated fresh, so you never repeat one.

RATED ON CLEAN SOLVING, NOT SPEED
Stars reward how cleanly you solve - fewer mistakes and fewer hints - not how fast you were. They sit at the top of the screen while you play.

DAILY CHALLENGE
One 8×8 board a day, the same board for every player, with a leaderboard showing the players around you. A new one arrives every day.

FIVE TIERS TO CLIMB
Stars add up across every board you finish and carry you through five tiers. The last two also ask you to prove it on the daily challenge.

PLAY AS LONG AS YOU LIKE
No energy meter, no lives, no waiting to play again. Coins are used only for hints and instant retries, and six arrive free every day.

ALSO IN THE BOX
- A full history of finished boards with your time
- Replay any past board to beat your own record
- The puzzles themselves work offline
- Follows your system light and dark theme
- Six languages: English, Deutsch, Français, Español, 日本語, 한국어
- An optional daily reminder you can switch off in settings