Binary Puzzles
Fill the grid with 0s and 1s — balanced rows, no three in a row, every line unique.
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How to play
Click a cell to cycle empty → 0 → 1. Locked clue digits can’t change. Three-in-a-row warnings pulse red as you go. Fill the grid legally, then press Verify.
About Binary Puzzles
Binary Puzzles (also called Takuzu or Binairo) ask you to fill every cell with a 0 or a 1 under three rules: each row and column holds equal counts of both, no three identical digits sit in a line, and no two rows or columns are the same. Pure deduction, no guessing.