Binary Puzzle: Takuzu Binairo

Fill the grid with moons and suns. Every row, every column, three simple rules — and a surprising amount of depth.

Binary Puzzle (also known as Takuzu or Binairo) is a quiet logic game with rules you learn in seconds:

• Each row and each column must contain the same number of moons and suns.
• Never three identical symbols in a row — horizontally or vertically.
• No two rows may end up identical. The same goes for columns.

That's all. From there it is pure deduction: a row that already has its quota of moons forces suns into every empty cell, two identical symbols side by side force the third, and a nearly finished row that would duplicate another row can only end one way. No guessing. No luck. Just logic.

WHAT YOU GET
• 240 hand-verified levels from a gentle 6×6 up to a demanding 14×14
• Every board has exactly ONE solution — you will never need to guess
• A free daily puzzle, every day, with a streak to protect
• Rule-named hints: the game tells you WHICH rule unlocks the next cell
• Live violation highlighting — see instantly why a placement is illegal
• Drag to fill whole runs of cells in one gesture
• Undo, clear board, and a timer that pauses when you leave
• Six board sizes, four beautiful themes, achievements and statistics
• Endless random grids and a 30-day daily archive with Premium

WHY TAKUZU
Takuzu (Binairo, Binary Puzzle, Binoxxo) is a classic Japanese-style logic puzzle — the same family as Sudoku — but faster to learn and quicker to solve. Boards take between one and ten minutes: perfect for a coffee break, a commute, or a calm moment before sleep.

Play offline. No accounts, no ads, no interruptions. Just you and the grid.

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