Binairo blog

Guides, strategy, and explainers for Binairo (binary puzzle / takuzu) fans. New here? Start with how to solve binary puzzles, then explore the rest. Prefer to just play? Jump in below.

• Binairo, Takuzu & Binary Puzzle: Why One Puzzle Has So Many Names

  Binairo, Takuzu, Binary Puzzle, Tic-Tac-Logic, 0h h1, Unruly — they're all the same puzzle. Here's why this one logic puzzle has so many names and which name is used where.

• How to Solve Binary Puzzles: Tips and Techniques

  How to solve binary puzzles (Binairo / Takuzu): the core techniques — pair forcing, the sandwich rule, and count completion — that crack any grid using logic alone, no guessing.

• Binary Puzzle vs Sudoku: How Do They Compare?

  Binary puzzle vs Sudoku: both are grid logic puzzles, but one uses nine digits and the other just two. Here's how Binairo and Sudoku compare and which to play if you love the other.

• How to Solve a 6×6 Binary Puzzle, Step by Step

  A complete step-by-step walkthrough of a 6×6 binary puzzle (Binairo). Follow every forced move — pair forcing, the sandwich rule, and count completion — from the givens to the finished grid.

• Is Binairo Really About Binary Code? What the 0s and 1s Mean

  Does the binary puzzle have anything to do with binary code or programming? No — and here's why. What the 0s and 1s in Binairo really mean, and why they could be any two symbols.

• Why Are Binairo Grids Always an Even Size?

  Why are Binairo (binary puzzle) grids always even-sized — 6×6, 8×8, 10×10? The answer is the equal-count rule, which only works when each row and column has an even number of cells.

• Rule 3 Explained: Solving Binairo With Unique Rows and Columns

  Binairo's third rule — no two identical rows or columns — is the one beginners forget and experts exploit. Here's how to use the unique-lines rule to crack hard binary puzzles.

• How Binary Puzzles Are Made (and Why They Have One Solution)

  How are binary puzzles (Binairo / Takuzu) made? Inside the construction process: building a valid grid from the three rules, removing cells, and guaranteeing a single logical solution.