Free printable Binairo with answers
Binairo, also called Takuzu or a binary puzzle, is a grid you fill with 0s and 1s. No three of the same digit may sit together in a line, each row and column holds as many 0s as 1s, and no two rows and no two columns match. Every puzzle here is proved to solve by logic alone, with no guessing.
By size
Size is what makes a Binairo harder: a bigger grid has more lines to keep balanced at once. Start on a 6 by 6 and work up to a 14 by 14.
Easy Binairo
Free printable easy Binairo with answers. A gentle 6 by 6 grid that solves in a couple of minutes, with the completed grid on page two. No sign-up.
Medium Binairo
Free printable medium Binairo with answers. An 8 by 8 grid for everyday solving, each with one answer reachable by logic. Print with the solution.
Hard Binairo
Free printable hard Binairo with answers. A 10 by 10 grid with more lines to balance and longer chains of logic. One solution, printed with the answer.
Large Binairo
Free printable large Binairo with answers. A 12 by 12 grid for a long logic solve, with the completed grid on page two. No sign-up, no watermark.
By name and audience
The same puzzle goes by several names, and suits several solvers. Takuzu, a binary puzzle, or a gentle grid for a child or a beginner, they all solve the same way.
Takuzu puzzles
Free printable Takuzu puzzles with answers. Takuzu is another name for Binairo, a grid of 0s and 1s solved by logic. Print with the completed grid.
Binary puzzles
Free printable binary puzzles with answers. The 0s-and-1s logic grid, also called Binairo or Takuzu, solved by pure logic. Printed with the solution.
Binairo for kids
Free printable Binairo for kids with answers. Small 6 by 6 grids that teach counting and logic with just two symbols. Print with the answer.
Binairo for beginners
Free printable Binairo for beginners with answers. Small grids to learn the rules, each solvable by logic with no guessing. Print with the solution.
One answer, proved by logic
The thing that makes a Binairo book worth printing is the guarantee most sellers cannot make: that the givens have exactly one completion, reachable without guessing. Every puzzle is generated by building a legal grid, carving clues away, and running a solver that proves the deductions alone finish it. The completed grid prints as the answer key, so it can never disagree with the givens.
How to solve a binairo
A binairo, also called takuzu, is a grid of just two symbols, 0 and 1, filled by three simple rules.
The method
- 1Never three in a row. Two of the same number may sit together, but never three. Spot two, and the squares on either side must be the opposite.
- 2Balance every line. Each row and column ends with as many 0s as 1s. Once one symbol is used up in a line, the rest are the other.
- 3Keep every line unique. No two rows may match, and no two columns. Use that to settle a tie late in the solve.
- 4Work the forced squares first. Fill the squares the rules force, then look again. Each one you place opens the next.
- The one rule
- Fill the grid with 0s and 1s so no three alike touch, each line is balanced, and no two lines match.
- What the answer page shows
- The full solution is printed at the back.
- How the grades differ
- Larger grids give the rules more room to interact, so they ask for more steps.
- Good for
- Logic solvers who like sudoku but want something lighter on arithmetic.
Make one now
Pick a size from a gentle 6 by 6 up to a 14 by 14, then print the puzzle and its answer. No sign-up, no watermark.