---
title: "Printable Binairo: free, with answers | Once Books"
description: "Free printable Binairo, also called Takuzu or binary puzzles. Fill a grid with 0s and 1s under three simple rules, and every puzzle is proved to solve by logic alone. Print with the answer."
source: "https://www.oncebooks.com/binairo"
---

Free printables

# 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 12 by 12.

- [Easy Binairo](https://www.oncebooks.com/binairo/easy) — 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](https://www.oncebooks.com/binairo/medium) — 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](https://www.oncebooks.com/binairo/hard) — 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](https://www.oncebooks.com/binairo/large) — 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](https://www.oncebooks.com/binairo/takuzu) — 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](https://www.oncebooks.com/binairo/binary-puzzle) — 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](https://www.oncebooks.com/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](https://www.oncebooks.com/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.

## 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.

[Open the Binairo generator](https://www.oncebooks.com/tools/binairo-generator)[Make a whole book for KDP](https://www.oncebooks.com/kdp-binairo-maker)