---
title: "Hard Binairo: free printable with answers"
description: "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."
source: "https://www.oncebooks.com/binairo/hard"
---

1. [Home](https://www.oncebooks.com/)
2. [Binairo](https://www.oncebooks.com/binairo)
3. Hard

Free printable

# Hard Binairo

A 10 by 10 Binairo gives the rules more room to interact, so you spend longer following a chain of forced cells across the grid. It still never needs a guess, which is the whole point: the deductions alone finish it, and the answer is on page two.

PuzzleDesign

Difficulty

Larger grids have more lines to balance. Every puzzle solves by logic, with no guessing.

10×10, 25 given cells. Fill the rest with 0s and 1s so no three repeat and every line is balanced.

Theme

ClassicBoldSoftShadedNavyIndigoSkyTealEmeraldForestPlumBerryCrimsonEmberAmberCocoa

**Customise colours**

Numbers

Cell lines

Box lines

Page background

Style

StandardClean

Clean drops the title band and footer, leaving the grid.

Generate puzzlePrint / save PDF

Two pages: the puzzle and its completed grid. Every puzzle is proved to solve by logic alone, by the same engine as our KDP studio.

## Want the whole book?

This makes one puzzle. Sign up to turn it into a full Binairo book for Amazon KDP: hundreds of graded binary-logic puzzles at any trim, as print-ready PDFs.

[Build the full book](https://app.oncebooks.com/publisher-studio/binairo)

Free to build · pay once to export

Preview

The puzzle and its completed grid, as they print.

Hide the preview

- Binairo Hard

  1

  Puzzle
- Binairo Hard · Solution

  2

  Solution

Generate puzzlePrint / save PDF

## Making a whole Binairo book?

This page makes one puzzle. To publish a book on Amazon KDP, the [KDP Binairo maker](https://www.oncebooks.com/kdp-binairo-maker) generates hundreds of graded puzzles at any trim, as a print-ready 300 DPI interior and solutions PDF. Generate once, export unlimited sizes.

## More printable Binairo

- [Easy Binairo](https://www.oncebooks.com/binairo/easy)
- [Medium Binairo](https://www.oncebooks.com/binairo/medium)
- [Large Binairo](https://www.oncebooks.com/binairo/large)
- [Takuzu puzzles](https://www.oncebooks.com/binairo/takuzu)
- [Binary puzzles](https://www.oncebooks.com/binairo/binary-puzzle)
- [Binairo for kids](https://www.oncebooks.com/binairo/for-kids)

[See every printable Binairo](https://www.oncebooks.com/binairo)

## Questions

**Are these hard binairo free to print?**

Yes. Generate the puzzle above and print it with its answer, at no cost and with no sign-up. It is free for classroom, home and personal use.

**Does every puzzle solve by logic?**

Yes. Every puzzle is generated so that the no-three, balance and uniqueness rules alone complete the grid, with no guessing, and that is verified before it prints. The answer is on the second page.

**Can I make a Binairo book to sell on KDP?**

Yes. The free tool makes one puzzle. The KDP Binairo maker generates hundreds of graded puzzles at any KDP trim, as a print-ready 300 DPI interior and solutions PDF, so you can publish a book.