Printable Binairo puzzles, ready for pencil.
Each pack is a black-and-white A4 booklet of 0 and 1 grids, with the answer key starting on its own page. No three in a row, every line balanced, no two lines alike.
- 10 free packs
- 6×6 · 8×8 · 10×10
- Answer key included
- No sign-up
- A4
- A4
- A4
- A4
- A4
- A4
- A4
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- A4
Build your own pack
Mix sizes and difficulties in one PDF: say ten easy 6×6 warm-ups, then a few hard 10×10 grids. Up to 100 puzzles, answers included.
- Up to 6 sections
- A4 or US Letter
- Made in your browser
Sections
1 / 6Each section adds puzzles of one size and difficulty, in order.
4 pages: 2 of puzzles, 2 of answers
Your page preview lands here
Press Generate to build 8 puzzles in your browser. Nothing is uploaded, and you can page through every puzzle and answer page here before you download.
How does the pack builder work?
Everything happens on your device. When you press Generate, your browser creates each Binairo grid from the pack seed, solves it to make the answer key, and lays the pages out as a PDF. Nothing is uploaded and there’s no account. Small grids share a page (four 6×6 or 8×8 per sheet) and two 10×10 grids fill a sheet. Tick Large print if you want one big grid per page. Each puzzle prints with its number and seed, so answers line up even when you keep them in a separate PDF. The same seed and settings always give the same puzzles. Use Copy share link to send a class or a friend the exact same pack, or press shuffle for a fresh set.
Just want one grid?
Open Binairo, choose a size and difficulty, then press Print. You get a single clean sheet of that puzzle.
- 1
Download
Pick a size and difficulty. Every file is a small A4 PDF.
- 2
Print in black & white
6×6 fits four to a page, 8×8 fits four to a page, 10×10 fits two to a page.
- 3
Check the answers
The answer key starts on its own page, so you won’t spoil the next puzzle.
About these Binairo packs
Print a Binairo pack and solve it with a pencil. Binairo, also called Takuzu or the binary puzzle, asks you to fill every cell with a 0 or a 1. Each file is a black and white booklet: the puzzles come first, and the answer key starts on its own page, with the given digits in bold so you can tell them from the ones you wrote. Packs are split by size and difficulty. A 6×6 or an 8×8 sheet holds four puzzles and a 10×10 sheet holds two. Seeds are fixed, so the same download always has the same grids. Each single pack has eight puzzles, and the starter pack mixes all three sizes and all three difficulties. To try one grid on screen first, open Binairo and use Print or Download PDF there.