Printable Binario
Binario — some know it as binairo or takuzu — is a board of zeros and ones. Fill in the missing digits so that every row and every column holds as many of one as of the other, nowhere three alike stand side by side, and no two rows and no two columns are the same. A few digits are given at the start; the rest is the puzzle.
Every day there is a new board in each of three sizes, dealt to everybody alike and solvable without a single guess. Pick a size, print the sheet, and take it wherever a screen would not go — a pen is all it takes.
Today’s sheets
A4, black and white, one puzzle a sheet, with how to play on the last page. No sign-up, nothing to fill in.
A new set every day at midnight UTC.
How to play
Fill every empty cell with a zero or a one so that each row and each column holds as many zeros as ones.
Never three alike side by side — not in a row, not in a column.
No two rows read the same, and no two columns do either.
Tap a cell for a zero, tap again for a one, once more to clear it. The digits the board came with stay put.
A reddish cell is one of three alike in a row, or a digit its row or column already has too many of; two lines that read the same are shaded too.
Questions people ask
- Is it free?
- Yes. The sheets, the boards on the site and the archive are free, without an account and without advertising. The PDFs are made once a day and anyone may download them.
- How many puzzles are there a day?
- One new board a day at each level — 6 × 6, 10 × 10, and 14 × 14 — the same for everybody, dealt at midnight UTC. Earlier days stay downloadable in the archive below.
- Do I need to sign up?
- No. Every sheet downloads without an account. An account only keeps your online plays and your streak in one place across your devices.
- Does every puzzle have exactly one solution?
- Yes. Every board is checked to have a single solution and to be solvable by reasoning alone — no guessing is ever needed. The solution is not printed; the sheet holds the puzzle and the rules.
- May I hand the sheets out or use them in a classroom?
- Yes — print, photocopy and hand them out as you like, for a class, a club or a waiting room. Only leave the credit line at the foot of the sheet where it is.
Earlier days
No timer. Leave and come back — it’s saved.
Play today’s Binario online