Terms of use

One of each puzzle a day. Every game is open every day, and in a game with levels each level is its own puzzle, playable once. A day flips at midnight UTC, the same moment for everybody, and finishing any single board makes the day — the rest of the set is there if you fancy it, never an obligation.

The site is free and takes no payments. There is no advertising on it — no ad network, no sponsor, nobody paying to be put in front of you — and none is planned. The one thing you may see is us pointing at our own: another site we run, something else we have made. That is the extent of it, and it is us talking rather than somebody who bought the space.

You do not need one. An account exists only so your history and your streak follow you between devices — one per person, free, and closable whenever you like by writing to contact@playjustone.com.

A sign-in link is a key: anyone with your inbox can open your account, so keep the inbox safe. Tell us if you think somebody else has been in there.

Solve the puzzles the way they were meant to be solved, and leave the site standing for the next person. That rules out the obvious handful of things: scripting play, hammering the API, scraping the site wholesale, digging for a solution the board has not given you, poking at other people’s data, or trying the doors on the admin area.

Solving a puzzle on paper, in another program, or with a friend is your business entirely. The rules here are about the site, not about how you think.

The site is provided as it is. We do not promise it will be up, that a day’s puzzles will always be there, that a board will always be flawless, or that a streak survives a bad night for the database. We will fix what we can, and we will not pretend a lost day was anything else.

To the extent the law allows, we are not liable for loss arising from using the site. That limit does not touch liability for intent or gross negligence, nor any right you have as a consumer under Polish and EU law — those stand whatever this page says.

The site, its design, its text and its generators belong to the operator. The Sudoku and Bridges boards are generated fresh, and a generated grid is not something anybody owns — solve them, print them, copy them out by hand.

The Nonogram pictures are not ours. They come from game-icons.net, drawn by named authors and licensed under CC BY 3.0, which asks for one thing: the author’s name travels with the picture. It does — on the board, on the finish card, in the archive and in the footer of every printed sheet — and it has to keep travelling wherever you take it.

The word lists are other people’s work too: the English daily words are drawn from the English Speller Database (SCOWL, MIT-style licence), the English guesses from dwyl/english-words (Unlicense), and the Polish words from the sjp.pl word-game dictionary, used under CC BY 4.0. The full notices, the versions and what we changed are on the credits page.

Print what you will use, and put it where somebody will actually sit down and solve it: the kitchen table, a classroom, a club you run, a waiting room where they are glad to have it. Hand sheets out, photocopy them for a room full of people, staple them into a booklet for an event. None of that needs asking us — and if you do pass a printout on, we are glad rather than merely willing. One person handing another a sheet is how most people find a site like this one.

Which is also the ask: hand them to people rather than leave them lying about. A stack on a café counter is a kindness if you asked the café and litter if you did not, and a grid nobody solves is a sheet of paper for nothing. There is a fresh set here every day, so there is never a reason to print more than you will use.

Please leave the credit line at the foot of the sheet where it is. That line is how the people who drew the Nonogram pictures get their names, and it is the one condition their licence genuinely attaches.

We would ask for the header too, though that one is a favour and not a rule: the QR code up there is how whoever picks the page up finds their way to the rest of the puzzles. Without it a printout is a lovely dead end.

The only thing not to do is sell them.

Your results are yours to post anywhere. The share text is built to give nothing away — a shape, a time, a link, never an answer — please keep it that way, and keep solutions out of places where today’s players will read them before they have had their go.

Write to contact@playjustone.com. A board that cannot be solved, a picture that reads as something else entirely, a credit naming the wrong author, a streak that vanished — say which day, which game and which level, and it gets looked at. Reports of the boring kind are welcome too: typos, a broken link, a translation that landed badly.

These terms may change; the date at the top changes with them. If a change is significant it will be said plainly rather than buried.

You can stop using the site whenever you like and have your account deleted with it. We can close an account that is being used to break the rules above — in practice, that means the scraping and the door-rattling, not somebody having a bad week with Sudoku.

Polish law governs these terms, without prejudice to the protection you are entitled to under the law of the country where you live. The site is operated by: