One address, read by the person who wrote the code
There is no support desk, no ticket number and no automated reply. Mail goes to the same person who maintains the geometry code and the guides, which is why a precise report gets a precise answer and a vague one sometimes gets none.
The address
Plain text is fine. A photograph of the printed sheet — especially one with a ruler next to the 100 mm bar — is worth more than three paragraphs of description.
Check these three first
Most messages are one of three problems, and each has a written answer with the numbers already worked out:
| What happened | Read this |
|---|---|
| Pieces do not fit together | Print scale — the sheet came out at about 94% |
| Pieces tear or bend at the tabs | Paper weight — 80 gsm cannot survive a solve |
| The photo looks soft or blurred on paper | Photo resolution — usually the crop, not the camera |
What to include in a bug report
Five things, and the report becomes actionable without a follow-up exchange:
- Browser and version, and whether it is mobile or desktop.
- Printer model, and whether you printed from the browser or saved to PDF first.
- Paper: size and weight in gsm if you know it.
- The settings you chose — sheet, grid, piece count, cut style. They are in the address bar of the generator, so the whole URL is enough.
- What you expected and what happened, in one sentence each.
For a measurement that looks wrong, the useful detail is the number you measured and the tool you measured it with. A 100 mm bar reading 94 mm on a steel rule is a printer setting; reading 100 mm while the pieces still do not fit is a geometry bug, and a much more interesting email.
What does not get an answer
- Custom puzzle orders. Nothing is printed or shipped here; the site produces a file.
- Requests to remove a watermark. There is no watermark on the print output.
- Advertising and link placements. There are no ads and no sponsored links on this site, and that is not currently for sale.
- “Is this down?” with no detail. If the site loaded enough for you to read this page, it is up.
Reports that are genuinely useful
Three kinds of message have made this site better, and all three are welcome:
- A printer that clips the calibration bar. Some cheap inkjets have a 12–15 mm unprintable margin, and the bar sits 10 mm in. Naming the model turns an anecdote into a documented limit.
- A number in a guide that does not match your measurement. The tables are arithmetic, not estimates, so a disagreement means one of them is wrong and the guide should be corrected.
- A browser where a file format fails. HEIC, for instance, only decodes in Safari; the site says so rather than failing silently, and knowing which formats fail where is worth recording.
Before you write, print one test sheet
A single A4 at 100% scale tells you whether the problem is the printer or the file. It takes two minutes and it makes the email shorter.