Contact us
Last updated:
The best way to reach us is by email: [email protected]. We usually reply within 2–3 working days.
What to write to us about
- Bug reports. Tell us the device, browser, difficulty mode and level number, and what happened. Because levels are generated from a fixed seed, the same mode and level number always produce the same board, so we can reproduce it exactly.
- Translation corrections. The game is available in 18 languages. If a sentence sounds unnatural in your language, send us the page address and your suggested wording.
- Gameplay feedback. Is a mode too easy, the timer too strict, a level unfair? We read every suggestion.
- Privacy requests. Questions about data or requests under the GDPR, UK GDPR or US state privacy laws. See also our Privacy Policy.
- Business enquiries. Licensing the game or embedding it on another website.
Tips for a quick answer
Please write in English or Chinese if you can; messages in other languages are welcome too and will be answered with the help of a translator. Include screenshots if something looks wrong. We will never ask for passwords or payment details by email.
What we cannot help with
We cannot restore lost progress, because it is stored only in your own browser and never reaches our server. If you clear your browser data or switch devices, the game starts again from level 1 – but you can use the level arrows to jump back to any level you have previously unlocked on that device.