Last updated: 13th September, 2019
Information about your computer, including your IP address, operating system and browser type, is stored temporarily in log files and may be used for system administration purposes, such as diagnosing faults, analysing site statistics and maintaining security. This is common practice for almost every website in the world. The log files are kept for 3 days, after which they're deleted and the information is no longer accessible.
- Provide statistics for puzzles - number of attempts, average solving time, etc.
- Personalise ad content
- Collect any personally-identifiable information
- Collect any sensitive information
- Pass personally-identifiable or sensitive information to any third parties
The cookies used by this site are explained below.
This website uses a cookie that stores, on your computer, information about the puzzle you're currently solving. This cookie is used to gather statistics about the number of times each puzzle has been attempted and solved, as well as the average solving time.
In addition to the cookies above, this website stores the puzzle you're currently solving in your browser's local storage, if it's available, including any numbers you've entered, cage combinations you've faded out, etc. This enables you to continue from where you left off if you close your browser or switch off your computer and return to it later.
You can usually disable cookies by changing your browser's settings. However, doing so is likely to limit the functionality of this site and many others, as cookies are a standard part of many websites' operation. If you do want to disable cookies, you can learn how here.