Notices

Sources, rights and privacy

Sources and rights

Several books in the library are worked solutions to puzzles first set by others: the Riddler at FiveThirtyEight, the Fiddler on the Proof, Jane Street's monthly puzzles, the Museum of Mathematics' Monthly Mindbenders and classic puzzle collections. Each book names its source. The problem statements belong to their setters; the solutions and commentary are my own. These books are free to read and are not sold.

If you hold rights in any material here and would like it attributed differently or removed, email jvvk.books@gmail.com and I will act on it promptly.

This site is personal. Views are my own and do not represent any employer.

Privacy

The site sets no cookies and runs no analytics or advertising scripts. Pages are served by Netlify, which keeps standard server logs.

When you report an error, the form sends what you type, the page you were on and, only if you give it, your email address to Netlify Forms, which stores the submission on servers in the United States. I use it only to correct the page and, if you ask, to reply or to thank you by name. Ask at the address above and I will delete a submission.