So my partner and I thought it would be great if we could do some maths problems over Skype while we are apart (long distance). We'd like some recommendations on problem books that are ideal for working on together. We know there are quite a few questions online for best puzzle books in general but we'd like to know of any that have been written for or are suited for couple solving.
We are both fairly proficient in general but are not experts in any one topic. Ideally, the book should cover multiple fields with fairly difficult logic/maths problems.
As a starter list, what do people think of:
- Raymond M. Smullyan - The Godelian puzzle book
- Peter Winkler - Mathematical puzzles a connoisseur's collection
- Raymond M. Smullyan - What is the name of this book?
I'm aware this is a rather strange request but thought it was worth asking just in case.