What kinds of unconventional chess problems exist? - Chess Stack Exchange

What are some unconventional chess problems that ordinary chess engines can never solve? I'm attaching two examples below so that you can get an idea. My students seem to love these puzzles. I'm

What are the most difficult variants of chess? - Quora

What are some of the strangest chess puzzles you've ever seen

rules - 5D Chess - Why is white king not in check in this position

Given a layout of chess pieces like in a tactics puzzle, how can one

The Project Gutenberg eBook of Chess Strategy, by Edward Lasker

Please help me to choose a book. - Chess Forums

If Mr. Niemann is not cheating, the magnitude of his achievement

Deep Dive: Will ONDC address the competition concerns in e-commerce?

Chess Quotes You May Not Have Heard Before