I have a book of these on my desk right now. If you are not in Japan, I highly recommend ordering directly from the publisher. The books usually have English ru

I have a book of these on my desk right now. If you are not in Japan, I highly recommend ordering directly from the publisher. The books usually have English rules, but if not they are available on the website. It is really nice taking a break from screens and chipping away at a few puzzles.