Masyu (also known as "Shiroshinju Kuroshinju," "White pearls and black pearls") is a type of logic puzzle. It is played on a rectangular grid of squares, some o

A collection of seventy illustrated logic puzzles set in fantastic locales such as outer space or mythical kingdoms, with explanations of the logical reasoning

Math Bafflers requires students to use creativity, critical thinking, and logical reasoning to perform a variety of operations and practice skills that align wi

Fifth graders are no longer little children that need your guidance and attention. However, it's nice to know that you can still offer some help without the chi

Get your brain working with 200 grid-based logic puzzles from the Puzzle Baron! Filled with complex and fun brain teasers that range in difficulty, this book wi