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

Spend hours solving over 400 various puzzles in the Puzzle Baron's largest offering yet! The Puzzle Baron is at it again—creating puzzles his puzzle followers

Balance Quest is a numeric progression puzzle consisting of a set of rectangles arranged within a hierarchical grid. Some of the rectangles contain positive or

It's only logical--boost your brainpower with 150 logic puzzles for adults. It's time to give your mental muscles a real workout! Stuffed full of clever and cun