by Roger Barkan
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This book contains 100 elegantly designed Cave puzzles from US Puzzle Champion Roger Barkan. The puzzles range from easy to hard in difficulty, with hints for each puzzle in case you get stuck in a cave. With a mixture of clever visual and logical themes, these puzzles will take you from a rock breaking rookie to a spelunking superstar.
Download the free 5-puzzle teaser here.
Note: Print versions of this book are also available online by following these links:
and from other fine retailers.
(Original print version in January, 2017.)