Jim Bumgardner

About the Author

Jim Bumgardner, known to puzzle enthusiasts as KrazyDad, is a prolific creator of brain-teasing games and books that challenge the mind and delight the intellect. With a background in software engineering and a passion for logic puzzles, he has designed thousands of original challenges that blend mathematical precision with creative flair. His work spans digital apps and print collections, making complex concepts accessible and enjoyable for solvers of all levels. Bumgardner's dedication to quality and variety has earned him a loyal following among puzzle aficionados worldwide. In Krazydad Stupendous Suguru Volume 3: 108 Puzzles of Unusual Size, he presents an epic assortment of Suguru grids that test deduction and pattern recognition like never before.