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More number-based logic puzzles than you can count!

About the Author

Stephen P. Ryder is the founder and editor of the Puzzle Baron network of websites (PuzzleBaron.com). These sites focus primarily on textual games and puzzles, including acrostics, cryptograms, logic puzzles, drop quotes, sudoku, patchwords, and many more. The Puzzle Baron network serves more than 6 million visitors annually, along with an extremely dedicated user base of more than 50,000 registered players who compete against each other for record scores and times.