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50 Logic Grid Puzzles | Hours of challenging fun | Logic Puzzle Book for Adults: Fun and Challenging Logic Grid Puzzle Book: Lane, Milliwood: 9798806815775: Amazon.com: Books
Medium Logic Puzzles & Brain Games for Adults: 500 Puzzles & 12 Puzzle Types (Sudoku, Fillomino, Battleships, Calcudoku, Binary Puzzle, Slitherlink, ... (Challenging Fun Brain Teasers Series): Alzamili, Dr. Khalid: 9789922636085: Amazon.com: Books
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7 Super Fun Math Logic Puzzles for Kids! — Mashup Math
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Thousands of printable logic puzzles, IQ puzzles and math puzzles based on Japanese puzzles, for kids and adults