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Paperback Hard Math Puzzles For Adults: Sujiken Puzzles - The Best Stress Relief Puzzles [Large Print] Book

ISBN: 1720012911

ISBN13: 9781720012917

Hard Math Puzzles For Adults: Sujiken Puzzles - The Best Stress Relief Puzzles [Large Print]

Sujiken (from Japanese "sujikai", literally "diagonal") is a variation of Sudoku, invented by George Heineman (USA). The puzzle consists of a triangular grid of cells containing digits from 1 to 9.... This description may be from another edition of this product.

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Format: Paperback

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