Before Sudoku: The World of Magic Squares by Seymour S. Block and Santiago A. Tavares | Science News

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Before Sudoku: The World of Magic Squares by Seymour S. Block and Santiago A. Tavares

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1:44pm, March 27, 2009

Fascination with sudoku puzzles is not new.

Oxford Univ., 2009, 239 p., $14.95.

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