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Pages: 150, Paperback, Independently published
Independently Published
Mathdoku for Growing Players: A Collection of 100 Medium 7x7 Puzzles with Complete Solutions
Mathdoku for Expert Players: A Collection of 100 Hard 8x8 Puzzles with Complete Solutions
Pocket Size MathDoku: 100 6x6 Puzzles
Calcudoku Adult Puzzle Book: 1000 Easy to Hard (6x6, 7x7, 9x9) Mathdoku Puzzles
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