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Binary: 200 Expert Puzzles 7x7 vol. 4
Paperback
Series: Binary Puzzle, Book 4
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Publisher: Independently Published
Published: Jun 7 2020
Pages: 138
Weight: 0.43
Height: 0.30 Width: 6.00 Depth: 9.00
Language: English
- Each row and each column contain the same number of digits 1 as digits 0 (or one more for odd sized grids).
- Each line must be unique, and each column must be unique.
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