Cool Brain Teasers - Sandra Berry - Books - - 9781717969163 - July 29, 2018
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Sandra Berry
Cool Brain Teasers

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Kojun is a logic puzzle invented by Nikoli. A rectangular or square grid is divided into regions. Some cells contain numbers. Each region must be filled with each of the digits from 1 to the number of cells in the region. When two numbers are orthogonally adjacent, the numbers must be different. The upper number of two vertically adjacent numbers in the same region must be greater than the lower number.

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Media Books     Paperback Book   (Book with soft cover and glued back)
Released July 29, 2018
ISBN13 9781717969163
Pages 116
Dimensions 152 × 229 × 7 mm   ·   181 g
Language English  

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