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Hardest Brain Teaser Puzzles: Stone on Stone Pu... 1723978620 Book Cover

Hardest Brain Teaser Puzzles: Stone on Stone Pu...

Edition Description

Stone on Stone is a logic puzzle invented by Nikoli. A rectangular or square grid is divided into regions. The goal is to blacken some cells of a grid ("stones") according to the following rules: - All black cells in a region must be connected horizontally or vertically...

Edition Details
Format:Paperback
Language:English
ISBN:1723978620
Format: Paperback
Condition:
$
12.49
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