Hard Logic Puzzles With Answers: Stostone Puzzles 100 Logic Grid Puzzles With Answers (Hard Puzzle Books)
$10.84
(You save)
Write a Review
Independently Published
Hard Logic Puzzles With Answers: Stostone Puzzles 100 Logic Grid Puzzles With Answers (Hard Puzzle Books)
Stostone ("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 rules.