Fun Puzzles And Brain Teasers: Sandwich Puzzles

By Marcus White

Sandwich is a logic puzzle invented by Naoki Inaba (Japan). A rectangular or square grid contains numbers in some cells. The task is to blacken some empty cells according to the rules: - All white cells must be divided on regions having the size of exactly three cells. - Two black cells must not be orthogonally adjacent. - Each region contains a number. - A number indicates how many black cells share an edge with that region.

• Format: Paperback
• Language: English
• ISBN: 1726646637
• ISBN13: 9781726646635
• Release Date: October 2018
• Publisher: Independently Published
• Length: 116 Pages
• Weight: 0.40 lbs.
• Dimensions: 0.3" x 6.0" x 9.0"