Brain Puzzles For Teens: Island Puzzles (Paperback) (ISBN-13: 9781723935060)

Island (also known as "Tents Island", "Airando") is a logic puzzle invented by Naoki Inaba (Japan). It consists of a grid, with numbers in some cells. The aim is to blacken some cells of a grid according to the following rules: - The white cells form a single island. Each numbered cell must be a part of this island. - The numbers indicate how many unnumbered white cells can be reached from that cell by moving horizontally or vertically. Numbered cells block access.

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