Logic Puzzles For Teens: Tetroid Puzzles (Paperback) (ISBN-13: 9781792971426)

Tetroid is a logic puzzle invented by Naoki Inaba (Japan). A rectangular or square grid contains black cells. The aim is to divide the grid into regions of exactly four cells, to form an L, I, T, S or O tetromino.Black cells do not belong to any tetromino. The tetrominoes may be rotated or mirrored. When two tetrominoes in adjacent regions share an edge, they must not be of the same type.

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Author: Orlando Parker
ISBN-10: 1792971427
ISBN-13: 9781792971426
Publisher: Independently Published
Language: English
Published: 12/31/2018
Pages: 116
Format: Paperback
Weight: 0.40lbs
Size: 9.00h x 6.00w x 0.28d