Logic Puzzles For Teens: Tetroid Puzzles – Paperback-Fast Shipping

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by
Orlando Parker (Author)

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 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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Number of Pages: 116Dimensions: 0.28 x 9 x 6 INPublication Date: December 31, 2018