Polyominoes & Polyhexes

A polyomino is a shape made up of squares. A shape made up of four squares is called a tetomino. There are five different ones; these are the shapes in the famous computer game Tetris. A shape made up of five squares is called a pentomino. There are twelve different pentominoes. There are innumerable brain teasers involving polyominoes, which challenge one's spatial reasoning in a quantitative fashion. A polyhex is the same idea, but using regular hexagons instead of squares.

Pentominoes Plus
$3.95
The classic Pentominoes, plus the other polyominoes made up of one to four squares. A different color of foam for each type of polyomino. There are nearly endless challenging brain teasers based on these intriguing shapes!
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Pentominoes Plus - magnetic version
$4.95
The same puzzle, but with magnet backing on the foam pieces.
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Wintertime
$3.95
This 10-piece foam puzzle, created originally by famed puzzle designer Stewart Coffin, contains all of the shapes (known as polyhexes) that can be made by connecting 3 or 4 regular hexagons in edge-to-edge fashion. The instructions show 8 different silhouettes with a wintertime motif. The challenge is to create these using the puzzle pieces. Ages 8 to adult.
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Wintertime - magnetic version
$4.95
The same puzzle, with magnet backing on the foam pieces.
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TetraMania
$9.95
Be warned: TetraMania can strike at any time! They look simple enough. Five shapes made up of four squares that can be arranged and rearranged to form hundreds of tempting patterns. 60 magnet-backed foam pieces. Ages 5 to adult.
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