Journal

Formula for Suitcase: Children + Tetris + funny stuff = Suitcase

We have seen how our children love to play with wooden block puzzles. And we remember our own childhood fascination with the game Tetris. Thus was born the idea of creating the game "Suitcase". At the heart of this puzzle is the famous puzzle Polyomino.

Polyominoes have been used in popular puzzles since at least 1907, and the enumeration of pentominoes is dated to antiquity. Many results with the pieces of 1 to 6 squares were first published in Fairy Chess Review between the years 1937 to 1957, under the name of "dissection problems." The name polyomino was invented by Solomon W. Golomb in 1953 and it was popularized by Martin Gardner*.

A polyomino** is a shape that consists of square units pasted together. It is an extension of the word domino, two squares placed side by side. But the word poly means many, hence we may have many squares arranged to form a particular shape. Can this piece be used, over and over again, to tile a rectangle? If so, the “order” of a polyomino is the smallest number of pieces that will tile a rectangle. It is notoriously difficult to determine the order of even modest polyominoes.

We used game figures composed of different numbers of squares.

Tetris 1 block

1 square

Tetris 2 block

2 squares

Moona_A Parcel_Suitcase_Five blocks

5 squares

* Martin Gardner (October 21, 1914 – May 22, 2010) was an American popular mathematics and popular science writer, with interests also encompassing micromagic, scientific skepticism, philosophy, religion, and literature—especially the writings of Lewis Carroll and G.K. Chesterton.

** Polyominoes are classified according to how many cells they have (1 - monomino, 2 - domino, 3 - tromino, 4 - tetromino, 5 - pentomino, 6 - hexomino and etc.)

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