The Computer Game TETRIS Involves Blocks Made Of Four Squares. Each Square Must Share At Least One Side With Another Square.How Many Different Configurations Are There In The Game?


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Oddman answered
Assuming you don't count the various rotations as being different, you can have ...
Left and right L,
Left and right Z,
T, I, and 2x2 square, for a total of 7 configurations.

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