Project - Biser free
1 Mar 2015
This test has ended17 testers reported on it.
Four squares can be assembled into a square twice the size (twofold square). You can assemble other figures. These figures are called tetromino. They are used in the popular game Tetris. Tetrominos can be assembled not only from squares, but also from other tetrominos (The doubling Polyomino task).