Tetromino

A tetromino, is a polyomino made of four square blocks. The seven one-sided tetrominoes are I, O, T, S, Z, J, and L.

The spelling "tetromino" is standard among mathematicians. The Tetris Company had preferred tetramino around 1999 and has used tetrimino since 2001.

http://www.viagra-advice.com buying viagra online :D http://www.orderlevitrapills.com/ buy levitra wwwg http://www.buyaccutane.net/ accutane :]] http://www.buypropeciahere.com/ generic propecia 33883

http://www.orderlevitrapills.com/ levitra 6861 http://www.viagra-advice.com/ viagra 8))) http://www.36hourpills.com buy cialis online 1311 http://www.buyxanaxnow.net/ order xanax 8-P

http://www.tramadol-pills-online.com tramadol =[[ http://www.36hourpills.com/ non perscription generic cialis %-OO http://www.meridiapills.com/ cheap meridia 439 http://www.phentermine-hcl.org/ cheap phentermine %O

External links

• Mathworld
• Wikipedia:Tetromino
• The Tetris Taxonomy: The Pieces (Adult audience)