The various types of Tetrominoes.
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Tetrominos, occasionally known alternately as Tetrads, Blocks, Tetriminos (official name), or Tetriminoes, are the blocks used in every known Tetris game. They come in seven shapes, all of which can be rotated and then dropped. Tetrominoes all have an area of four squares. In certain Tetris games, the colors of them vary.
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. TTC has trademarked the name tetrimino and uses the initial uppercase T.
The Basic Tetrominoes Edit
Each tetromino has a letter name and several alternative names.
In most games other than Tetris for NES, Tetris & Dr. Mario, or black-and-white systems, each tetromino has a different color. However, before about 2001, these colors varied from product to product, making it difficult for people who play different games to discuss "the blue piece". Since then, the color schemes associated with SRS and TGM Rotation have dominated new games, and "the blue piece" is always J.
The Tetris Company owns the copyright and trademark on all seven tetriminoes. The idea of tetriminoes is copyrighted to them. They were patented in 1996, but it expired two decades later. Another patent application was submitted in 2012. Tetris is still patented today, and the patent will expire in 2032.
If you know any other names for a tetrimino, list them in the section corresponding to the tetrimino.
Other names include straight, stick, strike, line, vav, final nun, one, the cyan piece, the long skinny one, tetril, TGM-red, hot shot, and long. It's the only one-sided tetromino that can clear four lines outside of cascade games.
Other names include square, block, samech, final mem, samekh, zero, sun, circle,or box. This is the only tetrimino where, when part of it is cleared, it is always split into dominoes.
Other names include The Tetris Block, Tetris logo, up, down, left, right, the magenta piece, Y, Y' T turn, ted, triangle, small stairs, pyramid, TNT-yellow, TGM-cyan, tire, tires, te, and tee.
Other names include the green piece, right turn, inverse skew, right skew, H, left N, Wa, saw, backwards-red, right dog, right kink, reverse squiggly, TGM-magenta, and right snake.
Other names include the red piece, left turn, outverse skew, right skew, S2, N, right N, Wb, zaw, backwards-green, lightning bolt, left dog, left kink, squiggly, TGM-green, and left snake.
Other names include the blue piece, lowercase R, gamma, ghe, ge, inverse L, Va, reverse L, left L, left periscope, led, left elbow, backwards-orange, backwards dalet, backwards daleth, backwards dales, backwards resh, or left gun.
Other names include the orange piece, alpha, outverse J, seven, Vb, L2, right L, TNT-magenta, right periscope, jed, right elbow, backwards-blue, dalet, daleth, dales, resh, reish, final kaf, final chaf, or right gun.
In The Next Tetris, Sticky mode of Tetris Worlds and Tetris Mania, and Jewelry Master, some tetrominoes are multiminoes, that is, the tetromino itself is divided into visible components. Though the tetromino is moved and rotated as a unit, once it locks, the components separate by colors and fall.
In Magical Tetris Challenge, there are minoes that consist of 5 to 25 squares to make the gameplay more challenging.
The "Heaven" PolyminoEdit
In "Tetris Heaven" as concieved of by Randall Monroe in xkcd.com/888/, the "Heaven Block" is the exact size and shape required to eliminate every open row up to the highest column. In most fanmade adaptions, the piece is portrayed as a single square when shown as coming next.
List of TetrominosEdit
Puyo Puyo TetrisEdit
T (ティ, pronounced as Ti) is the youthful pretty boy commander of the group, resembling Puyo Puyo's Schezo and Maguro.
O (オー, pronounced as Oo) is the ship's mascot that supervises the ship, resembling Puyo Puyo's Carbuncle.
S (エス, pronounced as Esu) is a space Sci-Fi Southern Belle type girl, with sharp abusive tongue and a Father Complex. She resembles Puyo Puyo's Raffine and Strawberryna, along with Rhythm Thief R's Maria.
I (アイ, pronounced as Ai) is the easily scared rat headed engineer, resembling Puyo Puyo's Risukuma Senpai.