Question: do the tetris blocks have names?
Answer: 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 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.