Related: One of the subniche in the Tetris communities is Tetris art / pattern creation, i.e. drawing predefined patterns while playing the game (almost) normal

Related: One of the subniche in the Tetris communities is Tetris art / pattern creation, i.e. drawing predefined patterns while playing the game (almost) normally. One of most practiced pattern is the chevron, where you draw a > shape with holes, but otherwise fill the whose board. This stemmed from the Japanese arcade version of Tetris by Sega (or Segatet for those in the known). This version was hugely popular in the arcade (it stayed for an incredibly 10 years in the top100 earner in some arcade magazine), and some player were destroying the game so much that they invented this challenge. This was recognized in Segatet successor Tetris the Grand Master (TGM3), and formally named "Secret Grade". One example here: https://www.youtube.com/watch?v=ZgzcAkjp0J8 https://www.youtube.com/watch?v=ZgzcAkjp0J8 , and another there with TGM3 signature speed https://www.youtube.com/watch?v=32wzKc0cHQU https://www.youtube.com/watch?v=32wzKc0cHQU . But in general, Shuey is the master of arbitrary making pattern. Look at him drawing a Luigi: https://www.youtube.com/watch?v=_tipJDjeKuY https://www.youtube.com/watch?v=_tipJDjeKuY . Note that since then, an algorithm for arbitrary pattern generation has been devised by Michael Birken: https://www.youtube.com/watch?v=PJkHwulsac4 https://www.youtube.com/watch?v=PJkHwulsac4 (sort of related: the playing forever algorithm may be interpreted as a pattern creation https://tetris.wiki/Playing_forever https://tetris.wiki/Playing_forever )