A strange little side quest
One reason puzzles keeps producing good game ideas around Color Ropes Stitching is that its history is full of strange turns. The name Tetris combines a reference to four-square pieces with Pajitnov's interest in tennis. Another piece of context lands nicely beside it: Atari's Gran Trak 10 from 1974 is recognized as the first arcade racing video game. Not bad for a few facts hiding behind a Play button.