A strange little side quest
One reason puzzles keeps producing good game ideas around 100 Doors Around the World 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. The timeline takes another interesting turn: In 1958, Tennis for Two used an analog computer and an oscilloscope to turn simple physics into a playable tennis-like demonstration. So a round of 100 Doors Around the World is not just a quick distraction; it is a tiny stop on a much longer puzzles timeline.
