A strange little side quest
Before the next round of Sudoku Legend, here is a piece of the bigger picture. The name Tetris combines a reference to four-square pieces with Pajitnov's interest in tennis. That old idea kept changing rather than disappearing. Spacewar! appeared on MIT's PDP-1 in 1962 and became one of the earliest influential computer games shared among programmers. Grombi files that under: small game, surprisingly large backstory.