A strange little side quest
The mechanics around Crystal Hexajong have roots that stretch far beyond modern browsers. The name Tetris combines a reference to four-square pieces with Pajitnov's interest in tennis. It also connects to a different milestone: Pac-Man went on sale in 1980, and its creator Toru Iwatani famously linked the character's shape to a pizza with a slice missing. That long chain of experiments is part of why puzzles still feels fresh when a game finds the right twist.