A strange little side quest
Between one round of Super Jump Bros and the next, this is worth knowing: The name Tetris combines a reference to four-square pieces with Pajitnov's interest in tennis. The broader history adds one more wrinkle. Boxing was part of the ancient Olympic Games by 688 BC, long before gloves, weight classes, or timed rounds existed in anything like their modern form. It is a good reminder that simple game mechanics can carry a surprising amount of history.