A strange little side quest
Zoom out from Hidden Numbers-Rio for a moment and the timeline gets surprisingly deep. Alexey Pajitnov created Tetris in 1984 after drawing inspiration from pentomino puzzles, then simplified the idea around shapes made from four squares. The broader history adds one more wrinkle. Midway's Gun Fight from 1975 was the first arcade video game to use a microprocessor. Not bad for a few facts hiding behind a Play button.