A strange little side quest
A small trivia drop for QBlock Puzzle: Alexey Pajitnov created Tetris in 1984 after drawing inspiration from pentomino puzzles, then simplified the idea around shapes made from four squares. And then there is this: Spacewar! appeared on MIT's PDP-1 in 1962 and became one of the earliest influential computer games shared among programmers. The screen is modern; the urge to test skill, pattern and timing definitely is not.