A strange little side quest
A quick detour while Four In A Line waits for your next move: Modern chess traces back to the Indian game chaturanga, recorded around the sixth century and built around pieces representing parts of an army. The same trail leads to another fact: Midway's Gun Fight from 1975 was the first arcade video game to use a microprocessor. The screen is modern; the urge to test skill, pattern and timing definitely is not.