Artificial intelligence is software that learns from examples to make choices on its own. Here, a neural network teaches itself to play Connect 4 by training against a simulated opponent over many rounds. A genetic algorithm drives the process — it creates many versions of the program and keeps the ones that perform best, gradually sharpening its choices. When a human player with a different strategy steps in, though, the human still wins. The network learned to beat one style of play rather than the game itself, which shows that AI decisions depend heavily on the range of examples it trains against.