I have written about AlphaGo, which in its more recent incarnation threw aside all human guidance and became the world’s greatest Go player simply by playing itself a lot. It is better than the version that no human can beat.
This has now been generalized into AlphaZero, which “can achieve, tabula rasa, superhuman performance in many challenging domains. Starting from random play, and given no domain knowledge except the game rules, AlphaZero achieved within 24 hours a superhuman level of play in the games of chess and shogi (Japanese chess) as well as Go, and convincingly defeated a world-champion program in each case.”
I don’t have commentary to top the simple description.
Hat tip: Slate Star Codex