I would call its style unorthodox rather than nonhuman. It still plays common josekis (standard opening sequences) but often chooses uncommon variations. Its mid game is full of startling moves backed by VERY good reading. There's definitely still discernible strategy that us mortals can learn from.
If I recall correctly, the version that beat Lee Sedol was trained on amateur games plus self-play. My guess would be that this new version relies more heavily on pro games.
If I recall correctly, the version that beat Lee Sedol was trained on amateur games plus self-play. My guess would be that this new version relies more heavily on pro games.