[awwducks]

> Learning (viewing millions of professional game moves)

According to the last press conference, it was apparently strong amateur games from the internet that it used to train with. Afterwards, it just played itself, as you mentioned.

[thomasahle]

Yes, that was surprising to me as well. It seems unfair to not give it access to the thousands of years of knowledge in the go community, though even more impressive that it still plays so well.

[visarga]

I think self play games would be an even better source for learning because they are at 9p level, not amateur.