I’d say 1 and 7 (for humans). The way humans understand go is different to how bots understand go. We use heuristics. The bots may use heuristics too but there’s no reason we could comprehend those heuristics. Considering the size of the state space it seems that the bot has access to ways of thinking about go that we don’t, the same way a bot can look further ahead in a chess games than we could comprehend.
I’d say 1 and 7 (for humans). The way humans understand go is different to how bots understand go. We use heuristics. The bots may use heuristics too but there’s no reason we could comprehend those heuristics. Considering the size of the state space it seems that the bot has access to ways of thinking about go that we don’t, the same way a bot can look further ahead in a chess games than we could comprehend.