Can you show the variations for this poking?

For such a large dragon and such a big loss giving up any side, I feel a human would almost certainly opt to take the ko. And for black to invest so many moves setting up a kill, I also feel black can not afford to back off either.

The question is how would the ko progress? I seriously have no idea. There are quite a bit of local threats as well as the whole right side for white, and quite a bit of local threats for black and some on the lower left. It’s really up in the air and hard to judge (and their value also quite hard to judge). White can not afford to lose this ko though, but it can possibly switch to other ko as well.

That much I gather, dig and clamp (K8 H8) what is the main line from the AI (bK8 wK7 bH8 wG8 bG10, it leads to a ko right?) AI doesn’t always find ko variations easily and often not that good when the winrate is far from even (although the point difference might still within human, especially amateurs range, like ± 10 points going into yose)

The thing is that if it becomes a ko, white doesn’t actually have to save both sides, but can leverage that and make an exchange for the whole upper right black group. I haven’t counted, but feels like roughly an even trade. And we are back to count the ko threats if black didn’t want to sacrifice the upper right and continue the ko. (or if it is not an even trade? and we are up to yose)

From the last black move, I assume it has something to do with the whole center white group’s life and death. I haven’t read it out, but looks like it might eventually be a ko in the center (very big ko)

Hmm, from I remember, black seems to be able to play bN8 after the bO8 bO7 (if white choose to play wL11 bK11, wK12 to cut off the black (or if white doesn’t respond locally, black can just easily connect back, and white is already too far behind), And L11 is where AI seems to be blind to life and death, and shorten its own group’s liberties.

If white doesn’t choose to take the 3 black stones after the bO8, bO7, bN8, and choose to continue to push P8, black can just block with P9. White has to connect M8, and black can play L10, and white cannot connect M9 (or black connect N5 the whole white group dies). And white would have to capture with N5, black can throw in M9, wN9 capture, bO9, white again cannot connect M9, or bO4 kills all. Hence, the only option for white is to play O4, and black would be able to kill all the M10 white group stones. (this is effectively connect and die problem, and the commentator that day, along with Fujisawa I think, all read these out)

Hence, the best option to keep that M10 group and minimize the lost is to play N5 to capture 3 black stones first right after black K14, and let black to cut off the two K15 K16 white stones (Fujisawa had the chance to save those two stones before, and the game might go into yose, but she played H15 and allow Ueno to push and cut)

I can say quite a lot about players and students shouldn’t use AI to learn, like you shouldn’t use AI to judge every 0.1 or 0.5% winrate loss or even just mistakes differ less than 2 or 3 points. Or try to research branches in joseki that have similar winrate, and just pick whatever without understanding the surrounding stones associated with each choice, or just try to justify overplay in your own games, despite it creates early fighting or variations that you obviously aren’t prepared for (like don’t jump out and simplify the situation and insist on fighting it out, without the reading skill). If you cannot follow the logic, even for pro’s moves/tesuji, that would confuse you and even make you play worse, since if you cannot internalize them, it would simply put doubt in your own judgements.

You have to be able to play them out much further down the line to see where the punishment lies in these recommendations, or they won’t mean a thing or be helpful. A number is just a number and during the game, you won’t magically get a sense of these numbers in your head. You will still need to see the shapes and reading them out. Help to find local weak spots are probably the best use. But be sure to settled positions elsewhere, or use localized suggestion filters, to help only finding those local position analysis. For the whole board judgement, players usually need to be high dan or above to really appreciate the reason for early tenuki, and leaving aji.