John Fairbairn wrote: Consider that lightvector referred to the surrounding-move line as creating a moyo. If I were bored I might quibble and say that it's now a jimoyo rather than a moyo, and if you insisted it was a moyo nevertheless, I'd ask about what O highlights: how then does White use his moyo? (The answer, of course, is that he has already used it to make a jimoyo - a territorial framework as opposed to a framework, which is by no means a bad thing, but recognising that does have implications for understanding the dynamism of the game as a whole.)
Bill Spight wrote: I think that the distinction between a moyo (framework) and a jimoyo (territorial framework) is significant. In this game Rin decided to protect the corner rather than make a jimoyo. Elf disagrees, and, I suspect, Jowa and other 19th century lights would have, as well, if they were to take komi into account. I think that the bots are telling us that jimoyo are not overconcentrated. By contrast, they do not value early moyo highly.
I agree the distinction between a moyo and jimoyo is important, and so don't agree with "fall in love with moyos like the one in Elf's line". I think it's more common for weak amateurs, particularly Tamekiya fanboys, to like the sort of loose moyo that bots and most pros tend to avoid these days because cutting them down to size through invasion/reduction is too easy. It's the patience to play the sort of consolidating/honte kakoi seen here (which I think bots particularly value as prophylaxis against opponent gaining in sente with effective reductions) that is lacking in weaker players. I wouldn't even say pros do it right an amateurs wrong, the pro did it wrong against PhoenixGo I linked above. I think I've heard via John / Charles Matthews that Seongjune Kim (Korean amateur 6d who lived in Cambridge before my time) said one of the key ideas that got him from 4 to 5 or 5 to 6 dan was essentially kakoi.Knotwilg wrote: A perennial difference between amateurs and professionals, which is echo'd by AI, is that amateurs will much rather fall in love with moyos like the one in Elf's line. Look at that grand area! Professionals care about thickness, territory, efficient shape ... like AIs do.