Knotwilg wrote:Uberdude wrote:
(Joaz saying tenuki is bad because it's good for White to continue at N16 is also wrong and that's a common shape mistake as gives black the o17 s17 combo, n17 is the move there for white, but too early.
I included that shape remark in my reply as well but then had the lucidity to check it with AI too. Although kosumi is the standard, the double keima with its aji is playable too - you can check that
Yeah, it's far from a terrible move, but it's the kind of move where a strong player's eyebrows will raise with the knowledge it's not the proper shape move, so although it might look like it's getting more as going further and a stronger threat against the wall, it's actually a weaker threat with the aji it leaves that can help black to settle. I saw this happen in one of Blackie 9p's teaching games on twitch (in fact the corner died later!). There are probably some special situations where it's better than the kosumi, but I'd bet they are few and far between. One of the most common mistakes from my reviews as a low dan with Guo Juan was where I played some non-standard move because I thought the situation was special so it was better than the normal move, but often I was wrong and the bad aji from my trying-harder move came back to bite me in the arse (or could have if my opponent played better, sometimes I got away with it). Of course there's a balance between trying to find the 100% move, stretching yourself and going too far and failing and just always sticking to the boring standard stuff (the former led to one of the most exciting British championship finals in recent years and a painful loss, the later a more mundane game and my first and only championship win). But when you do play these kind of slight overplays, it's best to do so in the knowledge that's what they are and why the standard move is the standard move and this one isn't.