https://senseis.xmp.net/?ChisakusFamousSacrifice
Okunuki Chisaku’s eighteen-stone sacrifice from an 1810 game against Hayashi Genbi.
Morning, studious silkies~
Takao Shinji (W) vs. Yoda Norimoto, 52nd Oza semifinals
Yoda played ① without reflection, based upon his memory of an ancient game, and ended up losing the marked stones. Extending to ② was correct.
Hmm, what to study today?
I wonder whether I should try to get some use out of my 1976 game compilation.
Fujisawa Rina (B) – Fukuoka Kotaro (+), Kisei League C, last month
It’s not often that you see two 4 vs 1 corners on the board together. The lower left was Black’s shimari that White exchanged against at D4, Black later following up. The top right was a taisha offer by White that Black ignored.
I should try to get to grips with this “joseki”.
I first saw it only a couple of months ago, in an amateur game. Later I noticed Shibano playing it in the Gosei match, and now it’s come up in Kosumi’s game.
I don’t imagine Waltheri is going to be a great source of info on such a modern play, but it’s a place to start.
This is an AlphaGo Master enclosure joseki and I think you can find it in many games from the last 3 years (pro games, but also amateur dan games).
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I get the impression that it only became popular this year. Perhaps I’m wrong.
I don’t think I’ve come across it in earlier games. People used to play the R17 cut line (although that hasn’t disappeared) or else just leave the shape alone, in my experience.
I think InSeong spent at least one lecture in 2018 or early 2019 on the variations of the 4-4 attachment against the large knight enclosure.
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Ah, a shame that’s a paywalled resource. Thanks anyway.
IIRC Michael Redmond also showed some variations in a couple of AlphaGo videos on the AGA YouTube channel and/or his own channel.
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This is an AlphaGo Master enclosure joseki and I think you can find it in many games from the last 3 years
Hmm, only 35 games in Waltheri (with the tightest area search) and none with Master. I think Waltheri has the Master games.
Didn’t Waltheri’s remove Master’s games? I suppose DeepMind’s teaching tool has some instances.
They did? I never heard about that.
I guess all the AlphaGo games were removed, then. A strange choice.
I think it makes some sense. If you include AI games, it becomes a different kind of database.
I consider the AlphaGo vs Fan Hui match, the Master / Magister series, the Ke Jie match, the AlphaGo self play games, the Cho Chikun vs Zen match, and the Lee Sedol vs Hangol match to all be of popular and historic interest.
I would’ve kept them in.
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About your diagram: I thought the cut at R17 is a common probe before deciding whether to push at P15?
It can be. Now that I think on it, I remember that Shibano probed there first in that Gosei game (as it was actually Shibano and not Ichiriki).
OJE also has some variations: Play Go at online-go.com! | OGS
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What is perhaps not realised is that this ((element of chance due to fighting)) exists even if you choose not to fight. In any situation you can work out your likelihood of winning if everything proceeds smoothly without fighting. You might say that if you are ahead then you should avoid fighting. However your opponent could choose to fight and the only way to avoid fighting is to play moves that don’t give them the opportunity. In that case you might have to play moves that reduce your likelihood of winning.
To win a game of Go requires you to play on the knife-edge. If you push too far then you instigate fighting that may be unfavourable (but probably unknowable exactly), however if you don’t push far enough and avoid allowing your opponent to start a fight which may be unfavourable to you then you give up a little with each move and guarantee a loss.
If you have a favourable position then your opponent will have to instigate fighting. The only way to avoid fighting is to allow your opponent to feel that they have good chances of winning without fighting.
The ((skill)) is to make moves that shift the balance in your favour. If that means starting a fight that you are slightly more likely to win then that is still skill.
And the best method to beat ((the type concerned with balance and harmony within themselves)) is to upset the harmony and force them to fight when they don’t want to. If they are really strong then they will show their reading ability and that their desire for balance comes from hidden fighting ability. However most people (amateurs) who seek balance above fighting do so because they can’t fight well.
– Barry Phease on the topic of rich men and quarrels, r.g.g., in or before 2001; the double-bracketed interpolations are additions by Dieter
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Another morning, another day of wondering what to study. If I add one more professional to Sensei’s Library then I’m going to finally lose one of my eyes.
I might graze L19 for a bit. I’ll probably stroll the RandomPage for a while as well, but that’s becoming a time consuming habit as I feel the urge to update old pages with photos and new ranks.
Anyway, I found this excerpt from the AGA E-Journal 2008, which I think I’ve only lightly touched in the dedicated thread. It was linked on stet’s SL homepage.
“When you sit down to play a game is your aim to win the game or to become stronger? You probably think you can do both, but these are quite different projects.
The problem with trying to win – besides the fact that it makes it hard to enjoy the game – is that you don’t trust your feelings about where to play. When you look over the board there’ll be a place find you want to play, but if you’re concerned about winning, you’re not going to trust your feeling. You’ll think and analyze and nervously play somewhere else. This is a terrible way to play go.
You should look at the board and play wherever you want to. This is the way to get stronger. I say this everywhere I go, around the world, but no one believes me. Nevertheless it’s true. Of course, when you do this, you’ll lose a lot of games. So you have to review the games. That way your feelings about the game will get better and you will not only get stronger, you’ll also find that playing go is a lot of fun. And you’ll win more often. This is go the natural way.
Don’t worry about territory. People say that the player with the most territory wins but this is not true. It’s the player with the most territory at the end who wins. The way to win is not to worry about how much territory each player gains. The key is making good shape. If you learn how to make good shape all over the board, you’ll be the one who wins.”
– Takemiya, speaking at the USGC
Compare Jowa’s Go advice:
There are both right and wrong ways to study. If you aspire to the right way you will improve. If you aspire to the wrong way you will deteriorate. The wrong way refers to being profoundly greedy. Greed refers to a way of playing which arises by trying to discover moves that are hard to see and thus drawing things out. They are moves you will not see, unless you know them, no matter how much you think about them. Therefore, the more you play this way the more you deteriorate.
The right way refers to not being profoundly greedy. That skill lies in concentrating on a way of playing in which you play faster. When you play quickly, there is no time for greed to emerge. If greed does not emerge, the way you are playing will be better and you will progess to the next stage.
… concentrating on taking territory … [is] bad. For the territory taken will have defects … Therefore, do not worry about taking territory … the first requirement is to defend and solidify your own groups
This sounds like a very similar idea to me.
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