biased framework
In the diagram below, derived from Reducing Territorial Frameworks, p.21, Black has a framework in the lower right.
According to Fujisawa Shuko, 1 is the vital point for reduction. He says "anything deeper feels like an invasion". It looks like Black's marked stones are pushing toward the right-hand side, so to go in deeper would be to invite attack.
Compare this framework:
Here, White can go in a bit deeper, either at 1 or a or b, because the framework is biased away from the that area. The marked stones are pointing toward the right.
I was struck with this example, which I suppose illustrates direction of play, as it shows one way in which to decide where to perform a reduction. Does anybody know if there is a real name for biased framework? -- Tamsin
Shuko goes further:
Both 1 and b are acceptable reductions.
I should add that the book's examples only show the side stones and not the corner formations, and Shuko is a little vague about details, using only such phrases as "for a moyo on the left". But, what you can see from both examples is that if the moyo points "outward", then you can erase more deeply than if it points "inward".
--Tamsin
Charles I wonder what it does illustrate.
![[Diagram]](../../diagrams/40/5ea6f3d83ce4f34a849a286696f65156.png)
![[Diagram]](../../diagrams/19/f46595ea4ade4a9f07b1ad19a57f5072.png)
![[Diagram]](../../diagrams/21/be171b93de09fd5ecaa89924030dd7b8.png)
![[Diagram]](../../diagrams/29/06675ef652e6e924ea8cd60b1a3664ad.png)
![[Diagram]](../../diagrams/33/9c883fe18385f2e8b99d31bcdce331e9.png)
stone is sharp, because Black may feel like answering with
. If so, White can regard that as Black being forced, and play
next.
is out of position.
2024 the Authors,
published under the ![Sensei's Library [Welcome to Sensei's Library!]](../../images/stone-hello.png)