![[Diagram]](../../diagrams/48/4944c865ae31d3fefa4e7802b6d32102.png)
Common Invasion/reduction sequence
![[Diagram]](../../diagrams/19/5b113583cf9bf4f9d931fed05292558b.png)
Common Invasion/reduction sequence 2
This sequence is from Yang Yilun's The Fundamental Principles of Go, and it seems like a reasonable reduction since the marked stone is greatly weakened. However, when played against a large knight's enclosure...
![[Diagram]](../../diagrams/0/d5e8e14cf3e6081a238b7909d1f80c41.png)
Common Invasion/reduction sequence
He lists
as the proper move. I can see that white has adequate resources after this.
![[Diagram]](../../diagrams/10/252238808c18690056c4c408ffd9e063.png)
My question
However, this implies that white can get a better result if black plays in this way.
![[Diagram]](../../diagrams/34/4b3ff528349e7e9758b9f3ef76105239.png)
My question 2
If white follows the same sequence, the circled stone is farther away, and ends up attacking white rather than getting weakened. How should white play then to take advantage of the squared stone?
-- Shaydwyrm
![[Diagram]](../../diagrams/25/82aaf559a41fc17983175cd7cb8630f8.png)
My answer 2
Bill: If the ladder works, White can play
-
, threatening
or
.
![[Diagram]](../../diagrams/2/e2a85a79ba9229d67cba7ed2fc768441.png)
The cut
Dieter: I think the question is: can
cut?
![[Diagram]](../../diagrams/16/6c93240f89f7414b0a84630b6f646103.png)
The cut - var 1
In this variation, White gets a forcing? sequence with
,
and
, before protecting at a (b?) and stabilize rather easily in the corner.
![[Diagram]](../../diagrams/15/852c90a0f96352507ac17732d38c22ab.png)
The cut - var 1a
Bill: I kind of like
. :-) Play might continue as in this diagram.
![[Diagram]](../../diagrams/25/bf7d4d486a6c9bdb9907ae85ced84111.png)
The cut - var 2
This variation looks more dangerous ... but for whom?
![[Diagram]](../../diagrams/39/9000ee7f4b44a1966a53f02210fdaae9.png)
The cut - var 2.1
![[Diagram]](../../diagrams/1/dd36b30668ccfb248f1f698195532c67.png)
The cut - var 2.2
I think
fails.
![[Diagram]](../../diagrams/17/04a2bf4f45a5984b2b586e65c00c2254.png)
The cut - var 2.3
here also doesn't look very healthy.
![[Diagram]](../../diagrams/2/65e611f3adc9baf9fb0485dbc195df64.png)
Common Invasion/reduction sequence
The cut at
miserably fails when
is one line closer as in this diagram.
Dieter: I'm going to reread now.
Shaydwyrm: Thanks for your insight! I can find no fault in your reading as yet, you have been very comprehensive.
![[Diagram]](../../diagrams/43/f3c4075de8ce21b4c843f1b477418838.png)
Common Invasion/reduction sequence
This is, unfortunately, the move I had overlooked originally...