BQM 605
When to play the 3-3 approach
The 3-3 approach is a good approach globaly speaking when White has a stone along the side such as
in the following diagram (i.e. a 54113 enclosure).
The 3-4 approach
Even though the 3-4 approach is feasible, as shown in the following diagrams, Black ends up with a bulky group without any eyeshape which will be quite a burden to take care of. That is, play the 3-3 invasion to avoid becoming heavy.
(Joseki line reference at 4-5 point 4-3 approach keima, contact at 3-5, hanedashi. Charles)
Charles: I'd like to comment that this discussion provides two examples of blocked configurations. Firstly, as far as I can see, Black simply never plays now into the 4-3 approach (last example dates from 1772). And consequently the framework with
isn't seen in pro games (last example I've seen is from 1961). Effectively the pros say '
is a hamete, and the 3-3 approach a refutation'.
Floris:
Yes, the
stone isn't in a very good position, and when Black does then invade at 3-3 as shown, you can see the stone is in a very inefficient position.
![[Diagram]](../../diagrams/40/bc60746f942cb755d54be131b68d6444.png)
![[Diagram]](../../diagrams/46/b620612c8247680550f17fadf91b38e4.png)
![[Diagram]](../../diagrams/0/ae89a689ebd6a81e1ba642142a8f492e.png)
![[Diagram]](../../diagrams/20/2af73570238ccc0aeeade5a7150f7be3.png)
![[Diagram]](../../diagrams/45/647dd828f0aafaead6e188866b0c60f9.png)
![[Diagram]](../../diagrams/47/dfb2aba1442d3031c021e1e7244d5100.png)
here.
![[Diagram]](../../diagrams/46/8e2d300aa4cf09c241caf45ad1145747.png)
2024 the Authors,
published under the ![Sensei's Library [Welcome to Sensei's Library!]](../../images/stone-hello.png)