Joseki

British Go Journal No. 0. Spring 1967. Page 4b.

Handicap (4-4 point)

Part B

This article continues from part A.

The [5 main variations] symbol links to Dia 20 where selection of the 5 main variations discussed is possible.


Diagram 20



[White 5 at I]

[White 5 at H][White 5 at F][White 5 at E]
[White 5 at G]

(E,F,G,H,I are links.)

Options for White 5: E, F, G, H & I.


[5 main variations] White 5 at F

Diagram 21









This direct invasion of the corner is often played if White has a stone at triangle or thereabouts, it gains a more stable group but solidifies black more.
Diagram 22










From Dia 21
Diagram 23










From Dia 21

(1) Black 1 in Dia 22 takes the corner completely and safely. Here both gain a large potential.

Or Dia 23. Black 7' may be at triangle

Diagram 24










From Dia 21
Diagram 25










Variation in Dia 24

(2) In Dia 24, white 4 protects all the cutting points. The 7, 8 exchange is very important as it restricts white along the side and if White does not answer with 8 then black 9' at 8 and white 10' at J, black 11' at R is very bad for White.

Black 5' at 6 in Dia 24 is impossible, as shown in Dia 25.

Diagram 26










From Dia 24

Later white can take the corner with 1 to 5 as Black cannot stop him once he has cut, or Black will play S taking the corner.


[5 main variations] White 5 at G

Diagram 27





If black 6' at E and white 7' at F this transposes to Dia 24.

Diagram 28







From Dia 27

BGJ only had moves 1..2, moves 3..7 complete the joseki.

Diagram 29







From Dia 27
Diagram 30







Variation in Dia 29

In Dia 29, Black cannot play 3' at U otherwise Dia 30 loses the corner and gets no compensation.


[5 main variations] White 5 at H

Diagram 31





This sets out to test Black's response in order to gain later on.

Diagram 32










From Dia 31
Diagram 33










From Dia 31

(1) Black 1 takes the side whilst ceding the corner. However it loses something in comparison with Dia 24 above, as White plays 2..6. Not 6' at T in this case as now the threat at I does not exist. So Black 1 is not usually played unless Black has a stone at P already.

(2) Black 1 in Dia 33 is better, however in attacking the lower white group, Black permits a small but live group in the corner.
Then White 2 ensures life and after white 4 Black is left with reducing plays for later on.

Diagram 34








Variation in Dia 33
Diagram 35








Variation in Dia 33

Or Dia 34 where black 3 permits White a tiny group up to 8, and leaves a white sente play at U. White 10 stabilises this group.

In Dia 35, White plays 2 wishing to retain his stones on the lower side. Up to 7 Black has the corner, however White may play A..C reducing the corner by about 6* points, so Black should play Dia 36 quite early on.
* BGJ illegible, may not be '6'.

Diagram 36








From Dia 35

Or White 4' at T.


[5 main variations] White 5 at I

Diagram 37







Here White plays for influence along the lower side, but leaves Black with all the corner.

Diagram 38








From Dia 37
Diagram 39








From Dia 38

If Black 1' at Q, white 2' at 1 transposes to Dia 19. If black 3' at Q white will cut at 3 for a big fight which Black does not usually want. White 4 takes influence and possibly territory along the lower side. This leaves the reduction of the corner as Dia 39 which is similar to Dia 35.

[Start]


This article is from the British Go Journal Issue 0
which is one of a series of back issues now available on the web.



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