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Zokusuji
Path: Mistake   · Prev: TooClose   · Next: WeakGroup
    Keywords: Go term

Zokusuji literally means "crude line of play" and is often translated as "vulgar move". In Sakata Eio's Tesuji and Anti-Suji of Go, Bob Terry has translated zokusuji as anti-suji, because that seems to be the way Sakata intended it.

Sometimes the zokusuji (crude line of play) is the correct move. In that case we would call it a vulgar move. Most of the time, the zokusuji is incorrect, and spoils the correct line of play. In that case, we would call it anti-suji.

Although Bill has vowed not to quibble about it, we might come to a fine definition if he sheds light once more on the matter. Others literate in Japanese are most welcome too.

--DieterVerhofstadt


BillSpight: Bob may have other reasons for his translation. :-)
"Vulgar (line of) play" is the obvious translation and seems to fit ordinary usage, in my experience. In his book Sakata says that zokusuji involves a loss. But people will sometimes say that a play is correct, even though it is zokusuji (zokusuji nagara). Perhaps this is a case where the term has two senses.


An example of zokusuji, taken from Kanazawa Solution 34

[Diagram]
Diag.: 1: Tesuji

Using the snapback suji, White lives. Later on she will be able to capture a stone at a, or Black will have to waste a move there. Capturing two stones gives her five points. This is tesuji.


[Diagram]
Diag.: 2: Zokusuji

This is a crude move. Yes, it's atari, and Black cannot connect at a because he's in damezumari: White will capture four stones at b. But it is still a vulgar play, and the next diagram shows why.


[Diagram]
Diag.: 3: Zokusuji (continuation)

Black 2 forces White to capture two stones in order to live. White has only four points from the capture, and she has wasted the possibility of capturing an extra stone at 2, as in Diagram 1. By playing in a vulgar way, ignoring the tesuji, White has lost points, although the objective of living has been achieved.



Example 2, taken from endgame clamp:

[Diagram]
Diag.: Zokusuji (2)

Black 1 is zokusuji. It takes gote. White 4 is tenuki. Later Black 5 - White 6 is sente.


[Diagram]
Diag.: Tesuji (2)

Black 1 is tesuji. Black sacrifices that stone for sente.



Example 3 (See Extend from a Crosscut.)

[Diagram]
Diag.: Atari, atari!

Black can play kikashi with Black 1 - White 4, but he weakens his marked stone and leaves cutting points behind (marked). He can protect the cuts, but White is greatly strengthened.
Tesuji is to extend; atari atari is zokusuji. Comment: Sometimes atari-atari is correct, zokusuji nagara. --BillSpight



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This is a copy of the living page "Zokusuji" at Sensei's Library.
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