Kikashi / Examples

Sub-page of Kikashi

Examples

[Diagram]
Kikashi  

Before living with W3, White makes a kikashi with W1. This is an example of the proverb play kikashi before living. This serves as a peep at the Black's tiger shape, forcing Black to answer at B2. It also has a local achievement too: by connecting the white+circle stone in sente, it enhances the strength of the White wall. As W1 is part of the White's wall, the proverb on sacrificing kikashi stones does not apply in this example.

[Diagram]
Kikashi  

Later, the peep at B4 is another typical example of a kikashi. Due to his marked tiger shape, White is already connected, and there is hardly any aji left in this position. So Black's move is justified: he forces White to confirm the choice she already made: connect her stones.

B4 does several things at a time: it destroys some eye shape, and it can serve as a ladder breaker later, or be a stone that is just in the right spot to win a capturing race. But B4 is a stone to be treated lightly. It is not an important stone. It is a kikashi stone.


Enfors: Let me see if I get understand this properly. The point of B4 is not to make white play at W5. The point of playing B4 there is that it might become useful in the future, and it is the fact that B4 forces white to play at W5 which enables black to play at B4 without losing sente. Correct?

Phelan: Correct. :)


[Diagram]
More kikashi  

Suppose White is ahead in territory but Black has more influence. With W1 and W3, White forces Black to take some territory at the top. After his submissive answers, she jumps to W5. Her stones W1, W3 and W5, will have some influence on the proceedings in the center. If Black makes an attempt to capture W1 and W3, they should be sacrificed in order to strengthen W5.

Bill: W5 looks peculiar, doesn't it? Don't we have any good examples from pro games?

Dave: With W5, White pulls out the stones played earlier - this is not kikashi. Compare this example from the 7th Honinbo title match. Black plays kikashi with a similar shoulder hit and then abandons the kikashi stones in order to invade the corner.

Bill: Great example, Dave! :)

JohnMoser: I have to agree with Dave. The area marked .C seems to represent territory dispute. This could be destroyed territory (stones there, adds to no one's score) or captured territory (surrounded). If white captures B1 and B3, it can gain those territory as score; if Black connects B1 and B3 to B5 and fails to form territory in that area, White still fails to gain territory from the exchange as well. B1 and B3 could be worth 5 or 10 points.

[Diagram]
Takagawa - Hashimoto U. 1952-07-09  


Dave: Later in the game White starts to play against the kikashi stones but both players treat them lightly. With B4 Black is willing to let White cut off the two stones. However, W5 shows that White has no interest in such a small-scale capture.

[Diagram]
Kikashi stones are light  

Disposability as middle-game Joseki

[Diagram]
Forcing moves  

In this position, Black has a few forcing moves. He starts off with B1. If unanswered, White's position would completely crumble. B3 then forces White to take the two stones. White may decide (but is unlikely) to abandon her three stones, depending on the rest of the top side. Next, B5 forces once more to effectively take the stones off the board. Next, Black can play along the left side or connect around a.

B1 and B3 are mere sente moves, moves that are played to keep the initiative while building the position. B5 is the only example of kikashi, because the stone is treated as disposable:

[Diagram]
Forcing moves  

Later, close to the endgame, this may be played. The added value of black+circle is that it makes B2 sente again, compared to if Black had not forced White to capture as in the previous diagram.

[Diagram]
Cho Chikun - Yamashita Keigo  

In a game vs. Yamashita Keigo in the 29th Meijin league, Cho Chikun plays kikashi with W1 - W7 before strengthening his center group with W9. (See commentary at [ext] http://www.asahi.com/igo/meijin29/16/05.html.)

Despite the proverb about sacrificing kikashi stones, only W5 is in any danger.

LukeNine45: Are these really kikashi? It looks to me like White is just taking all the free moves he can before playing W9.

Bill: Yes. The commentary says, 右辺を白70から76と利かし . White plays kikashi on the right side with W70 - W76.

My own comment is that these plays are more urgent because of White's running group. After White secures the group, they might not be so urgent.

LukeNine45: Interesting. I guess I'll have to think of kikashi as having a broader meaning. Thanks!

[Diagram]
Big Bulge Peep  

B1 is a peep. Black can sacrifice B1 with b and d after White a.

From Charles Matthews - Shape Up! (p.48)

By the way, thank you for this excellent book. QWerner

Also, I think this is a 100 day thinking example for kyu players. What is inside: 1. Kikashi ofcourse. 2. Shape, one way to use the Big Bulge and how to set it up. 3. Double purpose move. Not only in sense of the normal meaning of double purpose move. More in sense of the time changing purpose. First B1 is needed to get B3 in the right place. Later it will treated lightly to get a strong position. If W tenuki playing W2 elsewhere B1 is needed to cut. So this is another use of the Big Bulge here. Of course W tenuki is in this situation not the best idea, but this shows the dynamic of this shape. I will call it: A bunch of virtual live lines. In the moment where B1 is played all they exist, but only one get reality later (condensation). Therefore fixing a position reduce the value. From this point of view a good shape is a configuration which has enough nice future prospects to a brought variety of possible upcoming situations. A good feeling means than to look somehow in the future knowing which live lines from different possible shapes over the goban will work later nicely together. This maybe is also called luck, I guess. QWerner

Tapir: To my limited understanding it is far from clear whether B1 will turn out as kikashi. Imagine the Black stone on the right (black+circle) needs to make eyes later, B1 by disabling the attachment at k might as well turn out to be aji keshi.


Kikashi / Examples last edited by tapir on December 25, 2011 - 23:31
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