Atekomi

    Keywords: Tesuji, Shape, Go term

Chinese: 挤 (擠) jǐ
Japanese: 当て込み or アテコミ (atekomi)
Korean:

Atekomi is a play that wedges into a diagonal play (kosumi). It creates a cutting point for the opponent's diagonal. (But that is not necessarily what it threatens.)

[Diagram]

Atekomi

So B1 here is atekomi (something like "aim inside"). There are typically supporting stones nearby.

In English atekomi has also been called an angle wedge play. With a supporting stone at a Jared proposed the name Kosumi Cut, because the cutting stone is a kosumi and because it cuts opponent's kosumi.

There are some cases where atekomi is a hard-to-find tesuji. White can simply connect as an answer, so the tesuji usually has other aims in addition to separating the two stones, as in the examples below.

Example 1

[Diagram]

White to capture marked stones

[Diagram]

Tesuji

W1 is atekomi. Black can't protect at both a and b.

This particular example happens to be a Clamping Tesuji as well, however, this would still be atekomi even if the marked clamping stone wasn't there.

Example 2

[Diagram]

Connection

The atekomi, B1, connects underneath.


Example 3

[Diagram]

Black to play and kill

The atekomi, B5, sets up the eye killing play, B9.


Real game example

(This example comes from KGS - exam vs. pyczhm 7-2-05)

[Diagram]

Atekomi

Black has just played B1 and now white must try to escape. Perhaps white thought 'a' might work, but it does not.

[Diagram]

Atekomi

After B3, White is cut.

B3 at 'a' or 'b' would fail; the Kosumi Cut works where other cuts do not.

'a' or 'b' is a common mistake because we are used to StrikeAtTheWaistOfTheKeima


See also:


This is a copy of the living page "Atekomi" at Sensei's Library.
(OC) 2014 the Authors, published under the OpenContent License V1.0.
[Welcome to Sensei's Library!]
StartingPoints
ReferenceSection
About