[Welcome to Sensei's Library!]

StartingPoints
ReferenceSection
About


Aliases (info)
SelfAtari

Paths
Mistake

Referenced by
Atari
CuttingPoint
BasicsOnKos
ShortageOfLiberti...
TemporarySeki
ProtectingTheCutE...
LargeHandicapGame...
BeginnerExercise2...
LoseYourFirst50Ga...
BeginnerExercise9...
KanazawaSolution20
KanazawaAttempts95
KanazawaSolution23
SemedoriExample2
TwoByFourBox
TakingAFriendlyGa...
SecondaryLibertie...
AndreEngelsPagesT...
BeginnerExercise1...

 

Auto-atari
Path: Mistake   · Prev: BeginnersPlayAtari   · Next: AutomaticPlay
  Difficulty: Beginner   Keywords: Go term

To put your own stones in atari, also called self-atari.

[Diagram]
Auto-atari

This endgame hane is not such a good idea. The connection of W3 puts four W stones in atari.



Example 1

[Diagram]
Example

From the Crane's Nest Tesuji. The circled spot is the last liberty of the chain of five Black stones surrounding it. If Black wants to protect the stones from being captured ...


[Diagram]
Example

Black creates a lump of seven stones, which still have only one liberty left. Thus Black has put the stones into atari (auto-atari): next, White will capture them all at a.

Andrew Grant: I don't think this is a good example of auto-atari, since the five black stones were in atari to start with. To my way of thinking, auto-atari means starting with stones not in atari and putting them into atari by filling a liberty. The example in the first diagram is much better, as is the example below.



Example 2

[Diagram]
Example 2

Doug Ridgway: In the example above, the black stones were already in atari, so the mistake doesn't change much. Here's an example from one of my games where the consequences should have been more serious. Black played at the marked point. I was White, too bad I didn't spot the atari.

coyotebd?: A much better play for Black, naturally would be at a, making two eyes.

Andre Engels: Actually, black has already two eyes, whatever he does (except for playing the move black actually played...) White cannot play at a because it would be suicide, and no other move stops black from playing there and making two eyes.



Dieter: the following discussion should probably be on another page. Not sure.

unkx80: But I thought W2 is auto-atari?

[Diagram]
What is the worst response to Black 1?

Here's another one. White has lots of good responses to Black 1 (consider a, for instance, or perhaps tenuki). What is the worst choice?


[Diagram]
Oops.

This was where I played.

-- Doug Ridgway



I removed discussion resulting from the lack of an extra line on the top of the diagrams. It was very confusing. -- protognsis

Dieter: and where are you going to put it ?



Path: Mistake   · Prev: BeginnersPlayAtari   · Next: AutomaticPlay
This is a copy of the living page "Auto-atari" at Sensei's Library.
(OC) 2003 the Authors, published under the OpenContent License V1.0.