Gun Eight
Path: LifeAndDeath · Prev: GunSix · Next: SquareNineInTheCorner
Table of contents | Table of diagrams Gun Eight Main line Continuation 1: Seki Continuation 2: Ko Variation at 2: seki Gun Eight with outside liberties Gun Eight with outside liberties |
1. No outside liberties
When there are no outside liberties, this eight-point large eye shape can be turned into seki or ko. In this position a is the vital point.
After ,
threatens to kill the white stone, forcing
.
/
makes seki.
/
does the same. (Though
indicates a desire to avoid ko. In that case Black's reply at
is not urgent.)
Seki is the usual result, but there is a throw-in ko.
White can throw a stone into the corner to make a two-stage ko.
Black can throw in at to make the same ko. However, this ko normally favors White, so Black will usually make seki.
This is a more straightforward way of reaching seki. Here and
are miai :
/
also reaches seki.
2. Outside liberties
As soon as there is an outside liberty, this shape is alive with 7 points.
Thanks to the outside liberty, Black can atari at . Without that extra liberty,
puts himself into atari.
3. Endgame conclusions
When the last outside liberty is taken, the play on the 2-2 is normally a 3 1/2 point gote (Miai Counting).
Authors:
- BillSpight
- Some minor edits by Dieter, copying stuff from /Discussion.
Path: LifeAndDeath · Prev: GunSix · Next: SquareNineInTheCorner