Gun Eight
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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.
then
makes the position seki. Black can tenuki and then
on its own also makes a seki. After
is dame under area scoring it is worth one point to the player who plays it. under territory scoring it is no point to either player.
Seki is the usual result, but there is a throw-in ko.
If Black is ko master than he can throw in a stone at and make a two-stage ko.
Because Black needs two big ko threats more than White, this ko favors White, so Black will usually make seki.
![[Diagram]](../../diagrams/2/2602116e0968b917d2e7347a0a87740b.png)
Continuation 3: Ko for White ( tenuki)
If Black plays elsewhere tenuki after in the first diagram, and White is ko master White can also make a two-stage ko.
2. Outside liberties
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).
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