Ko fight example from a pro game - 3
This is a game between Zhang Li, 3p, and
Huang Yizhong, 6p, in 2005
(2005-10-08, 7th Chinese League A, round 13, W+R 7.5 komi,
complete game record).
White invites a ko with
, which is necessary to fight the capturing race in the corner.
starts the ko.
is the first threat and it is a local ko threat.
is also a local threat. Next
-
prepares
which is necessary to continue the ko.
is another local threat.
Black throws in at , a tesuji that reminds of the two-stone corner squeeze.
then takes the ko, which has become a two-stage ko. Finally,
resolves the ko.
The last local threat, at , is worth a closer look . . .
If resolved the ko,
connects.
cannot resist, as
makes miai of a and b. Probably
should be played at a immediately.