Ko fight example from a pro game - 3
This is a game between Zhang Li and Huang Yizhong in 2005 (complete game record: http://www.go4go.net/go/games/sgfview/8929). 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.
Incidentally, the last local threat, at , is worth a discussion:
If resolved the ko,
connects.
cannot resist, as
makes miai of a and b. Probably
should be played at a immediately.