Ko fight example from a pro game - 10
Keywords: Ko
Normally we capture the cutting stone but here White would save four stonesin sente and capture two in the process.
In the game, skillfully creates a ko up to
. Then
takes the ko first,
is the ko threat and
resolves the ko immediately.
Suppose responds, then
recaptures. Whichever Black's threat comes next (conveniently chosen as a big point
here), White enlarges the ko at
. Black can hardly fight this ko and will (eventually) cover at
. White can then connect with
at
in sente because below there's a liberty race going on.
Eventually White can return to Black's threat with while having greatly enhanced her strength in the upper right.