: ( 233)
White occupies an "ordinary" liberty of Black's group.
Ko:
:
White starts the ko a bit too "late", i.e. after Black's connection of the hanezeki's tail, and after her centre group is reduced to only four liberties. This is also shown in the theory chapter as FLAG 0e ( 965).
Ko:
:
The ko-threats of , and , compensate for each other. Thus, White could do without, and play at immediately, achieving a similar result.
:
However, White needs a "real" (external) ko-threat now, because there are no Black liberties left, which she could occupy effectively.
:
White obtains a temporary seki, so winning the game. Please note that White's fate unnecessarily depends on the availability of the marked forcing exchange. In the main line of this chapter, she has succeeded without.