This continues "Overview & Summary (II)" ( 960).

We have shown so far that White will win the main line of Joachim's Ko-Semeai. Just as well that neither Black, nor White, must allow their opponent to gain an additional liberty (or a move, which is equivalent). Otherwise, the result will become very one-sided. Finally, we have explained that there is an "ideal" moment for White to start the ko "late".

However, many things could happen during the solution's sequence, which might affect the outcome of the ko-fight. The most important of these will be described below.

FLAG 1a: ( 990)
It is Black's choice to play the first throw-in only, with a move at , but not the second one, with a move at .

FLAG 1a1: ( 991)
However, simply occupying the hanezeki-directed liberty of Black's group, with a move at , is a grave mistake; White would need four atari-ko-threats on her own!

FLAG 1a2: ( 991)
With correct occupation of the hanezeki-directed liberties by White, there is no effect; Black will still need one external ko-threat.

FLAG 1b: ( 994)

It is Black's choice to do without any throw-in, but to play the forcing move of only.

FLAG 1b1: ( 995)
Connecting the lower cutting point, at , is White's choice, but she must not do so. White would need three atari-ko-threats of her own, but which she is unlikely to get.

FLAG 1b1b: ( 997)
If White had a ko-threat available that compensated for her loss in the hanezeki, she could capture the hanezeki's tail successfully, instead of starting the ko-fight.

FLAG 1b2: ( 999)
White must choose the connection of the upper cutting point, at .

FLAG 1b2a:
Again, simply occupying Black's hanezeki-directed liberty with a move at is a mistake! White would need five atari-ko-threats on her own, but which she is unlikely to get.

FLAG 1b2b: ( 1001)
With correct occupation of the hanezeki-directed liberties by White, there is no effect; Black will still need one external ko-threat.

FLAG 1b2c: ( 1002)
Black has no chance of pre-empting White's correct play in the hanezeki, by forcing with a move at . White would win unconditionally.