: ( 140)
Black chooses a ko-threat in the hanezeki. This is also shown in the theory chapter as FLAG 4b1 ( 1021), with the "late" ko there, but which does not make a difference.
Ko:
:
However, White's answer takes Black's group a liberty.
Ko: ; ; ; ;
:
This enables White to play another protective move on the left side, now also erasing Black's remaining ko-threats there.
:
Black has run out of valid ko-threats, so White simply connects the ko.
:
As before, White wins the semeai by one move. Black's choice to exchange / in the hanezeki did not affect the outcome, but shortened the sequence only. This means that this exchange is not correct from the technically point of view.
(.1) 
(.1)
161
140
:
; 
; 
; 
; 
:
:
:
/ 
in the hanezeki did not affect the outcome, but shortened the sequence only. This means that this exchange is not correct from the technically point of view.
