: ( 313)
Black mistakenly captures in the centre.

:
White plays hane on the upper edge, creating a second ko-shape for her group. It is not necessary to play the exchange of , , now. White can save this threat for later.

:
Sooner or later Black must play a move like this, eliminating his weaknesses in this area. Otherwise he will encounter massive difficulties in further approaching White's group.

: (A 325)
Black could provide stronger resistance by capturing the ko on the upper edge, with a move at , instead. But White will still win.

: (A 328)
White could also continue with occupying outside liberties of Black's top right group.

:
The result is a double-ko, involving and . Black is one move behind here (due to his initial safety-first move with = ), so he has no time to connect his stone . White will give atari at , and win the game.