: ( 364)
Black can also start in the centre.

:
White cannot prevent the ko by playing at , or at . As already shown earlier ( 283), Black gains a decisive liberty, so winning the semeai on the right side outright.

:
It results a change in the order of moves.

:
In contrast to Joachim's first idea for ( 225), Black has already got too many points on the left side, by his initial move at , so White cannot set her hopes on making her top group alife with a move at , thus letting Black live in the top right.