: ( 222fc)
White blocks at the top, choosing a simple way of playing.

White is able to do so, as this exchange at the top does not affect the relationship of liberties in the Main Semeai.
Thereafter, Black is still par with the Punishment Semeai Liberty Level, and therefore as restricted in his options as he was before.

:
Black blocks in the upper left corner, also continuing with the Main Semeai.

Immediately capturing with , instead, is out of the question.
White would reply with , occupying a decisive liberty of Black's large group at the right. Black would lose the Main Semeai with White's group at the left (via the Punishment Semeai), as well as a semeai with White's centre group.

:
White continues with occupying Black's liberties at the right.

However, as we know now. White would gain a much better result with setting the scene for the approach-move ko in the upper left corner, by exchanging for .
Thereafter, White would erase Black's potential ko threats in the centre, and in the upper right, first while continuing with the Main Semeai. And due time, she would start, and win, that ko fight, so achieving an overwhelming victory.
Black remains helpless, with his hands tied, because the Punishment Semeai is lurking around the corner.

:
White turns the upper left corner into a seki, in sente.

:
Black has to invest another move in the corner, before he can occupy White's last liberty in the upper left.

:
The Main Semeai continues.

:
White plays the remaining endgame at the left side "early".

Black must not play any reduction.

Capture Variation:

Compared to the super²ordinate variation ...

• White destroyed 14 points of Black's territory in the upper left corner.
• Black's cumulated gain at the upper edge is 15 points.
• Black's cumulated gain in the left centre is one point.
• White destroyed three points of Black's territory in the lower left corner.

In total, White gained one point.

White + 4 => White + 5