: ( 222aa)
White plays the classical atari at the top.

: (96 222ac)
Black blocks his upper left corner.

It is much too late to play the guzumi, instead.
Black's upper left corner is quite weak now, as it is open at the upper edge. Therefore, Black would lose three points overall if he really played tenuki.

: (99 222ae ; A 222ag)
White occupies the guzumi point.

White might consider continuing with the "classical" hane at . She will still be one point better than in Our Solution, but nevertheless fail to achieve the optimal score of the subvariation below.

The same is true for White's wedge at , which KataGo (2020) favours over the "classical" hane. White's score in the Semeai Variation will benefit by five points, because she takes more profit (for the Capture Variation) outside the Main Semeai area than after the hane.

:
Black plays the kikashi in the bamboo joint of Michael Redmond.

:
White answers with the atari, which is best for her, despite it loses a tempo in the Main Semeai.

As usual, there is no need to choose the solid connection of here, in order to keep Black par with the Punishment Semeai Liberty Level. White would lose points unnecessarily.

:
Black's descent to the upper edge defends his corner.

:
White captures Black's hasami-tsuke stone, so continuing with the Main Semeai.

:
Black defends his territory in the left centre, also occupying a liberty of White's group.

Defending his lower left corner, with a move at , instead, is out of the question. Black would fall prey to the Punishment Semeai.
The same applies for his connection at .

; :
We added this exchange in order to simplify the presentation.

: (A 222ah ;  114 222ai)
White's wedge at the top is one of KataGo's (2020) top favourite moves.

The other one starts the endgame at the left side of the board with in the lower left corner.

However, I found out that none of these two moves is correct, as White's unimpressive, and silent, move of at the top will achieve a final score that is one point better overall. For a reason that I do not understand, KataGo (2020) seemed to have overlooked this move, which erases White's weakness at the top, and also lurks into Black's corner.

: ( B 222am)
Black's defense at the third line was the first move that I encountered when trying around with KataGo.

It is very likely that this experience was due to my weak hardware, as KataGo (2020) also favoured the correct move at not before a very large number of playouts for this position.

:
White continues with the endgame in the lower left corner.

:
It is best for Black to connect.

:
White's throw-in destroys a potential Black eye.

:
It is White now, who occupies the vital point in Black's corner.

:
It is best for Black to block from the right, also securing an eye.

:
Black has captured White's invasion troops.
As long as his group has sufficient outside liberties, his corner is not in danger of becoming a seki.

:
White occupies a liberty of Black's group in the upper left corner.

She might wait with this move (and the following sequence) until after her decision point.

:
Sooner or later, Black has to give atari at White's stones in his corner.

Otherwise, the corner might become a seki.

; :
In order to simplify the presentation, we display this exchange just now.

Black must not play any reduction.

Capture Variation:

Compared to the super²ordinate variation ...

• Black's cumulated gain in the upper left corner is two points.
• White got an additional three points of territory at the upper edge.
• White's cumulated gain in the lower left is two points.
• White did not capture Black's stone in the lower left, so losing two points.
• White captured an additional Black stone in the upper right corner, so gaining two points.

In total, White gained three points.

White + 2 => White + 5

Semeai Variation:

Compared to the super²ordinate variation ...

• Black's cumulated gain in the upper left corner is two points.
• White got an additional three points of territory at the upper edge.
• White's cumulated gain in the lower left is two points.
• White did not capture Black's stone in the lower left, so losing two points.
• Black captured an additional White stone in the lower left, so gaining two points.
• White captured one Black stone less in the upper right corner, so losing two points.

In total, White lost three points.

Black + 3 => Black + 6