: ( 222ab)
White plays the wedge into Black's upper left corner.

:
Black gives atari from the outside.

:
White gives counter-atari, also connecting her stones at the upper edge.

:
Black takes the opportunity to play the guzumi at right.

:
White attacks Black's upper left corner from the right, ...

:
... and the left, ...

:
... before capturing Black's single stone at the top.

:
Black has to play a protective move. He has to be careful here, due to the hidden weaknesses of his corner.

:
Eventually, White responds to Black's earlier played guzumi.

:
Black takes the opportunity to protect his territory in the lower left corner.

:
White continues her attack at Black's upper left corner, in order to reduce Black's territory there.

:
White's jump is tesuji.

:
Black protects his formation at the upper edge.

:
White tries to reduce Black's corner to only one big eye.

:
White further reduces Black's corner at the left edge in sente.

:
White connects her forces in the corner, so Black will have to take these stones really off the board.

:
Black captures White's single stone at the top, erasing a potential shortage of liberties.

:
White continues with the Main Semeai.

:
It is best now for White to connect her stones.

:
White captures at the top, also occupying one outside liberty of Black's corner.

:
Black has to defend passively.

Black plays 3/3 reductions.

After her decision point, White will capture at in sente, and connect at thereafter.
Black has to take White's stones in the upper left off the board, with to .

Capture Variation:

Compared to the superordinate variation ...

• White's cumulated gain in the upper left corner is seven points.
• White's cumulated gain at the top is four points.
• Black destroyed two points of White's territory at the upper edge.
• Black destroyed six points of White's territory in the upper right corner.
• Black gained an additional three points of territory in the lower left corner.
• White did not capture three Black stones at the right, so losing six points.
• Black did not capture White's two stones in the lower left, so losing four points.

In total, White lost two points.

White + 5 => White + 3

Semeai Variation:

Compared to the superordinate variation ...

• White's cumulated gain in the upper left corner is seven points.
• White's cumulated gain at the top is four points.
• Black destroyed two points of White's territory at the upper edge.
• Black destroyed four points of White's territory in the upper right corner.
• Black gained an additional three points of territory in the lower left corner.
• White captured an additional five Black stones at the right, so gaining nine points.
• Black captured an additional three White stones at the left, so gaining six points.

In total, White gained five points.

Black + 6 => Black + 1