: ( 648ao)
Black gives atari at White's two stones in the lower left.

:
White has to play her kikashi in the hanezeki.

:
White bumps in the left centre.

After this move, Black's group in the upper right has nine Main Semeai Liberties (even assuming Dany's Sacrifice).
This implies that Black will - in principle - ignore any White move in the left centre, and go for the win in the Semeai Variation, enabled by three surplus Main Semeai Liberties.
Black has the initiative at the left side, because White is restricted to passively answer a Black moves there, if ever.

Black is comfortably ahead in the Capture Variation, so gaining two points back by refuting Dany's sacrifice will not really benefit White.

As we have already seen in the superordinate variation, connecting her single stone at the upper edge with is too slow, losing one point overall.

:
Black captures in the lower left.

:
White has to continue with the Main Semeai.

: (130 648bo)
Black connects in the left centre.

Alternatively, he could also capture White's single stone at the upper edge.

:
White connects.

:
Black continues with the Main Semeai.

Black plays 0/1 reduction.

Capture Variation:

Compared to the superordinate variation ...

• Black got an additional point of territory in the left centre.
• Black captures two White stones in the lower left, so gaining four points.
• White captured Black's stone in the lower right, so gaining two points.
• Black got an additional point of territory in the hanezeki.

In total, White lost four points.

White + 1 => Black + 3

Semeai Variation:

Compared to the superordinate variation ...

• Black got an additional point of territory in the left centre.
• Black captured two White stones less at the left, so losing four points.
• White captured one Black stone less in the lower right, so losing two points.
• White got an additional point of territory in the hanezeki.

In total, White gained two points.

White + 1 => White + 3