: ( 648id)
White plays Dany's atekomi.

Please note that this move is played outside the Main Semeai, but does not lose a tempo therein, because becomes an approach-move liberty of White's group at the left.

Black is still par with the Punishment Semeai Liberty Level.

Black is unable to continue with , or , in the left centre, because any of these moves would push him below the Punishment Semeai Liberty Level.
On the other hand, White threatens the severe cut at , which would win her the game.

Black is strictly bound to continue with the Main Semeai. Therefore, giving atari at is his only choice, because this move is the only one that also defends against White's cut at (which White will not play now; please refer to this subvariation 648of for details).

White will connect at , providing Black with two Main Semeai Liberties. Now, Black is able to defend against White's cut at .

We ask for your kind understanding that we felt unable to adjust the move numbers (i.e. to increase these by two) in the already created diagrams, which follow in this part of the variation tree.

:
Black intends to start Dany's Ko.

Black's atari is played outside the Main Semeai, and so loses a tempo therein.

:
White creates a ko shape.

Again, her move is played outside the Main Semeai, but creates another approach-move liberty for her left hand group at C. White does not lose a tempo.

:
Black captures the ko in the centre.

We have reached a change in the order of moves with

VAR (.1) ( 648nz), where you will find detailed explanations on the continuation.

White will win both Main Variations by two points.