: ( 569)
Black gives atari here, but he has to protect the cut at thereafter in the one way or the other.

: (A 571)
If Black occupies a liberty of White's group above from below, so connecting his bamboo joint, White continues with the usual course of the solution, with capturing Black's nakade at .

:
Black must connect here.

Otherwise - if is played without this move - Black will lose three stones (and the game) after White's atari at , because he will be unable to connect at .

:
Now, the situation is the same as with our solution, as far as the Main Semeai is concerned; Black has not gained anything.

However, White's sente of in the upper left corner, worth three points, is still remaining.

So, the game will end in jigo again.