:
White occupies a point inside her eye on the left side "late", i.e. after her group is reduced to only two outside liberties (). For this purpose, we refrain from giving atari at , due to technical considerations.

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:
Previously (instead of starting the endgame on the left side "early", with a move at ), we had the exchange of - in our solution. Indeed, Black has no other choice but to connect the atari, but - in principle - this is a ko-shape.