: ( 222ds)
Black gives atari at White's single stone.

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White gives counter-atari.

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Black is forced to capture.

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Again, White gives atari in the corner.

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But now, Black is able to give counter-atari at the upper edge.

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White captures, as a matter of course.

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Eventually, Black captures White's two stones at the top.

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KataGo (2021i) likes to give atari in the nakade now, for what reason ever.

White can do without, as the exchange for is not mandatory at this stage of the game. White's large group has more than sufficient liberties left.

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White's connection continues the fight in the upper left corner.

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Black has to connect his troops at the outside.

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White gives the "usual" atari at the left edge, ...


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... before destroying Black's potential second eye at the upper edge.

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It seems best for Black to give atari.

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White secures an eye for her corner group.

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This hane at the upper edge will help Black in the corner.

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Black connects inside his potential territory, pre-empting a White atari at the same point.

Black must not connect at , instead, but has to keep the double-ko of and alive.
If he connected, White would give atari at , forcing Black to capture with . Black's group would have lost a decisive outside liberty.

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White defends her territory at the top, while occupying a liberty of Black's group.

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White's last move was gote, so Black is able to play the large endgame point at the bottom.

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Black closes the upper left corner.

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White plays the wedge in the left centre.

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KataGo's bad-shape move in the left centre benefits White by one point.

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It is best for Black to answer with KataGo' solid connection.

Black must not play any reduction.

After White's decision point, White will connect at , while Black will connect the other ko with .
Thereafter, White will occupy a shared liberty with . White's eye is larger than Black's, so Black has to sacrifice some additional stones with , , , .

Capture Variation:

Compared to the superordinate variation ...

• White's cumulated gain in the upper left corner is three points.
• White's cumulated gain at the top is three points.
• Black got an additional three points of territory in the lower left corner.

In total, White gained three points.

White + 11 => White + 14