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Black is unable to resist by giving atari at White's pivotal tsuke stone, intending to capture White's intruders into his upper left corner.

We inserted this move manually.

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White gives counter-atari.

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It is best for Black to capture White's tsuke stone immediately.

He will neither succeed with connecting at before.

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White secures the connection of her stones in Black's corner.

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Black is unable to fight a ko, and so has to connect.

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Now, White connects in the corner.

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It is best for Black to give atari.

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White's connects her single stone.

As long as White's five stones are on the board, has become an additional approach-move liberty for White's large group on the left.
Without defending against White's cut at this point, Black is unable to further approach White's group in the Main Semeai from above. If he e.g. played at , White would throw-in at (Black will answer with ), and give atari at thereafter, which Black cannot connect.

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Black's throw-in aims at reducing White's eye space at the top, but he will not be able to derive any benefit from it in terms of a semeai.

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Black has to play a protective move in the corner - sooner or later.

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White pushes at the left edge, destroying two points of Black's territory without losing any tempo in the Main Semeai.

Please note that White's move - in conjunction with - created another approach-move liberty at .

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It is best for Black to play Jérôme's Solid Connection here.

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Black's descent to the upper edge is quite large, as it prevents a White hane at the same point.

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We will simplify the ensuing sequence here.

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Black plays 1/1 reduction.

After her decision point, White will block at .

Capture Variation:

Compared to the superordinate variation, ...

• Black's cumulated loss in the upper left corner is eight points.
• Black's cumulated gain at the top is three points.
• Black destroyed one point of White's territory in the upper right corner.
• Black got an additional point of territory in the left centre.
• White did not capture Black's single stone in the lower left corner, so losing two points.

In total, Black lost one point.

White + 2 => White + 3

2038