: ( 1432)
White completes the Guzumi Exchange immediately.

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Black continues with the Crosscut Sequence in the left centre.

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White starts the Nakade Sequence at the left edge of the board.

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KataGo's Atari.

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Black strengthens his formation in the left centre immediately.

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White's atari is forced.

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Finally, White captures Black's single stone in the lower left.

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Black's connection is forced.

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Yamada Shinji's Tsuke.

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KataGo's Immediate Crosscut.

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KataGo likes to capture the nakade early.

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White continues with the sequence in the upper left.

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An early kikashi that is typical for KataGo.

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White's hasami-tsuke starts the reduction of Black's lower left corner.

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KataGo's Bad-Shape Move in the left centre.

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Black answers with an atari at White's two stones in the lower left.

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It is best for White to connect.

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KataGo's Solid Connection in the left centre.

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White's previous connection cost her two tempi in the Main Semeai, so White must connect her single stone in the right centre.

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Black captures White's single stone at the upper edge in return.

; :
Some kikashi again.

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It is best for White to give atari at the upper edge immediately.

KataGo does not mind the result of the alternative Main Variation (the Semeai Variation here), and so often lets Black take profit outside the Main Semeai area.

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Black is able to play this push into White's potential territory at the top.

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Black connects his stone in atari.

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The Main Semeai continues.

Black plays 1/1 reduction.

Capture Variation:

Compared to Our Solution (2021), ...

• White got an additional point of territory at the upper edge.
• Black destroyed one point of White's territory at the top.

In total, gains and losses compensate for each other.

White + 2 => White + 2

Semeai Variation:

Compared to Our Solution (2021), ...

• White got an additional point of territory at the upper edge.
• Black destroyed one point of White's territory at the top.

In total, gains and losses compensate for each other.

Black + 4 => Black + 4