: ( 648mc)
White plays the peep in the centre as a ko threat.

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Black has to connect.

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White captures the ko.

Please note that this was the very last moment to play the atari of . However, White simply would have lost a ko threat here, as she could have done without the peep.

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Black plays his very surprising connection at , threatening to continue with , creating two points of territory in the left centre.

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White has to give atari.

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White has to connect the ko.

Black plays 2/3 reductions.

Later, White will play her kikashi , in the lower left corner, so that Black must capture with before the end of the game.

Capture Variation:

Compared to the superordinate variation ...

• Black did not destroy one point of White's territory at the upper edge.
• White did not capture Black's stone in the lower right, so losing two points.

In total, White lost one point.

White + 2 => White + 1

Semeai Variation:

Compared to the superordinate variation ...

• White captured one Black stone less at the upper edge, so losing one point.
• Black captured an additional White stone in the left centre, so gaining two points.
• White captured an additional Black stone in the lower right, so gaining two points.

In total, White lost one point.

White + 2 => White + 1