: ( 222fd)
Black ignores White's ko threat in the left centre and captures White's stones in the upper left corner.

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White immobilises Black's two stones above, bringing his left-hand group to independent life.

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Black cannot prevent the capture of his two stones.

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Black starts the semeai between his large group at the right and White's centre group with this throw-in in the centre.

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Black generates an eye for his group.

If he played at , instead, both groups that are caught in the semeai would remain eyeless, but the final result of this fight would be unaffected.

This is the position that attracted Joachim's particular interest.
As you can see below, Black is only one move behind in this semeai. This implies that he would have won it if he let the marked exchange unplayed, which cost his group a decisive liberty.

This discovery implies that Black should have ignored White's initial ko threat.

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White must secure an eye for her group, too.

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Black's move at the top is one possible continuation.

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White occupies the vital point at the top.

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Black prevents White's hane at the same point.

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White reduces the size of Black's eye.

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Black's group has only six liberties left, so he must connect the hanezeki's tail, capturing White's three stones.

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Black captures the ko at the top.

He is unable to play at , instead, as White will give atari with .

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White captures the ko at the upper edge. This double-ko favours White, as usual with this kind of semeai.
Neither side will occupy the point of , so the fight in the centre resulted in a local seki.

White, however, will continue with in the lower right corner, capturing Black's stones there, which also resolves the local seki above.

White will win the game by a very large margin.