Variations of Our Solution (Ib)
KataGo's 2021 Solution
VAR
(.3)
(.3)

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However, it can also be considered a kind of technical mistake, as it enhances Black's eye shape in the left centre unnecessarily (and is a genuine mistake, if played too early;
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Black would be two points better in the Semeai Variation, if he blocked the upper left corner with |
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Giving atari at White's two stones in the lower left, instead, would lose points in the alternative Main Variation.
However, this move can be considered a technical mistake, if played so early. White should simply do without.
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Reducing Black's potential territory in the left centre with a move at
Connecting her two stones in the lower left, instead, would be a grave mistake. |
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Black must not play any reduction.
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Capture Variation: Compared to the super²ordinate variation, ...
In total, White lost three points. White + 1 => Black + 2 |
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Semeai Variation: Compared to the super²ordinate variation, ...
In total, White gained nine points. Black + 7 => White + 2 |

58bc
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58dr
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, instead, in principle returning to the course of Our Solution (the wedge in the left centre does not have any effect).
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: (A
58be
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into an approach-move liberty of his right-hand group. This will happen if he has sufficient Main Semeai Liberties to spend for connecting at
and
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, instead, would be mistaken.
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: (147 
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