Variations of Our Solution (IIIb)
Tricking KataGo (Triple-Ko)
VAR
(C)
(A)
(.1)
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It is much too late to play the guzumi, instead.
White might consider continuing with the "classical" hane at The same is true for White's wedge at
As usual, there is no need to choose the solid connection of
Defending his lower left corner, with a move at
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The other one starts the endgame at the left side of the board with However, I found out that none of these two moves is correct, as White's unimpressive, and silent, move of
It is very likely that this experience was due to my weak hardware, as KataGo (2020) also favoured the correct move at |
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She might wait with this move (and the following sequence) until after her decision point.
Otherwise, the corner might become a seki.
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Black must not play any reduction. |
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Capture Variation: Compared to the super²ordinate variation ...
In total, White gained three points. White + 2 => White + 5 |
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Semeai Variation: Compared to the super²ordinate variation ...
In total, White lost three points. Black + 3 => Black + 6 |

222aa
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222ac
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. She will still be one point better than in Our Solution, but nevertheless fail to achieve the optimal score of the subvariation below.
, which KataGo (2020) favours over the "classical" hane. White's score in the Semeai Variation will benefit by five points, because she takes more profit (for the Capture Variation) outside the Main Semeai area than after the hane.
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, instead, is out of the question. Black would fall prey to the Punishment Semeai.
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114
at the top will achieve a final score that is one point better overall. For a reason that I do not understand, KataGo (2020) seemed to have overlooked this move, which erases White's weakness at the top, and also lurks into Black's corner.
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not before a very large number of playouts for this position.
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