Variations of Our Solution (Ib)
KataGo's 2021 Solution
VAR (.1)
: ( 58ai) We inserted this alternative move manually. The sequence below shows KataGo's continuation (in a selfplay game). | |
: : : : : : ( A 58ak) If Black played the move at , instead, he would not lose his entire corner as below, while still being unable to avoid a decisive defeat. : It would be too early to cut with at the outside. : ( 108 58am) If Black extended to , instead, he would not lose his entire corner as below, while still being unable to avoid a decisive defeat. : Again, cutting with at the outside would be mistaken. : | |
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: She might have played this sequence first, and captured the hanezeki's tail later. : : : : This ko is an approach-move ko, in principle favouring Black; and a two-stage ko as well, favouring White. | |
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: : The ko has become a direct one now, as White would win the fight by connecting this second ko. : : White would be able to win the game by terminating the ko fight just now. However, she has sufficient own ko threats available, as we will see, and therefore does not need sacrificing her stones. : : |
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Ko: |
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: : White will win the game by about 40 points. | |