Variations of Our Solution (Ib)
KataGo's 2021 Solution
VAR (.3) (.2)
: ( 58ap) | |
: : | |
: : : : ( A 58as) White must continue with the crosscut at , instead, either before or after she captured the nakade with . Only a two move difference makes a game-deciding difference here. : : | |
: However, this move is likely to increase the susceptibility to errors in the following course of the game unnecessarily (and can be a genuine mistake; 58by), and so can be considered to be a technical mistake in the timing of moves. White should keep this move in reserve, and play the endgame sequence after her hasami-tsuke in the lower left corner in succession - if ever. : However, this is another move that is likely to complicate the course of the game unnecessarily (and is a genuine mistake, if played too early; 58dr), and so should be left unplayed here, as White will be unable to take any advantage of it. : : | |
: Playing the atari at first would also be possible. : Alternatively, he might consider giving atari at in the corner. : : : | |
: (134 58at) This move was the candidate for a potential mistake in this subvariation, as I felt that Black's shape in the upper left corner would be strengthened by this move unnecessarily. As it turned out, the exchange for does not have any effect on the further course of the game. Therefore, White could also do without this move. : ; : | |
: : : : ( 147 58ay) : (A 58ba) He would lose one point overall, if he played the solid connection at , instead. | |
: : : | |
Black must not play any reduction | |
Capture Variation: Compared to the superordinate variation, ...
In total, White gained three points. Black + 2 => White + 1 | |
Semeai Variation: Compared to the superordinate variation, ...
In total, White lost three points. Black + 2 => Black + 5 | |