Variations of Our Solution (Ib)
KataGo's 2021 Solution
VAR (.3) (.3)
: ( 58bb) | |
: (A 58bd) In another selfplay game, KataGo did without and defended in the left centre immediately. : | |
: (108 58bi) In another selfplay game, KataGo connected immediately at . : White must never ever connect her two stones, as long as the position in the upper left corner is still open. : : : : 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. | |
: : | |
: : Please note that this connection creates an an approach-move liberty for her left-hand group, and so does not lose any tempo in the Main Semeai. : | |
: ( 139 58bm) This move was my second candidate for a potential White mistake in this subvariation. However, a closer inspection of the alternative continuation showed a simple mistake therein that I had made accidentally. Nevertheless, White should refrain from playing this move, as it loses one tempo in the Main Semeai unnecessarily (correct continuation provided). : ( 132 58bo) Rather, it would have been the game-deciding mistake of this selfplay game had KataGo "seen" the correct continuation for White below. : Please note that his move is absolute sente, and Black does not have the time to continue in the upper right. : : : : : | |
: : ( A 58bq ; 146 58bt) This move was my first candidate for a potential mistake in this subvariation. However, a closer inspection of the alternative continuations showed "hidden" mistakes therein, that I had made accidentally. : (148 58bu) Alternatively, he might play KataGo's solid connection in the left centre. : ( 149 58bv) It seems that KataGo did not "see" the correct continuation in the subvariation after White's correct move at e.g. , occupying a liberty of Black's right-hand group. However, if White has a way to win the Capture Variation by two points (as in the subvariation here), Black must have made a mistake before (so far undiscovered by us). : | |
: : : : : : ( 159 58bw) As long as White has the capture at at her hands, he has to occupy shared liberties, instead. | |
: We will show the ensuing semeai in connection. : Alternatively, she might capture the hanezeki's tail from now on. : ( 167 58bx) White's centre group has five liberties () left, so she has to capture the hanezeki's tail, instead. : | |
; : ; : | |
|
: : : : |
: : : : | |
: : : : : : Black will win the game by a large margin. | |