Variations of Our Solution (IIIb)
Tricking KataGo (Triple-Ko)
VAR (C) (A) (.2) (.2) (.2)
(Referenced by 222br) : ( 222fb) | |
: : | |
: : : : : : He cannot afford to give counter-atari with , because he would be unable to win the ko fight after White captured with . | |
: After having finished all the corrections in some subvariations below, we noticed that White could optimise her starting position by capturing the nakade with beforehand. Black would be forced to fill it with some stones that would become additional prisoners in one of the subvariations below. : Jumping to , instead, would end even worse for him.
This later part of the variation tree - with the exchange of in the upper right for in the lower left - was analysed and commented first by us. You will find an up-to-date analysis of this position at an earlier subvariation ( 222bv). : (A 222fd ; B 222fi ; C 222fj) Further attacking Black's corner with pushing at from the outside - without the preparatory hane in the corner - would be overdoing things. This mistake would lose White two points overall, compared to the alternative subvariations here. Continuing with the Main Semeai, e.g. with a move at instead, would give Black the opportunity to cut the height of White's win in half. Peeping at the upper edge, with , gives Black the opportunity to start a semeai with White's centre group, but which he will lose. | |
: ( 120 222fk) Continuing with the Main Semeai, however, would be better for him, cutting the height of White's win in half. : (123 222fm) As we know now, blocking at would be playable, provided White chooses the correct continuation (which we did not know at the time when we initially commented this subvariation). Alternatively, White could take Black's large group at the right a decisive liberty by connecting at , punishing Black for having just lost one tempo in the Main Semeai. : : : : Please note that the hanezeki will remain untouched, as both large groups live independently. According to our estimations, ... White will win the game by about 15 points. | |