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BQM144
Path: BigQuestionMark · Prev: BQM143 · Next: BQM145
Keywords: Opening, Ko, Question
Dieter: the following analysis can be found at 3-4 point high approach outside contact, tsukehiki hanging connection
White has the possibility of starting a ko by playing at a, however she should not embark on this ko lightly. If White loses the ko, her position will crumble. If Black feels a need to remove the threat of the ko, he exchanges Black b for White c. Now the question:
If the ko is so troublesome for Black, then White should be in a position to increase its value by playing I assume that now Black can force White into a heavy position, as follows:
Black has now played two moves more than White. Is White's position unbearably heavy ?
White can play this way too and get a good result, IMHO. So, the question remains why White would play lightly as suggested with c in the first diagram. unkx80: I am not 100% sure, but allow me to make a suggestion using the following two diagrams.[2] Remember in either case, Black takes the ko first.
Dieter; That sure could be a reason. So if I understand correctly, White's move doesn't increase her gain from the ko as much as it increases Black's. unkx80: Yes. [1] Charles Looking at the way the pros play it turns out to be quite interesting.
When dnerra: This has little to do with the ko, of course. Permitting the peep at b is a shape disaster if White doesn't have an extension yet. The group would become extremely heavy. [2] Dave: Keep in mind that the ko is not this straight forward.
If White tries to start the ko with
It seems as though White can squeeze Black from here with ideas like
So it seems like Black might as well start the ko at this point. However, now Black has a lot of internal ko threats, starting with a. This seems like a very difficult ko for White to fight.
Maybe the correct reasoning is more like this:
Path: BigQuestionMark · Prev: BQM143 · Next: BQM145 This is a copy of the living page "BQM144" at Sensei's Library. ![]() |