Sub-page of BeginnerExercise187
Black's answer  

Hans: White has some more ko threats here, for example: a, black answers at b, and depending on the rest of the board c. This threatens to escape at d and black eventually has to play at e in the corner in order to live.

LukeNine45: Yup, that's what I had in mind. :) Dieter: Myself I'd rather talk about aji at d but generally I agree. Here's my reason:

Black's answer  

White has two ko-threats W1 and W3, but then her potential (aji) has diminished. Yes, she has increased her liberties but her group has also become heavier so in my opinion it is better to leave W1 and W3 unplayed. Anyway, this is a difficult matter, but my main point is to call it aji rather than the more specific ko-threats.

BeginnerExercise187/Solution last edited by P7A77 on February 7, 2005 - 05:06
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