![]() StartingPoints Referenced by
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notcher code
Keywords: Life & Death
On this page we devise a coding system for notchers, in order to set up a systematic approach to their life and death status. Suppose the notcher is black and the surrounding group white.
Marked points: possible weaknesses
We put this information into a code nklxx where n, k, l take numerical values and the x-es can be either W, N or S. DiscussionSeveral months after having devised this system, I see two problems, one of which unkx80 elegantly solved. 1. The S should not mean strong because it is often so that a neutral corner makes the notcher stronger than if it were occupied by the defender, because in effect this can lead to shortage of liberties. The suggestion is to make "S" mean "solid" (now that the harm of naming notchers this way is done). 2. Moreover, it sometimes matters whether all outside liberties are filled. The corners are hence not the only potential weakness. Therefor, the classification is not complete and maybe not relevant at all. For the moment, I intend to continue as we started but with special mention of liberties. This is a copy of the living page "notcher code" at Sensei's Library. ![]() |