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Down
Keywords: Theory
In Combinatorial Game Theory DOWN is the name of an infinitesimal, also written v. DOWN is defined as v = { * | 0 } Left (Black) can play to * (STAR), while Right (White) can play to 0. DOWN is negative, favoring Right, who gets the last play, no matter who goes first. The opposite of DOWN is UP, also written ^. Some plays with a miai value of 1 chill to DOWN. (See Chilled Go). Here is an example.
This position chills to 1v (1 plus DOWN). White can get tedomari locally, no matter who plays first. For "Down" as a direction on the board see UpAndDown This is a copy of the living page "Down" at Sensei's Library. ![]() |