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Miai Counting
   

Miai Counting is a method to assess the value of a move.


[Diagram]
Diag.: Example diagram

Miai counting assigns a count to the position, and a value to a play in the position. In this example, the count is 2 (Black has 2 points more than White) and the miai value is 1 (Black's hane-connect? shifts the count to 3, while White's shifts it to 1).

An example of miai counting is given in ValueOfAMonkeyJump.

Comment: You can compare miai values directly. In general, you make the play with the largest miai value. Also, miai values add and subtract like ordinary numbers. Neither is true of deiri values. -- BillSpight

Question: Do miai values take sente/gote into account?

Answer: Yes. You do not have to make any alterations to compare the sizes of sente and gote plays using miai values. --BillSpight

Also, I just noticed:


[Diagram]
Diag.: Example solution

So I'm not entirely sure that the miai value is 1...


BillSpight: The example is not a full board, but part of a board. The stones framing the example are alive. That is a convention started in Mathematical Go, by Berlekamp and Wolfe.



This is a copy of the living page "Miai Counting" at Sensei's Library.
(C) the Authors, published under the OpenContent License V1.0.