See Miai Values List for conventions and explanation.
There are other types of neutral (dame) points including: protective moves (teire) against the cut when outside liberties are filled; capturing stones in seki, etc.
Either player can play first, with the same result.
may be a ko threat. At the dame stage, an immediate
is a protective play.
Connect ko
Initial count: -0.33
White has 1/3 point equity in the stone. We may think of it as 1/3 captured.
Take ko
HolIgor: This move together with the one above should give a point, shouldn't it?
Bill: Yes, but Black started with 1/3 point net equity , so each move gains 1/3 point, on average. :-)
See half-point ko.
fills.
Initial count: 0.67
Initial count: 8.67
Initial count: 5.67
, preventing the ko, would also be worth 0.33.
Initial count: -0.5
Initial count: 1.5
at 1.
Initial count: -3.5
Initial count: 2.5
Initial count: -0.5
Initial count: -2.5
After the corner is worth -2. White has captured 3 Black stones, but Black can claim the
stone.
(Note: If White is komaster she can make ko to protect , but Black gets 3 moves elsewhere.)
After White gets 2 Black stones plus 1 point of territory.
Make damezumari
Now there is a 0.33 point play at a.
Now there is a 0.5 point play at a.
The swing is 1 point at plus 0.5 - 0.33 = 0.17 in the corner in gote. That yields a miai value of 0.58.
If B were komonster, it would be 0.75.
Ambiguous.
Take away potential point (corridor)
Take stone in sente, leaving 0.67 point play.
Save stone, leaving 0.5 point play.
Take away potential point (corridor)
$$ . . . . . . . .
Take away potential point (corridor)
Take away potential point (corridor)
For higher values see /1.00 to 1.99, /2.00 and more.
[3] Bill, now I'm confused - I think. Black's sente - I've switched the colours for ,
. OK, so using miai values means sequences don't need to be flagged as such (sente, or gote). Ah, I get it: White connecting on either side leaves
where Black has in effect 0.33.
Leaving this comment for others' benefit. Charles
Bill: This is an ambiguous position. Its miai value is 1/3, but Black can take one stone and threaten to connect with sente. Then, OC, the position still has a miai value of 1/3, and Black's sente has gained nothing locally. (It may have been a ko threat.) In thermographic terms, it has a blue mast up to temperature 1 2/3.