Score Estimator

[anpd]

Hi,

I was wondering if anyone new of any good open source score estimator for none final positions? If it can recognize some life and death that would be great. Preferably in c# but any language would do.

[Joaz Banbeck]

Check with Justin Kramer, who runs eidogo.com. He used to have one on his site.

EDIT: He still has an icon for it, but clicking on the icon generates a message to the user saying that the estimator is inactive because it was using too many clock cycles.
So he presumably still has the code.

[anpd]

Thanks the code is open source so took a look. Looks like it's using gnu go's score estimator, but could be wrong, will take closer look.

[Hane]

Score Estimator used by OGS :

https://github.com/online-go/score-estimator

[DrStraw]

Score Estimator used by OGS :

https://github.com/online-go/score-estimator

This only counts points which are absolutely surrounded and gives no credit for definite territory which is for which the boundaries are not complete.

[Uberdude]

Score Estimator used by OGS :

https://github.com/online-go/score-estimator

This only counts points which are absolutely surrounded and gives no credit for definite territory which is for which the boundaries are not complete.

Are you sure that code is for the in-game "score estimate" below the player names, which is extremely simple and useless as you describe (even worse than useless I think as it misleads beginners), and not the better score estimate function which can be accessed from the 'game menu icons' of a little speedometer. The latter is similar to the KGS one: not perfect but does estimate not-yet-completely-surrounded likely territory.

[DrStraw]

Yes, you are right. I had looked at it one time early in a game and it gave nothing of value so I had not bothered with it again. I just looked and it gives a little more, but still misses a lot of point until late in the game,

[ericf]

You could have gnugo "play out" the game and then use that score.

[anpd]

Thanks for suggestions, using OGS to find dead stones and then use a Bouzy 5/21 algorithm might give decent results. Yes gnu go gives good result but haven't found a good way to visualize it, only a score. Want to show where the territory is coming from.

[anpd]

Got some decent result. Used Gnu Go to find probable dead stones and run a Bouzy 5/21 algorithm to get an estimate. Looks like it's working OK.

[Garf]

As pointed out here: lifein19x19.com/forum/viewtopic.php?f=18&t=13692

Leela has an "mc_score" command.

So you can type (in the commandline engine):
loadsgf myffile.sgf
mc_score

And Leela will reply:
= B+5.5

i.e. black up 5.5 points.