Counting points at the end of the game

[PeterPeter]

Reviewing one of my igowin games on the Panda sgf viewer, I was a bit surprised that Panda only gave Black one point in the scoring at the end of this game, with 18 points for White and 24 dame. Igowin recorded this as a win for Black. Who is right, Panda or igowin? Does Black need to do a little more to secure all his points on the right?

[p2501]

Black shouldn't need another move as far as I can tell.

[HermanHiddema]

Most SGF Editors can only tell you the score if you tell them which stones are alive and which are dead. If you do not, they consider all stones on the board alive. In this case, you will need to mark the white stones inside black's territory as dead for Panda to give you a correct score. Igowin tells the correct score because it uses its go playing engine to evaluate which stones are alive or dead.

[eldritch]

I think that's because of the white stones inside your territory. If you do not mark them as dead somehow, no territory is counted except for the one eye.

The same happens in qgo, where you have to mark the dead stones by clicking on them (as KGS also instructs after both players have passed). I don't use Panda so I can't offer instructions.

Hope this helps.

[PeterPeter]

That all makes good sense thanks.

So when 2 humans play each other, they each remove their opponents' dead stones after they have both passed? And removals can be questioned, and played out if they cannot agree?

[PeterPeter]

I think that's because of the white stones inside your territory. If you do not mark them as dead somehow, no territory is counted except for the one eye.

The same happens in qgo, where you have to mark the dead stones by clicking on them (as KGS also instructs after both players have passed). I don't use Panda so I can't offer instructions.

Hope this helps.

I have not seen instructions for this anywhere, but worked it out by trial and error. If you left-click on each White group on the scoring screen, it adjusts the score after each click. Easy when you know how.

[skydyr]

That all makes good sense thanks.

So when 2 humans play each other, they each remove their opponents' dead stones after they have both passed? And removals can be questioned, and played out if they cannot agree?

Yes. Usually it's pretty clear, but if disputes arise, most rulesets have a dispute resolution mechanism. For casual games, playing it out is the way to go, but I really haven't seen this need to happen since I was a beginner.