Question: Is Ray accounting for the number of handicap stones for score calculation? about ray HOT 3 OPEN

@kobanium Is handicap game always 0.5 point komi?

from ray.

Hi!

I got my answer: I crafted the enclosed SGF file (9 handicap stones, komi 11.5) and asked Ray to evaluate final_score. Result for Ray: B+132.5

In the same time, Leela, Leela Zero and GnuGo give B+112.5

If I count myself (Chinese rule):

• Black: area: 247
• White: (area 114) + (komi 11.5) + (handicap 9) = 134.5
• Result: B+112.5

Now, even without accounting for the handicap stone, it should be B+121.5 and not B+132.5 which seems to indicate that Ray does not accound neither for handicap (<- this might be ok depending on rule set) neither for komi.

pnprog-vs-pnprog.zip

from ray.

@zakki
Yes. Komi is always 0.5 points on a handicap game.

@pnprog
Ray always considers 0.5 points komi on a handicap game.

• Ray's output : B+132.5 (komi 0.5 <- wrong value)
• Correct result : B+121.5 (komi 11.5)

Difference of score : 132.5 - 121.5 = 11.0
Difference of komi value : 11.5 - 0.5 = 11.0

This is Ray's bug. I will fix it.

from ray.