Deep Zen vs. Three Japanese Pros in 9X9

[ez4u]

The next computer vs. pro event in Japan will take place 2012-11-25. Three pros: So Yokoku 8p, Ohashi Hirofumi 5p, and Ichiriki Ryo 2p will each play two even 9X9 games against Zen. Chinese rules, and komi will be seven points (I assume this means 3.5 points as we are used to expressing with Chinese rules). There will be twenty minutes main time followed by 30 seconds byo yomi.

[Rémi]

The next computer vs. pro event in Japan will take place 2012-11-25. Three pros: So Yokoku 8p, Ohashi Hirofumi 5p, and Ichiriki Ryo 2p will each play two even 9X9 games against Zen. Chinese rules, and komi will be seven points (I assume this means 3.5 points as we are used to expressing with Chinese rules). There will be twenty minutes main time followed by 30 seconds byo yomi.

The komi is very probably 7. Matches between programs indicate that 7.5 gives more winning chances to White, and 6.5 gives more winning chances to Black. So 7 has become the preferred komi in computer-go tournaments.

Rémi

[luigi]

How did those games turn out? I checked the link, but I don't speak Japanese.

[Cassandra]

According to http://entcog.c.ooco.jp/entcog/event/event20121125.html Zen lost all the six games.

[Splatted]

Looks like Zen lost them all. You can see the actual games at

http://entcog.c.ooco.jp/entcog/event/event20121125.html

Edit: In case it's useful to know White = 白 and black =　黒

[luigi]

Thank you, guys.

Surprising results for 9x9. I had expected Zen to win at least a couple of games.

[luigi]

Which games were played by which players in the link you gave me?

[SoDesuNe]

If I remember correctly, Zen tends to lose more often on 9*9 compared to 19*19. I'm curious as to how this comes about. Seems as the machine isn't as "optimal" in reading as it is in chess? Or maybe some other things factor in?

[Splatted]

1+4. Ichiriki Ryo 2p
2+5.Ohashi Hirofumi 5p
3+6.So Yokoku 8p

[Splatted]

If I remember correctly, Zen tends to lose more often on 9*9 compared to 19*19. I'm curious as to how this comes about. Seems as the machine isn't as "optimal" in reading as it is in chess? Or maybe some other things factor in?

That's really wierd. Does anyone know why?

[jts]

Why are people surprised? Isn't zen rated 4 or 5d on kgs?

[gowan]

What sort of machine was Zen running on? It makes a difference in how strongly these programs play.

[p2501]

Why are people surprised? Isn't zen rated 4 or 5d on kgs?

Yeah but on 19x19 I guess. I think Computer-Engines are stronger on 9x9.

[schawipp]

1+4. Ichiriki Ryo 2p
2+5.Ohashi Hirofumi 5p
3+6.So Yokoku 8p

Thanks for the information. In the first game, I do not really understand why white (Zen?) resigned. If after Black-33 white plays e. g. on J3 the LR corner should be simply dead, and 34. G7 - G8 doesn't seem to work for B. In result, W looks rather big. Obviously I am missing something crucial... ? Thank you for any explanations.

[ez4u]

What sort of machine was Zen running on? It makes a difference in how strongly these programs play.

From the user information of 'Zen19D' on KGS, by its author, Hideki Katoh:
"Zen19D is a version of Zen19, runs on a mini-cluster of 4 PCs (a dual 6-core Xeon X5680/4.4 GHz, a 6-core i7 3930K/4.2 GHz, a 6-core Xeon W3680/4 GHz and a 4-core i7 920/3.4 GHz) connected via a GbE LAN. Although Zen19 is a prototype of a commercial product, Zen19D is being developed for academic research by team DeepZen, a joint project of ZenAuthor and me."

This is the version used for these competitions.