Shark is probably Rybka 3 Clone

Discussion of anything and everything relating to chess playing software and machines.

Moderator: Ras

User avatar
Eelco de Groot
Posts: 4669
Joined: Sun Mar 12, 2006 2:40 am
Full name:   Eelco de Groot

Re: Move 69 and move 70 of course

Post by Eelco de Groot »

F. Bluemers wrote: the guy with shark/cryptic had nicks ending with 99.I would not be suprised at all if it was the same shark from the hydra team.
The same team that also had a "ground zero" engine
Maybe they don't like Americans. That would explain why they want to beat Rybka and then give away their engine for free. Is this politically motivated? And who was it again that welcomed Bruce Moreland with "The only good American..."

But I don't understand, if the people on Playchess concluded years ago that this Shark is a Rybka clone, why is it still playing there? Normally every Rybka clone gets barred by Harvey Williamson and his boss, why not this one? And if this is not the genuine Shark all the more reason not to allow this name when there is good evidence it is just a Rybka clone.

Why does nobody protest against this nonsense. And if Playchess members did protest, apparently nothing was done with it. Don't Playchess care about public relations anymore?

Eelco
F. Bluemers
Posts: 880
Joined: Thu Mar 09, 2006 11:21 pm
Location: Nederland

Re: Move 69 and move 70 of course

Post by F. Bluemers »

Eelco de Groot wrote:
F. Bluemers wrote: the guy with shark/cryptic had nicks ending with 99.I would not be suprised at all if it was the same shark from the hydra team.
The same team that also had a "ground zero" engine
Maybe they don't like Americans. That would explain why they want to beat Rybka and then give away their engine for free. Is this politically motivated? And who was it again that welcomed Bruce Moreland with "The only good American..."

But I don't understand, if the people on Playchess concluded years ago that this Shark is a Rybka clone, why is it still playing there? Normally every Rybka clone gets barred by Harvey Williamson and his boss, why not this one? And if this is not the genuine Shark all the more reason not to allow this name when there is good evidence it is just a Rybka clone.

Why does nobody protest against this nonsense. And if Playchess members did protest, apparently nothing was done with it. Don't Playchess care about public relations anymore?

Eelco
I never said that the cb guys concluded it was a clone,just people on the server.
A couple of years ago the guy wanted to go commercial with his "engine" and some of his friends on the server would get it free.
well,easy,most of them had Rybka already :wink:

edit yars => years
bob
Posts: 20943
Joined: Mon Feb 27, 2006 7:30 pm
Location: Birmingham, AL

Re: Move 69 and move 70 of course

Post by bob »

Eelco de Groot wrote:
F. Bluemers wrote: the guy with shark/cryptic had nicks ending with 99.I would not be suprised at all if it was the same shark from the hydra team.
The same team that also had a "ground zero" engine
Maybe they don't like Americans. That would explain why they want to beat Rybka and then give away their engine for free. Is this politically motivated? And who was it again that welcomed Bruce Moreland with "The only good American..."
wasn't just Bruce. Jackass sent it to me and some others as well, as a sort of "group laugh" apparently.

But I don't understand, if the people on Playchess concluded years ago that this Shark is a Rybka clone, why is it still playing there? Normally every Rybka clone gets barred by Harvey Williamson and his boss, why not this one? And if this is not the genuine Shark all the more reason not to allow this name when there is good evidence it is just a Rybka clone.

Why does nobody protest against this nonsense. And if Playchess members did protest, apparently nothing was done with it. Don't Playchess care about public relations anymore?

Eelco
User avatar
Graham Banks
Posts: 44580
Joined: Sun Feb 26, 2006 10:52 am
Location: Auckland, NZ

Re: Move 69 and move 70 of course

Post by Graham Banks »

bob wrote:
Eelco de Groot wrote:
F. Bluemers wrote: the guy with shark/cryptic had nicks ending with 99.I would not be suprised at all if it was the same shark from the hydra team.
The same team that also had a "ground zero" engine
Maybe they don't like Americans. That would explain why they want to beat Rybka and then give away their engine for free. Is this politically motivated? And who was it again that welcomed Bruce Moreland with "The only good American..."
wasn't just Bruce. Jackass sent it to me and some others as well, as a sort of "group laugh" apparently.
Sickos - no need for this sort of thing in computer chess. :(
gbanksnz at gmail.com
F. Bluemers
Posts: 880
Joined: Thu Mar 09, 2006 11:21 pm
Location: Nederland

Re: Move 69 and move 70 of course

Post by F. Bluemers »

Graham Banks wrote:
bob wrote:
Eelco de Groot wrote:
F. Bluemers wrote: the guy with shark/cryptic had nicks ending with 99.I would not be suprised at all if it was the same shark from the hydra team.
The same team that also had a "ground zero" engine
Maybe they don't like Americans. That would explain why they want to beat Rybka and then give away their engine for free. Is this politically motivated? And who was it again that welcomed Bruce Moreland with "The only good American..."
wasn't just Bruce. Jackass sent it to me and some others as well, as a sort of "group laugh" apparently.
Sickos - no need for this sort of thing in computer chess. :(
It was a bad joke. It dissapeared at the same speed it became known :shock:
I wished more clones would do that :roll:
bob
Posts: 20943
Joined: Mon Feb 27, 2006 7:30 pm
Location: Birmingham, AL

Re: Move 69 and move 70 of course

Post by bob »

F. Bluemers wrote:
Graham Banks wrote:
bob wrote:
Eelco de Groot wrote:
F. Bluemers wrote: the guy with shark/cryptic had nicks ending with 99.I would not be suprised at all if it was the same shark from the hydra team.
The same team that also had a "ground zero" engine
Maybe they don't like Americans. That would explain why they want to beat Rybka and then give away their engine for free. Is this politically motivated? And who was it again that welcomed Bruce Moreland with "The only good American..."
wasn't just Bruce. Jackass sent it to me and some others as well, as a sort of "group laugh" apparently.
Sickos - no need for this sort of thing in computer chess. :(
It was a bad joke. It dissapeared at the same speed it became known :shock:
I wished more clones would do that :roll:
Now there's a thought. :) But I suspect that from here on, every tournament is going to have at least a half-dozen clones/copies if not more, based on recent events and happenings.
User avatar
Mike S.
Posts: 1480
Joined: Thu Mar 09, 2006 5:33 am

Re: Move 69 and move 70 of course

Post by Mike S. »

Maybe (and I'd say most probably), there is no clone at all in this case but only an edited name for the display in the players list. That doesn't even require to change an (UCI) engine. UCI engines are registered to the interface by an ASCII file with .uci extension. If it's registered with non-default engine settings, the interface forces to extend the engine name, but it is not possible to change it completely via the interface. But you can put any random name into the .uci file manually, and it will be shown:

Image

:mrgreen:

There is no such engine "A random name 1.234"! :roll: That was just a technical demonstration to show that we are - most probably - not really talking about a clone here, in this specific case. Just a wrong name in some list certainly wouldn't constitute a clone if no clone engine exists, actually. So far, I see no signs that any copyright claims were made or that software was distributed somehow... I only see a name which sometimes appears in a players list on a server. I don't see any clone.

By that, I don't mean to say that it's good behaviour. Of course, I would prefer that engines appear under their true names, everywhere. But what I see here has nothing to do with the cases where engines are distributed with wrong copyright claims, or software taken and published without permission etc.etc. These two totally different scenarios should be distinguished from each other.
Regards, Mike
bob
Posts: 20943
Joined: Mon Feb 27, 2006 7:30 pm
Location: Birmingham, AL

Re: Move 69 and move 70 of course

Post by bob »

Mike S. wrote:Maybe (and I'd say most probably), there is no clone at all in this case but only an edited name for the display in the players list. That doesn't even require to change an (UCI) engine. UCI engines are registered to the interface by an ASCII file with .uci extension. If it's registered with non-default engine settings, the interface forces to extend the engine name, but it is not possible to change it completely via the interface. But you can put any random name into the .uci file manually, and it will be shown:

Image

:mrgreen:

There is no such engine "A random name 1.234"! :roll: That was just a technical demonstration to show that we are - most probably - not really talking about a clone here, in this specific case. Just a wrong name in some list certainly wouldn't constitute a clone if no clone engine exists, actually. So far, I see no signs that any copyright claims were made or that software was distributed somehow... I only see a name which sometimes appears in a players list on a server. I don't see any clone.

By that, I don't mean to say that it's good behaviour. Of course, I would prefer that engines appear under their true names, everywhere. But what I see here has nothing to do with the cases where engines are distributed with wrong copyright claims, or software taken and published without permission etc.etc. These two totally different scenarios should be distinguished from each other.
I'm not worried about the distribution issue, I'm more concerned with playing in a tournament and having more than one copy of Rybka 3, more than one copy of Stockfish, etc... That is a real problem and is happening regularly.
Tord Romstad
Posts: 1808
Joined: Wed Mar 08, 2006 9:19 pm
Location: Oslo, Norway

Re: Move 69 and move 70 of course

Post by Tord Romstad »

bob wrote:I'm not worried about the distribution issue, I'm more concerned with playing in a tournament and having more than one copy of Rybka 3, more than one copy of Stockfish, etc... That is a real problem and is happening regularly.
Do you have any examples? I know a few cases in the distant past, but I don't recall any recent examples of something like this.
lonola

Re: Move 69 and move 70 of course

Post by lonola »

Has anyone thought of the possibility that if you have "rybka.exe" and you rename it in windows to "othername.exe" it will be reported as another engine? It could be a kid having a bit of a laugh.