When will we see HOUDINI in official tournaments?

[Houdini]

Surely you're aware that Critter 1.2 and 1.4 are nearly indistinguishable from Houdini 1.5a in the similarity dendogram, and that this is not by accident, but by acknowledged RE-ing of Houdini 1.5a.

Either you have a strange sense of humor or you are completely insane.

Check out this old thread: http://www.talkchess.com/forum/viewtopic.php?p=412962.
The reported "similarity score" between Houdini 1.5a and Critter 1.2 is 61.4%.

It demonstrates that the arbitrary "60% similarity" rule is already broken at the first tournament that is supposed to use it.

Robert

[michiguel]

The more relevant issue is if your current engine stays below the required 60% similarity, which is already pretty tolerant.

LOL. What a joke.
I notice that the first CSVN tournament (Leiden) that is supposed to use this "60% similarity" rule has accepted Critter as participant.
Surely you're aware that Critter 1.2 and 1.4 are nearly indistinguishable from Houdini 1.5a in the similarity dendogram, and that this is not by accident, but by acknowledged RE-ing of Houdini 1.5a.

I do not remember RV ever acknowledging that he took anything from Houdini. I do remember that he acknowledged using the PST from Ippos and that he has read other people's code. That is not the same of what you imply. The PSTs is how he justified the similarity to the Ippos.

I am not saying that you are right or wrong, but if you want to follow this accusation up, please open a thread in EO providing a link, data, whatever.

I suggest to wind this Critter issue down in this thread. Mentioning the similarity is a fact, but everything else... we are walking on thin ice.

Miguel

[Alexander Schmidt]

Surely you're aware that Critter 1.2 and 1.4 are nearly indistinguishable from Houdini 1.5a in the similarity dendogram, and that this is not by accident, but by acknowledged RE-ing of Houdini 1.5a.

Either you have a strange sense of humor or you are completely insane.

Check out this old thread: http://www.talkchess.com/forum/viewtopic.php?p=412962.
The reported "similarity score" between Houdini 1.5a and Critter 1.2 is 61.4%.

Thanks for the link. May I lead your attention to the similarity between Houdini and Ivanhoe? It is 62.36%. Why should someone reengeneer a Ipp* clone?

Seemse like you are serious and didn't joking.

[Rebel]

The more relevant issue is if your current engine stays below the required 60% similarity, which is already pretty tolerant.

LOL. What a joke.
I notice that the first CSVN tournament (Leiden) that is supposed to use this "60% similarity" rule has accepted Critter as participant.
Surely you're aware that Critter 1.2 and 1.4 are nearly indistinguishable from Houdini 1.5a in the similarity dendogram, and that this is not by accident, but by acknowledged RE-ing of Houdini 1.5a.

The real joke is that you don't know what version will play, now do you?

[Houdini]

I suggest to wind this Critter issue down in this thread. Mentioning the similarity is a fact, but everything else... we are walking on thin ice.

Miguel

The point of my post was not "accusing" Critter (I don't really care about that).
My point was about the "60% rule" which may prove not to be very useful for tournaments.

Robert

[Houdini]

The real joke is that you don't know what version will play, now do you?

That is your problem, not mine...

[Dr.Wael Deeb]

Surely you're aware that Critter 1.2 and 1.4 are nearly indistinguishable from Houdini 1.5a in the similarity dendogram, and that this is not by accident, but by acknowledged RE-ing of Houdini 1.5a.

Either you have a strange sense of humor or you are completely insane.

He got both

[peter]

The more relevant issue is if your current engine stays below the required 60% similarity, which is already pretty tolerant.

Hi!

Did I get this right, that the 60% similarity has to be tested between the two engines' versions nominated?
Just in case, similarity test was positive (>60%) between Rybka and Critter (has it already been tested for this two special versions and what about the very different kind of hardware competing?), which one of both would be disqualified?
And just in case, Houdini would compete too and similarity was tested to be >60%, would Houdart and Vida have to decide by themselves, which one engine to withdraw?

[neelbasant]

The more relevant issue is if your current engine stays below the required 60% similarity, which is already pretty tolerant.

LOL. What a joke.
I notice that the first CSVN tournament (Leiden) that is supposed to use this "60% similarity" rule has accepted Critter as participant.
Surely you're aware that Critter 1.2 and 1.4 are nearly indistinguishable from Houdini 1.5a in the similarity dendogram, and that this is not by accident, but by acknowledged RE-ing of Houdini 1.5a.

Robert, I have immense respect for you as a programmer ( houdini 1.5a)
But making serious accusation to a respected person and questioning the originality of critter is waste of time .
will anyone be agree in the whole world in the subject that critter is REed from Houdini 1.5a ? except you.

Poll " Critter is a REed engine from Houdini"

No.................1000000000000000000
Yes................1 (it is you)

[Houdini]

Hi!

Did I get this right, that the 60% similarity has to be tested between the two engines' versions nominated?
Just in case, similarity test was positive (>60%) between Rybka and Critter (has it already been tested for this two special versions and what about the very different kind of hardware competing?), which one of both would be disqualified?
And just in case, Houdini would compete too and similarity was tested to be >60%, would Houdart and Vida have to decide by themselves, which one engine to withdraw?

Very good questions.
More specifically, in the case that I question, see Ed's own page http://www.top-5000.nl/clone.htm to find for the "Critter 1.4-Houdini 1.5a" pair the value of 61.91%.

As to "have to decide by themselves which engine to withdraw", the convergence of the similarity numbers is self-evident:
- Critter 1.0-Houdini 1.5a: 57.4%
- Critter 1.2-Houdini 1.5a: 61.4%
- Critter 1.4-Houdini 1.5a: 61.9%

Let me repeat again that my goal is not to accuse Richard or to have him withdraw from Leiden.
I simply want to show that the "60%" rule may not be an improvement of the ICGA Rule #2 after all...
Then again, I'm quite sure that nobody at Leiden even bothered with the silly rule, it's just an invention for people at chess forums .

Robert