Surprise...

[Albert Silver]

I just looked at this more carefully, I thought it was a hand picked example but it's right after playing "e4" in the opening. Not only do the nodes match exactly, but so does the PV. That is pretty damning evidence even by itself.

Do you have that version of Houdini somewhere that I can get a copy? I want to check this myself.

By the way, when I built the similarity tester I found that 2 of the closest matching programs was Robolitto and Houdini. The match percentage was higher than even 2 different releases of most programs.

Forgive my confusion, but I do not understand this thread at all. That Houdini is an IPPO is very old news, so why is this being discussed here as if it were some sort of revelation?

[Hood]

Pandora's box.

[Don]

I just looked at this more carefully, I thought it was a hand picked example but it's right after playing "e4" in the opening. Not only do the nodes match exactly, but so does the PV. That is pretty damning evidence even by itself.

Do you have that version of Houdini somewhere that I can get a copy? I want to check this myself.

By the way, when I built the similarity tester I found that 2 of the closest matching programs was Robolitto and Houdini. The match percentage was higher than even 2 different releases of most programs.

Forgive my confusion, but I do not understand this thread at all. That Houdini is an IPPO is very old news, so why is this being discussed here as if it were some sort of revelation?

I think it's because now Houdini is trying to go commercial with a GPL program without releasing the source code or even admitting its origins.

[Houdini]

I think it's because now Houdini is trying to go commercial with a GPL program without releasing the source code or even admitting its origins.

Funny, for you the problem only arises because Houdini is now commercial?

Let me state one more time, for the record, that Houdini does NOT contain any licensed code, GPL or other, except for the Gaviota probing code which is copyright M. Ballicora.

Let me state one more time, for the record, that I have acknowledged FROM THE START the sources of inspiration for Houdini, unlike most other engine developers (including yourself) who freely use all kind of sources (including Ippolit, Stockfish, etc, apparently now you even use Critter sources) without giving the slightest acknowledgement whatsoever.

Robert

[Frank Quisinsky]

Hi Don,

that is right but what you can do?

Same situation we had more times, thinking on the messages by Lance Perkins, others.

From my point of view I can't understand it. Why such a programmer do such things? I think Robert have enough knowledge about programming to start the development of a complete new one, without to use sources by others. After all what I read from him, this should be clear.

Best
Frank

[Alexander Schmidt]

Let me state one more time, for the record, that I have acknowledged FROM THE START the sources of inspiration for Houdini,

Don't you think that there is a difference between "inspiration" and "taking the complete code of an engine, do some improvements and sell it"?

What you did is ethically a really poor behaviour and probably violating copyright.

[M ANSARI]

Since when was Ippolit GPL ?? I thought it was released as Public Domain code with absolutely zero restrictions.

[Terry McCracken]

I think it's because now Houdini is trying to go commercial with a GPL program without releasing the source code or even admitting its origins.

Funny, for you the problem only arises because Houdini is now commercial?

Let me state one more time, for the record, that Houdini does NOT contain any licensed code, GPL or other, except for the Gaviota probing code which is copyright M. Ballicora.

Let me state one more time, for the record, that I have acknowledged FROM THE START the sources of inspiration for Houdini, unlike most other engine developers (including yourself) who freely use all kind of sources (including Ippolit, Stockfish, etc, apparently now you even use Critter sources) without giving the slightest acknowledgement whatsoever.

Robert

We'll see. You too will come under great scrutiny after the Fruit/Rybka/Crafty Affair and the illegal release of Robbo/Impolit/Ivanoe code You should, considering your source of information.

[Terry McCracken]

Since when was Ippolit GPL ?? I thought it was released as Public Domain code with absolutely zero restrictions.

Where do you think it came from??? You people are hopeless.

[Alexander Schmidt]

Since when was Ippolit GPL ?? I thought it was released as Public Domain code with absolutely zero restrictions.

So if I buy a software without copyrigth remark, I am allowed to resell it?

BTW we are talking about a Robbo version of Kranium, it was released under GPL.