Strelka 2.0 B running for the IPON ...

[Damir]

Robbo source is public domain, which means everyone can take a look at

the source and improve it. If he/she who improved Robbo don't

want to post the source together with the improvements they had made, it is

too bad. It is purely their own decision, whether or not they want to do that...

It is not for anyone else here to make that decision.

[Gian-Carlo Pascutto]

Robbo source is public domain

The facts disagree with you. Directly from the RobboLito source package:

RobboLito is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

[Dann Corbit]

Robbo source is public domain

The facts disagree with you. Directly from the RobboLito source package:

RobboLito is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

They realized their error, but for quite a while it was released as public domain. If fact, their own web site still says that it is public domain:
http://ippolit.wikispaces.com/Features

[Don]

Robbo source is public domain

The facts disagree with you. Directly from the RobboLito source package:

RobboLito is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

They realized their error, but for quite a while it was released as public domain. If fact, their own web site still says that it is public domain:
http://ippolit.wikispaces.com/Features

My favorite quote on that page:

Furthermore, the IPPOLIT cannot provide the supported users without the quality English (lacking).

As Gian-Carlo points out, it's extremely unlikely they would go after anyone as they made this open, regardless of whether it's open source or public domain. It's odd that the website says public domain but the source code claims to have the GPL license.

If it's really public domain then anybody could just use it and even market it. If I understand public domain correctly I could put my name on Robbo and with no other changes market it. I wonder what the comrades and "Decembrists" would think of that?

[Dann Corbit]

Robbo source is public domain

The facts disagree with you. Directly from the RobboLito source package:

RobboLito is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

They realized their error, but for quite a while it was released as public domain. If fact, their own web site still says that it is public domain:
http://ippolit.wikispaces.com/Features

My favorite quote on that page:

Furthermore, the IPPOLIT cannot provide the supported users without the quality English (lacking).

As Gian-Carlo points out, it's extremely unlikely they would go after anyone as they made this open, regardless of whether it's open source or public domain. It's odd that the website says public domain but the source code claims to have the GPL license.

If it's really public domain then anybody could just use it and even market it. If I understand public domain correctly I could put my name on Robbo and with no other changes market it. I wonder what the comrades and "Decembrists" would think of that?

Here is my guess:
They initially released the project as public domain. Some months later, they realized it was a stupendous goof and changed the license. Anyone can use the version they released as public domain for any purpose that they choose. As for the new, GPL version, if you use that version you will have to abide by that license, I assume.

It's ugly code anyway (and full of awful gaffes). There is a greatly cleaned up version of it that is much easier to understand in SourceForge called gullchess that will teach anyone who wants to learn everything that is useful about the Robbolito/Ippolit etc. chess clump of stuff:
http://gullchess.sourceforge.net/

Gullchess is not SMP, but that is not important. Everything that is actually worthwhile from that tree of things is found in Gullchess.

There is no license information stated anywhere in Gullchess, so we should assume that it is copyright of Vadim Demichev (aka: thinkingalot).

[Dann Corbit]

Robbo source is public domain

The facts disagree with you. Directly from the RobboLito source package:

RobboLito is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

They realized their error, but for quite a while it was released as public domain. If fact, their own web site still says that it is public domain:
http://ippolit.wikispaces.com/Features

My favorite quote on that page:

Furthermore, the IPPOLIT cannot provide the supported users without the quality English (lacking).

As Gian-Carlo points out, it's extremely unlikely they would go after anyone as they made this open, regardless of whether it's open source or public domain. It's odd that the website says public domain but the source code claims to have the GPL license.

If it's really public domain then anybody could just use it and even market it. If I understand public domain correctly I could put my name on Robbo and with no other changes market it. I wonder what the comrades and "Decembrists" would think of that?

Here is my guess:
They initially released the project as public domain. Some months later, they realized it was a stupendous goof and changed the license. Anyone can use the version they released as public domain for any purpose that they choose. As for the new, GPL version, if you use that version you will have to abide by that license, I assume.

It's ugly code anyway (and full of awful gaffes). There is a greatly cleaned up version of it that is much easier to understand in SourceForge called gullchess that will teach anyone who wants to learn everything that is useful about the Robbolito/Ippolit etc. chess clump of stuff:
http://gullchess.sourceforge.net/

Gullchess is not SMP, but that is not important. Everything that is actually worthwhile from that tree of things is found in Gullchess.

There is no license information stated anywhere in Gullchess, so we should assume that it is copyright of Vadim Demichev (aka: thinkingalot).

I should point out that gullchess also has undefined behavior in reading beyond the end of some of its data arrays (the exact same behavior that is found in all the robbolito family for the same arrays).

[Dann Corbit]

Robbo source is public domain

The facts disagree with you. Directly from the RobboLito source package:

RobboLito is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

They realized their error, but for quite a while it was released as public domain. If fact, their own web site still says that it is public domain:
http://ippolit.wikispaces.com/Features

My favorite quote on that page:

Furthermore, the IPPOLIT cannot provide the supported users without the quality English (lacking).

As Gian-Carlo points out, it's extremely unlikely they would go after anyone as they made this open, regardless of whether it's open source or public domain. It's odd that the website says public domain but the source code claims to have the GPL license.

If it's really public domain then anybody could just use it and even market it. If I understand public domain correctly I could put my name on Robbo and with no other changes market it. I wonder what the comrades and "Decembrists" would think of that?

Here is my guess:
They initially released the project as public domain. Some months later, they realized it was a stupendous goof and changed the license. Anyone can use the version they released as public domain for any purpose that they choose. As for the new, GPL version, if you use that version you will have to abide by that license, I assume.

It's ugly code anyway (and full of awful gaffes). There is a greatly cleaned up version of it that is much easier to understand in SourceForge called gullchess that will teach anyone who wants to learn everything that is useful about the Robbolito/Ippolit etc. chess clump of stuff:
http://gullchess.sourceforge.net/

Gullchess is not SMP, but that is not important. Everything that is actually worthwhile from that tree of things is found in Gullchess.

There is no license information stated anywhere in Gullchess, so we should assume that it is copyright of Vadim Demichev (aka: thinkingalot).

I should point out that gullchess also has undefined behavior in reading beyond the end of some of its data arrays (the exact same behavior that is found in all the robbolito family for the same arrays).

p.s.
C:\pgn\winboard-engines\RobboLito-0.084>grepcarl public *.*
ingresso.c ( 29): "92th year from Revolution, PUBLICDOMAIN (workers)\n");

C:\pgn\winboard-engines>grepcarl gpl *.*

C:\pgn\winboard-engines>

[Milos]

I'm not so sure action against Ippolit is hopeless, because there is no question it is a "derivative" Even BB has clearly shown this.

This is a clear lie. It not only your interpretation it's manipulation and libel. Luckily for you authors of Ippo are unknown so there is noone to sue you for libel. You have no proofs. Moreover, you didn't even read BB's report. You've proven this at least three times so far.

So in my opinion it's easy to make the case that it's a derivate of Rybka 3, but I don't know if that is enough.

In my opinion it is so easy to make an engine that can destroy any chess engine that Don Dailey is capable of producing in his life, including the engine where he would copy & paste all of Robbo code (contrary to Komodo where only 30% of Robbo code has been copied so far).

Here is an interesting question: Robbo is GPL licensed, which means it's illegal to create a derivative work without also carrying the same licence. So is anything that is not open source but based on Robbo illegal? This is almost like dominoes.

Another lie. Robbo is public domain. You cannot create GPL by attaching it to public domain code. If you don't know that, maybe you should try to contact some lawyer who is certainly more knowledgeable than you in these matters.

P.S. I've just sent an email to Comodo is Creating Trust Online. I really hate the fact that my favorite firewall is called like some lousy piece of chess software, so it's about time to change this...

[Milos]

It's ugly code anyway (and full of awful gaffes). There is a greatly cleaned up version of it that is much easier to understand in SourceForge called gullchess that will teach anyone who wants to learn everything that is useful about the Robbolito/Ippolit etc. chess clump of stuff:
http://gullchess.sourceforge.net/

Gullchess is not SMP, but that is not important. Everything that is actually worthwhile from that tree of things is found in Gullchess.

There is no license information stated anywhere in Gullchess, so we should assume that it is copyright of Vadim Demichev (aka: thinkingalot).

Vadim Demichev should sue you for libel. I don't know if he's a member of this forum. If he is, then you've violated the charter in point 3, since your post in nothing but libelous.

[Gian-Carlo Pascutto]

p.s.
C:\pgn\winboard-engines\RobboLito-0.084>grepcarl public *.*
ingresso.c ( 29): "92th year from Revolution, PUBLICDOMAIN (workers)\n");

C:\pgn\winboard-engines>grepcarl gpl *.*

C:\pgn\winboard-engines>

Just like Fruit, the license info is in the copying.txt file in the directory above.