Strongest Cyclone xTreme version?

[Dann Corbit]

Does anyone know what the strongest version of Cyclone xTreme is? default, Fear, Rage, Wrath, Fury.....

I was planning on putting the strongest in a tournament I am going to run, but I don't want to have to do all the testing I'm sure has already been done to find the best.

Thanks,
Peter

In my opinion, it's Cyclone xTreme Fury, but they're all pretty close in strength.

It certainly has the most fearsome name of the bunch.
Ironic, in some sense, with genesis from a program called 'fruit'.

[Adam Hair]

From an earlier test I ran:

Toga/Cyclone testing (3248 games)

Windows XP(32 bit)
P4 2800 MHz
256 MB Hash
Arena 2.01
Ponder off
3' 1" time control
3/4 men EGTB and eggb

Code: Select all

Rank Name                                Elo    +    - games score oppo. draws 
   1 Rybkav2.3.2a.w32                   2949   24   24   498   68%  2827   32% 
   2 Stockfish_14_ja                    2898   24   24   493   60%  2831   30% 
   3 Thinker54d Inert (SPwin32)         2896   23   23   500   60%  2831   36% 
   4 Cyclone xTreme Wrath               2832   23   23   497   49%  2836   40% 
   5 Cyclone xTreme Rage                2825   23   23   499   48%  2837   37% 
   6 Cyclone xTreme Fury                2824   23   23   495   48%  2837   42% 
   7 TogaII141SE_TE-1cpu                2822   23   23   504   48%  2837   37% 
   8 Toga2_141se(1cpu)                  2818   23   23   504   47%  2838   37% 
   9 Cyclone xTreme                     2818   23   23   499   47%  2838   35% 
  10 Cyclone xTreme Fear                2816   23   23   499   47%  2837   38% 
  11 Grapefruit 1.0 w32 Intel SSE2 PGO  2809   23   23   499   46%  2838   38% 
  12 Fruit-2-3-1                        2800   23   23   504   44%  2839   36% 
  13 Toga II 2.0 SE                     2765   23   23   505   38%  2842   36% 

Including more engines from outside the Fruit/Toga family might tell a
different story, but I think there is little difference in strength between the
different versions.

[Denis P. Mendoza]

Does anyone know what the strongest version of Cyclone xTreme is? default, Fear, Rage, Wrath, Fury.....

Cyclone is a dead project. The author has dropped the 'Cy' and is working on a Rybka 'Clone' now

Try this more interesting engine, Protector. A 64&32bit, bit-based, Toga MP with Nalimov support !!
http://dl.dropbox.com/u/5047625/protector-132_ja.zip

Yes, but I've seen some source updates for v1.3.3 and compiled them for beta testing here http://www.computerchess.info/tdbb/phpB ... 4&start=50

Just for a trial test.

[michiguel]

Does anyone know what the strongest version of Cyclone xTreme is? default, Fear, Rage, Wrath, Fury.....

Cyclone is a dead project. The author has dropped the 'Cy' and is working on a Rybka 'Clone' now

Try this more interesting engine, Protector. A 64&32bit, bit-based, Toga MP with Nalimov support !!
http://dl.dropbox.com/u/5047625/protector-132_ja.zip

Yes, but I've seen some source updates for v1.3.3 and compiled them for beta testing here http://www.computerchess.info/tdbb/phpB ... 4&start=50

Just for a trial test.

How come GPL code end up with non-free code like Nalimov's?

Miguel

[Denis P. Mendoza]

Does anyone know what the strongest version of Cyclone xTreme is? default, Fear, Rage, Wrath, Fury.....

Cyclone is a dead project. The author has dropped the 'Cy' and is working on a Rybka 'Clone' now

Try this more interesting engine, Protector. A 64&32bit, bit-based, Toga MP with Nalimov support !!
http://dl.dropbox.com/u/5047625/protector-132_ja.zip

Yes, but I've seen some source updates for v1.3.3 and compiled them for beta testing here http://www.computerchess.info/tdbb/phpB ... 4&start=50

Just for a trial test.

How come GPL code end up with non-free code like Nalimov's?

Miguel

Miguel,

I don't know about this technicality, but as long as he has permission for the Nalimov code, it is simply/practically legal.

Denis

[michiguel]

Does anyone know what the strongest version of Cyclone xTreme is? default, Fear, Rage, Wrath, Fury.....

Cyclone is a dead project. The author has dropped the 'Cy' and is working on a Rybka 'Clone' now

Try this more interesting engine, Protector. A 64&32bit, bit-based, Toga MP with Nalimov support !!
http://dl.dropbox.com/u/5047625/protector-132_ja.zip

Yes, but I've seen some source updates for v1.3.3 and compiled them for beta testing here http://www.computerchess.info/tdbb/phpB ... 4&start=50

Just for a trial test.

How come GPL code end up with non-free code like Nalimov's?

Miguel

Miguel,

I don't know about this technicality, but as long as he has permission for the Nalimov code, it is simply/practically legal.

Denis

Of course it is legal, I am not questioning that. The author can do whatever he wants with his code. But, it is not GPL anymore if it contains non-free code. I don't know, it sounds weird to me.

Miguel

[Michel]

Of course it is legal, I am not questioning that. The author can do whatever he wants with his code. But, it is not GPL anymore if it contains non-free code. I don't know, it sounds weird to me.

I think to handle this the author has to add an exception to the GPL license (which he can do if he is the sole author) allowing for linking against certain specific non-free software.

This being said, now that Gaviota table bases exist, there seems to be zero reason for linking against Nalimov table bases.

[alpha123]

Of course it is legal, I am not questioning that. The author can do whatever he wants with his code. But, it is not GPL anymore if it contains non-free code. I don't know, it sounds weird to me.

I think to handle this the author has to add an exception to the GPL license (which he can do if he is the sole author) allowing for linking against certain specific non-free software.

This being said, now that Gaviota table bases exist, there seems to be zero reason for linking against Nalimov table bases.

Gaviota tablebases are DTM and not DTC, right?

Peter

[tmokonen]

Gaviota tablebases are DTM and not DTC, right?

Peter

They are indeed distance to mate tablebases.

[Denis P. Mendoza]

Does anyone know what the strongest version of Cyclone xTreme is? default, Fear, Rage, Wrath, Fury.....

Cyclone is a dead project. The author has dropped the 'Cy' and is working on a Rybka 'Clone' now

Try this more interesting engine, Protector. A 64&32bit, bit-based, Toga MP with Nalimov support !!
http://dl.dropbox.com/u/5047625/protector-132_ja.zip

Yes, but I've seen some source updates for v1.3.3 and compiled them for beta testing here http://www.computerchess.info/tdbb/phpB ... 4&start=50

Just for a trial test.

How come GPL code end up with non-free code like Nalimov's?

Miguel

Miguel,

I don't know about this technicality, but as long as he has permission for the Nalimov code, it is simply/practically legal.

Denis

Of course it is legal, I am not questioning that. The author can do whatever he wants with his code. But, it is not GPL anymore if it contains non-free code. I don't know, it sounds weird to me.

Miguel

Miguel,

I've read again the new GPLv3 FAQ (used by Protector) and saw your point here. The clause involving "aggregate' code is still debatable. http://www.gnu.org/licenses/gpl-faq.html

Though legality to use Nalimov code is ok provided permission from author, there is a contradiction on how the modified code will be licensed when distributed to public. For private use, it is not a problem. I hope FSF has a good answer for this in case there is a complaint. There has to be an exception somewhere.

This is a different case compared to Crafty, Thor's Hammer and Brutus which are not GPLed. I wonder what license they are using!


This has to be very clear especially for future cases involving free open source chess engines who will go the same route.

But with Gaviota EGTB around, it will be another option for Protector to keep things straight.

Software distribution is a very sensitive/complicated matter sometimes, especially with the various licenses, etc. But I hope Protector is given the same respect as the rest of the so-called "derivatives".

Thanks.

Denis