Computer Chess Club Archives


Search

Terms

Messages

Subject: nonlinear progress of rybka: is programing more vodoo magic than logic?

Author: Joseph Ciarrochi

Date: 05:27:58 02/12/06


I tested rybka beta 12 extensively, assuming that rybka 13b had only minor
improvements in strength (there were minor changes to hash table behavior and
EGTB was added. Both of these where not expected to have a big impact.)

However, it looks like the biggest jump in strength has occured between 12 and
13b.

For example, (using all the same conditions and openings)

Rybka 12 versus fritz  9           52.5-47.5
Rybka 13b versus fritz 9           59.5 - 40.5

Anothe piece of evidence comes from richard bloods tournment results, which
again suggest that 13b is a big improvement over 12. indeed, the original beta
and beta 9 are, at this point in his tournement, doing better than 12 (see his
previous post and inserted table below)

I wonder how much insight programers really have in what is or is not an
improvement.


Could EGTB in version 13 make this big a difference over version 12?



1. Rybka 1.01 Beta 13b  77-100
2. Rybka 1.0 Beta       75.5-100
3. Deep Shredder 9      74-100
4. Rybka 1.01 beta 9    72.5-100
5. Fruit 2.2.1          71-100
6. Deep Junior 9        69-100
7. Rybka 1.01 beta 10   68.5-100
8. Hiarcs 10            65-100
9. Fritz 9              64.5-100
10. Rybka 1.01 Beta 10d 63-100
11. Deep Fritz 8        61.5-100
12. CM10 Magic II       60-100
13. Rybka 1.01 beta 12  58-100
14. Rybka 1.01 beta 11  57.5-100
15. CM10 Behemoth II    56-100
16. Shredder 9          55.5-100
17. Rybka 1.0 Preview   55-100
18. Deep Junior 8       54.100
19. CM10 GMkiller       53.5-100 (own settings)
20. Junior 9            53-100
21. Spike 1.1           52-100
22. Toga II 1.1         51.5-100
23. Fritz 8             51-100
24. Fritz 7             49.5-100
25. Hydra v.8           48-100
26. Zappa 1.1           47.5-100
27. X3d Fritz           46.5-100
28. Fritz In Bahrain    45.5-100
29. Fritz For Fun 4     44-100
30. Ktulu 7.5           43-100
31. Ktulu 7.1           42.5-100
32. SmarThink 1.00      41-100
33. Chess Tiger 2004    40-100
34. Aristach 4.50       39.5-100
35. AnMon 5.27          38-100



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.