Twisted Logic against CB oldies (repeated)

[Mike S.]

8m+2s, AthlonXP@1439 MHz
128 MB hash each (Tiger 96 MB)
default pawn hash for TL (1 MB)
Balanced-16.CTG (normal, min.3)
ponder off, Fritz 8-GUI
3- and 4-piece tablebases
(not accessed by F 5.32 and TL)

I repeated yesterday's match, but with default pawn hash size of 1 MB instead of 8 MB. Also, the openings were different but the book used (for all) was the same.

Code: Select all

Twisted Logic 20080620   - Fritz 5.32                 3.0 - 3.0    +3/-3/=0  50.00%
Twisted Logic 20080620   - Fritz f.Fun 4 (8.130)      2.0 - 4.0    +0/-2/=4  33.33%
Twisted Logic 20080620   - Gambit Tiger 2.0           4.5 - 1.5    +3/-0/=3  75.00%
Twisted Logic 20080620   - Nimzo 8                    4.0 - 2.0    +4/-2/=0  66.67%
Twisted Logic 20080620   - Shredder 7.SE              4.5 - 1.5    +4/-1/=1  75.00%

Total result 18.0/30 (previously: 11,0/30). The performance in the second tournament represents a blitz level of ~2770 (CCRL) or ~2740 (CEGT). Yesterdays performance was only ~2600/2570. I don't know if the pawn hash size is responsible for the big difference, or if there is some statistical luck involved, or both. It have been only 30 games, each.

[Edsel Apostol]

Hi Mike,

Thanks for the test result.

I will try to review the code for possible pawn hash size bug.