round robin

Here are some results of a round robin match with time control 1 minute + 2 second increment, same book, reversed colors, 512 mb hash, pb off.

Rybka3x64(8cpus+tbs) 15/24
IvanHoev81x64(4cpus) 15/24
Igorrit0086v8x64(8cpus) 14/24
IvanHoe1x64(4cpus) 13.5/24
DeepShredder12x64(8cpus+tbs) 2.5/24

It seems IvanHoev81x64 is the strongest engine here, but many more games would need to be run to confirm this. IvanHoev81 was using only 4 cpus and scored the same as Rybka3 with 8 cpus. Anyway, I see some newer releases have come....

WOOT my first results in a 1' 1" match reversed colors permanet brain turned on 4 cpu vs 4 cpu.

+23 =56 -7 Ivanhoe v81a winning!! vs Deep Rybka 3 x64 also this is a +65 elo over Rybka.

Also wanted to add that this is the first engine that has not crashed for me so far!!! been runing over 4 hours now

Here's another round robin with same conditions...

IvanHoev81(4cpus) 23.5/42
IvanHoev81a(8cpus) 20.5/42
Rybka3x64(8cpus+tbs) 20/44

What's strange here is that IvanHoev81 with 4 cpus is outperforming IvanHoev81a with 8 cpus. Unfortunately FireBirdx32 crashes when I load it into the tournament, but I see the x64 version is out now. Note that the engines didn't play the same number of games because the tournament crashed.