Naum 4.2 FRC

[Graham Banks]

From Ray:

Naum 4.2 64-bit has been added to the ratings list. The pure list is the one I prefer:

http://computerchess.org.uk/ccrl/404FRC/index.html

It is showing as approx +44 ELO stronger than Naum 4, so the author's estimate of +50 ELO is sound. The statistical error margins with just 700 games here are still quite big.

[Uri Blass]

I saw bigger estimate than 50 elo

"Considering the estimated improvement of more then 50 ELO compared to Naum 4.0" are the words in the following link.

http://naumchess.brinkster.net/

I also do not see more than 50 elo rating improvement in another list.

see http://www.inwoba.de/

4 Naum 4.2 : 2818 13 13 1900 68.2 % 2686 37.7 %
12 Naum 4 : 2772 9 9 3200 57.0 % 2723 40.6 %

Note that I bought Naum4.2 inspite of the fact that my best estimate is slightly less than 50 elo improvement relative to Naum4.

Uri

[Graham Banks]

It's rating has improved again, and is now +51 ELO after 1,100 games.

[Dann Corbit]

It seems that his estimate of more than 50 Elo was pretty good.