The purpose of our rating lists is provide engine authors and enthusiasts with a general comparison of engine strength, plus other data that could be of interest to them.
For various reasons, there are some engines that we have not tested, therefore it is useful to look at other rating lists as well as ours. The inclusion or exclusion of engines in our lists should not be taken as our group making a statement about their legality or status.
We test chess engines for our own enjoyment and receive no payment for doing so.

The latest CCRL Rating Lists and Statistics are available for viewing from the following links:
http://computerchess.org.uk/ccrl/4040.live/ (40/40)
http://www.computerchess.org.uk/ccrl/404.live/ (40/4)
http://www.computerchess.org.uk/ccrl/404FRC/ (FRC 40/4)

Please note that the three lists are often updated separately to each other.
The links given in each update report will give you the currently up to date lists.

The links to the various rating lists can be found just beneath the default Best Versions list (as in this screenshot). Specific 32-bit rating lists are denoted as such to the right of the default list in each category. The default lists contain the 64-bit engines.
Graham Banks