New rofChade released: version 2.2

After a longer period of little activity I got a boost to develop a new rofChade version after trying a retune with the “lichess-good” set as discussed in the topic about Texel tuning viewtopic.php?f=7&t=71469#p807692, I got an elo increase of around 30 elo! So thanks Fabian, Jon and Vivien for discussing the topic and making the position set available!

Version 2.2 also contains multiple changes which resulted in an estimated elo gain of 50/70 elo single threaded. Because of some changes to hash table and multi threading the elo gain with multiple threads is hopefully a bit higher.

rofChade 2.2 can be downloaded under the tab “Download”. Under the tab “Releases” the version changes are defined.

Thanks to everybody who takes interest in rofChade!

New rofChade released: version 2.1

There is a new “official” release available of rofChade, version 2.1. Between version 2.0 and 2.1 multiple intermediate versions have been participating in different tournaments (TCEC, CCC, International GSEI web tournament, Swiss tournament and Graham’s Amateur Series).

In addition to multiple search optimizations, version 2.1 also contains syzygy Tablebase support via the fathom library. All the changes of version 2.1 are shown under the release tab.

A special thanks go to Ronald de Man, Basil Falcinelli and Jon Dart for making the implementation of endgame Tablebases (syzygy) a breeze, and to all the testers, who devote a lot of time in testing rofChade (and many other engines).

Finally, thanks to everybody who takes interest in rofChade!

New version with regular eval released: rofChade 2.0

A preliminary version of rofChade with regular evaluation terms has been participating in TCEC season 14, so it’s time to release an “official” version which is entitled version 2.0.

Version is a slightly enhanced version compared to the one that was competing at TCEC. For more details see the release page.

The Windows and Mac versions can be downloaded from the download page.