Second Book File: path of the second opening book. It deduces the format of the book from the file extension. Chiron supports Polyglot, CTG and Arena opening books. If it’s not, the GUI will handle the opening book.īook File: path of the opening book. OwnBook: it must be checked if you want Chiron to use its own opening book. Chiron’s time management is different when pondering is allowed. Ponder: it is checked if pondering (ie thinking during opponent’s time) is allowed. It can be LOAD_NONE if you don’t want to load bitbases in RAM at all, LOAD_4MEN to load all the 4 pieces bitbases, SMART_LOAD to load the most used and LOAD_5MEN to load all the 5 pieces bitbases (about 225MB) Scorpio Egbb Load Type: type of bitbases loading in RAM at program startup. It contains the results of positions for which the Scorpio bitbases have been already probed. Scorpio Egbb Cache: size of the Scorpio bitbases cache in MB. Scorpio Egbb Path: location of Scorpio bitbases. Use Scorpio Egbb: it must be checked if you want Chiron to use Scorpio endgame bitbases. Syzygy50MoveRule: uncheck it if you want Chiron to ignore the 50 moves rule otherwise leave it checked. It contains the results of positions for which the Gaviota tablebases have been already probed. GaviotaTbCache: size of the Gaviota EGTB cache in MB. Chiron will automatically detect the compression scheme. GaviotaTbPath: location of the Gaviota endgame tablebases. It contains the results of positions for which the Nalimov tablebases have been already probed. NalimovCache: size of the Nalimov EGTB cache in MB. NalimovPath: location of the Nalimov endgame tablebases. Tablebases Probe Depth: minimum depth for probing the endgame tablebases. Tablebases Usage: it can be Never (tablebases never probed), Only At Root (tablebases probed only at the root when on the board there are 5 or less pieces) or Everywhere (tablebases probed also in the search). Set it to Disabled if you don’t want to use tablebases. Tablebases: type of endgame tablebases to use. Log File: if checked Chiron will create a log file in the subfolder “logs”. Don’t use more than the available physical memory otherwise also virtual memory (ie the hard disk) will be used and Chiron will run slower.Ĭlear Hash: when this button is pushed the hash table, the pawn hash table and the evaluation cache are cleared.
The maximum size is 2GB in the 32 bit version and 1TB in the 64 bit version.
Threads: number of threads Chiron will use while thinking.