Install gaviotatb by entering the following commands in the terminal:
sudo apt update sudo apt install gaviotatb
Description:
Gaviota chess endgame tablebases
Gaviota is a chess engine. Gaviota generates and uses its own Endgame Tablebases (EGTBs) with its own format. It contains "distance to mate" information, which is how many moves are needed to mate the opponent, or to be mated. This package provides the pre-generated Gaviota endgame tablebases.
Homepage: https://sites.google.com/site/gaviotachessengine/
Version: 0.4-2
Section: universe/database