The 9.99 version of Pachi is available as a free download on our website. The program's installer file is generally known as pachi.exe. The program is included in Games. The actual developer of the free program is Petr Baudis. The following versions: 9.9 and 1.0 are the most frequently downloaded ones by the program users.
From the developer:
Pachi is a simple modular framework for programs playing the game of Go/Weiqi/Baduk, and a reasonably strong engine built within this framework. The resulting binary program ` Pachi ` is a GTP client. Connect to it with your favorite Go program interface (e.g. gogui or qgo), or use kgsGtp to connect it to KGS. The pachi program can take many parameters, as well as the particular engine being used. The defaults should be fine for initial usage.
You may want to check out more software, such as GW Team Builder, rFactor Ignition or DM Secretary, which might be related to Pachi.