Dirty and EveAnn are Windows Winboard compatible chess engines. They are console programs, to use them you need a graphical interface (GUI). The most popular are Winboard, Scid, Arena, Cutechess . . . you can find them easily. Also there are lot of tutorials to install the apps and the engines.
Dirty is a Winboard compatible Chess Engine written by Pradu Kannan (Buzz), Fonzy Bluemers and Andrés Valverde (earlier versions) . Later versions are maintained by Fonzy. It is quite strong. Latest version freely downloadable is :
Dirty Catpaw ( April 27, 2025 )
Read the zipped README file for more info.
Older versions:
Dirty Duna ( 3.012 ELO CCRL )
Dirty Cucumber (2.941 ELO CCRL)
EveAnn is a small Winboard chess engine written by Andrés Valverde. From version 2.0 it uses NNUE based on Danasah 9.1 dananet3.nnue, reinforced with games from CCRL+CEGT played at very long time control (more than 300 million positions. (Nor search neither eval from SF). You can download and use it completely for free :
EveAnn 3.4 (Some bugs fixed. Some search tweaks, 3.200 ELO CCRL aprox. June 13, 2025 )
Older versions:
EveAnn 3.2 (Some bugs fixed. around 3.150 ELO CCRL . 01/05/2025 changes in readme.txt inside the package. Only Windows 64-bit available)
EveAnn 3.1 (around 3.140 ELO CCRL . 26/04/2025 changes in readme.txt inside the package. Only Windows 64-bit available)
EveAnn 3.0 x64 (3.107 ELO CCRL . 11/01/2025 changes in readme.txt inside the package)
EveAnn 3.0 x32 (In case the 64-bit version is not running in your PC.)
EveAnn 2.2 (bug-fix 3.037 ELO CCRL)
EveAnn 2.1 (3.035 ELO CCRL)
EveAnn 2.0 (2.850 ELO CCRL aprox)
EveAnn 1.73 (HCE 2.345 ELO CCRL)
EveAnn 1.71 (2.300 ELO CCRL)
Feel free to contact me at andres(dot)valverde(dot)toresano@gmail(dot)com