A recompiled chess05gnu.pas from "Frey, Atkin, Chess 0.5, 1978"
The original version and comments are can found in that sites:
http://www.andreadrian.de/schach/
http://www.moorecad.com/standardpascal/misc.html
and
http://www.moorecad.com/standardpascal/ByteChess.txt
In lazarus forum one of user (toaopeter) asked a help for compiling old chess program :
http://forum.lazarus.freepascal.org/index.php/topic,42579.0.html
However this repo created for historical chess software.
It is a console software and you can play only by keyboard commands.
Runtime: