[[Popeye (chess)|Popeye]] is probably the most widened chess problem solving software. ItselfBy itself, Popeye has no graphical interface, but it can be used in DOS, Windows, [[Linux]], [[MAC]] and many OS other since it comes with source code in [[C programming language]] which can be compiled. Popeye it is one of the best solving programs. It can solve problems with many fairy pieces and conditions, itand has alsocan output to [[LATEX]].
The original author of Popeye was Philippe Schnoebelen,; the first version was written in [[COMAL]] (around 1989). Later a group of people convertconverted and rewriterewrote the code to C and maintainnow are in charge of maintaining new versions,; the main contributors were [[Elmar Bartel]], [[Norbert Geissler]], [[Thomas Maeder]], [[Torsten Linss]], [[Stefan Hoening]], [[Stefan Brunzen]], [[Harald Denker]], [[Thomas Bark]] and [[Stephen Emmerson]].