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entries/gnu_chess.md

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+# GNU Chess
+
+_Chess game._
+
+- Home: https://www.gnu.org/software/chess/, http://savannah.gnu.org/projects/chess/
+- Media: https://en.wikipedia.org/wiki/GNU_Chess
+- State: mature, inactive since 2017
+- Download: http://ftpmirror.gnu.org/chess/
+- Platform: Windows, Linux, macOS
+- Keywords: strategy, chess, game engine, open content
+- Code repository: http://svn.savannah.gnu.org/svn/chess (svn), http://cvs.savannah.gnu.org:/sources/chess (cvs)
+- Code language: C++
+- Code license: GPL-3.0
+- Assets license: None
+
+Can be used together with a graphical frontend such as XBoard.
+Windows binaries via https://sourceforge.net/projects/gnuwin32/
+
+Developer: Chua Kong Sian, Stuart Cracraft, Lukas Geyer, Simon Waters
+
+## Building
+
+- Build system: Autoconf