/usr/share/menu/gnuchess is in gnuchess 6.2.5-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | ?package(gnuchess):needs="text" section="Games/Board" \
hints="Chess" title="GnuChess" command="/usr/games/gnuchess"
|