This file is indexed.

/usr/share/doc-base/xboard-engine is in xboard 4.8.0-2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
Document: xboard-engine
Title: Chess Engine Communication Protocol
Author: Tim Mann & H.G.Muller
Abstract: This document is a set of rough notes on the protocol that xboard and
 WinBoard use to communicate with gnuchessx and other chess engines.
Section: Games/Board

Format: HTML
Index: /usr/share/doc/xboard/engine-intf.html
Files: /usr/share/doc/xboard/engine-intf.html