Name: KNights
Author: KDE

About

KNights is a chess game. As a player, your goal is to defeat your opponent by checkmating their king.

Features:

Local play between two players on the same computer
Play against any computer program that supports the XBoard protocol
Play on the Free Internet Chess Server (FICS)
Watching two computer engines play against each other
Support for legal move checking
Markers for possible moves, opponent’s last move and sources of check
Board borders and site notations
Complete time control, with Plasma-styled clocks
Several themes, with the possibility of downloading new ones from within the program
Animated moves (configurable)
Views for playing on a chess server, including a seek graph, text console, and chat widget
Option to undo and redo moves
Graphic interface for making and receiving offers from remote players
Support for the UCI protocol (used by Stockfish, Chessbase, and many others)
Support for saving and loading Portable game notation (PGN) files
Speak opponent’s moves
Ability to control the program via a D-Bus interface

Permissions

Everything this app can reach outside its sandbox. Nothing here weakens it.

inter-process communication (needed for X11)

--share=ipc

network

--share=network

X11 display, only when Wayland is unavailable

--socket=fallback-x11

audio

--socket=pulseaudio

Wayland display

--socket=wayland

GPU acceleration

--device=dri

access to xdg-config/kdeglobals

--filesystem=xdg-config/kdeglobals:ro

talks to com.canonical.AppMenu.Registrar

--talk-name=com.canonical.AppMenu.Registrar

talks to org.kde.kconfig.notify

--talk-name=org.kde.kconfig.notify

talks to org.kde.KGlobalSettings

--talk-name=org.kde.KGlobalSettings

KNights