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Game · Puzzle, board & word games

KNights

KNights is a board game, available on Linux.

  • Completely free
  • Linux
  • Open source

At a glance

All of KNights is free: no feature is locked behind a paid plan, and its code is open.

Its licence (GPL-2.0+) is a copyleft open source licence: you may use, study, modify and redistribute it, including commercially; modified versions must keep the same licence.

Strengths

  • Open source code
  • Commercial use allowed

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

Description from Flathub — AppStream (Flathub)

Sources and checks

  • Facts collected from Flathub (credit card, publisher, licence, free status, platforms, commercial use, version) —
  • Last technical check: 6 November 2026
  • Description from Flathub — AppStream (Flathub)

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