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Game · Puzzle, board & word games

Sugar Chess

Sugar Chess is a board game, available on Linux.

  • Completely free
  • Linux
  • Open source

At a glance

Sugar Chess is completely free: it is open source software, and every feature is available without paying or subscribing.

Its licence (GPL-3.0+) 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

Sugar Chess is a front end to the gnuchess program. It features varying levels of difficulty, undo, PGN output, customization of graphics, et al.

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: 8 November 2026
  • Description from Flathub — AppStream (Flathub)

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