Who should use ChessX?

ChessX is an open-source project built for chess players and enthusiasts.

Is ChessX still active?

Unverified. ChessX has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What projects are similar to ChessX?

Similar projects tracked by PulseGate include CoreChess, Sugar Chess, and Chessmax.

ChessX is developed by Jens Nissen.

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ChessX

Name: ChessX
Author: Jens Nissen

FlathubGames

ChessX is an open source chess database application that allows users to load, browse, edit, organize, and analyze collections of chess games. It supports PGN files, multiple databases, variations, comments, training modes against engines, board setup with FEN, opening tree display, and play on FICS. It is designed for chess players and enthusiasts who need a comprehensive tool for game management and analysis on desktop Linux.

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Overview

7 features

ChessX sits in PulseGate's Games category. Managing, analyzing, and studying collections of chess games without a dedicated open-source tool. It is built as an open-source project for chess players and enthusiasts. It is available for free. ChessX is available on Linux.

It is developed by Jens Nissen. Key capabilities include PGN Support, Multiple Databases, and Game Browser.

PGN Support
Multiple Databases
Game Browser
Training Mode
Engine Analysis
Opening Tree
FICS Integration

Built with & integrations

Runs on

Linux

Trust & compliance

Verified signals

HTTPSFree tier

Indexing history

What PulseGate has recorded for this listing

Indexed24 Jul · 13:06 UTC
Chessx verified against its public source
Source: PulseGate · Open

Frequently asked questions about ChessX

What is ChessX?: Managing, analyzing, and studying collections of chess games without a dedicated open-source tool. It is catalogued under Games on PulseGate.
Who should use ChessX?: ChessX is an open-source project built for chess players and enthusiasts.
Is ChessX free?: Yes — ChessX is free to use.
What platforms does ChessX run on?: ChessX runs on Linux.
Is ChessX still active?: Unverified. ChessX has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What projects are similar to ChessX?: Similar projects tracked by PulseGate include CoreChess, Sugar Chess, and Chessmax.CoreChess Sugar Chess Chessmax
Who makes ChessX?: ChessX is developed by Jens Nissen.

At a glance

Platforms: Desktop
Languages: English
First seen: 24 Jul 2026
Built for: chess players and enthusiasts
Model: Open source
Solves: Managing, analyzing, and studying collections of chess games without a dedicated open-source tool.

Registered as

Flathub: net.sourceforge.Chessx

Developer

Jens Nissen

Live coverage

Identity confidence: Medium · 70
Indexed: 24 Jul 2026
Lifecycle: Alive
First seen: Jul 2026
Last seen: 24 Jul 2026

Identity audit (13)

Slug: chessx-flathub-org
Lifecycle state recorded: 24 Jul 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 24 Jul 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Written by a language model from the project's public pages.
Category from: Assigned by a language model.
Summary from: Taken from the project's own store listing.
Languages from: Detected by a language model from page content.
Last updated: 5 Aug 2026
Canonical URL: https://flathub.org/apps/net.sourceforge.Chessx

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