
Description: XBoard is a popular open-source chess interface for playing and analyzing chess games. It supports chess engines for computer opponents and has features like game databases and analysis tools.
Type: Open Source Test Automation Framework
Founded: 2011
Primary Use: Mobile app testing automation
Supported Platforms: iOS, Android, Windows

Description: GameKnot is a free online chess server that allows players to play chess games, participate in tournaments, solve puzzles, and analyze games. It has a large community of chess players and features various playing levels from beginner to master.
Type: Cloud-based Test Automation Platform
Founded: 2015
Primary Use: Web, mobile, and API testing
Supported Platforms: Web, iOS, Android, API