About & credits

Last updated: October 25, 2026

KingClegg Chess is a set of chess training drills, from calculation and board vision to memory and tactics, created and run by KingClegg Technologies. Strategy. Precision. Mastery.

The drills, their rules and scoring, the software, the design and the original artwork are our own work: © 2026 KingClegg Technologies. All rights reserved. KingClegg is a trademark of KingClegg Technologies. Please see the Terms of Use for what you may and may not do with them.

Current version: Version 0.9 beta. Questions, bug reports and ideas: [email protected].

Our own artwork

The KingClegg, Regent and Onyx piece sets, the logo, the crown and the page artwork were created for this site and are not available for reuse.

Credits for third-party artwork

The other chess piece sets are used under their authors’ open licences. We thank their creators.

• Classic: Colin M.L. Burnett, BSD 3-clause licence
• Chessnut: Alexis Luengas, Apache License 2.0
• Spatial, Fantasy, Celtic: Maurizio Monge, MIT licence
• Papercut: Nikolay Anzarov, CC BY 4.0
• Firi: James Faure, CC BY 4.0
• Totoy: Kosal Sen, CC BY 4.0
• Kiwen-suwi: neverRare, CC BY 4.0
• RhosGFX: RhosGFX, CC0 1.0
• Shapes: flugsio, CC BY-SA 4.0

Full licence texts: assets/pieces/LICENSES.txt. The sets were obtained from the open-source Lichess project. Page fonts (Cormorant Garamond, Cinzel, Schibsted Grotesk) are open-licence Google Fonts.

The classics

Chess itself, and old puzzles such as Guarini’s knights puzzle of 1512 and the Eight Queens problem, are part of everyone’s heritage. Our versions, scoring and presentation of them are ours.