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chessepolis

Legal notice

Provider identification, responsibility, picture credits and licences.

This translation is for information only; the German version is binding.

Information according to § 5 DDG

Farhad Karimi
Worringer Straße 5
50668, Köln
Germany

Contact

Email: info@chesstoteles.com

Responsible for the content according to § 18 (2) MStV

Farhad Karimi
Address as above

Liability for content

The content of these pages was created with care. However, no guarantee can be given for the correctness, completeness and timeliness of the content – such as the game data, move sequences and evaluations. As a service provider I am responsible for my own content on these pages under the general laws.

Liability for links

These pages occasionally contain links to external websites of third parties on whose content I have no influence. The respective provider or operator is always responsible for this third-party content. At the time of linking no legal violations were recognizable; if they become known, such links will be removed immediately.

Copyright

The texts and the design of these pages are subject to German copyright law. For pictures, chess pieces, game data and the chess engine the origins and licences named under picture credits and licences apply.

Picture credits and licences

Pictures

The picture on the home page (“Chess Duel at Persepolis”), the logo and the favicon are generated with artificial intelligence. They are artistic depictions, not historical portraits.

Chess pieces

The pieces on the chessboards are the piece set “cburnett” by Colin M. L. Burnett, as also used on lichess. They are under the GNU General Public License, version 2 or later, and are used unchanged.

Licence text: GPL-2.0.txt

Game data

Most of the games come from the data source “Chess Database” by Ana Schaigorodsky (2016), published on Figshare: Figshare Chess Database. It is under the licence Creative Commons Attribution 4.0 International (CC BY 4.0). The game Légal – Saint Brie (Paris 1750) has come down to us in the public domain.

The data were modified for our own use: single famous games were selected and given titles, explanations and hints; the 22 positions of the combinations and mating patterns are made from them. The basic forms of the mating patterns are positions of our own.

Chess engine

The site delivers the chess engine Stockfish in the version stockfish.js 19 (Stockfish 19 lite, WebAssembly). It is under the GNU General Public License, version 3, is delivered unchanged and, when used, runs entirely in the visitors' browser; no data is transmitted.

Licence text: COPYING.txt · Source code: github.com/nmrugg/stockfish.js, github.com/official-stockfish/Stockfish