شروط الاستخدام وميثاق اللعب النظيف Terms of Use & Fair Play Policy

By accessing or using ChessPlay (including playing bots, multiplayer matches, puzzle solver, or game analysis), you agree to be bound by these terms. If you do not agree to these terms, please discontinue using the platform.

ChessPlay is committed to fair play standards modeled after major international chess organizations:

• No External Engines: Running any external chess engines (Stockfish, Komodo, Leela, etc.) during games against real humans is strictly prohibited.
• No Outside Assistance: Consulting books, opening databases, or other players during live rated matches is not permitted.
• No Rating Manipulation: Intentionally losing games (sandbagging) or colluding with accounts to inflate ratings (boosting) is prohibited.
• No Stalling or Rage Quitting: Deliberately burning clock time rather than resigning in a lost position violates our sportsmanship code.

When interacting in multiplayer rooms and challenge chats:

• Maintain mutual respect and good sportsmanship (e.g. exchanging "gg" or congratulations post-game).
• Hate speech, profanity, harassment, and cyberbullying are strictly prohibited in game chats.
• Spamming or sending unsolicited links and promotional messages will result in an immediate mute or ban.

You can play as an anonymous Guest without registration. If you choose to authenticate via Google or Email:

• You are responsible for maintaining the security of your device and login credentials.
• You may only register accounts that represent yourself in good faith.
• The system reserves the right to clean up abandoned lobby cards and inactive temporary challenges.

ChessPlay is proud to build upon the open-source Stockfish chess engine (versions 10, 18 Lite, and 19 Lite), distributed under the GNU General Public License v3 (GPLv3):

• Stockfish is authored and maintained by the global Stockfish open-source community.
• The engine runs locally inside users' browsers through pre-compiled WebAssembly binaries.
• Our platform champions free software and community-accessible chess technology.

With the exception of open-source chess engines and third-party libraries, the overall application design, user interfaces, branding, approved ChessPlay logo, visual theme tokens, and evaluation portfolio algorithms are the intellectual property of the developer.

The ChessPlay service, engines, and features are provided "AS IS" without warranty of any kind, free of charge:

• We do not guarantee uninterrupted uptime or continuous third-party API availability.
• The platform is not liable for local data loss resulting from browser cache purges or device resets.

We may update these terms periodically to reflect new features or regulatory standards. Updates take effect immediately upon posting to this page with an updated effective date.