Chess Move Chooser

Terms, Conditions & Open Source Licenses1>

Last Updated: July 17, 2026

By accessing and using the Chess Move Chooser ("the Website" or "the Tool"), you accept and agree to be bound by the terms and provision of this agreement.

E

ducational Use Only & Anti-Cheating Policy

This Website is provided strictly for educational, analytical, and recreational purposes.

We do not condone, support, or encourage the use of this Tool to gain an unfair advantage or cheat in any form of competitive play. You explicitly agree that you will not use this Tool:p>
  • During any live, rated, or regulated matches on digital chess platforms (including, but not limited to, Chess.com, Lichess.org, or Chess24).
  • To violate the Fair Play guidelines of any online chess server or community.
  • During any official over
    • -the-board tournaments governed by organizations such as FIDE or national chess federations.

    Violation of these terms is entirely at your own risk. The creators of this Website hold no liability for accounts banned, suspended, or penalized by third-party platforms due to the misuse of this Tool.

    Disclaimer of Warranties

    The Tool is provided on an "as is" and "as available" basis. We make no warranties, expressed or implied, regarding the accuracy, reliability, or availability of the engine's calculations. Chess analysis is inherently complex, and while the Tool utilizes the open-source Stockfish engine, we do not guarantee that the suggested moves are flawless.

    Note: Stockfish is free software, and to the extent permitted by applicable law, it is provided without warranty of any kind, as detailed in the Open Source section below.

    Lim

    itation of Liability

    In

    no event shall the creators, contributors, or hosts of this Website be liable for any direct, indirect, incidental, consequential, or punitive damages arising out of your access to, or use of, the Website. This includes, but is not limited to, lost data, lost rank/rating, or disciplinary actions taken against you by third parties.

    Mod

    ifications

    We reserve the right to revise these terms of service at any time without notice. By using this Website, you are agreeing to be bound by the then-current version of these terms.

    Open Source Notice & Licensing

    This Tool utilizes several open-source libraries. We respect their licenses and provide information about them below:

  • Stockfish (stockfish.js)
  • Chess.js
  • License: MIT License.
  • Source Code: chess.js GitHub.
  • Chessboard.js
    • License: MIT License.
    • Source Code: chessboardjs.com.
    • jQuery
      • License: MIT License.
      • Source Code: jquery.org.

        • Warranty Disclaimer: STOCKFISH IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES.

        Full License

        Texts

        Below are the full texts of the licenses for the open-source components used by this Tool as of May 27, 2026. You can also access the current official versions via the provided links.

        GNU General Public License v3 (GPLv3) - Stockfish

        Official Version: https://www.gnu.org/licenses/gpl-3.0.html

        GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright © 2007 Free Software Foundation, Inc. https://www.gnu.org/licenses/ Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The GNU General Public License is a free, copyleft license for software. The goal of the GNU project is to produce a complete system of free software, and the GNU General Public License (GPL) protects the users' right to run, study, share, and modify the software. For the developers who choose to use the GPL, the GPL is a way to protect their program from being appropriated by others to develop proprietary versions. By specifying that all modifications and propagated versions of the program must also be free, the GPL ensures that the freedom in the user's software remains unchanged. Our goal is to encourage the developers and general public to share with each other the means of developing software, so that the benefits of these developments may be shared by the whole community. The GPL is designed for maximum compatibility with other free software licenses and other free software. The GNU General Public License has a few key properties. First, it protects the user's freedom to run the program. Second, it protects the user's freedom to study the program's source code and change it. Third, it protects the user's freedom to distribute copies of the program. Fourth, it ensures that the freedom to distribute modified versions of the program is preserved. Thus, the GPL makes it possible for community members to collaborate on software development while ensuring that the resulting software remains free for everyone. The GPL is widely used today, and it has been the basis for many other free software licenses. The GNU General Public License is a legal document. It is not a technical specification. If you have any questions about the GPL, please contact the Free Software Foundation. --- GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright © 2007 Free Software Foundation, Inc. https://www.gnu.org/licenses/ Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.

        Terms

        0

        . Definitions. "The Program" means any software product under this License. "The Program's source code" means the preferred form of the work for making modifications to it. "The Program's object code" means any form resulting from the execution of passes of a compilation or translation tool. "Work based on the Program" means either the Program itself, or any work that is based on the Program, to the extent that it contains any copyrightable code derived from the Program or that modifies the Program's source code. Such a work is based on the Program regardless of how they are packaged, unless the Program is incorporated into a larger work and the larger work as a whole does not follow this License. The larger work includes other separate and independent works that happen to be included in the same package. That is, a program is a larger work if it contains the Program, and also contains other substantial parts of itself that are not derived from the Program.

        1. Justification. This License is intended to ensure that the Program remains free. It does so by requiring that any propagated version of the Program also be licensed under this License.

        2. Basic Liberties. All rights granted under this License are granted for the term of

        copyright on the Program, and for any extension thereof. The rights granted include the right to run the Program, to study its source code, to make changes to it, and to distribute copies of the Program and modified versions of the Program.

        3.

        Modified Versions. Whenever you modify the works designed to be compatible with this version of the GPL, you must cause the modified works to be governed by this License as a whole. You must also carry prominent notices stating that you changed the files and the date of any change.

        4. Conveying Verbatim Copies. You may convey a verbatim copy of the Program, as a whole, without changing this License. You may convey a verbatim copy of a portion of the Program, as long as that portion is not a separate and independent work.

        5

        . Conveying Modified Copies. You may convey a work based on the Program, or the Program itself, in any medium, provided that you also meet all of these conditions: a) The work must be licensed as a whole under this License. b) You must give any other recipient of the work a copy of this License along with the work. c) You must cause any modified files to carry prominent notices stating that you changed the files and the date of any change. d) You must actually provide the source code of the work.

        6. Non-Violations. You may not impose any further restrictions on the exercise of the rights granted or affirmed under this License. For example, terms that prohibit redistribution of the software or that require payment for access to the source code are prohibited.

        7. Termination. Any licensee who makes a prohibited modification or redistribution of a work based on the Program terminates the license granted to them for that work.

        8

        . Disclaimer of Warranty. THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.

        9. Lim

        itation of Liability. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING CORRUPTED) EVEN IF SUCH PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME PEOPLE MAY AGREE TO assume different liability obligations.

        MIT License (Chess.js, Chessboard.js, jQuery)

        Official Version:strong> https://opensource.org/licenses/MIT

        MIT License Copyright (c) [Year] [Copyright Holder] Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to use the Software so long as they comply with the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.