Chess Proprietary License Notice
Effective: October 20, 2026

Copyright (c) 2026 Chess contributors. All rights reserved.

Original Chess code, scripts, models, materials, artwork, icons, synthesized
sounds, interface text, documentation and original adaptations are proprietary
to the extent they are not already subject to a valid prior license. This
notice governs new original contributions first distributed under this notice.
No permission is granted to redistribute, sublicense or sell that proprietary
material, or to use it to produce derivative software, without written consent,
except as permitted by applicable law or another applicable license.

You may install and use copies of Chess obtained through authorized channels
under the applicable Terms of Use and store terms. You may save and share the
game images and clips produced by the app's export features for your personal
use. Paid access grants the described app features, not ownership of its code,
artwork or other protected material. Statutory consumer rights are unaffected.

Prior grants remain effective
This change does not revoke, withdraw or narrow rights validly granted under
Chess's earlier MIT license. Copies and portions previously distributed under
that license remain usable under its terms. The earlier notice is preserved
in legal/CHESS_LEGACY_MIT.txt and in Git history; this notice does not claim
exclusive control over material that is already available under that license.

Third-party material
Godot, godot-cpp, plugins, fonts and other third-party components retain their
own licenses and notices in legal/. Official Lichess puzzle source data remains
CC0 1.0. Original Chess selection, presentation, adaptations and new tools do
not restrict reuse of that underlying CC0 data. Third-party license permissions
and applicable law take precedence for the material to which they apply.

Contact: joseph.petzval@gmail.com