ChessHair Puzzle Review is built on the work of many open source projects and creators. If you believe your work is used here without proper attribution, please contact us at contact@chess.hair.
Puzzles
Puzzles come from the Lichess puzzle database, released under CC0.
Analysis
Engine analysis runs on ChessHair, which uses Stockfish and Fairy-Stockfish.
Board UI
- Chessground, the interactive board widget, by the Lichess authors. GPLv3+.
- chess.js, chess move generation and validation, by Jeff Hlywa. BSD-2-Clause.
Board images
The board background images are sourced from the Lichess (lila) project, by the lila authors and pirouetti. AGPLv3+.
Piece sets
Piece images are shipped with the ChessHair board. We offer the following sets:
| Set | Author | License | Source |
|---|---|---|---|
cburnett |
Colin M.L. Burnett | GPLv2+ | source |
celtic |
Maurizio Monge | MIT | source |
chessnut |
Alexis Luengas | Apache 2.0 | source |
eyes |
Maurizio Monge | MIT | source |
fantasy |
Maurizio Monge | MIT | source |
firi |
James Faure | CC BY 4.0 | source |
freak |
Maurizio Monge | MIT | source |
kiwen-suwi |
neverRare | CC BY 4.0 | source |
kosal |
philatype | CC BY 4.0 | source |
letter |
usolando | AGPLv3+ | source |
merida |
Armando Hernandez Marroquin | GPLv2+ | source |
mpchess |
Maxime Chupin | GPLv3+ | source |
papercut |
Nikolay Anzarov | CC BY 4.0 | source |
pirouetti |
pirouetti | AGPLv3+ | source |
pixel |
therealqtpi | AGPLv3+ | source |
prmi |
Maurizio Monge | MIT | source |
rhosgfx |
RhosGFX | CC0 1.0 | source |
shapes |
flugsio | CC BY-SA 4.0 | source |
skulls |
Maurizio Monge | MIT | source |
spatial |
Maurizio Monge | MIT | source |
totoy |
Kosal Sen | CC BY 4.0 | source |
Lichess
Puzzle Review signs in with Lichess and imports your Lichess puzzle history. It is an independent project and is not affiliated with or endorsed by Lichess.