Open Source Licenses

Monochess is built with and uses several amazing open source projects and resources. Below are the licenses and attributions for these materials.

Chessboard

The chessboard engine is based on cm-chessboard It's a minimal, configurable yet powerful chessboard.

SoftwareLicense
cm-chessboardMIT

Chess Piece Sets

The piece sets below were sourced from the Lichess project (lila).

To make them compatible with cm-chessboard, the individual SVG files for each piece in a set were merged into a single SVG sprite map. Each piece was wrapped in a <g> tag with a specific ID (like wk for white king) and adjusted to fit the standard 40x40 viewBox grid that the chessboard component expects.

Set NameAuthor(s)License
anarcandycaderekCC BY-NC-SA 4.0
calienteaviCC BY-NC-SA 4.0
californiaJerry S.CC BY-NC-SA 4.0
cardinalsadsnake1CC BY-NC-SA 4.0
cburnettColin M.L. BurnettGPLv2+
celticMaurizio MongeMIT
chessnutAlexis LuengasApache 2.0
dubrovnysadsnake1CC BY-NC-SA 4.0
fantasyMaurizio MongeMIT
frescasadsnake1CC BY-NC-SA 4.0
giocosadsnake1CC BY-NC-SA 4.0
icpiecessadsnake1CC BY-NC-SA 4.0
kiwen-suwineverRareCC BY 4.0
letterusolandoAGPLv3+
maestrosadsnake1CC BY-NC-SA 4.0
meridaArmando Hernandez MarroquinGPLv2+
mpchessMaxime ChupinGPL3v3+
pirouettipirouettiAGPLv3+
pixeltherealqtpiAGPLv3+
rhosgfxRhosGFXCC0 1.0
shapesflugsioCC BY-SA 4.0
spatialMaurizio MongeMIT
stauntysadsnake1CC BY-NC-SA 4.0
tatianasadsnake1CC BY-NC-SA 4.0
xkcdRandall MunroeCC BY-NC-SA 2.5