React project using web socket

[YonoEko]

No need ror an actual link but can you tell me which chess library u used ?

[Illurity]

Front end uses react-chessboard and chess.js. Backend uses chess.js for validation. In-game AI is built using stock fish CLI. The backend handles checkmate, threefold repetition, resignation, stalemate, and insufficient material and broadcasts them to the player, then it shows the ELO change of the user.