This is the simple chess app create by using flutter and dart.
Here,i have used library for moves and for the maintenances of game state.
chess.dart is a library for legal chess move generation, maintenance of chess game state, and conversion to and from the formats FEN and PGN. https://pub.dev/packages/chess
For chess board , i have used Chessboard Widget . This package provides just the chessboard. The game logic have implemented using chess library which is maintion above.