Chessground is a chessboard package developed for lichess.org. It doesn't handle chess logic so you can use it with different chess variants.
- pieces animations: moving and fading away
- board highlights: last move, piece destinations
- move piece by tap or drag and drop
- displays a shadow under dragged piece to indicate the drop square target
- board themes
- promotion selector
This package exports a Board widget which can be interactable or not. It is
entirely configurable with a Settings object.
This will display a board with the starting position, using the default theme:
import 'package:flutter/material.dart';
import 'package:chessground/chessground.dart' as cg;
class MyHomePage extends StatefulWidget {
const MyHomePage({Key? key, required this.title}) : super(key: key);
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
String fen = 'rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR';
@override
Widget build(BuildContext context) {
final double screenWidth = MediaQuery.of(context).size.width;
return Scaffold(
appBar: AppBar(
title: const Text('Chessground demo'),
),
body: Center(
child: cg.Board(
size: screenWidth,
orientation: cg.Color.white,
fen: fen,
),
),
);
}
}See the example app for an interactable version against a random bot.