protected ChessPiece(char x, int y, ChessColor color, PictureBox piece)
{
Position = new ChessPosition(x, y);
Color = color;
Piece = piece;
}
public abstract bool checkValidMove(ChessPosition position, List <ChessPiece> white, List <ChessPiece> black, Dictionary <char, Dictionary <int, positionInfo> > piecePositions);