using System;

#nullable enable

​

static class MainClass

{

    static ChessBoard currentBoard = new();

    static void Main(string[] args)

    {

        currentBoard.PrintBoard();

    }

}

public class ChessBoard

{

    string[] boardStructure = 

    {

        "* | ",

        "----"

    };

    ChessPiece?[,] boardData = new ChessPiece?[8,8];

    public ChessBoard()

    {

    }

    public string GetBoard()

    {

        string output = "";

        // Prints Vertically

        for (int i = 0; i < 8; i++)

        {

            string line = "";

            // Prints Horizontally

            for (int b = 0; b < 8; i++)

            {

                string piece = boardStructure[0];

                piece = piece.Replace('*', boardData[i,b]?.logo ?? ' ');

                if (b == 7) piece.Replace(" | ", "");

                line += piece;

            }

            output += $"\n{line}";

            // Adds line separators horizontally, stops at end

            if (i < 7) for (int b = 0; b < 8; i++) output += boardStructure[1];

            output += "\n";

        }

        return output;

    }

    public void PrintBoard() => Console.WriteLine(GetBoard());

}

public class ChessPiece 

{

    public char logo = '?';

}