Program.cs

using ChessMazeApp.Interfaces;
using ChessMazeApp.Models;

var designer = new LevelDesigner();

ILevel level = designer.CreateLevel(5, 5);
Console.WriteLine($"Created {level.Name}");

var knight = new Piece(PieceType.Knight, new Position(0, 0));
designer.PlacePiece(knight, new Position(0, 0));
Console.WriteLine($"Placed {knight}");

designer.UndoLastAction();
Console.WriteLine("Undo last action -> Knight removed");

designer.SetStartPosition(new Position(0, 0));
designer.SetEndPosition(new Position(4, 4));
Console.WriteLine("Start and End positions set");

if (designer.ValidateLevel(out var error))
    Console.WriteLine("Level is valid");
else
    Console.WriteLine($"Level invalid: {error}");