diff --git a/AirplaneWithRadar/AirplaneWithRadar/AbstractMap.cs b/AirplaneWithRadar/AirplaneWithRadar/AbstractMap.cs
index 8fbbabd..d5669b8 100644
--- a/AirplaneWithRadar/AirplaneWithRadar/AbstractMap.cs
+++ b/AirplaneWithRadar/AirplaneWithRadar/AbstractMap.cs
@@ -7,7 +7,7 @@ using System.Threading.Tasks;
 
 namespace AirplaneWithRadar
 {
-    internal abstract class AbstractMap
+    internal abstract class AbstractMap : IEquatable<AbstractMap>
     {
         private IDrawningObject _drawningObject = null;
         protected int[,] _map = null;
@@ -117,5 +117,32 @@ namespace AirplaneWithRadar
         protected abstract void GenerateMap();
         protected abstract void DrawRoadPart(Graphics g, int i, int j);
         protected abstract void DrawBarrierPart(Graphics g, int i, int j);
+
+        public bool Equals(AbstractMap? other)
+        {
+            if (other == null ||
+                _map != other._map ||
+                _width != other._width ||
+                _size_x != other._size_x ||
+                _size_y != other._size_y ||
+                _height != other._height ||
+                GetType() != other.GetType() ||
+                _map.GetLength(0) != other._map.GetLength(0) ||
+                _map.GetLength(1) != other._map.GetLength(1))
+            {
+                return false;
+            }
+            for (int i = 0; i < _map.GetLength(0); i++)
+            {
+                for (int j = 0; j < _map.GetLength(1); j++)
+                {
+                    if (_map[i, j] != other._map[i, j])
+                    {
+                        return false;
+                    }
+                }
+            }
+            return true;
+        }
     }
 }
\ No newline at end of file