diff --git a/WarmlyShip/WarmlyShip/DrawningObjectShip.cs b/WarmlyShip/WarmlyShip/DrawningObjectShip.cs
index 24e6ff5..80b06bb 100644
--- a/WarmlyShip/WarmlyShip/DrawningObjectShip.cs
+++ b/WarmlyShip/WarmlyShip/DrawningObjectShip.cs
@@ -41,5 +41,35 @@ namespace WarmlyShip
 
         public static IDrawningObject Create(string data) => new DrawningObjectShip(data.CreateDrawningShip());
 
+
+        public bool Equals(IDrawningObject? other)
+        {
+            if (other == null)
+            {
+                return false;
+            }
+            var otherShip = other as DrawningObjectShip;
+            if (otherShip == null)
+            {
+                return false;
+            }
+            var ship = _ship.Ship;
+            var otherShipShip = otherShip._ship.Ship;
+            if (ship.Speed != otherShipShip.Speed)
+            {
+                return false;
+            }
+            if (ship.Weight != otherShipShip.Weight)
+            {
+                return false;
+            }
+            if (ship.BodyColor != otherShipShip.BodyColor)
+            {
+                return false;
+            }
+            // TODO доделать проверки в случае продвинутого объекта
+            return true;
+
+        }
     }
 }
diff --git a/WarmlyShip/WarmlyShip/IDrawningObject.cs b/WarmlyShip/WarmlyShip/IDrawningObject.cs
index cbbd689..c7ea0dd 100644
--- a/WarmlyShip/WarmlyShip/IDrawningObject.cs
+++ b/WarmlyShip/WarmlyShip/IDrawningObject.cs
@@ -9,7 +9,7 @@ namespace WarmlyShip
     /// <summary>
     /// Интерфейс для работы с объектом, прорисовываемым на форме
     /// </summary>
-    internal interface IDrawningObject
+    internal interface IDrawningObject : IEquatable<IDrawningObject>
     {
         /// <summary>
 		/// Шаг перемещения объекта
diff --git a/WarmlyShip/WarmlyShip/MapWithSetWarmlyShipGeneric.cs b/WarmlyShip/WarmlyShip/MapWithSetWarmlyShipGeneric.cs
index 9a6e6b3..abf3dbb 100644
--- a/WarmlyShip/WarmlyShip/MapWithSetWarmlyShipGeneric.cs
+++ b/WarmlyShip/WarmlyShip/MapWithSetWarmlyShipGeneric.cs
@@ -12,7 +12,7 @@ namespace WarmlyShip
     /// <typeparam name="T"></typeparam>
     /// <typeparam name="U"></typeparam>
     internal class MapWithSetWarmlyShipGeneric<T, U>
-        where T : class, IDrawningObject
+        where T : class, IDrawningObject, IEnumerable<T>
         where U : AbstractMap
     {
         /// <summary>
diff --git a/WarmlyShip/WarmlyShip/SetWarmlyShipGeneric.cs b/WarmlyShip/WarmlyShip/SetWarmlyShipGeneric.cs
index 6bdff72..c5cfa3a 100644
--- a/WarmlyShip/WarmlyShip/SetWarmlyShipGeneric.cs
+++ b/WarmlyShip/WarmlyShip/SetWarmlyShipGeneric.cs
@@ -11,7 +11,7 @@ namespace WarmlyShip
     /// </summary>
     /// <typeparam name="T"></typeparam>
     internal class SetWarmlyShipGeneric<T>
-        where T : class
+        where T : class, IEnumerable<T>
     {
         /// <summary>
         /// Список объектов, которые храним
@@ -51,6 +51,8 @@ namespace WarmlyShip
         /// <returns></returns>
         public int Insert(T ship, int position)
         {
+            //TODO проверка на уникальность 
+
             if (Count >= _maxCount)
             {
                 throw new StorageOverflowException(Count);