diff --git a/Catamaran/AbstractMap.cs b/Catamaran/AbstractMap.cs
index a6c19cb..0137b3a 100644
--- a/Catamaran/AbstractMap.cs
+++ b/Catamaran/AbstractMap.cs
@@ -7,7 +7,7 @@ using System.Threading.Tasks;
 
 namespace Catamaran
 {
-    internal abstract class AbstractMap
+    internal abstract class AbstractMap : IEquatable<AbstractMap>
     {
         private IDrawingObject _drawingObject = null;
         protected int[,] _map = null;
@@ -160,5 +160,31 @@ namespace Catamaran
         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)
+            {
+                return false;
+            }
+            var thisMap = this;
+            var otherMap = other;
+
+            if (thisMap._width != otherMap._width) return false;
+            if (thisMap._height != otherMap._height) return false;
+            if (thisMap._size_x != otherMap._size_x) return false;
+            if (thisMap._size_y != otherMap._size_y) return false;
+            if (thisMap._map.GetLength(0) != otherMap._map.GetLength(0) || thisMap._map.GetLength(1) != otherMap._map.GetLength(1)) return false;
+            for (int i = 0; i < thisMap._map.GetLength(0); i++)
+            {
+                for (int j = 0; j < thisMap._map.GetLength(1); j++)
+                {
+                    if (thisMap._map[i, j] != otherMap._map[i, j]) return false;
+                }
+            }
+            return true;
+        }
+
     }
 }
diff --git a/Catamaran/MapWithSetBoatsGeneric.cs b/Catamaran/MapWithSetBoatsGeneric.cs
index 82f10e8..116b901 100644
--- a/Catamaran/MapWithSetBoatsGeneric.cs
+++ b/Catamaran/MapWithSetBoatsGeneric.cs
@@ -13,7 +13,7 @@ namespace Catamaran
     /// <typeparam name="T"></typeparam>
     /// <typeparam name="U"></typeparam>
     internal class MapWithSetBoatsGeneric<T, U>
-        where T : class, IDrawingObject
+        where T : class, IDrawingObject, IEquatable<T>
         where U : AbstractMap
     {
         /// <summary>
@@ -214,7 +214,7 @@ namespace Catamaran
         /// <param name="comparer"></param>
         public void Sort(IComparer<T> comparer)
         {
-            _setCars.SortSet(comparer);
+            _setBoats.SortSet(comparer);
         }
     }
 }
diff --git a/Catamaran/SetBoatsGeneric.cs b/Catamaran/SetBoatsGeneric.cs
index 500620d..13a77f6 100644
--- a/Catamaran/SetBoatsGeneric.cs
+++ b/Catamaran/SetBoatsGeneric.cs
@@ -39,9 +39,17 @@ namespace Catamaran
         /// <returns></returns>
         public int Insert(T boat)
         {
+            if (_places.Contains(boat)) return -1 ;
+                for (int i = 0; i < _maxCount; i++)
+            {
+                if (i == Count)
+                {
+                    _places.Insert(i, boat);
+                    return i;
+                }
+            }
+            throw new StorageOverflowException(_maxCount);
 
-            return Insert(boat, 0);
-            
         }
         /// <summary>
         /// Добавление объекта в набор на конкретную позицию
@@ -52,7 +60,7 @@ namespace Catamaran
         public int Insert(T boat, int position)
         {
             // TODO проверка на уникальность
-
+            
             // проверка позиции
             if (position < 0 || position >= _maxCount)
             {