diff --git a/Exercises/E26_Mehrdimensionale_Arrays/Exercise_4.cs b/Exercises/E26_Mehrdimensionale_Arrays/Exercise_4.cs
index 1d3f80a..6015248 100644
--- a/Exercises/E26_Mehrdimensionale_Arrays/Exercise_4.cs
+++ b/Exercises/E26_Mehrdimensionale_Arrays/Exercise_4.cs
@@ -21,7 +21,13 @@ namespace Exercises_C_Sharp.E26_Mehrdimensionale_Arrays
         static int[,] ReverseArray(int[,] arr)
         {
             //Code START
-            return new int[0,0];
+            int[,] tempArr = new int[arr.GetLength(1), arr.GetLength(0)];
+
+            for (int i = 0; i < arr.GetLength(0); i++)
+                for (int j = 0; j < arr.GetLength(1); j++)
+                    tempArr[j, i] = arr[i, j];
+
+            return tempArr;
             //Code ENDE
         }
 
@@ -29,7 +35,14 @@ namespace Exercises_C_Sharp.E26_Mehrdimensionale_Arrays
         static void ShowArray(int[,] arr)
         {
             //Code START
-            
+            for (int i = 0; i < arr.GetLength(0); i++)
+            {
+                for (int j = 0; j < arr.GetLength(1); j++)
+                    Console.Write(arr[i, j] + "\t");
+
+                Console.WriteLine();
+            }
+            Console.WriteLine("----------------");
             //Code ENDE
         }
 
diff --git a/Exercises/E26_Mehrdimensionale_Arrays/Exercise_5.cs b/Exercises/E26_Mehrdimensionale_Arrays/Exercise_5.cs
index 2990d99..32546da 100644
--- a/Exercises/E26_Mehrdimensionale_Arrays/Exercise_5.cs
+++ b/Exercises/E26_Mehrdimensionale_Arrays/Exercise_5.cs
@@ -25,7 +25,12 @@ namespace Exercises_C_Sharp.E26_Mehrdimensionale_Arrays
         static int[,] RemoveEven(int[,] arr)
         {
             //Code START
-            return new int[0,0];
+            for (int i = 0; i < arr.GetLength(0); i++)
+                for (int j = 0; j < arr.GetLength(1); j++)
+                    if (arr[i, j] % 2 == 0)
+                        arr[i, j] = -1;
+
+            return arr;
             //Code ENDE
         }
 
@@ -33,7 +38,12 @@ namespace Exercises_C_Sharp.E26_Mehrdimensionale_Arrays
         static int[,] RemoveOdd(int[,] arr)
         {
             //Code START
-            return new int[0,0];
+            for (int i = 0; i < arr.GetLength(0); i++)
+                for (int j = 0; j < arr.GetLength(1); j++)
+                    if (arr[i, j] % 2 != 0)
+                        arr[i, j] = -1;
+
+            return arr;
             //Code ENDE
         }
     }
diff --git a/Exercises/E26_Mehrdimensionale_Arrays/Exercise_6.cs b/Exercises/E26_Mehrdimensionale_Arrays/Exercise_6.cs
index 549d9f3..afe34f0 100644
--- a/Exercises/E26_Mehrdimensionale_Arrays/Exercise_6.cs
+++ b/Exercises/E26_Mehrdimensionale_Arrays/Exercise_6.cs
@@ -13,12 +13,14 @@ namespace Exercises_C_Sharp.E26_Mehrdimensionale_Arrays
             //Lassen Sie den Nutzer das zweidimensionale Array 'stringArray' mit (9, jeweils eine pro Feld) Eingaben befüllen
 
             //Code START
-
+            for (int i = 0; i < stringArray.GetLength(0); i++)
+                for (int j = 0; j < stringArray.GetLength(1); j++)
+                    stringArray[i, j] = Console.ReadLine() ?? "";
             //Code ENDE
 
-            //Überprüfung:
-            foreach(var element in stringArray)
-                Console.Write(element + " - ");
+                    //Überprüfung:
+                    foreach (var element in stringArray)
+                        Console.Write(element + " - ");
         }
 
     }
diff --git a/lastPoint b/lastPoint
index aca7d35..e44d3bf 100644
--- a/lastPoint
+++ b/lastPoint
@@ -1,2 +1,2 @@
-2
+3
 25