diff --git a/BlazorSolution/MiniGames/Shared/Models/TicTacToeBrett.cs b/BlazorSolution/MiniGames/Shared/Models/TicTacToeBrett.cs
index e0dfb2b..811c25b 100644
--- a/BlazorSolution/MiniGames/Shared/Models/TicTacToeBrett.cs
+++ b/BlazorSolution/MiniGames/Shared/Models/TicTacToeBrett.cs
@@ -60,5 +60,10 @@ namespace MiniGames.Shared.Models
 
             return true;
         }
+
+        public bool Voll()
+        {
+            return false;
+        }
     }
 }
diff --git a/BlazorSolution/MiniGamesTests/TicTacToeBrettTest.cs b/BlazorSolution/MiniGamesTests/TicTacToeBrettTest.cs
index f767525..c688c91 100644
--- a/BlazorSolution/MiniGamesTests/TicTacToeBrettTest.cs
+++ b/BlazorSolution/MiniGamesTests/TicTacToeBrettTest.cs
@@ -135,5 +135,19 @@ namespace MiniGamesTests
             // assert
             Assert.Equal(erwartetGleich, erhaltenGleich);
         }
+
+        [Fact]
+        public void Voll_LeeresBrettTest()
+        {
+            // arrange
+            TicTacToeBrett brett = TestBrett();
+            bool erwartetVoll = false;
+
+            // act
+            bool erhaltenVoll = brett.Voll();
+
+            // assert
+            Assert.Equal(erwartetVoll, erhaltenVoll);
+        }
     }
 }