diff --git a/fh.fd.ci.client/src/main/java/de/fd/fh/Figure.java b/fh.fd.ci.client/src/main/java/de/fd/fh/Figure.java
index d592c94..acb0778 100644
--- a/fh.fd.ci.client/src/main/java/de/fd/fh/Figure.java
+++ b/fh.fd.ci.client/src/main/java/de/fd/fh/Figure.java
@@ -16,6 +16,11 @@ public class Figure
             return false;
         }
 
+        if ((src - dst) / fieldLength > 0 && (src - dst) % fieldLength > 0) // diagonal nach links oben
+        {
+            return false;
+        }
+
         return true;
     }
 }
diff --git a/fh.fd.ci.client/src/test/java/de/fd/fh/FigureTest.java b/fh.fd.ci.client/src/test/java/de/fd/fh/FigureTest.java
index da24316..7320505 100644
--- a/fh.fd.ci.client/src/test/java/de/fd/fh/FigureTest.java
+++ b/fh.fd.ci.client/src/test/java/de/fd/fh/FigureTest.java
@@ -84,4 +84,11 @@ class FigureTest
         Figure f = new Figure();
         assertTrue(f.moveAllowed(Figure.fieldLength * 4 + 4, Figure.fieldLength * 7 + 4, new int[Figure.fieldLength * Figure.fieldLength]));
     }
+
+    @Test
+    void whiteRookInvalidMoveLeftUp() // diagonal nach links oben
+    {
+        Figure f = new Figure();
+        assertFalse(f.moveAllowed(Figure.fieldLength * 4 + 4, Figure.fieldLength * 3 + 3, new int[Figure.fieldLength * Figure.fieldLength]));
+    }
 }
\ No newline at end of file