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 9e6444e..87f0b1a 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
@@ -21,6 +21,11 @@ public class Figure
             return false;
         }
 
+        if (src / 8 - dst / 8 > 0 && src % 8 - dst % 8 < 0) // diagonal nach rechts 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 901564e..b21b68b 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
@@ -55,4 +55,11 @@ class FigureTest
         Figure f = new Figure();
         assertFalse(f.moveAllowed(Figure.fieldLength * 4 + 4, Figure.fieldLength * 3 + 3, new int[Figure.fieldLength * Figure.fieldLength]));
     }
+
+    @Test
+    void whiteRookInvalidMoveRightUp() // diagonal nach rechts oben
+    {
+        Figure f = new Figure();
+        assertFalse(f.moveAllowed(36, 29, new int[8 * 8]));
+    }
 }
\ No newline at end of file