tracks/csharp/config.json in trackler-2.0.6.19 vs tracks/csharp/config.json in trackler-2.0.6.20

@@ -830,9 +830,17 @@
         "Parsing",
         "Dictionaries"
       ]
     },
     {
+      "slug": "forth",
+      "difficulty": 10,
+      "topics": [
+        "Parsing",
+        "Stacks"
+      ]
+    },
+    {
       "slug": "pov",
       "difficulty": 10,
       "topics": [
         "Graphs",
         "Recursion",