diff --git a/src/include/client.h b/src/include/client.h
index 5fe14f1..6620794 100644
--- a/src/include/client.h
+++ b/src/include/client.h
@@ -105,6 +105,7 @@ void PreProcessData() {
               }
         }
       }
+  //find all unkown blocks that are adjacnent to clicked blocks
 }
 /**
  * @brief The definition of function MakeBestGuess()