diff --git a/index.html b/index.html
index a5488ab..1c74650 100644
--- a/index.html
+++ b/index.html
@@ -340,6 +340,9 @@
                             makeent(3,3,"player",{})
                             px=3
                             py=3
+                            paritychallenge=false
+                            //uncomment the following line and then reset to enable parity challenge
+                            //paritychallenge=true
                         break;
                     }
                     if (px+dx<0||px+dx>49||py+dy<0||py+dy>49){