diff --git a/templates/challenge-all-submissions.hamlet b/templates/challenge-all-submissions.hamlet
index 037833f..64d4b59 100644
--- a/templates/challenge-all-submissions.hamlet
+++ b/templates/challenge-all-submissions.hamlet
@@ -2,3 +2,8 @@
             <p>This is a long list of all submissions, if you want to see only the best, click <a href="@{ShowChallengeR (challengeName challenge)}">leaderboard</a>.
 
 ^{Table.buildBootstrap (submissionsTable tests) submissions}
+
+<div id="graph-container">
+
+<script src="/static/js/sigma.min.js">
+<script src="/static/js/sigma.parsers.json.min.js">
diff --git a/templates/challenge.lucius b/templates/challenge.lucius
index a6a174c..56d16ea 100644
--- a/templates/challenge.lucius
+++ b/templates/challenge.lucius
@@ -8,4 +8,9 @@
     width: auto;
     overflow: hidden;
     left-margin: 5px;
-}
\ No newline at end of file
+}
+
+#graph-container {
+    height: 400px;
+    margin: auto;
+}