diff --git a/html/images/space.svg b/html/images/space.svg
index 4034ac5..1a73354 100644
--- a/html/images/space.svg
+++ b/html/images/space.svg
@@ -465,9 +465,13 @@
         const x2 = l.getAttribute('x2');
         const y2 = l.getAttribute('y2');
         const str = `${x1},${y1} ${x2},${y2}`;
-        if (mappedEdges.includes(str) && (lineContainer.childElementCount < 4 || !collisionEdges.includes(str))) {
-          l.remove();
-        }
+
+        if (mappedEdges.includes(str))
+          if ([
+            lineContainer.childElementCount <= collisionEdges.length,
+            !collisionEdges.includes(str)
+          ].some(c => c))
+            l.remove();
       });
 
       if (restart) {