diff --git a/15/solution.mjs b/15/solution.mjs
index 5810b36..e24c5cf 100644
--- a/15/solution.mjs
+++ b/15/solution.mjs
@@ -22,9 +22,7 @@ function rangesOverlap(range1, range2, tollerance=0) {
   range2 = [...range2].sort((a, b) => a - b);
   return (
     (range1[0] >= range2[0] - t && range1[0] <= range2[1] + t) ||
-    (range1[1] >= range2[0] - t && range1[1] <= range2[1] + t) ||
-    (range2[0] >= range1[0] - t && range2[0] <= range1[1] + t) ||
-    (range2[1] >= range1[0] - t && range2[1] <= range1[1] + t)
+    (range2[0] >= range1[0] - t && range2[0] <= range1[1] + t)
   );
 }