diff -r cfff88de2ff5 -r 21f41e08457d marking/knight3b_test.scala
--- a/marking/knight3b_test.scala	Tue Dec 20 01:48:09 2016 +0000
+++ b/marking/knight3b_test.scala	Wed Dec 21 01:19:25 2016 +0000
@@ -31,7 +31,7 @@
 
 lazy val f = Future {
 
-  val tsc = first_closed_tour_heuristic(6, List((3, 3))).get
+  val tsc = first_closed_tour_heuristic(6, List(List((3, 3)))).get
   assert(correct_closed_urban(6)(tsc) == true)
 
 }