diff -r c3d3461a5e77 -r e3878cdd38bc marking3/knight1_test5.scala
--- a/marking3/knight1_test5.scala	Tue Feb 04 11:20:31 2020 +0000
+++ b/marking3/knight1_test5.scala	Tue Feb 04 14:15:42 2020 +0000
@@ -1,3 +1,4 @@
+import CW8a._
 
 //type Pos = (Int, Int)    // a position on a chessboard 
 //type Path = List[Pos]    // a path...a list of positions
@@ -23,8 +24,8 @@
 }
 
 
-val ts1_urban = first_tour(8, List((0, 0))).get
-assert(correct_urban(8)(ts1_urban) == true)
+val ts1_urban = first_tour(6, List((0, 0))).get
+assert(correct_urban(6)(ts1_urban) == true)
 
 val ts2_urban = first_tour(4, List((0, 0)))
 assert(ts2_urban == None)