diff -r 6ea450e999e2 -r 6d25ccbb3cf2 testing2/knight3c_test.scala
--- a/testing2/knight3c_test.scala	Sun Dec 03 21:11:49 2017 +0000
+++ b/testing2/knight3c_test.scala	Tue Dec 05 00:34:14 2017 +0000
@@ -1,8 +1,8 @@
 
-import scala.concurrent._
-import scala.concurrent.duration._
-import ExecutionContext.Implicits.global
-import scala.language.postfixOps 
+//import scala.concurrent._
+//import scala.concurrent.duration._
+//import ExecutionContext.Implicits.global
+//import scala.language.postfixOps 
 
 type Pos = (Int, Int)
 type Path = List[Pos]
@@ -27,21 +27,21 @@
     if (legal_moves_urban(dim, p, y).contains(x)) correct_urban(dim)(y::p) else false
 }
 
-lazy val f1 = Future {
+//lazy val f1 = Future {
 
   val ts8 = CW7c.first_tour_heuristic(8, List((0,0))).get
   assert(correct_urban(8)(ts8) == true)
 
-}
+//}
 
-Await.result(f1, 360 second)
+//Await.result(f1, 360 second)
 
 
-lazy val f2 = Future {
+//lazy val f2 = Future {
 
   val ts40 = CW7c.first_tour_heuristic(40, List((0,0))).get
   assert(correct_urban(40)(ts40) == true)
 
-}
+//}
 
-Await.result(f2, 360 second)
+//Await.result(f2, 360 second)