diff -r 29fc780ca130 -r fa7f7144f2bb progs/cube.sc
--- a/progs/cube.sc	Tue Dec 07 01:35:00 2021 +0000
+++ b/progs/cube.sc	Tue Dec 07 23:17:51 2021 +0000
@@ -61,7 +61,7 @@
 def pp_cube(c: Cube) : String = 
   s"${pp_face(c.f1)}\n${pp_face(c.f2)}\n${pp_face(c.f3)}\n${pp_face(c.f4)}\n${pp_face(c.f5)}\n${pp_face(c.f6)}"  
 
-// specific cube
+
 val init = 
     Cube(Face(White, Green, White, White), 
          Face(Blue, Yellow, Orange, Red), 
@@ -137,7 +137,7 @@
 
 def searchS(cs: Set[Cube], d: Int) : Boolean = { 
   println(s"Depth: $d    Cands: ${cs.size}")  
-  //memory()
+  memory()
   if (cs.exists(solved == _)) true
   else searchS(cs.flatMap(actionsS), d + 1)
 }  
@@ -163,13 +163,13 @@
 
 def search2(cs: List[(Cube, Actions)], d: Int) : (Cube, Actions) = { 
   println(s"Depth: $d    Cands: ${cs.length}")  
-  val res = cs.find(solved == _._1)
+  val res = cs.find(init == _._1)
   if (res.isDefined) res.get
   else search2(cs.flatMap((actions2 _).tupled), d + 1)
 }  
 
 //println("List Version with Actions")
-//println(search2(List((init, Nil)), 0)._2.mkString("\n"))  
+//println(search2(List((solved, Nil)), 0)._2.mkString("\n"))  
 //println(s"${time_needed(1, search2(List((init, Nil)), 0))} secs") 
 
 // using Maps for recording the moves
@@ -181,13 +181,13 @@
 
 def searchM(cs: Map[Cube, Actions], d: Int) : Actions = { 
   println(s"Depth: $d    Cands: ${cs.keySet.size}")  
-  val res = cs.keySet.find(solved == _)
+  val res = cs.keySet.find(init == _)
   if (res.isDefined) cs(res.get)
   else searchM(cs.flatMap((actionsM _).tupled), d + 1)
 }  
 
 println("Map Version with actions")
-println(searchM(Map(init -> Nil), 0).mkString("\n"))  
+println(searchM(Map(solved -> Nil), 0).mkString("\n"))  
 println(s"${time_needed(1, searchM(Map(init -> Nil), 0))} secs")
 
 
@@ -205,3 +205,11 @@
 println("Bidirectional Version with actions")
 println(bsearch(Map(init -> Nil), Map(solved -> Nil), 0))  
 println(s"${time_needed(1, bsearch(Map(init -> Nil), Map(solved -> Nil), 0))}")
+
+
+
+
+
+
+// more memory 
+// JAVA_OPTS="-Xmx2g"
\ No newline at end of file