diff -r 29fc780ca130 -r fa7f7144f2bb main_solution4/knight3.scala
--- a/main_solution4/knight3.scala	Tue Dec 07 01:35:00 2021 +0000
+++ b/main_solution4/knight3.scala	Tue Dec 07 23:17:51 2021 +0000
@@ -64,4 +64,10 @@
 // testcases
 //print_board(70, tour_on_mega_board(70, List((0, 0))).get)
 
+
+
 }
+
+
+val dim = 30 //75
+M4c.print_board(dim, M4c.tour_on_mega_board(dim, List((0, 0))).get)