diff -r 438459a8e48b -r 8c868feb917b testing3/knight_test1.scala
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/testing3/knight_test1.scala	Thu Nov 22 23:00:57 2018 +0000
@@ -0,0 +1,5 @@
+
+assert(is_legal(8, Nil, (3, 4)) == true)
+assert(is_legal(8, List((4, 1), (1, 0)), (4, 1)) == false)
+assert(is_legal(2, Nil, (0, 0)) == true)
+