diff -r 59e005dcf163 -r 7550c816187a main_testing4-old/knight_test1.scala
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main_testing4-old/knight_test1.scala	Sat Nov 04 18:53:37 2023 +0000
@@ -0,0 +1,6 @@
+import M4a._
+
+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)
+