diff -r 018b9c12ee1f -r f7bcb27d1940 templates2/knight2.scala
--- a/templates2/knight2.scala	Fri Nov 09 07:30:02 2018 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,26 +0,0 @@
-// Part 2 about finding a single tour for a board
-//================================================
-
-// copy any function you need from file knight1.scala
-
-object CW7b {
-
-type Pos = (Int, Int)    // a position on a chessboard 
-type Path = List[Pos]    // a path...a list of positions
-
-
-//(2a) Implement a first-function that finds the first 
-//     element, say x, in the list xs where f is not None. 
-//     In that case Return f(x), otherwise None. If possible,
-//     calculate f(x) only once.
-
-//def first(xs: List[Pos], f: Pos => Option[Path]) : Option[Path] = ...
-
-//(2b) Implement a function that uses the first-function for
-//     trying out onward moves, and searches recursively for a
-//     knight tour on a dim * dim-board.
-
-//def first_tour(dim: Int, path: Path) : Option[Path] = ...
- 
-
-}