diff -r 018b9c12ee1f -r f7bcb27d1940 templates2/knight1.scala
--- a/templates2/knight1.scala	Fri Nov 09 07:30:02 2018 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,42 +0,0 @@
-// Part 1 about finding and counting Knight's tours
-//==================================================
-
-object CW7a {
-
-type Pos = (Int, Int)    // a position on a chessboard 
-type Path = List[Pos]    // a path...a list of positions
-
-//(1a) Complete the function that tests whether the position 
-//     is inside the board and not yet element in the path.
-
-//def is_legal(dim: Int, path: Path)(x: Pos) : Boolean = ...
-
-
-//(1b) Complete the function that calculates for a position 
-//     all legal onward moves that are not already in the path. 
-//     The moves should be ordered in a "clockwise" manner.
- 
-//def legal_moves(dim: Int, path: Path, x: Pos) : List[Pos] = ...
-
-
-//some test cases
-//
-//assert(legal_moves(8, Nil, (2,2)) == 
-//  List((3,4), (4,3), (4,1), (3,0), (1,0), (0,1), (0,3), (1,4)))
-//assert(legal_moves(8, Nil, (7,7)) == List((6,5), (5,6)))
-//assert(legal_moves(8, List((4,1), (1,0)), (2,2)) == 
-//  List((3,4), (4,3), (3,0), (0,1), (0,3), (1,4)))
-//assert(legal_moves(8, List((6,6)), (7,7)) == List((6,5), (5,6)))
-
-
-//(1c) Complete the two recursive functions below. 
-//     They exhaustively search for knight's tours starting from the 
-//     given path. The first function counts all possible tours, 
-//     and the second collects all tours in a list of paths.
-
-//def count_tours(dim: Int, path: Path) : Int = ...
-
-//def enum_tours(dim: Int, path: Path) : List[Path] = ...
-
-
-}