Update manual copyright to 2006.

[sgt/puzzles] / puzzles.but

diff --git a/puzzles.but b/puzzles.but
index 49fe280..f044670 100644 (file)
--- a/puzzles.but
+++ b/puzzles.but
@@ -24,7 +24,7 @@
 
 This is a collection of small one-player puzzle games.
 
-\copyright This manual is copyright 2004-5 Simon Tatham. All rights
+\copyright This manual is copyright 2004-2006 Simon Tatham. All rights
 reserved. You may distribute this documentation under the MIT licence.
 See \k{licence} for the licence text in full.
 
@@ -1807,20 +1807,11 @@ These parameters are available from the \q{Custom...} option on the
 
 \dd Size of grid in squares.
 
-\dt \e{Recursion depth}
-
-\dd Determines how much guesswork and backtracking you will need to
-do to solve the puzzle. When this is set to zero (as it is for all
-of the \q{Easy} options in the menu), you should always be able to
-deduce the state of an edge without having to guess. If you increase
-it, you will have to guess more and more.
-
-\lcont{
-
-Setting a high value for this option is liable to consume a lot of
-CPU time and memory. Be warned!
+\dt \e{Difficulty}
 
-}
+\dd Controls the difficulty of the generated puzzle.
+\#{FIXME: what distinguishes Easy, Medium, and Hard? In particular,
+when are backtracking/guesswork required, if ever?}
 
 
 \C{inertia} \i{Inertia}