Support for `pencil marks' in Solo, by right-clicking and typing a

[sgt/puzzles] / puzzles.but

diff --git a/puzzles.but b/puzzles.but
index fa7ce1a..865aad7 100644 (file)
--- a/puzzles.but
+++ b/puzzles.but
@@ -286,12 +286,14 @@ missing. See \k{common-id} for more details on this.)
 \i\cw{NETGAME.EXE} to avoid clashing with Windows's own \cw{NET.EXE}.)
 
 I originally saw this in the form of a Flash game called \i{FreeNet}
 \i\cw{NETGAME.EXE} to avoid clashing with Windows's own \cw{NET.EXE}.)
 
 I originally saw this in the form of a Flash game called \i{FreeNet}

-\k{FreeNet}, written by Pavils Jurjans. The computer prepares a
+\k{FreeNet}, written by Pavils Jurjans; there are several other
+implementations under the name \i{NetWalk}. The computer prepares a

 network by connecting up the centres of squares in a grid, and then
 shuffles the network by rotating every tile randomly. Your job is to
 rotate it all back into place. The successful solution will be an
 network by connecting up the centres of squares in a grid, and then
 shuffles the network by rotating every tile randomly. Your job is to
 rotate it all back into place. The successful solution will be an

-entirely connected network, with no closed loops. \#{Is it also true
-that a correct solution will not contain any cycles?} As a visual aid,
+entirely connected network, with no closed loops. \#{The latter
+clause means that there are no closed paths within the network.
+Could this be clearer? "No closed paths"?} As a visual aid,

 all tiles which are connected to the one in the middle are
 highlighted. 
 
 all tiles which are connected to the one in the middle are
 highlighted. 
 


@@ -758,6 +760,23 @@ type a digit or letter on the keyboard to fill that square. If you
 make a mistake, click the mouse in the incorrect square and press
 Space to clear it again (or use the Undo feature).
 
 make a mistake, click the mouse in the incorrect square and press
 Space to clear it again (or use the Undo feature).
 

+If you \e{right}-click in a square and then type a number, that
+number will be entered in the square as a \q{pencil mark}. You can
+have pencil marks for multiple numbers in the same square.
+
+The game pays no attention to pencil marks, so exactly what you use
+them for is up to you: you can use them as reminders that a
+particular square needs to be re-examined once you know more about a
+particular number, or you can use them as lists of the possible
+numbers in a given square, or anything else you feel like.
+
+To erase a single pencil mark, right-click in the square and type
+the same number again.
+
+All pencil marks in a square are erased when you left-click and type
+a number, or when you left-click and press space. Right-clicking and
+pressing space will also erase pencil marks.
+

 (All the actions described in \k{common-actions} are also available.)
 
 \H{solo-parameters} \I{parameters, for Solo}Solo parameters
 (All the actions described in \k{common-actions} are also available.)
 
 \H{solo-parameters} \I{parameters, for Solo}Solo parameters