After brainstorming with Gareth, we've decided that this is a much

[sgt/puzzles] / puzzles.but

diff --git a/puzzles.but b/puzzles.but
index b3317c3..c25ec00 100644 (file)
--- a/puzzles.but
+++ b/puzzles.but
@@ -392,9 +392,9 @@ containing a number, and your aim is to arrange the numbers into
 ascending order.
 
 In basic Twiddle, your move is to rotate a square group of four
-tiles about their common centre. (Orientation is not significant:
-tiles never end up upside down!) On more advanced settings, you can
-rotate a larger square group of tiles.
+tiles about their common centre. (Orientation is not significant in
+the basic puzzle, although you can select it.) On more advanced
+settings, you can rotate a larger square group of tiles.
 
 I first saw this type of puzzle in the GameCube game \q{Metroid
 Prime 2}. In the Main Gyro Chamber in that game, there is a puzzle
@@ -432,6 +432,11 @@ are groups of identical numbers. In the simplified puzzle your aim
 is just to arrange all the 1s into the first row, all the 2s into
 the second row, and so on.
 
+\b You can configure whether the orientation of tiles matters. If
+you ask for an orientable puzzle, each tile will have a triangle
+drawn in it. All the triangles must be pointing upwards to complete
+the puzzle.
+
 
 \C{rectangles} \i{Rectangles}