\dd Allows you to choose between a selection of types of tiling.
Some have all the faces the same but may have multiple different
types of vertex (e.g. the \e{Cairo} or \e{Kites} mode); others have
-all the vertices the same but may have differnt types of face (e.g.
+all the vertices the same but may have different types of face (e.g.
the \e{Great Hexagonal}). The square, triangular and honeycomb grids
are fully regular, and have all their vertices \e{and} faces the
same; this makes them the least confusing to play.
block of size two and means that one digit divided by the other is
equal to the given amount.
-Note that a block may contain more than one digit the same (provided
-the identical ones are not in the same row and column). This rule is
-precisely the opposite of the rule in Solo's \q{Killer} mode (see
-\k{solo}).
+Note that a block may contain the same digit more than once
+(provided the identical ones are not in the same row and column).
+This rule is precisely the opposite of the rule in Solo's \q{Killer}
+mode (see \k{solo}).
}
\IM{Singles controls} controls, for Singles
Left-clicking on an empty square will colour it black; left-clicking again
-will replace the number. Right-clicking will add a circle (useful for
+will restore the number. Right-clicking will add a circle (useful for
indicating that a cell is definitely not black).
You can also use the cursor keys to move around the grid. Pressing the
return or space keys will turn a square black or add a circle respectively,
-and pressing the key again will replace the number or remove the circle.
+and pressing the key again will restore the number or remove the circle.
(All the actions described in \k{common-actions} are also available.)