Each square contains a small diagram showing which other squares
change when you flip it.
-\C{flip-controls} \i{Flip controls}
+\H{flip-controls} \i{Flip controls}
\IM{Flip controls} controls, for Flip
\IM{Flip controls} keys, for Flip
\IM{Flip controls} shortcuts (keyboard), for Flip
-Left-click in a square to flip it and its associated squares. That's
-all!
+Left-click in a square to flip it and its associated squares.
+
+If you use the \q{Solve} function on this game, it will mark some of
+the squares in red. If you click once in every square with a red
+mark, the game should be solved. (If you click in a square
+\e{without} a red mark, a red mark will appear in it to indicate
+that you will need to reverse that operation to reach the solution.)
\H{flip-parameters} \I{parameters, for flip}Flip parameters