used to select a peg colour, the left and right keys to select a
peg position, and the space bar or Enter key to place a peg of the
selected colour in the chosen position. \q{D} or Backspace removes a
-peg, and \q{H} adds a hold marker.
+peg, and Space adds a hold marker.
+
+Pressing \q{h} or \q{?} will fill the current guess with a suggested
+guess. Using this is not recommended for 10 or more pegs as it is
+slow.
When the guess is complete, the smaller feedback pegs will be highlighted;
clicking on these (or moving the peg cursor to them with the arrow keys