My printable puzzles contain a page of hints in addition to a page of answers.
The hints are puzzle grids that contain numbers showing the order in
which the squares were solved by my computer. Although this is not necessarily the order
you would solve the puzzle, it's probably in the neighborhood.
Follow the numbered squares in order 1,2,3,4,5... until you find a square you haven't
solved yet. This square (or the one or two immediately after it) is
a good candidate to solve next.