[Groop] Question for ME: jigsaw puzzles?

[Tone]

Peter,

Maybe you already thought of this, but if you want to enjoy doing a
two-sided puzzle (or you simply get totally stuck while doing one side),
just get two sheets of transparent glass or plastic big enough to cover
the final dimensions of the completed puzzle. Tape one edge of the two
sheets together to form a hinge, then when you want to flip everything
over shut the two sides of glass/plastic together and flip whatever part
of the puzzle you have completed so far.
_TONE_