Please forgive if this is off topic:
I have a free chess puzzle program (for Windows) at
https://sites.google.com/site/fredm/.
It is called YATT; here is a YouTube video:
https://www.youtube.com/watch?v=vEYPDWK1BaY&feature=youtu.be
I wrote it, in part, to replace the difficulties with using SCID
> Then I start the analysis engine but quickly cover up its output with
another window.
Right-clicking into the analysis window hides the analysis lines. A message
"click here to see moves" should appear.
Hiding the move can be triggered before the engine runs, so there's no need
to click with o