Force screen to be always on We're using Samsung with Android 4.1.2 as a scrabble timer - via the default Clock application. It would be much more comfortable if I could force the phone screen to be always on so that we can see the time remaining. I found no setting or downloadable program to achieve that.

I need some workaround tip - any ideas?
You should be able to do that using Tasker. Set up a profile with a "time" condition (specify the time frame you want the screen kept alive, e.g. "from 9 am to 6 pm", and for the task itself select "stay on". Make sure the option is disabled before starting this. tasker will then take care for it: Switching the option on at 9 am, and returning to the previous state at 6 pm (which is why you should have switched that option off to begin with).

Optionally, you could also define an "exit task" to explicilty switch that option off again − regardless of what it was set to in the beginning.