Q. Re- above question on creating a message using unattached Scrabble letters: Is there a problem with borer, (choosing – one of the prohibited actions on Shabbos), since one is choosing the letters now, but the message will be received at a latter time, when the people arrive?
A. Horav Shlomo Miller’s Shlit’a opinion is that if one scatters the Scrabble letters on a wide surface, there is no borer issue, since the letters are not mixed together.
Rabbi A. Bartfeld as revised by Horav Shlomo Miller Shlit’a