DY: Most Poskim are Mattir Scrabble and Bananagrams. The real Shaila is the Scrabble board with the individual holders for letters on the board (one of the old Deluxe Editions). Rav Moshe said that that one is Assur.
I personally hold that the new edition of Settlers with the puzzle border is an Issur D’Oraisa of K’siva.