Years ago, here on PM, there was a TK version of a Scrabble with opponent, sort of a scrabble engine, for listing the highest scoring N plays with the current board and rack. For TM reasons, I think it was renamed Scribble or something. Unfortunately, I can't find it right now, even though I'm sure I posted in that thread, oh so many years ago.

Can I buy a vowel?

Update: After a little more coffee, I think this is what I meant: Scrabble Game.