Well, this is very frustrating. I really wanted to play, I like the idea of competiting with your dad.
But as a non native english speaker, my vocabulary is too low to give me a chance.
Anyway, great idea !
(I don't know if you are aware, but in French speaking countries, competition are mostly played this way, everyone with the same letters. At the end everybody got its own points and the best word is placed on the board)