Comment Well, there's always competitive Scrabble ... (Score 1) 58
... which is a mixture of intense memorization, a few lookahead moves, and
some tile-counting (rather like card-counting for Blackjack).
However, there are two basic forks for tournaments, the North American
vs. British/International wordlist (~190,000 vs. ~270,000 words). The latter
contains more inflections, archaic words (incl. many more 2- and 3-letter words),
and international terms, 15-letters maximum.
See the captivating book "Word Freak", by participatory journalist Stefan Fatsis,
written in an immersive style a la George Plimpton.