Tile tracking or 'consonant-heavy', how many S's or blanks are unseen, if an opponent is likely to have a bingo on their rack, or which tiles to play or conserve. For example, if Alice has the option of playing J(I)NN or J(I)LL, and four N's and zero L's remain unseen, then assuming both plays are otherwise equal (in terms of score, openings for the opponent), J(I)NN is likely the better play. Letter frequency lists for both Scrabble and Words with Friends are easily accessible (some versions of Scrabble have the tile distribution directly on the board) and, unlike word lists, using them
Scrabble letter distributions a "Y" it is worth 10 points, if a blank is used as a "Z" it is worth 15 points, and if a blank is used as a "K" it is worth 20 points. Each of those letters are so high in points, because they are used only in borrowed words. The score of 20 for a "K" is the highest known point value for any letter in any Scrabble score distribution worldwide. "Y" is absent in all sets except the paleographic extension of the first set because it is rare in Latin. "K" and "Z" are also absent in