In Puzzle 15, there are two Us available as well as a good bingo line that should be blocked. By playing PAGE, you balance your rack, set up a potential monster play of CAIQUE 15a (81) with QUAICH as a backup play with a U draw (as well as other QI options). Despite its low scoring nature and poor leave, PAGE is oddly the strongest play, since plays like QI don’t have potential to do anything productive.