Word obfuscation and solving

Similar to the premise/mechanism of the TV game show "Wheel of Fortune". Start with a word or phrase. The first player gets to see the phrase and selects the order in which the letters will be revealed. The second player tries to solve the phrase as quickly as possible. The goal of the first player is to choose an ordering which he thinks will make it most difficult to solve.

Variations: reveal single letters of the phrase at a time, or all occurrences of a given letter. Many Orderers. Many Solvers. Whoever does the best among the many orderers or solvers. Choose a revelation order that makes it the most easiest to solve.