Download Reverse Hangman. (Requires Java.)
Think of a word for Reverse Hangman to guess.
When Reverse Hangman guesses a letter, you click on every position where that letter occurs. (Careful! Doing this quickly is harder than it seems!)
Reverse Hangman counts wrong guesses, but it doesn't actually draw a hangman picture.
Maybe yes. Flash is already installed on most browsers, and it would have been easy to build a much more enticing interface in Flash. However, it would have been trickier to implement the meat behind the "Poindexter" and "Einstein" algorithms.
And once Java Web Start installs the substantial download required for Einstein's dictionary attack, it stays on the client machine. Flash downloads may or may not be cached. [Is this right? What control do users have over Flash caching?]
Thank-you Wesley for the idea of having the computer do the guessing.
Look-and-feel courtesy of Karsten Lentzsch at JGoodies.