The computer has chosen a four-letter word at random. Guess the word
using the text box, then press "Guess". If you get a letter right, it'll
appear on the appropriate line above. Words you have guessed will appear
in the "Previous Guesses" box.
If you're really struggling, press the "Need a hint?" button, and you'll receive an extra letter to help.
Press "Give up?" if you, well, give up.