Try to guess the computer?s four-letter word. After each guess the computer will award you with bulls (or black marks) and cows (or white marks) to signify, respectively, correct letters in correct positions and correct letters in incorrect positions.
Then, switch roles with the computer and let it try to guess your word! The computer plays a fairly good game but can be beaten with a little effort. In fact, the computer is at a distinct disadvantage as it avoids words that are not well established, rarely used or obscene.
Select ?Challenge Computer? mode in order to challenge the computer to a scored, three-round game and pit your logic against the computing power of a machine!
Edit: Use keys ?A? to ?Z? to input guesses, keys ?1? to ?4? to input clues, space, arrow keys, backspace to make adjustments, and enter when done.