1)The game involves guessing a mysterious number using the fewest possible attempts.
2)Choose a number from 1 to 20 and enter it in the empty field on the left.
3)If the guessed number is too large or too small, a message will appear instructing you to choose another number.
4)Upon correctly guessing the mysterious number, a winning message will appear. If the result is the best so far, it will be recorded in the "highscore" field.