rules

The program begins the game by choosing a word unknown to the player.
The player gets 15 guesses to find the word. Each guess must be a valid word (i.e., must be listed in the Official Scrabble Players Dictionary).
For each guess the program tells the player how many of the letters in the guess are in the right place, and how many are in the wrong place.
For example, if you were playing the 5 letter version and the program chooses ROTOR. Suppose you guessed the word ERROR, the program would give you 2 blue dots and 1 red dot. The 2 blue dots mean that 2 of the letters in your word are in the correct position (the last R and O), while one of the letters is in the wrong position (one of the Rs in the 2nd or 3rd positions).
As another example, suppose you were playing the four letter version, and the program chose LOLL as the word. If you guessed LION, you'd get one blue dot (for the L) and one red (for the O). If you had guessed LIST, you would simply get one blue dot for the L. If you had guessed SHOT, you would have got one red dot for the O.
You get no feedback if your word is invalid, and the word shows as red.
If you guess a word you have already guessed, the program detects that and does not let you play that word again. This is to save you a turn.