Cows and Bulls

It is a Two-palyer game in which the players take turns in trying to guess each other's word.

Player one(the Chooser), types a word and player two tries to guess it.

At each turn Player two(the Guesser) tries a word, and he will know how close it is to the answer by giving:

The number of Bulls :- letters correct in the right position.
The number of Cows :- letters correct but in the wrong position.

The Guesser tries to guess the answer in the fewest number of turns.

If either word has repeated letters the rule is that each letter can only count towards the score once, and Bulls are counted before Cows.