Bulls & Cows

press enter to input your guessing number html version may require some time to download. you are going to find out the 4-digit secret number, all digits are different each time you guess the number, a hint will be shown like "1a2b", which means theres 1 bull (the secret has one of your digits, and its in right position) and 2 cows (the secret has two of your digits, but its not in right position) example: the secret is 1234 and you are guessing 1345, the hint will be "1a2b" you have 9 tries to ...