Computer has picked a number of four different digits. Your goal is to guess it.
Input a four-digit number into a text field, then press Enter. You’ll see the
answer:
1 b 2 c
where 1 is number of “bulls” — the digits located in your number in the same
position as in computer number, and 2 is number of “cows” — the matching
digits placed on different positions.
Example:
Computer: 1945
You: 1492
Answer: 1b, 2c
(The bull is “1”, the cows are “4 and “9”)