# Problem 185: Number Mind
The game Number Mind is a variant of the well known game Master Mind.
Instead of coloured pegs, you have to guess a secret sequence of digits.
After each guess you're only told in how many places you've guessed the
correct digit. So, if the sequence was 1234 and you guessed 2036, you'd
be told that you have one correct digit; however, you would NOT be told
that you also have another digit in the wrong place. For instance, given
the following guesses for a 5-digit secret sequence, 90342 ;2 correct
70794 ;0 correct 39458 ;2 correct 34109 ;1 correct 51545 ;2 correct
12531 ;1 correct The correct sequence 39542 is unique. Based on the
following guesses, 5616185650518293 ;2 correct 3847439647293047 ;1
correct 5855462940810587 ;3 correct 9742855507068353 ;3 correct
4296849643607543 ;3 correct 3174248439465858 ;1 correct 4513559094146117
;2 correct 7890971548908067 ;3 correct 8157356344118483 ;1 correct
2615250744386899 ;2 correct 8690095851526254 ;3 correct 6375711915077050
;1 correct 6913859173121360 ;1 correct 6442889055042768 ;2 correct
2321386104303845 ;0 correct 2326509471271448 ;2 correct 5251583379644322
;2 correct 1748270476758276 ;3 correct 4895722652190306 ;1 correct
3041631117224635 ;3 correct 1841236454324589 ;3 correct 2659862637316867
;2 correct Find the unique 16-digit secret sequence.