Mastermind
This is a 3-digit variation of the mastermind puzzle. You are given a set of rules about the placement and number of digits and you attempt to find a solution that satisfies all rules.
Rules
2
5
7
8
4
2
3
7
1
5
6
9
6
0
7
Solution Size
Solutions with duplicate numbers are allowed.
Solutions must match rule definition exactly (i.e. rules specifying 1 well-placed digit cannot also contain misplaced digits).