1
I assumed positive digits only and did not consider a zero (not shown as in use).
7 is absent. It would contribute 4 to the total score of 6 requiring either 5 or 6 (which appear only once) clashing with Guess 3, or 2, 3, 4 or 8 padding with repeats. All these lead to contradictions when present with 7.
9 is absent. It would contribute 3 to the total. It ...
Only top voted, non community-wiki answers of a minimum length are eligible
