Please try this:
1.First query objects: Date, Column A, Column B Where: Column A Equal to Column B -> This is a special operand Type -> Object from this query
2. Second query objects: Date, Column A, Column B
3. In your report create a new Variable named "Score" Definition: =If([Column A.Query1]=[Column A.Query2];1;0)
4. Create Table with the following objects: Date.Query2, Column A.Query2, Column B.Query2, Score
Hope it works. Good luck!