Difficulty in framing a query
WITH cte AS ( SELECT col1, 
              FIRST_VALUE(col2) OVER (PARTITION BY col1 
                                      ORDER BY col3 DESC) fv 
              FROM table )
SELECT col1
FROM cte
WHERE fv = 53


If your server is more ancient than 2012, do the same by using ROW_NUMBER() and adding the condition rownumber=1.