WITH MaxScoreSubmissionCount AS (
    SELECT
        s.hacker_id AS hacker_id,
        COUNT(s.challenge_id) AS max_score_count
    FROM
        Submissions s
        JOIN Challenges c ON s.challenge_id = c.challenge_id
        JOIN Difficulty d ON c.difficulty_level = d.difficulty_level
    WHERE
        s.score = d.score
    GROUP BY
        s.hacker_id
)
SELECT
    h.hacker_id,
    h.name
FROM 
    MaxScoreSubmissionCount msc
    JOIN Hackers h on msc.hacker_id = h.hacker_id
WHERE
    msc.max_score_count > 1
ORDER BY
    msc.max_score_count DESC,
    h.hacker_id ASC
;