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Top 10 most difficult in DB

IdnrStarting numbersDifficulty
763060 (Super easy)
762940 (Super easy)
762880 (Super easy)
762740 (Very easy)
762640 (Very easy)
762540 (Super easy)
762440 (Super easy)
762340 (Very easy)
762240 (Very easy)
762140 (Super easy)