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Top 10 most difficult in DB

IdnrStarting numbersDifficulty
5816920 (Easy)
5815960 (Easy)
5814920 (Hard)
58131020 (Super easy)
5812940 (Easy)
5811940 (Easy)
5810920 (Hard)
5809920 (Easy)
5808900 (Easy)
5807960 (Super easy)