Which choice is better: re-posting a closed challenge with 4 downvotes, or reopen the closed challenge?
The only problem seen in this challenge (at least by me) is that the spec is too unclear. If this challenge is not a duplicate, it is a valid challenge on CGCC.
However, reposting the same challenge also seems to be a valid option (at the risk of VTC as a duplicate); it is easier post a new question instead of editing. Reposting is easier to find out the flaws, although I suspect editing over the same challenge content will achive the same result.