For a limited time, try out a new feature: Needle and Haystack.
These four search challenges are based on several challenges recently posted in this blog. The format includes clues that lead the way to the solutions.
Try them out and leave any feedback you want.
https://21cif.com/INTERNETSEARCHCHALLENGE/challenges/needle/haystack
The subscription version will track user's scores and include additional challenges.
Tuesday, November 13, 2018
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