The Riddler - FiveThirtyEight.com

Links to puzzle sites all around the web
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The Riddler - FiveThirtyEight.com

Post by detuned » Tue 08 Mar, 2016 11:01 am

http://fivethirtyeight.com/tag/the-riddler/

There is a weekly series of some interesting mathematical/statistical conundrums here, if you like that kind of thing

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