The place for mathematical puzzles and the puzzling community. Two new puzzles every Friday morning!
| Platform |  | Pricing | Freemium | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 171 | Founded | 3 years ago | Last Issue | 41 hours ago |
| Active | |||||
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Can You Gerrymander Like a Dummy?
You’re gerrymandering a map on behalf of your political party. What are the chances that your party’s greed will backfire?
Welcome to Fiddler on the Proof! Every Friday morning, I present mathematical puzzles intended to challenge and deli...
How Fast Can You Surf?
A surfer is riding a big wave, when a smaller, faster wave hits from the opposite direction. How fast does the resulting “combined” wave travel?
Welcome to Fiddler on the Proof! Every Friday morning, I present mathematical puzzles intended...
Can You Swim With the Fishes?
You’re tracking the speeds of some fish swimming across a koi pond. What average speed do you measure?
Welcome to Fiddler on the Proof, the spiritual successor to FiveThirtyEight’s The Riddler column.
Can You Frame the Triangle?
You want to frame your prized, triangular tabletop “football.” What’s the smallest square frame you can get away with?
Welcome to Fiddler on the Proof, the spiritual successor to FiveThirtyEight’s The Riddler column.
Can You Swap the Cups?
Three cups lay before you. Two are picked at random and swapped, over and over, until they’re back in the original order. On average, how many swaps does this take?
Welcome to Fiddler on the Proof, the spiritual successor to FiveThirtyEigh...
Key Facts
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Authors
The writers behind this newsletter.
Former Puzzle Editor @FiveThirtyEight; VP STEM @Amplify; Co-Founder @SchoolYourself
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