Fiddler on the Proof
Zach Wissner-GrossThe place for mathematical puzzles and the puzzling community. Two new puzzles every Friday morning!
| Platform |  | Pricing | Freemium | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 128 | Subscribers | Read | thefiddler.substack.com |
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How this newsletter ranks in the official Substack charts.
| #167 | |
| #76 |
Latest Issues
Recent posts by this newsletter. Browse the email archive.
Reasonable Rankings for College Football (2026)
Last year, I introduced what I called “reasonable rankings” for college football. I baked the entire college football season in an oven with a single knob, called 𝝀. When 𝝀 was very large, a team’s margin of victory was very important; wh...
Can You Fling the Fractal Darts?
A dartboard contains infinitely many circles arranged in a fractal pattern. Each circle’s point value is proportional to its area. What’s the highest score you can earn with a single dart?
Can You Take the Heat?
A spicy talk show is missing some of its hot sauces. Can you mix and match the sauces on hand to get all the varieties of heat you need?
A Loopy Holiday Gift Exchange
A class exchanges gifts by pulling names out of a hat. Following the trail of who buys a gift for whom, sometimes there’s one loop, other times multiple loops. How likely is each case?
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Authors
The writers behind this newsletter.
Former Puzzle Editor @FiveThirtyEight; VP STEM @Amplify; Co-Founder @SchoolYourself
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