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 | 61 | Subscribers | Read | thefiddler.substack.com |
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Chart Rankings
How this newsletter ranks in the official Substack charts.
| #101 | |
| #55 |
Latest Issues
Recent posts by this newsletter. Browse the email archive.
Can You Shut the Box?
Your goal is to flip down six tiles, numbered 1-6. For as many turns as you can, you roll a die and flip down a combination of tiles adding up to the roll. How often can you flip down all six tiles?
Can You Turn a Right Triangle Into an Isosceles Triangle?
Starting with a 3-4-5 right triangle, make an isosceles triangle by appending a second triangle to one of its sides. How many distinct ways can you do this?
Round, Round, Get a Round, I Get a Round
Pick some random numbers. Round them all and then add them up. Or add them all and then round the sum. How often do you get the same result, either way?
How High Can You Jump?
A high jumper contorts into a circular arc with uniform density. Where’s their center of mass, and how far is it from their lowest and highest points?
Authors
The writers behind this newsletter.
Former Puzzle Editor @FiveThirtyEight; Math VP @Amplify; Co-Founder @SchoolYourself
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