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Jamshrivelson


Puzzle Solutions

How many rides can you reserve?

How many rides will you get if you throw Mickey a little money on the side?

Posted on May 4, 2025

Tags: recursion

Sum one, somewhere

What's the chance the somebody comes across just zero or one labels on an unending walk down a binary tree with nodes randomly blessed with a label?

Posted on April 30, 2025

Tags: recursion trees

Hammer golf

Live by the hammer, die by the hammer.

Posted on April 21, 2025

Tags: game-theory recursive-games strategy

Infinite March madness

How often will the $1$-seed make the final four when there are $(2^d-1)$ worse teams in their region?

Posted on March 24, 2025

Tags: recursion trees

Diametric shore

If you wake up in a random spot on a semi-circular island, how far is the beach, probably?

Posted on March 16, 2025

Tags: geometry pdf cdf conditional-probability

Can you spin the graph?

If you tumble your function is it still a function?

Posted on February 2, 2025

Tags: spherical-geometry vectors

Can you hop to the lily pad?

The further you go, the harder it gets.

Posted on January 25, 2025

Tags: master-equation recursion

Lines of equidistance

What's the chance that two random points in the square are equidistant from some random point on the side that's closest to one of them?

Posted on December 1, 2024

Tags: geometry distance intermediate-value-theorem

Stable tiles

How to defy the laws of physics in service of age 3+ entertainment.

Posted on November 17, 2024

Tags: symmetry optimization

Peloton leaderboard

How great will you be if you're average in the middle?

Posted on October 14, 2024

Tags: statistics
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Josh Silverman  •  2025

Like the layout?