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Jamshrivelson


Puzzle Solutions

The chance in our stars

A cool puzzle for planes that fly at $\approx 0\,\text{mph}.$

Posted on February 11, 2023

Tags: spherical-geometry distributions projection

Keep on singing

Will you get to zero bottles of beer on the wall before someone loses their cool?

Posted on February 3, 2023

Tags: recursion expectation markov

Chain of squares

How long can you keep your square away from the covetous origin?

Posted on January 28, 2023

Tags: fixed-point dynamics jane-street

Drone delivery

How much shorter as the crow flies?

Posted on January 21, 2023

Tags: expectation geometry integration

The Dark Forest

How long will you wait to get off your assemblers?

Posted on January 8, 2023

Tags: optimality

Secret Santa administrivia

How long must you wait to pawn your candle off on some poor relative?

Posted on December 17, 2022

Tags: approximation linearity-of-expectation

Soccer Brackets

Who will win when anything is possible?

Posted on December 11, 2022

Tags: uniform-probability rankings tournaments

Soccer Buses

How many trips will the poor saps have to make?

Posted on December 7, 2022

Tags: recursion symmetry linearity-of-expectation

Reasonable Sandwich

How often will the hand of fate deliver a reasonable slice to the undercard?

Posted on November 13, 2022

Tags: parameter-space geometry probability

Speedy Hammer

Will the giant hammer be going fast enough when it hits the big elf door?

Posted on November 13, 2022

Tags: conservation-of-energy optimization vectors
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Josh Silverman  •  2025

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