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Jamshrivelson


Puzzle Solutions

A chancy race

Will the coiners flip before you roll?

Posted on June 18, 2023

Tags: transformation stochastic

Take a number

When should you stop dreaming of a brighter future?

Posted on May 22, 2023

Tags: expectation strategy

Save the world

Good use of polling or bad use of polling?

Posted on May 15, 2023

Tags: approximation

Hard choices for the Easter bunny

Hoppity hop, which carton are you going to get?

Posted on April 9, 2023

Tags: counting symmetry

Left handed sister

Are you talking to some brother, or the brother?

Posted on April 6, 2023

Tags: bayes partition-function evidence

Robot long jump

Jump late, and long, but not too late.

Posted on April 1, 2023

Tags: game-theory strategy optimality jane-street

NCAA quota bracket

I'll take one of each.

Posted on March 26, 2023

Tags: counting symmetry tournaments

Fast times at the marble track

It won't be long before this marble's at your door

Posted on March 12, 2023

Tags: optimality conservation-of-energy calculus

Sicilian solitaire

There's nothing to do and there's nothing to win

Posted on February 19, 2023

Tags: recursion approximation

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
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Josh Silverman  •  2025

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