• About
  • Resources
    Riddler Blog Posts Hector Pefo's Puzzle Blog

Jamshrivelson


Puzzle Solutions

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

Tree-edge triage

Can you taunt your friend forever?

Posted on September 1, 2024

Tags: recursion phase-transitions game-theory jane-street

Drifting around

How often will the round of the sums be the sum of the rounds?

Posted on August 26, 2024

Tags: random-walks approximation

Judging judging

How often are we penalizing our bravest gymnasts?

Posted on August 11, 2024

Tags: geometry

Lose to win

Can you lose the points while winning the match?

Posted on July 17, 2024

Tags: partition-functions counting

Can you witness an epic collapse?

How often will Indianapolis get its dreams crushed?

Posted on June 9, 2024

Tags: counting first-passage

Interview line splitting

What is the sum of the products of endless division?

Posted on June 1, 2024

Tags: scaling recursion

The radius of a rectangle

What would the world look like if you could only see squares?

Posted on May 19, 2024

Tags: scaling geometry
  • ← Newer Posts
  • Older Posts →

Josh Silverman  •  2025

Like the layout?