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Why Sleeping Beauty Is Lost in Time

March 31, 2016

The famous Sleeping Beauty problem has divided probability theorists, decision theorists and philosophers for over 15 years. Puzzle columnist Pradeep Mutalik claims to have discovered the source of confusion.

insights puzzle

Solution: A Hat Trick + 1 of Hat Puzzles

March 23, 2016

For four game show variations of the hat puzzle, four clever ways to earn a better payoff than you might expect.

insights puzzle

A Hat Trick of Hat Puzzles

March 9, 2016

In three new variations of a famous logic puzzle, what are the best strategies for guessing the color of the hat on your head?

insights puzzle

Solution: ‘The Problem With Dancing Shapes’

February 24, 2016

Assigning elements from a large collection to one of two categories can yield almost “magical” predictions about highly complicated problems without actually solving them.

insights puzzle

The Problem With Dancing Shapes

February 9, 2016

In a geometrically designed social club, how do dancing, triangles and hexagons mix?

insights puzzle

Solution: ‘Sleeping Beauty’s Dilemma’

January 29, 2016

The solution to this month’s puzzle gets to the bottom of the famously ambiguous Sleeping Beauty probability problem.

insights puzzle

Sleeping Beauty’s Necker Cube Dilemma

January 14, 2016

Like a visually ambiguous Necker cube, the famous Sleeping Beauty problem can be perceived in two seemingly valid ways.

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Solution: ‘The Fabulously Fair Feast’

December 22, 2015

The solution to this month’s puzzle explains how to design a Sudoku square to figure out the likes and dislikes of four or eight finicky friends.

insights puzzle

The Fabulously Fair Feast

December 10, 2015

For this month’s puzzle, design a Sudoku square to figure out the likes and dislikes of four finicky friends.