Puzzles

A Crossnumber Puzzle With Squares
Puzzles

A Crossnumber Puzzle With Squares

By Stephen Meskin
For those who remember the puzzles I posed in my “Crossnumber Puzzles” (January/February 2019), the puzzles this time are to fill a 4 × 5 matrix in which each of the nine clues (four across and five down) is the same: a perfect square with the proviso that all nine perfect squares are different.

Squaring the Circle
Puzzles

Squaring the Circle

By Stephen Meskin
As with many mathematical concepts, “squaring the circle” has become a metaphor, in this case for something impossible to do. The ancient Greeks asked if by using a straight-edge and compass one could draw a square with the same area as a given circle in a finite number of steps.

The Election
Puzzles

The Election

By Joshua Feldman
When not writing or grading puzzles for Contingencies, for the past few years I have had a second extracurricular actuarial activity take up my time: I am the president of the Central State Actuarial Forum (CSAF), a proud affiliate of the Casualty Actuarial Society.

Celebrating Retirement
Puzzles

Celebrating Retirement

By Josh Feldman
I never was supposed to be an actuary. Instead, once it became clear I wasn’t going to be a pro surfer, it was quietly assumed that I would follow in my dad’s footsteps and be a physicist.