Puzzles

Playing with arithmetic can lead us to unexpected and profound discoveries that point toward deeper mathematics and sometimes even deeper science.

Readers used their Zen-like puzzle solving skills to discover hidden insights.

Sometimes the act of solving a puzzle can itself reveal hidden insights.

Mathematicians have long pondered the reach of a grazing goat tied to a fence, only finding approximate answers until now.

A numerical puzzle, a geometric puzzle and a game of random patterns — all with connections to the legendary mathematician — elicited an enthusiastic response from readers.

Have fun exploring a numerical puzzle, a geometric puzzle and a game of random patterns, all inspired by the playful genius of the legendary mathematician.

The medical research scientist and Quanta puzzle columnist Pradeep Mutalik explores how to make sense of COVID-19 data while managing your personal risk.

Awash in coronavirus data, misinformation and tremendous uncertainty, we need to put our risk analysis skills to the ultimate test.

Readers simulated the genetics of dog breeding to solve a puzzle about mixed breed percentages and sexual reproduction.