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# Puzzles

## Latest Articles

### Think of a Number. How Do Math Magicians Know What It Is?

Mathematical magic can seem like mind reading. Your job is to reveal the secret behind these four tricks.

### The Secrets of Zugzwang in Chess, Math and Pizzas

Learn the magic and math of how to win games when your opponent goes first.

### Play First and Lose: Zugzwang in Chess, Math and Pizzas

How to win games by going second and leaving your opponent with no good options.

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Why *e*, the Transcendental Math Constant, Is Just the Best

The solution to our puzzle about Euler’s number explains why e pops up in situations that involve optimality.

### Where Transcendental Numbers Hide in Everyday Math

The transcendental number *π* is as familiar as it is ubiquitous, but how does Euler’s number *e* transcend the ordinary?

### Math Can, in Theory, Help You Escape a Hungry Bear

How readers used their geometry skills to survive a dangerous puzzle.

### Can Math Help You Escape a Hungry Bear?

In this month’s puzzle, math is a question of life or death.

### How a Simple Arithmetic Puzzle Can Guide Discovery

Playing with numbers can lead to deep mathematical and scientific insights.

### The Puzzling Power of Simple Arithmetic

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