## Archive for the ‘Puzzle’ Category

### Infinite hat problems (solutions)

Posted by: **Dave Richeson** on August 11, 2009

### Infinite hat problems

Posted by: **Dave Richeson** on August 10, 2009

### The famous trick donkeys: a Sam Loyd puzzle

Posted by: **Dave Richeson** on June 25, 2009

### Freeman Dyson and a mathematical puzzle in the NY Times

Posted by: **Dave Richeson** on April 14, 2009

### What is wrong with this picture?

Posted by: **Dave Richeson** on January 28, 2009

### KenKen

Posted by: **Dave Richeson** on December 12, 2008