Getting rich by counting: the coins in a row puzzle
Yes, getting rich is about saving and earning. But it is also about competition. Winning in the job, stock, and housing markets is about outsmarting opponents and thinking strategically. In such games, it is often important to make the right move before the action begins, as the next puzzle illustrates. The ...

The flu and game theory
The current swine flu scare is a reminder that the flu is a fierce disease. New strains can develop quickly and disarm populations. One only has to remember the 1918-1919 Spanish flu which caused anywhere from 20 million to 40 million deaths. Combating the flu is no small feat. It requires ...