Counting Down

The countdown to my book’s launch is on in earnest now: only six more days! Such metaphors as “countdown” and “launch” seem very apropos to me, because I feel like an astronaut strapped in his chair, with only ten minutes to go until...

Easy card game, hard math problem

Today the New York Times Numberplay blog features a card game that I co-invented, along with a mathematical problem: What is the best strategy? Here are the rules for “Stern-Mackenzie One-Round War.” The game requires three people, one of whom serves only...

The cheating coach redux

A few of you might remember a post I wrote last year about a really cool math problem that a friend sent to me. For those who don’t remember, here it is again: Two chess teams are going to play a chess match. The best players on each team are supposed to play on...

The Fame Phenomenon

To my surprise (and pleasure), two non-chess-playing friends e-mailed me a link to the same New York Times article. Nicholas Kristof, a regular op-ed columnist and former Pulitzer Prize winner, wrote a column today about Elizabeth Spiegel and her national champion...