6

# Hex Board!

If you read about the amazing gift of the (now consumed) Sierpinskitaschen last week, you would rightly assume that our present karma had about played itself out. Not so! On Tuesday I had two students–third graders at an after school math circle I lead–present me with one of the all time awesome-est gifts I have ever received.

I am, you see, a hex fan. Hex is a board game, the creation of which is often attributed to John Nash, who apparently dreamed it up while looking at his bathroom tiles. It’s played on a rhombus board made of hexagons. The rules are simple: you can color in a hex on your turn. First to build a connection between their two sides wins.

I’ve decimated who knows how many forests playing this game with students. The strategy is so beautiful, and the mathematical connections so profound that I’ve always felt it was worth it to hand out copy after copy, as my students colored in one game after another. Now, finally, I can play the game in true and eco-friendly style. My two students, Jack and Ben, looked at their parents bathroom renovation project and noted that there were going to be some hexagonal tiles left over. They thought of my love for the game, and decided to build me my very own hex board.

These were the same kids who asked me what the atomic weight of nerf is.

I also played a game with Jack, who almost beat me (I haven’t lost to a student without a handicap in many years, though a girl in the same class beat me two weeks ago with a three stone headstart.) There’s a way in which the next generation always seems smarter than the last.

If you were able to follow the rules, see if you can solve this hex puzzle below. How can black play and win?

Thanks, Ben and Jack! This is one of the best gifts I’ve ever received.

1. Jason Buell

Great gift but it’s really a testament to the impact you’re having on your kids. It’s not just that they thought to give you a gift, but that you’ve helped them view everyday objects in a whole new light.

2. Roberto Marquez

Excellent. That’s a great gift. You should be proud of the impact you’ve had on your students.

3. David J. Bush

I’m always glad to hear from another Hex player. I’m glad to see your board upholds the tradition of locating the black border rows clockwise from the acute corners. I hope you include the pie rule when you play. The puzzle is a good introductory one which demonstrates the importance of keeping your defenses separate from each other when you conduct an attack. Thanks for your work!

1. Post
Author
Dan

The pie rule… just looked it up. In general I haven’t been playing with it–I’ve just had students switch turns. Great suggestion, though. I’ll have to start using it with my more serious players. Thanks!

4. Rebecca

In general, I’ve given up the fight to correct the world, but since you are math guy, I have to say it… Decimate means to reduce by 1/10th. Not wipe out. Although because common incorrect usage will prevail, eventually you will be right. ðŸ™‚

Cool hex board!