I'm on the road this week. Save for a couple of brief layovers, I've been doing a lot of driving. In light of this, I was inspired to feature a puzzle that could be solved without pen and paper. It was while glancing at my hands (which were, at the time, wrapped around a steering wheel) that this classic brain teaser came to mind.

## Sunday Puzzle #27: Finger Counting

What is the highest number you can reach by counting with the fingers on both hands? Assume, for the purposes of this question, that thumbs are fingers, and that you are finger-counting with a total of ten digits. (Once solved, it should be straightforward to determine maximum countable values for N-finger scenarios.)

We'll be back next week with the solution â€“ and a new puzzle! Got a great brainteaser, original or otherwise, that you'd like to see featured? E-mail me with your recommendations. (Be sure to include "Sunday Puzzle" in the subject line.)

## SOLUTION To Sunday Puzzle #26: Links in a Chain

Last week I asked you to turn four three-link chains into a closed loop of twelve links, and to do so by cutting a re-welding as few links as possible.