Last year, Brittany Shelton and I coauthored a short note introducing the readers of Mathematics Magazine to Partiti, the puzzle featured in the Magazine throughout 2018. This year the Magazine will feature Tribus, a puzzle created by David Nacin.
At the invitation of Michael Jones, the magazine editor and my colleague at Mathematical Reviews, Brittany and I helped with the selection of Tribus as this year’s puzzle and wrote a very brief (one paragraph) introduction, Introducing Tribus, which can be seen at the Magazine’s site or through my papers page (under Others).
A kind of library 