amoeba-1

Dimitrios Roxanas tells us why playing chess backwards is the new black (and white).

Have your say on the top ten matrices

Letter writing, hospital visits, and getting the family active are among the topics of discussion in this issue's Dear Dirichlet advice column

Axel Kerbec gets locked out while exchanging keys

Interviewing Matt was a mistake

When slide rules used to rule... find out why they still do