Go

In Go, players alternately place stones on empty intersections of a 19x19 grid. The goal is to enclose territory behind stone perimeters and, secondarily, to tightly surround and capture enemy stones. After both players pass, they add up their territory and deduct the number of captives lost, higher score wins. The concept is simple yet the challenge can enrich a lifetime. In truth many lifetimes, for Go has been played for thousands of years. Known also as Weiqi, Igo, and Baduk, the game today has a worldwide following. (Small regional rule differences exist, but they seldom affect play.) S…