Strategy in real time: Dueling with an enemy that moves

STRATEGY is a two-way street. But many commentators act as though formulating a strategy is the same as solving a chess problem. Chess problems are artificially constructed arrangements on a chessboard where the goal is to find a series of moves that leaves the other side no room to evade a checkmate within three or four turns.

The sorts of conflicts bedeviling us these days, however, are more like the game of chess itself, in which there is no determinate, continuous series of moves that will guarantee victory every time. Each new contest depends on the actions of the other side, how we react to them, how they respond to our reactions, and so on.