In July 1993, a disguised player entered the World Open chess tournament in Philadelphia using the name of a mathematician ...

On a cold November afternoon in 1844, players in Washington opened a chess game in the old, familiar way, with a pawn pushed ...

But in recent months, select posts have concluded with an oddly formal phrase: “Thank you for your attention to this matter.” Andrew Harnik / Getty Images “It’s really different than how he typically ...

For the past two years, Ukraine has made dramatically effective use of small, cheap drones as complex and deadly tools of warfare. America has paid little attention. So little, in fact, that analysts ...

Federal judges are weighing strategies for how to respond to the high stakes, anonymous threats and politicized atmosphere of the Trump era. Federal judges are weighing strategies for how to respond ...