A few two-player Tabletop games you may enjoy.
Wil Wheaton

Wil, Thanks for the list. To add for those ‘playing at home’ (sorry, couldn’t resist), some of our favorite two person games are

Lost Cities by Reiner Knizia — which is listed as a board game, but you don’t need the board to play, so it’s highly portable

Race for the Galaxy by Thomas Lehmann