It is. See Centaur chess[1] and correspondence chess. In correspondence chess people don't use standardized hardware (people will probably cheat anyway) but in

It is. See Centaur chess[1] and correspondence chess. In correspondence chess people don't use standardized hardware (people will probably cheat anyway) but in Centaur chess this can be done. [1]: http://en.wikipedia.org/wiki/Advanced_Chess http://en.wikipedia.org/wiki/Advanced_Chess