Over 250 moves.
The longest chess game is 269 moves (I.Nikolic - Arsovic, Belgrade 1989) and it ended in a draw.
Im not to sure, but my longest ever one lasted about 1 hour...
The first game of chess was played in India.
The "Immortal Game" - see related link below .
Chess with spacetime? I doubt it.
The longest chess game was 5 days long.
The longest game is 31 innings. I think that is like 8 hours. (Soccer is awesome)
We havnt finished yet..
Well, it could last forever.