This... is quite amazing
600 moves in amazing 1 min bullet game, no increment.

Welcome 64GT, have a seat, soda and fries are available. Lessons covering pre-move practice to achieve 10 premoves/sec to follow.

Apols, its the boy who cried wolf.
Technically attainable?? needs premoves at the unthinkable rate of 10/sec from both and incredible efforts to avoid repetition/mate.
Heres 193 moves, maybe >3 premoves/sec, quite an achievement.
Actually, that's the normal speed for premoves not an unthinkable speed (they take zero seconds because the server already has your move, but the server docks you a nominal 0.1s). What is implausible is for two players to each manage six hundred premoves in a row. Also, to be pedantic, the player of white would lose on time without their 600th move being played, even if they had managed to play every one as a premove! Given that 193 moves only cost 19.3 seconds as premoves, that means about 35 seconds was spent non-premoving, which ain't much
Still impressive to me!
A noteworthy point is that the computer cheats. While premoves by the human all cost 0.1 seconds, it is very clear that the computer makes many moves in less than 0.1 seconds.

my strategy is take the king out for a walk. https://www.youtube.com/watch?v=2WOWxjesTFY
it confuses the opponent.
Apols, its the boy who cried wolf.
Technically attainable?? needs premoves at the unthinkable rate of 10/sec from both and incredible efforts to avoid repetition/mate.
Heres 193 moves, maybe >3 premoves/sec, quite an achievement.
http://www.chess.com/livechess/game?id=1076720927