I've seen it beaten before. It was an NM. Happened just a few nights ago.
Defeat the Impossible Computer?

It is NOT impossible to beat the computer! Many examples of that on this site.
Could you or somebody else please post one of them? I'm having a hard time imagining how that thing can lose.

The computer has a games archive like everyone else. Here is a game from it's archive where it loses to a 1663 rated player.

WOHOO I FINALLY BEAT IT!!!!! This feels even better than watching the Mavs vanquish the Heat!
You have no idea how many times I've tried to beat this monster, but it finally happened!!
Congratulations, buddy. Although in game from post #6 White is a beast (and crafts most of his developing moves on consecutive threats upon the enemy queen in a beautiful sequence), you completely controlled the endgame - keeping the enemy king where he deserved with no chance of recovery.
Has anybody ever been able to beat the chess.com computer on impossible? I've drawn against it, but never beaten it.