Parallel Universe Matches: Fischer-Karpov, Part II

As detailed in my previous blog, these are the games from the 1975 Fischer-Karpov match that didn't actually occur in our present timeline and therefore had to be dragged out of a nearby parallel universe for your enjoyment.

Game 3:

Fischer reveals a surprise defense to Karpov's 1.d4: the Queen's Gambit Accepted.  The game turns into a sharp affair where Karpov's three pawns compensate for a sacrificed piece but grant him no serious winning chances.

Game 4:

Fischer again surprises, this time with the advance variation of the Caro-Kann, and his ploy, after a display of exemplary endgame technique, finally pays off in the first win of the match.

Score, after four games:

Fischer: 1, Karpov 0