DrGridlock: The position after White's 34 Rf4 is striking. A cursory glance shows white's en-prise pawn on e5. Black has at least 3 different ways to win it. Rybka gives -
Qh2+, be2 g5, rxc8 rxc8, rf1 qxe5 (-1.09)
Bb7, rxc8 bxc8, bc4 g5, rf1 qxe5 (-1.00)
Qg2+, be2 qd5, bf3 qxe5 (-.84)
Black's game continuation, bringing the white Queen to c1 after the rook exchange, allows the queen to move to c7 and protect the e5 pawn if it is attacked, and is one of the few black continuations that actually saves the e5 pawn.