George Duke wrote on Tue, Aug 7, 2012 06:22 PM UTC:
Http://www.chessgames.com/perl/chessgame?gid=1044724, Game 11 played 6.August.1972.
Option I. 22 c5 Bb5.
Option II. Fischer offering Queen trade is saying Queen will not figure in his mating
combination. Instead, 22 c5 Qd8 puts Black Queen central to some Pawn
combination in the offing (why rush it?), and Black seems to have the
initiative where neither did before. 'fxg4' is real trouble if done after the right Queen position is found, whereas 'cxd6' is not such a threat. In the actual game fxg4 was done and cxd6 was never done, White winning anyway without 'cxd6' because of Fischer's faulty haste. So after 22 c5 Qd8 23 Be2 may be the best White can do now, at least preventing 'fxg4'.