Here is something for Joe down at the local Chess club - an amazing game by Rashid Gibiatovich Nezhmetdinov. The position reached after 11. ... Bf6 had arisen before in one or two games which had ended in quick draws. Apparently Nezhmetdinov thought for a very long time, and decided not to go for the draw, but sacrificed his queen ... you need to play over this game slowly to appreciate it ...