Brown: Assuming the game score is correct, I don't see how white survives after 41..Rf3.
Bronstein, in Sorcerer's Apprentice, discussed his strategy against the early computer programs: sacrifice material because it throws off their evaluation functions. While everyone was trying to close the position against chess programs, Bronstein was playing games like this.
The strategy scored mixed results, but certainly led to some interesting chess.
Here both black and white do not play optimally after an "interesting" position occurs by move 20. White needs to develop the K-side, and has a bishop stuck out of play on a7. In turn Black is down 3 pawns and the exchange, but has good squares and pressure for all his pieces.
Bronstein could have considered 24..Qg6 instead od 24..Ne5. Nothing will stop the latter, and Black will have continued pressure by controlling the h7-b1 diagonal. 26..Qe4, for the same diagonal control, can be recommended.
After missing many opportunities to give back material with a superior game, white blows a fuse with 35.Rb5?? White would have been better off with 35.Ne2.
Thank you, Mr. Bronstein!