AAsbury Park Press Asbury Park, New Jersey Sunday, October 24, 1971 - Page 86
The Chessboard: Fischer Loses in Gruenfeld
In the second game of his candidates' match against Tigran Petrosian of the Soviet Union, United States Grandmaster Bobby Fischer set up his favorite defense — the Gruenfeld — to the Russian's 1. P-Q4, but at a critical point failed to find the best continuation and lost in 32 moves.
The line selected by Fischer has Black giving up a pawn—in effect making gambit of the Gruenfeld—with promising attacking chances. Fischer has played the defense with good results over the years, but in this case he allowed a simplification that turned quickly to White's advantage.
Petrosian's victory in this game evened the score of the match at 1-1. Here is the score:
GRUENFELD DEFENSE
Petrosian(White) Fischer(Black)
4. Bf4 (… This method of opposing the Gruenfeld appears to be the most enterprising at White's disposal.)
5. … c5 (Offering up the queen bishop's pawn for an attack.)
7. … Ne4 (A sharp reply and risky enough to appeal to one of Fischer's attacking inclinations. Now came 8. PxP against Hort in the 1970 Interzonal, Reshevsky replied 8. N-B3 and there followed 8. … NxN, 9. PxN, BxPch; 10. N-Q2 B-K3; 11. PxP BxQP; 12. P-K4 BxRP; 13. R-R P-K4; 14. B-B4 and equality for White was several moves distant) NxN (this continuation casts some doubt on the validity of White's last move) 9. Q-Q2, QxRP; 10. PxN Q-R4 after the exchange of queens, White would have little to fear. 11. B-B4 and Black replied).
11. … Nd7 (Now it appears that Black will regain his lost pawn with 12. NxP with a satisfactory position).
12. … Ne5 (But this is weaker and allows the ensuing simplification with advantage to White.)
13. … Bf5 (Apparently overlooking White's reply.)
14. Bxe5 (With this exchange and the one that follows, White demolishes Black's layout, gaining a decisive edge. Now there followed 14. … Bxe5 15. Nd4 Qxc5 16. Nxf5 gxf5 (now Black is left with fatally weakened kingside pawns and the edge of his attack has been blunted); 17. O-O Qa5 18. Qc2 f4 (seeking additional scpae for his bishop); 19. c4 fxe3 20. c5 Qd2 (20. … PxPch; 21. QxP would lay the Black king open to a devastating attack); and White played 21. Qa4+ Obviously, the balance of power has slipped over to White.)
24. … (Petrosian's flair for defensive play is well displayed here.)
25. fxe5! (White gives up the exchange for a final, decisive assault.)
27. … f6 (Black is the exchange and a pawn ahead, but his king is defenseless against White's attack. Now came 28. Qb3 Kg7 29. Qf7+ Kh6 30. dxe7 f5 31. Rxf5 Qd4+ 32. Kh1 Resigns
Tigran Vartanovich Petrosian vs Robert James Fischer Fischer - Petrosian Candidates Final (1971), Buenos Aires ARG, rd 2, Oct-05 Gruenfeld Defense: Brinckmann Attack (D82) 1-0 https://www.chessgames.com/perl/chessgame?gid=1044714
