(1) Petrosian,T - Bronstein,D [E65]
Candidates Tournament Amsterdam (2), 1956



1.c4 Nf6 2.Nc3 g6 3.g3 Bg7 4.Bg2 0-0 5.Nf3 c5 6.0-0 Nc6 7.d4 d6 8.dxc5 dxc5 9.Be3 Nd7 10.Qc1 Nd4 11.Rd1 e5 12.Bh6 Qa5 13.Bxg7 Kxg7 14.Kh1 Rb8 15.Nd2 a6 16.e3 Ne6 17.a4 h5 18.h4 f5 19.Nd5 Kh7 20.b3 Rf7 21.Nf3 Qd8 22.Qc3 Qh8 23.e4 fxe4 24.Nd2 Qg7 25.Nxe4
Diagram White has achieved overwhelming superiority. Great outposts on e4 and d5 for the knights, command over the only open file, and a solid eye on the only two pawn weaknesses (f2 and b3). By contrast, Black's in a mess. The d6-entry square, the miserable Rb8, and how about that Bc8?

25...Kh8 26.Rd2 Rf8 27.a5
Now the backward b-pawn is fixed.

27...Nd4
But Black has one active piece!

28.b4 cxb4 29.Qxb4
White's queen enters the position. How about that d6 entry square!

29...Nf5 30.Rad1
Doubling on the open file.

30...Nd4
Black is reduced to shuttling the active knight between d4 and f5.

31.Re1 Nc6 32.Qa3 Nd4 33.Rb2
With the black knight on d4, white switches the rooks to the b-file.

33...Nc6 34.Reb1 Nd4 35.Qd6
Now Nb6 and Rb6 should decide.

35...Nf5
Diagram

36.Ng5??
Foiled by Black's only active piece!

36...Nxd6 0-1