(1) Adorjan,A - Perecz,L [C69]
Hungary, 1975



1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6
The Spanish Exchange

4...dxc6
White exchanges the light-squared bishop early on to nick the black pawn structure

5.0-0
Threatening Nxe5 [5.Nxe5 Qd4 ]

5...Bg4
Pinning the Nf3. ...f7-f6 is the more common response

6.h3 h5 7.d3
[7.hxg4?? hxg4 8.Nxe5 Qh4 9.f3 g3 ]

7...Qf6
Applying more pressure to the pinned Nf3

8.Nbd2
[8.hxg4 hxg4 9.Ng5 Qh6 10.Nh3 Qh4 ]

8...Ne7
idea Ng3-f4 or h4

9.Re1 Ng6 10.d4
[10.hxg4 hxg4 11.Nh2 Bc5 12.Ndf3 gxf3 13.Nxf3 Rh5 14.Be3 Nf4 15.Bxc5 Qh6-+ ]

10...Bd6
[10...0-0-0? 11.hxg4 hxg4 12.Nh2 Rxh2 13.Qxg4+ check!]

11.hxg4 hxg4 12.Nh2
[12.Nxe5 Qh4 13.Kf1 Nf4 ]

12...Rxh2
[12...exd4 13.e5 Bxe5 14.Nxg4+- ]

13.Qxg4 Rh4
[13...Qh4!? ]

14.Qf5
recommended by Fischer in his 60 Memorable Games

14...Ne7
[14...Rf4 15.Qxf6 Rxf6 16.Nf3 Kd7 17.Bg5+/= ]

15.Qxf6 gxf6 16.Nf3
White clearly has the better pawn structure

16...Rh5 17.Be3
Connecting the rooks and aiming to exchange the rooks on h1 after g3 and Kg2.

17...0-0-0 18.g3 Rdh8 19.dxe5 fxe5 20.Kg2 Kd7
Anticipating the endgame, bringing the king into the center

21.Rh1 Rxh1 22.Rxh1 Rxh1 23.Kxh1
The enfgame in the Spanish Exchange favors white because only white can create a passed pawn.

23...c5 24.Kg2 Nc6 25.c3
Stopping Nd4

25...b5 26.Nd2 c4 27.f4
idea f5 and g4-g5

27...exf4 28.gxf4 f6 29.Kg3 Ne7
To prevent Kg4-f5

30.Kg4 Ke6 31.Nf3 c5 32.f5+ Kd7 33.Bf4 Nc6
Aiming for a blockade on e5

34.Bxd6 Kxd6 35.Kf4 b4
Diagram A typical endgame in the Spanish Exchange. White has all the chances

36.e5+! fxe5+
[36...Nxe5 37.Nxe5 fxe5+ 38.Ke4 a5 39.f6 Ke6 40.f7 Kxf7 41.Kxe5+- ]

37.Ke4
Any move by the Black king of knight cedes the e5-pawn

37...a5 38.Nd2 a4 39.Nxc4+ Ke7 40.a3 bxa3 41.Nxa3 Kf6 42.Nc4 Ne7 43.Ne3
[43.Ne3 Nc6 44.Nd5+ Kf7 45.Nb6 and black's queenside pawns both fall.] 1-0