Facing a little known international master, Fischer takes risks to keep the position dynamic and avoid drawish variations.
Zbigniev Doda-Robert Fischer
Havana 1965
1.Nf3 c5 2.g3 g6 3.Bg2 Bg7 4.O-O Nc6 5.c4 e6 6.Nc3 Nge7
This is Fischer�s favorite set-up against the English. In Petrosian-Fischer, USSR versus World match 1970, there now occurred 7.d3 O-O 8.Bd2 d5 and Black gains control of the center.
7.e3
White intends to play for d2-d4. This often leads to exchanges and drawish positions. A generation later, the pawn sacrifice 7.d4 would become popular for a while.
7�O-O 8.d4 cxd4 9.Nxd4 Nxd4 10.exd4 d6!?
Avoiding the drawish symmetrical lines after 10...d5.
11.d5 e5 12.b3 e4!?
Trying to sharpen the position, typical of Fischer's dynamic style. Now White will be able to move his Knight to d4, hitting the e6-weakness (which will result after Black has to play �f5). Black in the meantime is planning a pawn expansion on the Kingside and will move his Knight to e5 via g6.
13.Bb2 f5 14.Qd2 h6 15.Nb5
The Knight is heading to a strong post at d4.
15�Bxb2 16.Qxb2 a6
Forcing the Knight to a strong square, but Fischer probably did not like 16�g5 17.Qa3.
17.Nd4 g5 18.f3
A good move, removing the dominant e4-pawn.
18...exf3
The e-pawn wouldn�t survive long after 18�e3 19.f4.
19.Bxf3 Ng6 20.Ne6!
Another strong move. Now White will have a dominant pawn on e6 supported by a Bishop on d5.
20...Bxe6 21.dxe6 Qe7 22.Bd5 f4 23.Qg2 Rf6!?
Black sacrifices a pawn, banking his chances on the Kingside.
24.Bxb7 Raf8 25.Bd5
White wisely keeps his Bishop in play, rather than grab an unimportant pawn with 25.Bxa6.
25�Kh8
Removing the King from the d5-g8 diagonal, thereby freeing the Black Queen from blockading the e-pawn. Also, Black does not want the King on the soon-to-be opened g-file.
26.Kh1 Ne5
The Knight takes up a very strong post. Now Black has ideas of �f4-f3.
27.gxf4 gxf4 28.Qh3 f3 29.Rad1 Qh7 30.Rd4 f2 31.Rh4?
Too slow. Better is 31.e7 Qxe7 32.Rh4 followed by Rxf2. For example, if 32�Qh7, then 33.Be4, or if 32�Qg7, then 33.Rxf2.
31...Rg8
Now Black obtains counterplay. The threat is 32...Rg1+ 33.Rxg1 fxg1=Q+ 34.Kxg1 Qb1+.
32.Be4 Qg7
Threatening 33�Qg1+.
33.Bg2?
Stopping the threat of 33...Qg1+, but 33.Qg3 would have been much better. After 33...Qxg3 34.hxg3 Rxg3 the position is unclear.
33...Nf3!
The Knight makes a decisive entrance. Of course, 34.Bxf3 loses to 34�Qg1+.
34.Rh5 Nd2 35.Rxf2 Rg6
Of course not 35...Rxf2? 36.Rxh6+. Now White can do nothing against 36...Qa1+.
36.Rhf5 Qa1+ 0-1
37.Rf1 Nxf1 38.Rxf1 Qxf1+ 39.Bxf1 Rg1 is checkmate.