Fischer�s amazing 28th move made this game famous.
Bobby Fischer- Oscar Panno
Buenos Aires 1970
1.e4 c5 2.Nf3 e6 3.d3
Of this, Fischer writes: ``This used to be my favorite. I thought it led to a favorable variation of the King's Indian reversed, particularly after Black has committed himself with ...e6.'' (My 60 Memorable Games: Simon & Schuster 1969).
3...Nc6 4.g3 g6 5.Bg2 Bg7 6.O-O Nge7 7.Re1 d6 8.c3 O-O 9.d4 cxd4
Better was 9...b6 to keep the center from being closed.
10.cxd4 d5 11.e5
Now White will be able to attack on the kingside without worrying about counterplay in the center.
11...Bd7 12.Nc3 Rc8 13.Bf4 Na5
Possibly 13...f6 should be played to blunt White's coming kingside attack.
14.Rc1 b5 15.b3!
A good defensive move that slows Black on the queenside. Black's pieces are not in good position to take advantage of the resulting weaknesses at c3 and a3.
15...b4 16.Ne2 Bb5 17.Qd2 Nac6 18.g4
White starts moving his pieces toward the kingside. With his last move White creates a square for the Knight on g3. 18...Bxe2 should now be played, although this would give up important squares that the Bishop controls.
18...a5? 19.Ng3 Qb6 20.h4 Nb8
Black will maneuver this Knight to f8 for defensive purposes.
21.Bh6
Exchanging Black's most important defensive piece and creating dark square weaknesses at f6 and h6. Nh5 becomes a possible threat.
21...Nd7 22.Qg5 Rxc1 23.Rxc1 Bxh6 24.Qxh6 Rc8 25.Rxc8+ Nxc8
26.h5
The loosening of the g6 square will later play a decisive role.
26...Qd8?
Now White will be able to finish the game with a very beautiful combination. Better is 26...Nf8. White would still have a very big advantage. One plan is to play 27.Qf4 followed by h6 and Ng5. Black will be forced to play ...Qe7 after which White can seize the c-file with Qc1. He could then start a pawn storm with f4-f5.
27.Ng5 Nf8 28.Be4!
A very elegant move which at first looks like a typo. White intentionally places a piece en prise, as Black will be checkmated if he captures the Bishop: 28...dxe4 29.N3xe4 followed by 30.Nf6+. Thus the Bishop will play a decisive role on the b1-h7 diagonal.
28...Qe7
Perhaps the best defense is 28...Be8, protecting the vulnerable pawns on f7 and g6. If White retreats the Bishop with 29.Bb1, Black gets counterplay after 29...Qc7. Instead, Fischer probably intended 29.hxg6 hxg6 (29...fxg6? 30.Qxf8+) 30.Nh5 gxh5 31.Nh7 (31.Bh7+ Nxh7 32.Nxh7 f6 is unclear) 31...Nxh7 32.Bxh7+ Kh8 33.Bd3+ Kg8 34.Qh7+ Kf8 35.Qh8+ Ke7 36.Qf6+ Kd7 37.gxh5 and White wins because the h-pawn is unstoppable. For example, 37...Qb6 38.h6 Qxd4 39.Bb5+ or 37...Ne7 38.h6 Ng8 39.Qxd8+ Kxd8 40.h7.
29.Nxh7! Nxh7 30.hxg6 fxg6
Question: What does White play against 30...Nf8. See the answer below.
31.Bxg6
Threatening both 32.Bxh7+ Qxh7 33.Qxe6+ and 32.Nh5.
31...Ng5
Or 31...Qg7 32.Bxh7+ Kh8 33.Qxg7+ Kxg7 34.Bb1 Ne7 35.f4 Nf6 36.Kf2 with an easily won endgame.
32.Nh5 Nf3+ 33.Kg2 Nh4+ 34.Kg3 Nxg6 35.Nf6+ Kf7 36.Qh7+ 1-0
If 36...Kf8, then 37.Qg8 mate.
Answer to question: 31.g7 wins immediately.