Time in chess means deploying your forces to an area of the board faster than your opponent. In this game Fischer gains an advantage in time and never looks back.
Vassily Smyslov-Robert Fischer Palma de Mallorca interzonal 1970
1.c4 g6 2.Nc3 Bg7 3.g3 c5 4.Bg2 Nc6 5.b3 e6 6.Bb2 Nge7 7.Na4
Trading off Black's powerful Bishop, but losing a lot of time in the
process.
7...Bxb2 8.Nxb2 9.e3?!
Because of the time White has already lost, he needs to catch up
in development. Better is 9.Nf3.
9...d5 10.cxd5
Smyslov-Tal, USSR 1964 continued 10.Nf3 Nf5 11.O-O b6 12.Na4
Bb7 13.cxd5 exd5 14.d3 Qf6 with a slight advantage for Black.
10...Nxd5 11.Ne2 b6 12.d4?
It's not good for White to open up the position so soon like this, because his King is still in the middle of the board. Better is 12.O-O Ba6 13.d3.
12...Ba6!
Fischer finds very powerful squares for his pieces.
13.dxc5
Smyslov was probably expecting Black to recapture the pawn with 13�bxc5. However, Fischer has something else in mind.
13�Qf6!
White has prematurely opened up the position and Fischer takes advantage of this. He gains more time by attacking the loose Knight at b2. In chess, the smallest event can have great significance. This sacrifice by Fischer of a lowly pawn will echo to the end of the game.
14.Nc4 Nc3
This Knight locks Smyslov in a chokehold. He must immediately destroy it.
15.Nxc3 Qxc3+
Now White must forego castling and move his King. If 16.Nd2, then 16�Nb4 is overwhelming.
16.Kf1
White is behind in development, deprived of the right to castle, and
will be subjected to constant pressure along the open files.
16�Rfd8
While Smyslov's Rook on h1 is shut in by his King, Fischer quickly deploys a Rook of his own to an open file and by attacking Smyslov's Queen gains even more time. If Fischer had tried to grab pawns instead of stacking up small advantages, he would've fallen into a deep and deadly trap: 16�Bxc4+ 17.bxc4 Qxc4+ 18.Kg1 Qxc5? 19.Rc1 winning the Black Knight.
17.Qc1 Bxc4+ 18.bxc4 Qd3+
Driving Smyslov's King deeper into the corner and the h1-Rook has been buried alive.
19.Kg1 Rac8 20.cxb6 axb6
Fischer has sacrificed a pawn, but this has been well worth the advantage that he has obtained in time. Black has a winning advantage because all his pieces are active, but White's King Rook is blocked by his King.
21.Qb2 Na5
Watch how Fischer attacks White's weaknesses before White can get
his pieces organized. The first target is the lonely pawn on c4.
22.h4
White tries to get his King Rook into play. Also threatened is h4-h5-h6. However, 22.Bf1 may be better. Worse is 22.Qxb6 Nxc4 23.Qb3 Qd2 because then Fischer could quickly organize his pieces for an onslaught against the weakness at f2.
22...Nxc4 23.Qf6 Qf5!
Trading off White's only active piece. Fischer played this move instantaneously.
24.Qxf5 gxf5 25.h5
White wants to develop is Rook on the fourth rank. Worse is 25.Kh2
Rd2 26.Rhf1 Ne5 followed by ...Rcc2.
25...Rd2 26.Rc1 Rc5
Removing the pin. Worse is 26...Rxa2 27.Rh4 b5 28.Bf1 Ra4 29.Rd4
and Black is tied up.
27.Rh4
Finally the buried Rook claws its way back from the grave.
27�Ne5
Fischer has been working all game to gain time on his opponent. That work pays off handsomely now.
28.Rxc5 bxc5 29.Ra4 c4
One of the most important principles of the endgame is that passed pawns must be pushed.
30.h6 Kf8 31.Ra8+
If 31.f4, then 31...Ng4 32.Rxc4 Rxg2+.
31...Ke7 32.Rc8
Smyslov, one of the greatest endgame players ever, knows that a Rook is best placed behind a passed pawn. He has halted Fischer's c pawn, but to do so he had to abandon his own pawn.
32�Rxa2
Now Black mops up on White's weak pawns.
33.Bf1 Rc2 34.Kg2 Ng4 35.Kg1 Rxf2 36.Bxc4 Rf3 37.Kg2 Rxe3
38.Rh8 Nxh6 39.Rxh7 Ng4 40.Bb5 Rb3 41.Bc6 Rb2+ 42.Kg1 Ne5 43.Ba8 Rb8
44.Bh1 0-1