I. INTRODUCCIÓN
I.2. ETIOPATOGENIA
I.2.4. Factores metabólicos
I.2.4.1. Obesidad
Pa lma de M a l lorca 1 968 Q U E E N'S I N D I A N D E F E N S E Tigran Petrosyan
Soviet U nion White
1 P-Q4 2 P-QB4 3 N-KB3
Bent Larsen Denmark Black N-KB3
P-K3 This move might mean one of a num
ber of things. For some, it is partly a future offer of a draw, a sign of a placid mood. As will be seen soon, here it is something else, and not only an escape from the crucial lines of the Nimzo-In
dian (many masters have a profound be
lief in the soundness of that defense for Black ) . Petrosyan wants simply to avoid Larsen's favorite line in which he feels very much at home and to give th'e game another course in which the situation will be the opposite.
3 . . . . P-QN3
4 P-QR3!
Petrosyan has used this idea before, but only after 4 N-B3, B-N2. The idea looks at first like a loss of tempo because it does not pay to avoid the Black . . . B-QN5 at such a dear price in the open
ing. But, though the move 4 P-QR3 looks
inferior to the usual, developing 4 P-KN3, Black must do something immediately against the advance, P-Q5, lest he fall into a cramped position.
It is obvious that, with this early preparatory move, Petrosyan aims to direct the game only along the line which simply ignores his opponent's intentions.
And, indeed, he has no encouraging ex the advantage] (Petrosyan-Szabo, Por
toroz Interzonal 1958) : remembered Petrosyan's excellent vic
tory against Schmid's Semi-Benoni at Zurich 1961. Also, 5 P-K3 is a partial
traps after 9 P-K4. Consequently, he waits patiently till every thing is suitably prepared for the decisive advance in the center.
9 . . . . P-Q3
Now is not the time for 9 . . . P-KR3 10 B-R4, P-KN4 11 B-N3, N-R4 because of 12 B-Q6. And, with his next move, White makes his Queen Bishop secure.
10 N-Q2 P-KR3
11 8-R4
The time has come to think of the advantages and disadvantages of those interpolated, Queen-side moves. The White Pawn on QR3 guards QN4 against the possible advance of Black's Pawn majority on that side. Black's Pawn on QN3 has opened a diagonal for the Queen Bishop which diverts it from the other, more useful direction.
11 . . . . N-R3 This move corresponds to the sharp style of Larsen who seeks an immediate counter chance in attacking the White Queen Pawn. But his plan does not suit the true soul of the position. The text would be possible even with a Pawn on QN2, and there is but one method to make good the wasted tempo with . . . P-QN3 ; that is by 11 . . . B-R3 to dimin
ish the number of pieces and so . make life easier for Black who has the more
cramped position. Black's stratel'!:y here will fail .ts soon as the Queen Pawn is protected by P-K4-and that will not be long as White will now provide addi
tional cover on his King file.
12 8-K2
13 P-K4 N-82
White has spent two tem pi with that Pawn ; but, in the meanwhile, Dlack's pieces have moved rather ineffectually and White has been building an ideal structure against the Semi-Benoni system.
1 3 . . • . P-QN4 This is usually a thematic move which actuates the Queen-side Pawn majority.
But it is of lesser effect now as Black has spent two tempi on this advance and White's Queen Rook Pawn is a good pro
tector of the position of his Queen.
14 0-0
14 NxP, NxN 15 BxN is of no use as 15 . . . R-N1 regains the Pawn for Black.
Nor is 14 BxP, NxB 15 NxN, B-R3 to be recommended either.
14 . . . . Q-Q2
The Queen evades the pin as there is a constant threat of P-B4 and P-K5.
15 Q-82
An instructive approach to the task : before taking action, White mobilizes all the rest of his pieces into the crucial area of the board.
15 • . . . R-K1 1 6 K R-K1
This choice of Rooks is excellent; the other Rook may be needt:>d to support the Queen Pawn.
16 . . . . 8-N2
Now the only visible method of dimin
ishing the danger of the central break by P-K5 is to put under fire the Pawn on Q5.
1 7 P-K R3
The text is not negligible : it takes a square from Black's King Knight and
prepares P-B4.
17 . . •• P-QR3
Energetic advance of the Pawns is the only counter chance left : 17 . . . P-B5 18 P-B4, P-QR4 19 B-B3, N-R3 ; but, after 20 P-QR4 ! N-N5 21 Q-N1, N-Q6 22 PxP ! White retains his advantage in the complications, too. Now, however, Black will be too slow to re-act against the central break by P-K5 after a few moves.
18 P-84 P-85
Black has lost one tempo and the last opportunity for action on this side.
19 8-83 P-K R4
Black's King Knight lies exposed to attack by White's center Pawns but can
not be moved yet, by 19 . . . N-R2, be
cause of 20 B-N4.
� QR-Q1 N-R2
21 P-K5!
Here is the typical blow which means the full triumph of White's strategy in such a system. The central files and diagonals will be open for the decisive
penetration of White's pieces into the enemy camp.
21 •. •.
22 N/2-K4 PxP
Q-84 The deadly menace was 23 N-B5, 24 NxB and 25 P-Q6. White's following move creates a similar threat in respect to Q6. The end is near.
23 Q-B2 24 8xR 25 Q-N6
26 N-BS
Q R-Q1 RxB Q-B1
White offers Black no chance for the sacrifice : 26 N-Q6, RxN 27 QxR, N-Kl.
26 . . . . P-K5 Here Black resorts to desperation tactics. Neither 26 . . . N-R1 27 Q-R7 nor 26 . . . B-B1 27 P-Q6, BxB 28 PxN, RxR 29 RxR, BxR 30 Q-N8 avails.
27 Qx 8 PxB 30 N-N7 N-K3 28 QxQ RxQ 31 P-Q7 R-N 1 29 P-Q6 8-81 32 RxN Resigns Black's position has been completely destroyed.