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KtxKt

QxKt

38 Q-Kt6ch!

In view of the disorganized state of Black's game this move is decisive. As the student plays over the following variations, he should bear in mind that the weaknesses being exploited at this stage were created by Black's failing to play . . . P-K4 at the right time.

He has no good reply, for example:

I 21 . . . P-Kt3; 22 Q-B3, KPxP; 23 KPxP, QxKt; 24 P-Q6ch, R-B2; 25 QxKBP, R-Q2; 26 R-Kl, Q-K14; 27 RxB, QxB; 28 QxPch and wins (Dr. Lasker).

II 21 . . . P-Kt3; 22 Q-B3, B-B2; 23 Kt(2)-Q4. KPxP; 24 Kt-B5, QxP; 25 QxKBP, Kt-K3; 26 KtxP and wins.

Hi 21 . . . B-B2; 22 Kt(2)-Q4, KPxP; 23 Kt-B5, Q-Q2; 24 BxP, BxB (if 24 . . . P-Kt3; 25 Q-B3, BxB; 26 QxKBP); 25 RxB, PxR (if 25 . . . Q-Kl; 26 QxR); 26 RxR, Q-Kl; 27 Kt-R6ch, K-Rl; 2S Kt-B7ch and wins.

23 PxP

BPxP RxP

The exchange cannot bo saved. If 23 . . . B-B2 (on 23 . . . PxP, Dr. Lasker gives 24 B-R4, P-Kt3; 25 Q-R6, R-B2; 26 Kt-B5 etc.); 24 R-Kl, P-K4; 25 Kt-B5, Q-Kl; 26 B-R4 etc,

24 BxR RxB

25 Q-K1! and White won through the advantage of the exchange.

The next article will deal with another advantageous aspect of the powerful Pawn center: the origin of passed Pawns from simple Pawn preponderances.

Seattle City Championship January 21, 1938

(White to move)

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