Mm mm tu m mm wmmmm

We now have our pawn chain, and the Black base, the pawn on d6, already seems exposed from the side, just as if the typical attack had been made on it by c4-c5-cxd6 with Black recapturing cxd6.

16.Qd3 Qd7 17.Nd2

relationship must exist throughout the remainder of the Queenside. Were this not the case then White's 18.a4 must have been wrong, and that is unlikely. Was he in fact not justified in supporting the Knight move to c4? But that would be absurd. No, 20.Nc4 was indicated, similarly 18.a4. Therefore 20...b5 must have led to a less favorable position for Black. The course of the game proves the correctness of this judgment.

22...Nc8 would perhaps have been better.

The Knight is already being sent forward to attack the exposed base.

To safeguard the Knight's position at c4.

18...Bxg2 19.Kxg2 Reb8 20.Nc4 b5 21axb5 Qxb5 22.Ra3

In this and similar positions the question arises, which pawn is weaker, the White b-pawn or the Black a-pawn? In the present case this problem could be solved by logical deduction. Since the square d6 is weaker than d5, a like

23.Rta1 a6 24.Bc1 Rb7 25.Be3f626.f3

If Black could manage to play ...f5, his position would not be so bad. But this is out of the question and he is besieged.

Threatening 28.Nxd6

27...Nc8 28.Nd2 Qb4 29.Qc4 Qxc4 30.Nxc4 Rab8 31.Nd2 Rc7 32.Rxa6

The masterly and varied uses made of the points d2 and c4 will be noted.

32...RC2 33.R6a2 Rxa2 34.Rxa2

The rest of the game, which consists of bringing the King to the center followed by an advance in dose order of the King, Bishop, and Knight is easily understood.

There followed:

34...Be7 35.Kf2 Kf7 36.Ke2 Ke8 37.Kd3 Kd7 38.KC3 Bd8 39.Nc4

c3 is our shelter.

39...BC7 40.g4 Bd8 41.Ra6 Bc7 42.h4 Bd8 43.h5 Bc7 44.b4 Rb7 45.Ra8 Kd8 46.Kb3 Rb8 47.Rxb8 Bxb8 48.b5 Ne7

49.b6f5

There is nothing left to hope for.

50.gxf5 Ng8 51.Bf2 Nf6 52.Bh4 1-0

In the following game the transference of the attack from one point to another is carried out

Game 24

Maroczy-Suchtlng

Barmen, 1905

1 .d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg3 Nbd7 5.e3 Be7 6.Nf3 O-O 7.Qc2 c6 8.a3 Nh5

9.h4f5

9...f6 would be answered by 10.Bd3.

10.Be2 Ndf611.Ne5! Bd7 l2.Qd1 Be8 13.C5

Weaving the chain.

Nobody knows better than Maroczy how to prevent freeing moves (here ...f4).

I5...axb4 I6.axb4 Rxal l7.Qxal Ne4 18.g4l Nxc3 19.Qxc3 Nf6

Threatens 21.Ng6 and thereby gains time tor 21 .g5

The exchange would make it more difficult to break through.

Only now does play begin in the real theatre. The idea is naturally to attack the base c6 by b4-b5.

24...BC7 25.Ra7 Re8 26.Bxc7 Qxc7 27.f4

Stops all attempts to break through by

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