6.  P-K3               Castles
7.  Q-B2               P-B4

White intends to castle on the Queen’s side, and to follow this up with a storm by the King’s side pawns.  Although Rubinstein has on many occasions been successful with this form of attack, it is open to criticism.  For, where Kings have castled on different wings, the attack on the King which has castled on the Q side should be more successful.

---------------------------------------
8 | #R |    | #B | #Q |    | #R | #K |    |
|---------------------------------------|
7 | #P | #P |    | #Kt| #B | #P | #P | #P |
|---------------------------------------|
6 |    |    |    |    | #P | #Kt|    |    |
|---------------------------------------|
5 |    |    | #P | #P |    |    | ^B |    |
|---------------------------------------|
4 |    |    | ^P | ^P |    |    |    |    |
|---------------------------------------|
3 |    |    | ^Kt|    | ^P | ^Kt|    |    |
|---------------------------------------|
2 | ^P | ^P | ^Q |    |    | ^P | ^P | ^P |
|---------------------------------------|
1 | ^R |    |    |    | ^K | ^B |    | ^R |
---------------------------------------
A    B    C    D    E    F    G    H

Diag. 153

This is much stronger than P-Q Kt3 and B-Kt2, as then the Black Queen cannot participate in the attack quickly enough.  As pointed out before, speed is the first consideration for the attack, whenever the Kings have castled on different wings.  An interesting counterpart to the present game is found in a game won by Rubinstein from Teichmann (Match, Vienna, 1908) 7. ...  P-QKt3; 8.  PxP, PxP; 9.  B-Q3, B-Kt2; 10.  Castles QR, P-B4; 11.  P-KR4, P-B5? (the only hope lay in the opening of the QB file); 12.  B-B5, R-K1; 13.  BxKKt, KtxB; 14.  P-KKt4, B-Q3; 15.  P-Kt5, Kt-K5; 16.  P-R5, Q-K2; 17.  QR-Kt1, P-QR3; 18.  BxPch!, KxB; 19.  P-Kt6ch, K-Kt1; 20.  KtxKt, PxKt; 21.  P-R6, P-B31 22.  PxP, PxKt; 23 R-R8ch, KxP; 24.  R-R7ch, and Black resigned a few moves later.

8.  Castles Q-R4
9.  PxQP

White loses time in the centre.  It was imperative to proceed at once with P-KKt4 followed by BxKt, P-Kt5 and P-KR4.

 9. ...  KPxP

10.  PxP KtxP
11.  Kt-Q4 B-K3
12.  K-Kt1

It would be too risky to leave both King and Queen on the QB file.

12. ...                QR-B1
13.  B-Q3              P-KR3

The threat was:  BxKt and BxPch.  Had White played P-KKt4 and P-KR4 instead of effecting exchanges in the centre, Black would not have been able to afford this weakening move.  But now Black wins the game on the other wing, before White is able to make use of the weakness thus created.

14.  BxKt BxB 15.  B-B5 KR-Q1 16.  BxB PxB 17.  Q-Kt6

The Queen must leave the QB file without delay, as Kt-K5 is threatened.  Black’s game is already superior; with the exception of the Queen, White has no piece available for the attack on the opposing King.