2.  P-QB4 PxP 3.  Kt-KB3 Kt-KB3 4.  P-K3 P-QKt4 5.  P-QR4

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

Diag. 37

If now Black answers PxP, White simply plays BxP and the P at R5 is lost very soon.  If Black plays instead:  5. ...  P-B3, White wins back his pawn with 6.  P-QKt3, PxKt P; 7.  PxP, PxP; 8.  BxPch by QxP, and moreover is much ahead with his development.

These considerations point to the conclusion that after 2.  P-QB4 there is no inducement for Black to take the pawn.  On the contrary, he will cover his centre pawn, which White wishes to tempt away, either with P-K3 or P-QB3.  The attempt to develop the Queen’s Bishop before playing P-K3 is not to be recommended, because the Q Kt’s pawn remains unprotected and open to an immediate attack by 3.  Q-Kt3.  Of the two remaining replies, 2. ...  P-K3 and 2. ...  P-QB3, I will first discuss the former, as being the more natural of the two, since P-QB3 does not fit into the scheme for opening the QB file for the Rooks.  White, on the other hand, can bring out his QB before playing P-K3, in this way: 

2.  P-QB4, P-K3; 3.  Kt-QB3, Kt-KB3; 4.  B-Kt5, and the game might proceed as follows:  4. ...  Q Kt-Q2. (Diagram 38.)

No fault can be found with this move, although it blocks the Bishop, since the latter can only be developed effectively at Kt2.  Moreover, the Knight at Q2 supports the projected P-B4.  White cannot win a pawn now with 5.  PxP, PxP; 6.  KtxP, because of KtxKt; 7.  BxQ, B-Kt5ch.  Therefore 5.  P-K3 must be played first, and after B-K2; 6.  Kt-B3, Castles; 7.  R-B1, P-QKt3; 8.  PxP, PxP; 9.  B-Q3, B-Kt2, all the pieces have found rational development.

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

Diag. 38