|---------------------------------------| 3 | | | ^P | | | ^Kt| | | |---------------------------------------| 2 | | ^P | | | | ^P | ^P | ^P | |---------------------------------------| 1 | ^R | ^Kt| ^B | ^Q | | ^R | ^K | | --------------------------------------- A B C D E F G H

Diag. 93

In this case White does not take precautionary measures, and succumbs in a surprisingly short time.

1. ...  Kt-B3; 2.  PxP?  With this move White opens the diagonal for Black’s KB for no apparent reason. 2. ...  QKtxP; 3.  KtxKt?  Instead of providing for the defence of his King’s wing, White exchanges one of the King’s side pieces, 3. ...  QxKt; 4.  Kt-Q2, BxP!  White has provoked this sacrifice by his last two moves.  The KBP is pinned, and the Q enters by way of her Kt6, the protection of which was given up by pushing on the RP.  The rest is easy; 5.  PxB, Q-Kt6ch; 6.  K-R1, QxPch; 7.  K-Kt1, Kt-Kt5; 8.  Kt-B3, Q-Kt6ch; 9.  K-R1, BxP; 10. resigns.

Diagram 94 shows a position from a game Marshall-Burn (Ostend, 1907).  Strong in the knowledge that the Black Queen’s side pieces are not developed, and can only with difficulty be of assistance in the defence of the King’s side because of their limited mobility, White takes advantage of the weakness created by the advance of the Black KKt pawn to his third, and initiates an immediate assault on the King’s stronghold.

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

Diag. 94

1.  P-KR4, R-K1; 2.  P-R5.  This forces open the Rook’s file.  If the pawn were still at Kt2, Black would simply let White push on to R6 and then reply with P-KKt3. 2. ...  KtxP; 3.  RxKt, White concludes the game in brilliant style.  Black’s wrong development has given a welcome opportunity for sacrificial combinations.  Now the KB has an open diagonal, the pawn position is broken, and White’s Q and R have no difficulty in using the Rook’s file for a deadly attack. 3. ...  PxR; 4.  BxPch, KxB; 5.  Kt-Kt5ch, K-Kt3 (if K-Kt1, then 6.  QxP, Kt-B3; 7.  QxPch, K-R1; 8.  Castles, etc.); 6.  QKt-B3, P-K4; 7.  Kt-R4ch, K-B3; 8.  Kt-R7ch, K-K2; 9.  Kt-B5ch, K-K3; 10.  KtxBch, K-K2; 11.  Kt-B5ch, K-K3; 12.  P-Q5ch, KxKt; 13.  QxPch, K-K5; 14.  Castles, followed by P-B3 or R-Q4 mate.