43. ...            K-B2
44.  R-Q8          Q-K2
45.  Q-R5ch       Resigns.

Loss of the Queen and mate in a few moves cannot be prevented.  Black has played the whole game practically with two pieces less, and the mate was really only a matter of time.

Game No. 12

White:  Teichmann.  Black:  Rubinstein.

Ruy Lopez (see p. 37).

1.  P-K4 P-K4 2.  Kt-KB3 Kt-QB3 3.  B-Kt5 P-QR3 4.  B-R4

By exchanging the Bishop White could not prove P-QR3 to be a lost move, for Black, by retaking with the QP, obtains open lines for Q and QB, and in addition to an easy development, retains two Bishops.  This is a set-off against a certain weakness in Black’s game, which may be found in the fact that after P-Q4, PxP, White has four pawns to three on the King’s side, while his three pawns on the Queen’s side are able to hold the four opposing pawns, one of which is doubled.  But this weakness can only tell in the end-game, which is too far ahead for practical purposes, and to which it may not come at all.  An example of the usual line of play will be found in Game No. 18.

4. ...  Kt-B3 5.  Castles B-K2 6.  R-K1 P-QKt4 7.  B-Kt3 P-Q3 8.  P-B3

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

Diag. 116

8. ...  Castles

In Capablanca’s opinion Black should not castle before White’s intentions in the centre have been made clear.  It makes a great difference whether White plays his QP to Q4 or to Q3 only.

If after 8. ...  QKt-R4; 9.  B-B2, P-B4 White plays:  10.  P-Q4, his intention is to move his pawn further to Q5 as soon as Black has castled, and then to attack on the King’s wing with QKt-Q2-B1-K3, P-KKt4 and Kt-B5.  For this reason Black should force White to disclose whether he intends to exchange his QP or to advance it to Q5.  In the latter case Black can refrain from castling altogether and counter-attack on the King’s wing, e.g., 10.  P-Q4, Q-B2; 11.  P-KR3, B-Q2; 12.  QKt-Q2, R-QB1; if now:  13.  P-Q5 then P-R3 followed by P-Kt4-Kt5 gives Black many chances.  If on the contrary 13.  PxP, then Black need no longer fear an attack on the King’s side after he has castled, as his Rooks will have a favourable opportunity for operating on the open Queen’s file.  However, there is still the disadvantage for Black of having advanced Queen’s side pawns, which are liable to attack (P-QR4).