So far a very well-known variation of the Ruy Lopez. In fact, they are the moves of the Janowski-Lasker game in Paris, 1912.
| 14. Q - Q 3 | P - Kt 3 |
Let us suppose the game went on, and that in some way White, by playing one of the Knights to Q 4 at the proper time, forced the exchange of both Knights, and then afterwards both the Bishops were exchanged, and we arrived at some such position as shown in the following diagram. (I obtained such a position in a very similar way once at Lodz in Poland. I was playing the White pieces against a consulting team headed by Salwe.)
Now we would have here the case of the backward Q B P, which will in no way be able to advance to Q B 4. Such a position may be said to be theoretically lost, and in practice a first-class master will invariably win it from Black. (If I may be excused the reference, I will say that I won the game above referred to.)
After a few moves the position may be easily thus:
The Black pieces can be said to be fixed. If White plays Q - Q B 3, Black must answer Q - Q 2, otherwise he will lose a Pawn, and if White returns with the Queen to Q R 3 Black will have again to return to Q Kt 2 with the Queen or lose a Pawn. Thus Black can only move according to White's lead, and under such conditions White can easily advance with his Pawns to K B 4 and K Kt 4, until Black will be forced to stop P - B 5 by playing P - K B 4, and we might finally have some such position as this:
Example 66.