If P × R, R × R; followed by R - K R 8 winning,

10. ........ R × R P

and Black won after a few moves.

Example 57.—Another good example, in which is shown the advantage of the greater mobility of the pieces in an ending, is the following from a game Capablanca-Kupchick played at the Havana Masters Tournament, 1913. The full score and notes of the game can be found in the book of the tournament.

White's only advantage in the above position is that he possesses the open file and has the move, which will secure him the initiative. There is also the slight advantage of having his Pawns on the Queen's side united, while Black has an isolated Q R P. The

proper course, as in the previous ending, is to bring the Rooks forward, so that at least one of them may be able to shift from one side of the board to the other, and thus keep Black's Rooks from moving freely. What this means in general theory has been stated already; it really means: keep harassing the enemy; force him to use his big pieces to defend Pawns. If he has a weak point, try to make it weaker, or create another weakness somewhere else and his position will collapse sooner or later. If he has a weakness, and he can get rid of it, make sure that you create another weakness somewhere else.

From the position in question the game continued thus:

1. R - K 4 K R - K 1

with the object of repeating White's manœuvre, and also not to allow White the control of the open file.