It may also be played with side, which has two effects, both beneficial. If ball 1 be struck one-half left on ball 2, as before, nearly full, the side used tends to prevent the common error of playing too fine on that ball, and further it enlarges the pocket, or, in other words, will cause ball 1 to drop into the pocket even if it may have touched the dangerous shoulder, as that corner of the cushion is called which partly blinds the pocket.

As a variation of this stroke, place ball 1 30 in. by 13 in., and ball 2 12 in. from cushion 5, and touching the bottom cushion—i.e. ball 1 is moved 2 in. nearer the bottom cushion and ball 2 is set touching it, the other measurements being unchanged. Play with strong left side, striking ball 1 above the centre; impact with ball 2 as before. The stroke may be played with almost any strength desired, and the distance between the balls may be varied; the usual error is to play too fine on ball 2, probably from forgetting to allow for the difference between the points of impact and of aim. As certainty is acquired ball 2 may be placed further from the pocket, when the stroke, though otherwise similar, requires greater accuracy.

Example C is not of uncommon occurrence in a game, and is specially useful when 2 happens to be the adversary’s ball which would be lost for play if dropped into the pocket. By playing a free stroke with strong left side full on ball 2, the latter is driven along the cushion, catches in the shoulders of the pocket, and travels down the table, leaving an open path for ball 1 to the pocket. Ball 1 should be struck above the centre to secure follow, and with plenty of side, to cause it to cling to the cushion. The stroke is an easy one, soon acquired; but the same can scarcely be said respecting Example D, which, though merely a variation, yet requires more judgment and accuracy. The difficulty, of course, is how to give ball 2 time to take the corners of the pocket and get out of the way. Solution is simple, and might be correctly arrived at by a careful student who has read thus far; but the stroke requires some neatness, and time and temper will be saved by watching an expert and by playing before him. It is far from easy to describe such a stroke so as to make its execution by another person certain; all that will be said here is that, to give ball 2 the required time, ball 1 must after impact travel very slowly, whilst ball 2 has considerable velocity, and this is effected by delivering the cue slightly under the centre. If it be struck too low or too sharply, it will stop altogether; and if struck true centre or above, it will follow too soon and again collide with ball 2, the result in both cases being failure.

Diagram II.

Diagram III.—Measurements are not required, as the balls can be placed from the diagram with sufficient accuracy. From position 1″ the stroke can be made by a well-executed screw either direct or off the top cushion, but it is easier and more certain if played as a following stroke; but from positions 1 and 1′ the screw is all but impossible, whereas the high follow offers a reasonable prospect of scoring. Let the cue be well aligned and let the player stand carefully, so as to ensure free delivery. Get well down to the stroke; play ball 1 a free No. 2 strength, three-quarters high, nearly full on ball 2; after impact ball 1 will follow a path somewhat as indicated, the curve being usually very pronounced. The first and sharper curve is apparently due to the rebound after impact modified by the strong follow, whilst the second and more gentle curve is the result of impact with the cushion. The tendency of the latter is, of course, to reverse the follow and send the ball down the table; but the strong follow appears to fight with this, and to prevail so far as to maintain its bias for the cushion and its disposition to return towards it. Ball 1 may almost be placed anywhere towards the left side of the table, and the stroke remains much the same. As the distance between balls 1 and 2 increases, follow becomes less necessary, its place being supplied by naturally developed rotation.

The variety of strokes which may be played on this principle is very great. Too much force should not be employed, or that will in the final conflict defeat the follow, of which it is ordinarily impossible to give too much.

Fine strokes should rarely be attempted unless ball 1 is near ball 2; they are, then, however, often of great value, because, being played gently, the positions of the balls after the stroke can be foreseen with tolerable accuracy. The great secret of success is to stand properly, so that the edge of ball 2 may be clearly seen. A few examples are shown on Diagram IV. They can be set up without measurement.

Diagram III.