First, freeze the 3 ball to the rail at the 2nd diamond. Then, freeze the cue ball to the 3 ball and the rail.
I aim parallel to the long rail with a touch of left english, as diagrammed, and a touch of draw. The shot's pretty sensitive to the amount of spin, so you'll have to use small increments to make adjustments. The inside should throw the object ball away from the rail, missing the object ball. It will also squirt the cue ball away from the rail. You can hit it pretty softly, but keep your stroke smooth.
This is a devious little shot I rode all the way to win the 2010 Ultimate Trick Shot Tour Championships. The cue ball and 3 ball are frozen to the rail and to each other, with a blocker ball in the way of the corner pocket.
2006 - 2017 © Tim Chin