This is a great shot that sets up quick and always has people looking twice. Place the two ball on the long rail with the right edge of the ball lined up at the point of the side pocket. Freeze the one ball to the two ball straight out and tap it very lightly in place. Carefully move the two ball out from between the long rail and one ball. Now freeze the 2 ball to the one ball so that they are lined up to the middle of the upper left corner pocket. It's essential that they are frozen! Now place the three ball in the upper right corner pocket. The cue ball is as shown, slightly beyond the side pocket and slightly closer to the long rail than the one ball, approximately 3/4ths of a ball off the rail.
You need top left english on the cue ball with a medium hit. Aim for approximately a 1/3rd ball hit on the one. The one will bank into the corner pocket BEFORE the two drops into the same pocket! The cue ball will then travel 3 rails and pocket the three ball last.
I know I've spoken about throw when balls are frozen. If you set this shot up with the cue ball further from the long rail, the hit on the one ball will throw the two ball. You would have to line the two ball up with the long rail point on the corner pocket to compensate for the throw. Since the set up I showed you has the cue ball closer to the rail, the actual throw on the two ball is very minimal and it makes the bank much easier to make. See, if you set up the two ball to the point, it would change the place on the long rail that the one ball would carom to... meaning you'd have a greater chance of making the one ball go to the short rail, rather than in the pocket. But if you keep missing the two ball to the short rail, you might have to line it up to the point. Before you do that though, try hitting the shot a little harder. The harder the hit, the less the throw- you might not need to change the set up. It's really a sweet simple shot! Have fun with it!!