Intermediate Skills in Billiards

Cut/Angle Shot

"Try to put well in practice what you already know. In so doing, you will, in good time, discover the hidden things you now inquire about.”
-Remy de Gourmont , 1858-1915

Other than straight shot, angle shot is the shot you will mostly encounter, so mastering it before anything else is really a big step in your learning curve.  Read this statement slowly...when a cue ball hit an object ball at an angle, some of the energy from the cue ball is transferred ( law of thermodynamics)  to the object ball...then the object ball would start to move.  To what direction?  To the direction PERPENDICULAR to the tangential line ( yellow arrow in the illustration below). What about the cue ball? It will deflect to the direction of tangential line (black arrow).  Easy enough, right?

Now, given this thought....you could think that in order for you to move that object ball to the desired direction, you need to find that point of contact (tangential point), and you need to be precise where exactly that is, especially when you are faced with a long shot.  But there's always some tolerance since the pocket has some good allowance for error, but as I said, if the object  ball is farther from the pocket this allowance gets smaller .  So how'd you go about finding it? Easy, your point of contact should be the intersection between the straight path to the  pocket and edge of the ball (yellow arrow).  Check out the picture below.

 

Now, here comes the fun part, how'd you get the cue ball to the point of contact... visualization...you hear me right...good visualization is the key.   There are many tips in this bit.  You could try all of them to see which one works for you. Some people say to visualize a row of cue balls stretched across the billiard table all the way to the point of contact on the object ball.  The most common one is to visualize an imaginary "ghost ball"  sitting next to the object ball you want to pocket inline with an imaginary straight path to the pocket, then hit this ghost ball straight on.  Another one is by getting a complete sense of the whole geometry of the billiard table and adjust your shooting angle accordingly...this is tricky and takes a lot of experience.    Now, here's another one...follow these steps:

  • Determine the point of contact...I already told you how to do this.
  • Line up your body  with the cue ball and object ball so that when you look behind the cue ball, it completely obscure both sides of the object ball.
  • Do the proper billiard stance  and proper holding of cue procedures.
  • Eyeball the position of the cue ball again and make sure still obscure the object ball.
  • Here's the important part...on the object ball, imagine a vertical line projecting at the center, note the distance of point of contact to that center (let's call it the object offset).   On the cue ball, imagine a vertical line projecting at the center and apply the object offset on the opposite side of the cue ball.  Now you have two offsets one for the object ball and one  for the cue ball ( cue offset)...both of them have the same width. Note: You have to do a little scaling in your head since the object is at some distance away so it will look smaller.
  • Now move your  upper body slightly, NOT JUST THE STICK, so that the two offsets are lined up.
  • Now Line up your cue parallel with these offsets NOT inline with the offsets, unless of course it's a straight shot.
  • Hit the cue ball at the center.  That's it...Check the diagram below

In situation where cue ball is bigger, the cue ball offset should be adjusted off to the center a little bit and vise versa for smaller cue ball.  So it's always good to have a warm-up shot before the beginning of the real game.

Good luck!!!