Check out the videos on the
pattern racking resource page.
Enjoy,
Dave
This is a fantastic resource.
To comment on this....when it is opponent racks, then using the various pattern racks is rarely a problem. It is highly common to at least place the 2 & 3 in the same place to create the "up and down" effect. It's well understood your opponent will rack to make it as difficult as possible for you and vice versa. How well does this work? Well, it works a little bit but it isn't a game-changer as it is so common once you get above the B level, players can move the ball around well and are skilled enough to deal with long range shots with regularity. I've never seen anyone complain about it before.
On the flip side, with the dreaded Rack-Your-Own ...
Pattern racking is a huge problem. See Dr. Dave's analysis of Deuel's various racks. Look also at Donnie Mills stuff. It becomes the same run out over and over and over.
This is nothing new. I do remember that at least a decade ago - Europe had a rule that the 2 ball had to be placed in a different position each rack, and you could not repeat the position of the 2 ball until all the other positions were used. So the 2 ball got racked "around the clock" so to speak. This breaks the pattern racking system, without being an over-burdening rule or excessively difficult to enforce. Still, such a rule requires at least an area-referee. Can be hard to remember where the 2 was placed after a series of racks, and adds another layer of something to deal with and keep an eye on in a match. Ultimately, it is more of a deterrent and most players would not try get around it.
As the current rules are written, there's no way to really enforce it. What is "random" ? No such thing as random when a human is placing the balls. Also, even if truly random, that means the same pattern could occur more than once.
That's why these 2 ball placement rules were experimented with.
In the end, 9-ball has been plagued by racking and breaking tactics. It's really all that game is at the higher level. It's a break contest. Hence all the work arounds and band-aids such as no-soft-break rules, no pattern racking, racking the 9 on the spot, break boxes of various sizes, minimum balls up-table (see anti-soft break)...and all this other nonsense which lead to the rise of 10-ball.
Sadly though, 10-ball falls victim to the same sort of things, not as bad as 9-ball....but enough to make one ask what is the point of 10 ball. Besides, 10-ball was supposed to be a no-slop game. At least way back in the day. But in modern days, it took on Texas Express type rules making it 9 ball with an extra ball....but that's another topic for another thread.
Anyway, this is why I prefer 8-ball, 14.1 and One-Pocket. These games require more thinking too.