Billiard table all six pockets), with rounded entrances and nearly parallel sides, like those on a snooker table. One tactical consequence of this design difference is that the jaws of the WPA-type pocket are often used exactly like a horizontal version of the backboard of a basketball goal, to rebound the ball into the pocket; this technique does not work on blackball tables, and even shots down the cushion into a corner pocket are more difficult. For tournament competition under WPA world-standardized rules (and league play under derived rulesets), the bed of the pocket billiard table must be made of slate no
Snooker status as the regular ranking tournaments. However, this event has been taken out of the tour since 2013, when the Champion of Champions was established. There are also other tournaments that have less importance, earn no world ranking points and are not televised. These can change on a year-to-year basis depending on calendars and sponsors. In 2015, the World Professional Billiards and Snooker Association submitted an unsuccessful bid for snooker to be played at the 2020 Summer Olympics in Tokyo. Another bid has been put forward for Paris 2024 through the newly formed World Snooker Federation. Several players, such as