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
Russian pyramid Russian pyramid Russian pyramid, also known as Russian billiard (, , ) or simply billiards in Russia and Ukraine, is a pocket billiards game, played on a table similar to a snooker table with narrow pockets. It is popular across Eastern Europe as well as countries of the former Soviet Union/Eastern Bloc. A variant with colored balls modeled on those of pool is known as Russian pool. Another variant, , is popular in Finland. In Western countries, the game is known as pyramid billiards. Russian pyramid is considered to be one of the most difficult billiards games. There are several