ContentRated6Russianpyramid,alsoknownasRussianbilliard(Russian:ру́сскийбилья́рд,russkybilyard)orpyramidbilliards,isacuesportthathasseveraldifferencesfromWesternpool,althoughgameplayisstilldominatedbyattemptstopocket(pot)billiardballs.ItisplayedinRussiaandalsoincountriesoftheformerSovietUnion.AvariantwithcoloredballsmodeledonthoseofWesternpooliscalledRussianpool.Anothervariant,kaisa,ispopularinFinland.