Quadrapassel inobva kumutambo wekare wekudonha-block, Tetris. Chinangwa chemutambo ndechekugadzira mitsara yakazara yakachinjika yemabhuroko, inozonyangarika. Mabhuroko aya anouya ari maumbirwo manomwe akasiyana akagadzirwa kubva kumabhuroko mana rimwe nerimwe: rimwe rakati twasu, maviri akaita L, mativi mana, uye maviri S-akaita. Iwo mabhururu anodonha kubva kumusoro pakati pechidzitiro mune isina kurongeka. Iwe unotenderedza zvidhinha uye woafambisa pahwindo kuti uzvidonhedze mumitsetse yakazara. Iwe unopa zvibodzwa nekudonhedza zvidhinha nekukurumidza uye nekupedzisa mitsetse. Sezvo zvibodzwa zvako zvichikwira, unokwira kumusoro uye zvidhinha zvinodonha nekukurumidza.