Square chitoliro ndi dzina lalikulu chitoliro ndi amakona anayi chitoliro, ndiye chitsulo chitoliro ndi wofanana ndi wosiyana mbali utali.Amapangidwa ndi chitsulo chopindika pambuyo pochiza.Nthawi zambiri, chitsulo chamzerewu chimatulutsidwa, chopangidwa, chophwanyika komanso chowotcherera kuti chipange chitoliro chozungulira, kenako ndikuchikulungitsa mu chitoliro chamzere, ndikudula mu utali wofunikira.Amadziwikanso kuti masikweya ndi amakona anayi achitsulo chozizira, chotchedwa square chubu ndi chubu lamakona anayi, mayina a code ndi F ndi J motsatana.