1. Wopangidwa ndi waya wa dzimbiri, wolimba komanso wolimba 2. Kugwiritsa ntchito kwakukulu, kosavuta kuyeretsa 3. Mapangidwe ozungulira amatsata mbiri yakale, yomwe ndi yosavuta kusamalira komanso osavuta kupweteketsa manja anu