Under the current system it is not uncommon for some parents to be offered multiple places whilst other parents could potentially have no offer of a place for any of the preferences expressed.
O dan y system bresennol, nid yw'n anghyffredin i rai rhieni gael cynnig nifer o leoedd, ond gallai rhieni eraill beidio â chael unrhyw gynigion ar gyfer unrhyw un o'r ysgolion a ffefrir ganddynt.