The braille alphabet used to write Hungarian is based on the international norm for the 27 basic letters of the Latin script. However, the letters for q and z have been replaced, to increase the symmetry of the accented letters of the Hungarian alphabet, which are largely innovative to Hungarian braille.[1][2]
The accented vowel letters are derived from their base letters through stretching or reflection as follows. The traditional letter for q (which is not part of the basic Hungarian alphabet) has been reassigned to ö, and an unused pattern has been assigned to ü:
The consonant digraphs are derived from their base letters as follows. The traditional letter for z has been replaced, and is used for a parenthesis. As with the accented vowels, the majority of digraphs are created through reflection: