Under standard orthography rules codified by the Russian Academy of Sciences, the modern Russian Cyrillic alphabet contains exactly 33 letters: ten vowels, twenty-one consonants, and two silent sign modifiers (ъ and ь).
When counted strictly in order, the opening sequence proceeds as follows:
- А (A)
- Б (Be)
- В (Ve)
- Г (Ge)
- Д (De)
- Е (Ye)
- Ё (Yo)
- Ж (Zhe)
- З (Ze)
- И (I)
In this established sequence, З occupies the ninth position, immediately followed by И in the tenth position. The semi-vowel Й (I kratkoye) sits securely at eleventh. There is no mathematical dispute within formal linguistics: И is the tenth letter.
Why, then, do native speakers and search algorithms routinely hesitate? The breakdown happens at position seven.