Cyrillization of Korean

The Kontsevich system (Систе́ма Конце́вича) is a Cyrillization system for the Korean language and currently the main system of transcribing and transliterating Korean words into the Cyrillic alphabet. The Kontsevich system was created by the Soviet-Russian scholar Lev Kontsevich (Лев Конце́вич) in the 1950s based on the earlier transliteration system designed by Aleksandr Kholodovich (Алекса́ндр Холодо́вич).

Features
Cyrillization systems for Korean were developed domestically in both North Korea (where it has been proposed to replace the current script in the past) and South Korea; Kontsevich carried out work on the systemization of these rules. In contrast with some systems of Romanization of Korean, the transcription is based primarily on the pronunciation of a word, rather than on its spelling.

Medial consonant rules
Some letters are transcribed differently in the middle of a word when following certain other letters.