[1] It was designed by Peter Cassetta[2] of Fingertip Software (now defunct) as an attempt to support all the encoded letters from both KOI8-E (ISO-IR-111) and KOI8-RU (and hence also, KOI8-U and KOI8-R), along with some of the pseudographics from KOI8-R,[3][2] with some additional punctuation in the remaining space, sourced partly from Windows-1251.
FreeDOS calls it code page 60270.
Each character is shown with its equivalent Unicode code point.
Differences from ISO-IR-111 are boxed; other relevant encodings which are matched, if any, are noted in footnotes.
It is a modification of KOI8-F to support Caucasian languages while retaining support in the same languages as KOI8-F. FreeDOS calls it code page 61294.