Russia · Orenburg Oblast · Sol-Iletsk
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Russia's flagship special-regime colony for life-sentenced prisoners. Operates the strictest known regime in the Russian system.
Federal Governmental Institution - Penal Colony No. 6 of the Federal Penitentiary Service of Russia in Orenburg Oblast, commonly known as the Black Dolphin Prison (Russian: ЧÑÑнÑй делÑÑин, romanized: Chyorny delʹfin) and formerly known as NKVD Prison No. 2 is a prison in Sol-Iletsk, Orenburg Oblast, Russia, near its border with Kazakhstan. It is one of the oldest prisons in Russia, and one of the first in the Orenburg Oblast to accept prisoners with life sentences. It gets its unofficial name from a prisoner-constructed sculpture depicting a black dolphin, which is set in front of the main entrance.
Source: Wikipedia article lead, CC-BY-SA.
Capacity
700
Current population
700
Occupancy
100%
Year opened
1999
Operational
Figures from official sources · verified 28 May 2026 · methodology
Population held
male
Opened
1999
Region
Orenburg Oblast
Security level
Supermax
Death-row facility
No
Inmates spend 22+ hours per day in two-person cells. Movement is escorted with blindfolds and stress positions.
Short visits (up to 4 hours) twice per year; long visits (up to 3 days) twice per year. Often denied in practice.
Mail screened by the colony censor; outgoing letters limited per month. Russian FSIN format with colony number required.
Family parcels permitted to limits set by regime tier; pre-approval often required.
Reports of psychological isolation regime. Memorial and OVD-Info have documented restricted access for monitors.

Yevgeny Alexandrovich Chuplinsky (Russian: Ðвгений ÐлекÑандÑÐ¾Ð²Ð¸Ñ Ð§ÑплинÑкий; born 14 March 1965), known as The Novosibirsk Maniac (Russian: ÐовоÑибиÑÑкий манÑÑк), is a Russian serial killer who killed at least 19 prostitutes in the Novosibirsk Oblast from 1998 to 2005.
Vadim Sergeevich Krotov (Russian: ÐадиÌм СеÑгеÌÐµÐ²Ð¸Ñ ÐÑоÌÑов; born 11 February 1967), known as The Nakhodka Chikatilo (Russian: ÐÐ°Ñ Ð¾Ð´ÐºÐ¸Ð½Ñкий ЧикаÑило), is a Russian serial killer, child molester and producer of child pornography.
Oleg Vladimirovich Naumov (Russian: ÐлеÌг ÐладиÌмиÑÐ¾Ð²Ð¸Ñ ÐаÑÌмов; born 1978) is a Russian mass murderer, convicted for the killing of seven people on 26 January 1998, in Sakhalin Oblast.
Vladimir Nikolayevich Nikolayev Alho (Russian: ÐладиÌÐ¼Ð¸Ñ ÐиколаÌÐµÐ²Ð¸Ñ ÐиколаÌев ÐÐ»Ñ Ð¾) (born March 16, 1959) is a Russian murderer from Novocheboksarsk. Nikolayev is best known for the cannibalism of his victims, and of distributing and selling their flesh to others in disguise of exotic animal meat.
Vladimir Anatolyevich Mukhankin (Russian: ÐÐ»Ð°Ð´Ð¸Ð¼Ð¸Ñ ÐнаÑолÑÐµÐ²Ð¸Ñ ÐÑÑ Ð°Ð½ÐºÐ¸Ð½, born 22 April 1960) is a Russian serial killer, convicted for the murder of 9 people in Rostov Oblast in 1995.
Alexey Vladimirovich Pichugin (Russian: ÐлекÑеÌй ÐладиÌмиÑÐ¾Ð²Ð¸Ñ ÐиÑÑÌгин; born July 25, 1962, in Orekhovo-Zuevo, Moscow Oblast, USSR) is a former manager in the security department at the Russian oil company Yukos.
Showing 9 of 12. Source: Wikidata + Wikipedia.
Derived signal — not a judgement. How it's calculated
What the score is responding to:
This facility scores 16. The national average across 2,130 scored Russia facilities is 19 — 3 points below national average.
Same country, matched on type + security level where possible.
Higher risk than 0% of peer facilities in Russia.
Documented patterns of psychological isolation and movement-with-blindfold rituals applied to all inmates regardless of risk assessment.
How many of our profile fields are populated. We surface this so families and researchers know the limits.
Under CC-BY-4.0. Include the URL and access date; the site is a living reference and entries can change.
World Prisons. (2026). Black Dolphin Prison (IK-6). Retrieved July 21, 2026, from https://worldprisons.com/prisons/black-dolphin
"Black Dolphin Prison (IK-6)." World Prisons. Accessed July 21, 2026. https://worldprisons.com/prisons/black-dolphin.
@misc{worldprisons-black-dolphin,
author = {{World Prisons}},
title = {Black Dolphin Prison (IK-6)},
year = {2026},
url = {https://worldprisons.com/prisons/black-dolphin},
urldate = {2026-07-21}
}