![Exercise with Three Unknowns](https://image.tmdb.org/t/p/original//eFh9CAYLTY95JXbXPqbJZsibyuy.jpg)
![Exercise with Three Unknowns](https://image.tmdb.org/t/p/w200//aP7MmlRvARnItiXFPgdK5QyytKe.jpg)
Exercise with Three Unknowns
2 hours 8 minutes1979-12-13
7.2
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Criminal investigation is investigating the case of robbery of the factory cashier. At the checkpoint of the factory of precision mechanics and optics, two criminals attack the cashier. Criminals manage to escape by the car, waiting for them around the corner. At the scene of the crime, criminal investigation officers arrive Major Dorokhov and Lieutenant Matushkin. They interview witnesses, but they did not remember properly any attackers or machine numbers, but noticed that one prevented the other from firing.
Cast
![Leonhard Merzin](https://image.tmdb.org/t/p/w200//z7LqccdgOl6birAWu9Uv1LEeRs6.jpg)
Leonhard Merzin
Andrey Dorokhov - starshyy sledovatel ugolovnogo rozyska
![Vladimir Gerasimov](https://image.tmdb.org/t/p/w200//2Cweu9nFrRe9uaQH453VM7zBICh.jpg)
Vladimir Gerasimov
Matushkin - leytenant militsii
![Olga Prokhorova](https://image.tmdb.org/t/p/w200//1SowEamTJdPTB4MlFGtKYMtJPk5.jpg)
Olga Prokhorova
Valentina Prilepskaya - sozhitelnitsa Kopylova
![Rostislav Yankovsky](https://image.tmdb.org/t/p/w200//2DUJcHl4cKHM5fk1rt3YEIe7Y2r.jpg)
Rostislav Yankovsky
Anton Belov
![Boris Shcherbakov](https://image.tmdb.org/t/p/w200//eFQC3x2WvWvJZ0eRohUdYMWMUP8.jpg)
Boris Shcherbakov
Boris Kopylov
![Viktor Proskurin](https://image.tmdb.org/t/p/w200//fDqp9I7rMZwBtYutYAl1aRk6yXE.jpg)
Viktor Proskurin
Gennadiy Potapov
![Yuri Astafyev](https://image.tmdb.org/t/p/w200//jDcPOrpA0c2TBRHZhOrdTgg2NEJ.jpg)
Yuri Astafyev
Nikolay Makeyev
![Tamara Chernova](https://image.tmdb.org/t/p/w200//y8eDGCQsSdkWiPMfeNTAi3x8zEB.jpg)
Tamara Chernova
Shustova - mama Olega
![Aleksandr Vergunov](https://image.tmdb.org/t/p/w200//tXpejxBm0PMfkjycUeElxPfCeTy.jpg)
Aleksandr Vergunov
Oleg Shustov
![Mikhail Petrov](https://image.tmdb.org/t/p/w200//6JCANCAp7sjC0hhUpDI18cLGBKd.jpg)
Mikhail Petrov
Zenkovich - taksist
![Galina Makarova](https://image.tmdb.org/t/p/w200//AgCCaRme9hfO183taRQ70iRLXUT.jpg)
Galina Makarova
Nadya - domrabotnitsa professora Jakobsona
![Vera Titova](https://image.tmdb.org/t/p/w200//fR5Knvh41WK1s352zvkLZQJ9pZY.jpg)
Vera Titova
Vera Yatsevich - kassir
![Nadezhda Sementsova](https://image.tmdb.org/t/p/w200//g9wuaIkcw9soBSzxyWqtkIFHyQI.jpg)
Nadezhda Sementsova
Vera Petrovna - expert-kriminalist
![Boris Vladomirsky](https://image.tmdb.org/t/p/w200//krxMuumCoKg568JvYbklTaB5boU.jpg)
Boris Vladomirsky
Kostya - voditel-okhrannik
![Pavel Vinnik](https://image.tmdb.org/t/p/w200//7y0OJATmU8IGXJJQUJqfpJoLnq5.jpg)
Pavel Vinnik
Kapitan militsii - kollega Dorokhova
![Anatoli Stolbov](https://image.tmdb.org/t/p/w200//w8kmba0ybeh2TPblRWMbclqMXJi.jpg)
Anatoli Stolbov
Mazurok - uchastkovyy inspektor
![Ivan Havryliuk](https://image.tmdb.org/t/p/w200//h5YlurHTS7mgq28EBjFsLkdWvVw.jpg)
Ivan Havryliuk
Rabotnik militsii
![Nikolay Kozinin](https://image.tmdb.org/t/p/w200//60H9botqreE901LPDs1iHFiwJpe.jpg)
Nikolay Kozinin
Kapitan militsii
![Viktor Uralsky](https://image.tmdb.org/t/p/w200//3OOv97bX4Zu1djvfyUwd2X9wdQS.jpg)
Viktor Uralsky
Meshkov - svidetel ogrableniya
![Georgi Svetlani](https://image.tmdb.org/t/p/w200//rrWskQTtkEJgLZgKsC7tCz7hzgC.jpg)
Georgi Svetlani
Starichyok-bilyardist
![Sergey Zhuravel](https://image.tmdb.org/t/p/w200//dPjqSa3JAPjcw4i6d8iBQcSDArx.jpg)
Sergey Zhuravel
Pyotr Tarikov - elektromontyor ZHEKa
![Ivan Zharov](https://image.tmdb.org/t/p/w200//yKLa2uEzS5a8ShyuOySu9MvBGhq.jpg)
Ivan Zharov
Mikhail Zakharovich - svidetel
![Vladimir Gritsevskiy](/_next/static/media/notFound.aecd17f8.png)
Vladimir Gritsevskiy
Expert
![Lev Perfilov](https://image.tmdb.org/t/p/w200//16aIwqZdx9fBPcVul4icOYuWjxp.jpg)
Lev Perfilov
Spetsialist po mekhu
![Vladimir Kudrevich](/_next/static/media/notFound.aecd17f8.png)
Vladimir Kudrevich
Khozyain garazha
![Inna Vykhodtseva](https://image.tmdb.org/t/p/w200//35ZsLnBS5UFOGwTBsFADKlorSbM.jpg)
Inna Vykhodtseva
Inna Nikolaevna - sestra Makeeva
![Tatyana Reshetnikova](https://image.tmdb.org/t/p/w200//hwUIBK42aHE0qSCTBeDYUpRsIJB.jpg)
Tatyana Reshetnikova
Tanya - zhena Gennadiya Potapova
![Svetlana Turova](/_next/static/media/notFound.aecd17f8.png)
Svetlana Turova
Mariya Alekseevna - rabotnitsa taksoparka
![Nina Rozantseva](https://image.tmdb.org/t/p/w200//iXgprawlta1Ym54fFFc94feo879.jpg)
Nina Rozantseva
Episodic role
![Lidiya Mordachyova](https://image.tmdb.org/t/p/w200//mKum6stjKTtmwDWrYEU5029bjQ1.jpg)
Lidiya Mordachyova
Episodic role
![Tatyana Bondarenko](https://image.tmdb.org/t/p/w200//r74MzNLqxAST8GGEizIdoSTRvle.jpg)
Tatyana Bondarenko
Lena - nevesta Shustova
![Lyudmila Stoyanova](https://image.tmdb.org/t/p/w200//1YsjxAF6KoYA5kyqCnHUmQ1nruH.jpg)
Lyudmila Stoyanova
Rabotnitsa taksoparka
![Ninel Zhukovskaya](https://image.tmdb.org/t/p/w200//eLuh3bjG57USJqmeOqgZW9Om6VH.jpg)
Ninel Zhukovskaya
Ofitsiantka
![Ekaterina Vergunova](/_next/static/media/notFound.aecd17f8.png)
Ekaterina Vergunova
Episodic role
![K. Nesterovich](/_next/static/media/notFound.aecd17f8.png)
K. Nesterovich
Episodic role
![Biruta Dokalskaya](/_next/static/media/notFound.aecd17f8.png)
Biruta Dokalskaya
Episodic role
![Alla Dolgaya](/_next/static/media/notFound.aecd17f8.png)
Alla Dolgaya
Episodic role
![Nikolay Kuzmin](https://image.tmdb.org/t/p/w200//baFTqjvBGzFDtbJwookj0ihbQEg.jpg)
Nikolay Kuzmin
San Sanych - nachalnik taksoparka
![Mikhail Fedorovskiy](https://image.tmdb.org/t/p/w200//1J9npARmK2ZEnLsIhPJnHLtFVMS.jpg)
Mikhail Fedorovskiy
Vrach
![Vasiliy Nikitenko](/_next/static/media/notFound.aecd17f8.png)
Vasiliy Nikitenko
Episodic role
![Pavel Kormunin](https://image.tmdb.org/t/p/w200//MytRbfWEdjgyCBcqxvIYWPnDQe.jpg)
Pavel Kormunin
Ales Gavrilovich - priyatel Dorokhova
![Leonid Ulashchenko](/_next/static/media/notFound.aecd17f8.png)
Leonid Ulashchenko
Episodic role
![Igor Andreev](https://image.tmdb.org/t/p/w200//ckppm7XvsK6D7WfaeKKBpBYFLRh.jpg)
Igor Andreev
Kapitan militsii
![Pavel Dubashinsky](https://image.tmdb.org/t/p/w200//cgJAdgfiv0e0mR9iKanm9oiwzd3.jpg)
Pavel Dubashinsky
Kapitan militsii
![Vitali Bykov](https://image.tmdb.org/t/p/w200//yChw0IJXNNYdOG9EHswXw68k1DV.jpg)
Vitali Bykov
Rabotnik taksoparka
![G. Zharkov](/_next/static/media/notFound.aecd17f8.png)
G. Zharkov
Episodic role
![Yuriy Kharitonov](/_next/static/media/notFound.aecd17f8.png)
Yuriy Kharitonov
Episodic role
![Vyacheslav Galuza](/_next/static/media/notFound.aecd17f8.png)
Vyacheslav Galuza
Episodic role
![Nikolay Kirichenko](/_next/static/media/notFound.aecd17f8.png)
Nikolay Kirichenko
Svidetel
![Valeriy Anisenko](/_next/static/media/notFound.aecd17f8.png)
Valeriy Anisenko
Episodic role
![Vladimir Kin-Kaminkiy](/_next/static/media/notFound.aecd17f8.png)
Vladimir Kin-Kaminkiy
Paskevich
![A. Grak](/_next/static/media/notFound.aecd17f8.png)
A. Grak
Episodic role
![V. Kucher](/_next/static/media/notFound.aecd17f8.png)
V. Kucher
Episodic role
![Oksana Donets](/_next/static/media/notFound.aecd17f8.png)
Oksana Donets
Sasha Potapova - doch
![Inna Stepanova](/_next/static/media/notFound.aecd17f8.png)
Inna Stepanova
Doch Inny Nikolaevny
![Nikolay Kochegarov](https://image.tmdb.org/t/p/w200//r8wIrg5nuf5YS9rr0HF6PgHpLxF.jpg)
Nikolay Kochegarov
Episodic role
![Rudolf Pankov](https://image.tmdb.org/t/p/w200//sV6A8iYKpk21hR2lnPqktcrJhb5.jpg)
Rudolf Pankov
Dorokhov (voice)
![Igor Chernitskiy](https://image.tmdb.org/t/p/w200//iaBpLUYuWwonkDYyZjkKc8lm4WB.jpg)