Задача

Pitaev Valery. Курс на благоустройство территории (Задача)

Berezina Elena.
Decision (Задача)

Aronov Aleksey.
Boats in the ocean (Задача)

Gerasimov Vladimir.
Autumn still life (Задача)

Gerasimov Vladimir.
Abstraction 14 (Задача)

Nesis Elisheva.
The mission

Sergeev Andrey.
Combat tasks

Chernov Vladimir. Mathematical dispute. What's more? A or B

Sergeev Andrey.
Combat missions 2 (version)

Rubchevskaya (Kulumbegashvili) Natalya.
Untitled