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What a winning combination?

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.

Correct answers: 18

The first user who solved this task is Nasrin 24 T.

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Life keep teaching me lessons

Why does life keep teaching me lessons i have no desire to learn.

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Limited Test Ban Treaty

In 1963, Britain, America and Russia signed a Limited Nuclear Test Ban Treaty at Moscow to prohibit nuclear weapons tests "or any other nuclear explosion" in the atmosphere, in outer space, and under water. Underground nuclear explosions must not cause "radioactive debris to be present outside the territorial limits" their own country. The nuclear powers thus demonstrated a common goal to "an end to the contamination of man's environment by radioactive substances." The treaty was the result of over eight years of negotiations resolving issues of verification and deep-seated differences in attitudes to arms control and security. A total of 108 countries had signed before the LNTB Treaty entered into force 10 Oct 1963.«

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