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The most difficult sudoku in the world

In 2012 mathematician Arto Inkala said he created the most difficult to solve Sudoku. You can try it yourself and see if this is actually true.

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Malignant mesothelioma is an occupational disease

Mesothelioma is an extremely malignant tumor that mainly affects the lungs. Starting at the average sheet of the pleura / mezotela /. A characteristic of this disease is: a cancer that is difficult to detect and it is usually too late for the patient to be saved. Over the years …

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Albert Einstein’s Puzzle – only 2% of all people can solve it

This riddle was invented by Albert Einstein about a century ago. According to him, only 2% of the world’s population are able to solve it. Pretty interesting riddle to play with, don’t you think? Terms of the puzzle: Five houses, each painted in different color. In each house lives a …

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