At my current job, we have an "onsite" challenge that we used to hire some Cuban devs. We went to Cuba (from Mexico) and gave the candidates a codebase for Tet

At my current job, we have an "onsite" challenge that we used to hire some Cuban devs. We went to Cuba (from Mexico) and gave the candidates a codebase for Tetris in an interpreted language they did not know. They have 2 hours to transform that Tetris into a Nibbles (snake) game. The catch? There is no internet in Cuba, so they had to do it using a book, and asking questions to a programmer who was helping them there.