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A 13-year-old is the first human to beat Tetris | Numerous theoretical milestones remain
(www.techspot.com)
This is a most excellent place for technology news and articles.
This person did it by playing it until it crashed. There are several points where particular actions will crash the game.
I would argue though that to beat Tetris you would need to beat level 255, at which point the level counter wraps to level 0