sumit: RT @terr1firma: If Sudoku and Tetris got together, this is could be their progeny: geomagical game http://t.co/qt1Cbmy via @NewScientist

sumit: RT @terr1firma: If Sudoku and Tetris got together, this is could be their progeny: geomagical game http://t.co/qt1Cbmy via @NewScientist

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