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
