Sudoku

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Hand of an old man who is solving a Sudoku problem

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Size: 5120px × 3413px
Photo credit: © Seapix / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: active, doku, hand, hobby, indoors, logic, man, mans, maths, mind, newspaper, pastime, playing, puzzle, solution, solving, su, sudoku