close up of sudoku game and yellow pencil
Keywords
sudoku,
game,
hobby,
intellect,
japan,
enigma,
logic,
mathematic,
closeup,
closeup,
crossword,
competition,
fader,
fad,
fun,
grid,
japanese,
leisure,
labyrinth,
newspaper,
number,
order,
pastime,
patience,
crayons,
problem,
puzzle,
slate,
solution,
solve,
square,
success,
time,
wooden