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bright sudoku
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about
action
activity
analyse
analysis
analyzing
answer
applied
blank
box
boxes
brain
brainiac
brains
challenge
challenging
check
column
columns
concept
demanding
difficult
easy
effort
empty
figure
fill
game
genius
grid
guess
hard
hobby
imagine
indentify
ingenuity
intellectual
intelligence
intelligent
intermediate
logic
logical
mastermind
mathematics
mind
missing
mystifier
note
number
numbers
objective
out
over
placement
plan
ponder
problem
puzzle
reason
reflect
row
rows
scan
scanning
solution
solve
solving
space
spaces
square
squares
strategy
sudoku
teaser
test
testing
think
thinking
visualize