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Evening brainteaser: Have a shot at the world’s hardest sudoku puzzle
Finnish mathematician Arto Inkala challenges you to a game of sudoku, the hardest one ever constructed. 
Give up? Here’s the answer.
Via

Evening brainteaser: Have a shot at the world’s hardest sudoku puzzle

Finnish mathematician Arto Inkala challenges you to a game of sudoku, the hardest one ever constructed. 

Give up? Here’s the answer.

Via



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  1. jamieskywalker reblogged this from psychomath
  2. metalily reblogged this from stolengoodies
  3. stolengoodies reblogged this from skyghe
  4. skyghe reblogged this from spam420
  5. spam420 reblogged this from myheadisweak
  6. myheadisweak reblogged this from logicianmagician
  7. quantumwobbles-has-moved reblogged this from asymptoticalpaca
  8. ah-thenah reblogged this from smoot
  9. urug reblogged this from neonpi
  10. sonerdtastic reblogged this from neonpi
  11. psychomath reblogged this from neonpi
  12. th3littl3princ3 reblogged this from neonpi
  13. neonpi reblogged this from smoot
  14. smoot reblogged this from ulaulaman
  15. papercogs reblogged this from ulaulaman
  16. ulaulaman reblogged this from iheartchaos
  17. testsubject06 reblogged this from ceasepool and added:
    I like how it’s 11 star difficulty. Clever.
  18. seppukustyles reblogged this from ceasepool and added:
    Haven’t really started though
  19. ceasepool reblogged this from seppukustyles and added:
    Huehue This is amusing
  20. lokidemon reblogged this from infinite-ugh
  21. infinite-ugh reblogged this from sanityscraps
  22. gullible-and-credulous reblogged this from iheartchaos
  23. sineadmckid reblogged this from iheartchaos

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