World's hardest sudoku: can you crack it?
Por um escritor misterioso
Descrição
Readers who spend hours grappling in vain with the Telegraph

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It took three months to create, so how long will it take to crack the world's hardest Sudoku?

Is suposed to be the hardest sudoku ver, and i have no idea what to do : r/ sudoku

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Arto Inkala sudoku or «worlds hardest sudoku» : r/sudoku

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