There is a one-page article on Arta Inkala's 'Toughest Sudoku' in Mumbai Mirror on 20th August 2010. Indian Sudoku Champion 2010 Rohan Rao had given it a shot and was able to solve it in 21 minutes using guesswork. His challenge to everyone is to find a logical path to solving it, which he says can take weeks! He had given his views and feedback.
Sorry, now these articles are no longer available to read.
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