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www.telegraph.co.uk/news/science/science-news/9359579/Worlds-hardest-sudoku-can-you-crack-it.html

Jun 28, 2012 ... Sudoku is a familiar challenge to newspaper readers and puzzle enthusiasts, ... Mr Inkala said the most difficult parts of the grid require you to think ten .... " hardest ever" As the author notes, there may be a more difficult one at some point . ... I'm not convinced this one can be "solved" without making a guess ...

abcnews.go.com/blogs/headlines/2012/06/can-you-solve-the-hardest-ever-sudoku

Jun 29, 2012 ... Arto Inkala, a Finnish mathematician, designed this Sudoku puzzle, which he claims is the hardest Sudoku yet. (Pekka Carvonen). A Finnish ...

puzzling.stackexchange.com/questions/252/how-do-i-solve-the-worlds-hardest-sudoku

Note: I put this program into the solver on sudokuwiki.org and it couldn't find any numbers. .... Since you did ask for a solution to the puzzle, however, I can provide it (mouseover the spoiler block): .... Hardest sum sudoku ever!

www.dailymail.co.uk/news/article-2166680/True-test-genius-monumental-waste-time-Can-solve-hardest-Sudoku.html

Jun 29, 2012 ... ... or monumental waste of time? Can you solve the hardest ever Sudoku? ... Well , now comes the ultimate test - the world's most difficult puzzle.

www.mirror.co.uk/news/weird-news/worlds-hardest-sudoku-can-you-242294

Aug 18, 2010 ... Could this be the toughest sudoku puzzle ever devised?

www.conceptispuzzles.com/index.aspx?uri=info/article/424

Jul 25, 2013 ... Some of these puzzles can be solved right on this page while others can ... Sudoku is easily the most played and most analyzed puzzle in the ... Boolos called it "The Hardest Logic Puzzle Ever". The original article can be downloaded here. You can read about making this puzzle even harder on the Physics ...

www.ibm.com/developerworks/community/blogs/jfp/entry/solving_the_hardest_sudoku

Feb 17, 2014 ... Do you know the hardest Sudoku problem? Do you know the best way to solve it ? Before ... Now, let us look at how to solve this problem.

gizmodo.com/can-you-solve-the-10-hardest-logic-puzzles-ever-created-1064112665

Aug 8, 2013 ... In the following list you will find both familiar puzzles and games such ... Easily the hardest was the Killer Sudoku shown above, published on ...

www.makeuseof.com/tag/can-solve-5-internets-hardest-logic-puzzles

Aug 30, 2016 ... But you can still browse through logic puzzles, written precisely and ... But do you think you can solve the hardest Sudoku puzzle ever made?

www.yahoo.com/news/solve-hardest-ever-sudoku-133055603--abc-news-topstories.html

Jun 29, 2012 ... While Inkala said he believes his is the most difficult Sudoku made to date, he predicted that an even harder puzzle will one day emerge.