Can You Crack the World's Toughest Sudoku? | Fox News
The world's hardest sudoku? | Newspapers | The Guardian
The 10 Hardest Logic/Number Puzzles
CW Accountants on Twitter: "It is National Sudoku day today. Have a look at the world's hardest grid, created by Arto Inkala. Can you complete it? #ChallengeYourself https://t.co/KDAr4PeJUk" / Twitter
World's hardest sudoku: Can you solve Dr Arto Inkala's puzzle? - Mirror Online
The World's Hardest Sudoku - try it now - The TechGears
Solving Sudoku
GitHub - MarionBarbee/Sudoku_solver: Solves all the world's hardest Sudoku puzzles including all from Dr. Arto Inkala, U of Helsinki (Professor of Mathematics).
The Worlds Hardest Sudoku Puzzle
AI Escargot - The Most Difficult Sudoku Puzzle by Arto Inkala
The world's hardest-ever sudoku?
It took three months to create, so how long will it take to crack ...the world's hardest Sudoku? | Daily Mail Online
The World's Hardest Sudoku - try it now - The TechGears
135 vihjesudokua : Arto Inkala : 9789529936960
Can You Solve the Hardest-Ever Sudoku? - ABC News
Trying out an “expert” puzzle for the first time and I didn't get very far. The hint was to assume R6C2 to be 5 and then the next hint was to assume R7C8 to be 1. Does anybody know the logic in arriving at these hints? Thank you very much : r/sudoku
Sudoku Snake - AI Etana
In 2012, Finnish mathematician Arto Inkala claimed to have created the "World's Hardest Sudoku". - 9GAG
Is suposed to be the hardest sudoku ver, and i have no idea what to do : r/sudoku
Arto Inkala
Mathematician Arto Inkala creates world's hardest Sudoku, 'Everest' | Metro News
Is sudoku more than just a puzzle? asks Marcus Du Sautoy | Daily Mail Online
The world's hardest sudoku - solved | Newspapers | The Guardian
Problem solved... sort of: Mathematicians come up with formula to complete every Sudoku (but trying to understand it could take even longer than doing the puzzle) | Daily Mail Online
It took three months to create, so how long will it take to crack ...the world's hardest Sudoku? | Daily Mail Online
