Mathematician claims breakthrough in Sudoku puzzle
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I SOLVED THE WORLD'S HARDEST CLASSIC SUDOKU !!!

A Breakthrough In Sudoku Technique
Mathematics in the News - Crystalinks

Initial hint of Sudoku The minimum number is 17, if it can not be solved below, the mathematician concludes - GIGAZINE

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)
Can you solve Sudoku using graph theory? - Quora

PDF) SUDOKU : THE NEW SMASH HIT PUZZLE GAME
What is the algorithm used to determine the difficulty level of a Sudoku puzzle? - Quora

Techniques to Solve this Sudoku Puzzle - Puzzling Stack Exchange
Bucknell University Mathematics Department
What rule in Sudoku am I missing? Why is the 8 in red bottom right incorrect? - Quora
Is there a Sudoku puzzle where you can start with 1 and find all 1's, then move to 2, and so forth until 9, so that you solve the entire puzzle in

Can You Solve The 10 Hardest Logic Puzzles Ever Created?
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