Mathematician claims breakthrough in Sudoku puzzle

Harvard Mathematician Resolves 150-Year-Old Chess Problem

A Breakthrough In Sudoku Technique

Techniques to Solve this Sudoku Puzzle - Puzzling Stack Exchange

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

Math-Infused Sudoku: Puzzle Variants at All Levels of Difficulty

Puzzling behaviour: Maths professor finds the formula that will solve ANY Sudoku

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Mathematician Claims Breakthrough in the Sudoku Problem

PDF] Upper bounds for the number of solutions to spatially coupled Sudokus

Excluding anything computerised, what is the hardest puzzle, or game you have ever tried? - Quora

Mathematicians Solve Minimum Sudoku Problem

Puzzling behaviour: Maths professor finds the formula that will solve ANY Sudoku