For anyone who has ever struggled while attempting to solve a Sudoku puzzle, mathematicians are coming to the rescue. They can not only explain why some Sudoku puzzles are harder than others, they ...

For anyone who has ever struggled while attempting to solve a Sudoku puzzle, University of Notre Dame researcher Zoltan Toroczkai and Notre Dame postdoctoral researcher Maria Ercsey-Ravaz are riding ...

Researchers at University of Notre Dame have developed a mathematical algorithm that solves sudoku puzzles very quickly, without any guessing or backtracking. LONDON: For those who struggle to solve a ...

The Journal of the Operational Research Society, Vol. 65, No. 10 (OCTOBER 2014), pp. 1602-1610 (9 pages) Sudoku is a puzzle played of an n × n grid N, where n is the square of a positive integer m.