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 ...

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 ...

What does backtracking algorithm actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

Leandro C Coelho, Gilbert Laporte, A comparison of several enumerative algorithms for Sudoku, The Journal of the Operational Research Society, Vol. 65, No. 10 (OCTOBER 2014), pp. 1602-1610 ...