Mathematician claims breakthrough in Sudoku puzzle

How Data Mining The Web Reveals What Makes Puzzles Hard For Humans, by The Physics arXiv Blog, The Physics arXiv Blog

PDF] Mathematics of Sudoku I

AMS :: News from the AMS

Articles in 2012

Brain Games Math - Temu Australia

So, Sudoku matrices are actually.. Uh.. more random than randomly-generated matrices?! : r/math

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

Complexity Theory's 50-Year Journey to the Limits of Knowledge

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

PDF) SUDOKU : THE NEW SMASH HIT PUZZLE GAME

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)

Mathematicians Solve Minimum Sudoku Problem