Thomas Snyder (aka Dr. Sudoku) is a two-time World Sudoku Champion and five-time US Puzzle Champion, as well as the author of several books of puzzles. His puzzles are hand-crafted, with artistic ...

MANILA, Philippines - Starting today, puzzlers from all over the country will have the chance to practice Sudoku puzzles in The Philippine STAR. In a partnership with the Mathematics Trainers Guild ...