Daily puzzlers would be quick to tell you that sudoku, Wordle’s mathematical cousin, is not as easy as it looks. The small grid, found often next to a word scramble or comic strip in a print newspaper ...

The rules of Sudoku dictate that every row, column and 3×3 bolded box in the completed grid must contain the digits 1 through 9 exactly once. A surprising fact emerges from these simple rules. In ...

The Miracle Sudoku adds challenging chess-themed restrictions to an almost empty grid. Even easy sudoku grids require deductive reasoning, but this one is an extreme brain teaser. Watching Simon ...

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

An Irish mathematician has used a complex algorithm and millions of hours of supercomputing time to solve an important open problem in the mathematics of Sudoku, the game popularized in Japan that ...

Sudoku has exploded in popularity over the past few years. It now runs in many newspapers on a daily basis, and sudoku puzzle collections can be found in bookstores everywhere. In the June/July issue ...

Some games and puzzles have rules that are quickly learned, but still present a challenge. They become immensely popular. Free Cell, the solitaire game, is an example. Sudoku is another. Never heard ...