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 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 ...

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 ...

Sudoku is more than just a pastime; it’s a mental workout that sharpens logic, patience, and problem-solving skills. From casual enthusiasts to competitive solvers, players are constantly seeking ways ...

Some are easy to figure out, like the clues in a newspaper’s Monday crossword, a beginner’s Sudoku grid or cryptogram. Others are more difficult. But one puzzle that has proved impossible to solve, ...

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 ...