Pens, pencils and a facility with numbers. Also helpful: earplugs, plushies, a water bottle, calming herbal oil and the occasional “wild bifurcation” (a.k.a. a wild guess). Competitors at the World ...

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 ...

Good Sudoku for iOS is a new app that’s launched today from veteran game developer Zach Gage aiming to reinvigorate the digital version of the popular puzzle game. The app comes with a thoughtful ...

The appeal of sudoku has spread to the prokaryotic world. A strain of Escherichia coli bacteria can now solve the logic puzzles – with some help from a group of students at the University of Tokyo, ...