Sudoku fans, it’s time to really crunch some numbers. Give your mind the ultimate test on the most difficult numbers puzzle each day — and challenge yourself to make the impossible possible.

Upper elementary and middle school kids can try their hand at this difficult nonogram puzzle that features a triple-number ...

“I’ve seen at least a dozen other kinds of personalized notation that might be better for some hard puzzles.” It’s interesting to observe that, while sudoku players have distinctly named ...

Charity Ndinda, an entrepreneur, discovered Sudoku during the Covid-19 pandemic—a time when, in her own words, “nothing was making sense.” Her ex-boyfriend introduced her to the game, and before she ...