Sudoku players that have been left frustrated by the latest puzzle they're trying out should turn to the handy X-wing technique. Named after the iconic Star Wars spaceship, the X-wing technique can ...

Difficult puzzles and quizzes involving mental exercise, such as sudoku, help burn an average of 90 calories every hour, according to researchers. Mental agility expert Tim Forrester, of website ...

I was so excited to read about Jim Hurley’s helpful program for solving the Sudoku puzzles. I’ve tried them and became frustrated even with those listed as easy. But, today is my first time to feel ...