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 ...

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 ...

My father is a big-time Sudoku fan, and has to date solved tons of them, mostly from magazines and newspapers. He has tried his hand at several versions, including bigger grids, Cross Sums, Kakuro, ...

DEAR DR. ROACH: I’m a 71-year-old man, and my mind is still sharp. Nonetheless, I do seem to have “senior moments.” I can’t come up with a word or remember a name. A couple of years ago, I was about ...

A new study adds more evidence that puzzles can be effective for brain health. The verdict is still out, however, on how they can help us in the long-term or if they can help prevent cognitive decline ...

May 16 — To the Editor: I really enjoy your puzzles and try to "do" the Sudoku puzzle every day. Monday's puzzle is fine, but when I get to Tuesday through Friday, I am unable to figure out what logic ...