My wife has the 'madness'. She loves sudoku puzzles.
It started innocently enough this summer when I was doing a puzzle. She asked me to show her how it worked. We solved one together. She never looked back.
She has now completed approximately 283,000 puzzles (rounded to the nearest 1000). And one of her favorite gifts under the tree yesterday was probably the least expensive. A gift bag filled with books of sudoku puzzles, pre-sharpened pencils, and cap erasers. Pre-sharpened pencils allow the puzzle fanatic to immediately begin solving without that pesky pencil sharpening chore. She liked that. And the pointy corner of cap erasers apparently make it much easier to erase the various little potential numbers in a square. Gotta have that.
And it wasn't long after the shredded gift wrap was whisked away that she was happily sudokuing. (I think I just created a verb! Webster, where are you??)
I couldn't let her top the 300,00 mark without a bit of a challenge, though. No 'easy' books for her. And one 'fiendish' level...just to test her advanced sudoku skills.
Merry Christmas, honey!