Hooked

I am seriously addicted.  I have about half a dozen sudoku books scattered around the house.  Whenever I have an idle moment or am waiting for someone, I pick up a book and start filling in those crazy numbers.  I prefer the medium-hard to difficult puzzles.  There are certainly some that are extreme that are too hard for me.  But I do like being challenged.  With the medium-hard ones, I try to do them without any little "numbers in the corners"  It's so satisfying to complete a puzzle with no marks, notes or erasures!  I am also noticing that particular authors (or whomever is designing the puzzles in a given book) have their own style and the puzzles have a unique feel to them.