DAY 13
After waking up you see another letter from your wife.
"Sorry, no coming out for today! But I decided to give you a special chance. I brought you this sudoku magazine. If you solve 100 sudokus until the next morning I might reconsider our contract conditions and postpone it. If you won't solve it then... well.. you stay as my slave for another 17 days... and I will give you an additional punishment that depend on the number of correct solves.
And to make sure that you won't cheat, I removed all the pages with solutions :) Remember - I will check everyone if you solved it correctly!"
That's cruelty - you think! Guess you have no choice. You wish not to know what kind of punishment did she prepare for you...