It was a game with a sudoku type feel, but you filled in boxes that run from 1 to 70 (example) the numbers had to be next to each other or diagonal (they had to have contact for the run) there were a bunch of blank boxes with some filled in for clues the start screen had a picture of a desk with some things on it sorry for the bad explanation, it's a tough one to explain. I used to see it on the app store a lot but can no longer find it
This?: http://itunes.apple.com/us/app/str8ts-6x6/id326965080?mt=8 Or this?: http://itunes.apple.com/us/app/1-to-25/id322073922?mt=8