A new kind of crossword puzzle based not on words, but on numbers! You are presented a 10x10 grid, along with a list of 2- to 5-digit numbers and the challenge to place those numbers in the grid so that they all fit. If you get stuck, don't be afraid to take a guess. Each attempt to fill in a number counts as a clicks; finish the puzzle in the fewest clicks you can, then share your result via Twitter, email or another method. There's a new puzzle every day!
Once you master the Number Fill 10 puzzle, feel free to step up to another puzzle size (purchase required). Puzzles range from 5x5 to 20x20, so whether you're trying to kill a minute in a grocery line, or you want a serious challenge, you'll find a puzzle size to meet your needs every day.