From Clinton H Weir:
Welcome to Number Fill, puzzle fans, where you can play classic number fill-in puzzles on your mobile device! Choose from 5x5, 11x11 or 19x19 (or 5 other sizes available with purchase). The grid will be filled with blank spaces and it is your job to use logic to figure out how to put the given numbers into the grid so they all fit. It's like a crossword puzzle, but with numbers instead of words.Don't worry - if you get stuck you can ask for a hint or you can make a guess about where a number should go. You will receive immediate feedback as to whether you were right or not. Finish the puzzle in the fewest moves possible, then challenge your friends to beat your best.To play, press one of the numbers below the play field, then touch the square in the puzzle field to place it.