Fill-in puzzles (also known as "Fill-ins") are a variation of the common crossword puzzle in which words, rather than clues, are given.
– 4 levels of difficulty, from beginner to expert
– Several daily puzzles
– Many languages available
– Many settings to customize the features and the look and feel of the grid
– A mix of crossword grid styles: american, french, italian, … (the difference is in the way the black squares are placed)