Can you pass all levels? Chessium:Puzzles offers the most fun way to improve your chess skills. It does not matter whether your chess knowledge is beginner or advanced. There\s fun for everyone here. FEATURES ♞ No internet connection required ♞ 6 difficulty levels: from checkmate in 1 to checkmate in 6 ♞ More than 10K puzzles ♞ Different and changeable themes ♞ Compete with other players