The term 'kind of puzzle' can refer to three different types of puzzles: JIGSAW (6 letters), CROSSWORD (9 letters), and Chinese (7 letters). JIGSAW puzzles are composed of interlocking pieces that must be arranged to form a picture. Crosswords are word puzzles in which players must fill in the blanks with words that fit the clues given. Chinese puzzles, also known as Hanjie or Griddlers, are logic puzzles in which players must fill in the squares of a grid according to the numbers given.