A river crossing puzzle is a type of transport puzzle in which the object is to carry items from one river bank to another, usually in the fewest number of trips.
 The difficulty of the puzzle may arise from restrictions on which or how many items can be transported at the same time, or which or how many items may be safely left together.
 The setting may vary cosmetically, for example, by replacing the river by a bridge.
 The earliest known river-crossing problems occur in the manuscript "Propositiones ad Acuendos Juvenes" (English: Problems to sharpen the young ), traditionally said to be written by Alcuin.
 The earliest copies of this manuscript date from the 9th century; it contains three river-crossing problems, including the fox, goose and bag of beans puzzle and the jealous husbands problem.
A three-dimensional edge-matching puzzle is a type of edge-matching puzzle or tiling puzzle involving tiling a three-dimensional area with (typically regular) polygonal pieces whose edges are distinguished with colors or patterns, in such a way that the edges of adjacent pieces match.
 Edge-matching puzzles are known to be NP-complete, and capable of conversion to and from equivalent jigsaw puzzles and polyomino packing puzzle.
A puzzle is a game, problem, or toy that tests a person's ingenuity or knowledge.
 In a puzzle, the solver is expected to put pieces together in a logical way, in order to arrive at the correct solution of the puzzle.
 There are different genres of puzzles, such as crossword puzzles, word-search puzzles, number puzzles, or logic puzzles.
A disentanglement puzzle is a type of mechanical puzzle that involves disentangling one piece or set of pieces from another piece or set of pieces.
 The reverse problem of reassembling the puzzle can be as hard as—or even harder than—disentanglement.
 There are several different kinds of disentanglement puzzles, though a single puzzle may incorporate several of these features.
A self-reference puzzle is a type of logical puzzle where the question in the puzzle refers to the attributes of the puzzle itself.
Drunter und Drüber is a multiplayer board game invented by Klaus Teuber, first published in 1991 in Germany by Hans im Glück.
 A second edition was released in 1994 by Hans im Glück and featured art by Franz Vohwinkel.
 "Drunter und Drüber" translates to "over and under" although the phrase "topsy-turvy" may be more appropriate.
 The game was repackaged and rethemed as the western game "Wacky Wacky West" in 2010.
Frege's Puzzle is a puzzle about the semantics of proper names, although related puzzles also arise in the case of indexicals. Gottlob Frege (1848-1925) introduced the puzzle at the beginning of his article "Über Sinn und Bedeutung" ("On Sense and Reference") in 1892 in one of the most influential articles in analytic philosophy and philosophy of language.
Super Puzzle Bobble, also released as Super Bust-A-Move in Europe and North America, is a puzzle game in the "Puzzle Bobble" series.
 It was developed by Taito Corporation, and released on November 26, 2000 by Acclaim Entertainment for the PlayStation 2 and PC.
 There is a different arcade release with the same name.
 It was later ported to the Game Boy Advance on November 27, 2001.
 It was re-released in Japan for the PS2 in 2004 as part of "Super Puzzle Bobble DX" (along with its sequel, "Super Puzzle Bobble 2"), which is Volume 62 of the Japan-exclusive "Simple 2000 Series".
 This compilation includes a few graphical enhancements.
A puzzle book is a collection of puzzles for the reader to complete.
 Puzzle books may contain puzzles all of simply one type like (e.g. crosswords or sudoku) or a mixture of different puzzle types.
 Puzzle books may be aimed for adults or children.
 Puzzle books can be used for many purposes such as education or purely for entertainment.
 Many people claim that puzzles help enhance certain brain functions in terms of memory and information processing, though these claims cannot be proven with certainty.
A dissection puzzle, also called a transformation puzzle or "Richter Puzzle", is a tiling puzzle where a set of pieces can be assembled in different ways to produce two or more distinct geometric shapes.
 The creation of new dissection puzzles is also considered to be a type of dissection puzzle.
 Puzzles may include various restraints, such as hinged pieces, pieces that can fold, or pieces that can twist.
 Creators of new dissection puzzles emphasize using a minimum number of pieces, or creating novel situations, such as ensuring that every piece connects to another with a hinge.

Question: Drunter und Drüber and Puzzle, is which type of entertainment?
Answer: game