Three-dimensional chess

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Kubikschach 8x8x8 gamespace Kieseritzky Cubic Chess board.png
Kubikschach 8×8×8 gamespace

Three-dimensional chess (or 3‑D chess) is any chess variant that replaces the two-dimensional board with a three-dimensional array of cells between which the pieces can move. In practical play, this is usually achieved by boards representing different layers being laid out next to each other.

Contents

Three-dimensional variants have existed since at least the late 19th century, one of the oldest being Raumschach (German for '"Space chess" '), invented in 1907 by Ferdinand Maack and considered the classic 3‑D game. [1] Maack founded a Raumschach club in Hamburg in 1919, which remained active until World War II.

Chapter 25 of David Pritchard's The Classified Encyclopedia of Chess Variants discusses some 50 such variations extending chess to three dimensions as well as a handful of higher-dimensional variants. Chapter 11 covers variants using multiple boards normally set side by side which can also be considered to add an extra dimension to chess. [2]

"Three-dimensional chess" is used colloquially to describe complex, dynamic systems with many competing entities and interests, including politics, diplomacy and warfare. To describe an individual as "playing three-dimensional chess" implies a higher-order understanding and mastery of the system beyond the comprehension of their peers or ordinary observers, who are implied to be "playing" regular chess. [3]

Three-dimensional chess has often appeared in science fiction—the Star Trek franchise in particular—contributing to the game's familiarity.

Kubikschach

Lionel Kieseritzky (1806–1853) developed Kubikschach (German for Cube Chess) in 1851. [4] He used an 8×8×8 board, labelling the third dimension with Greek letters alpha through theta. This format was later picked up by Maack in 1907 when developing Raumschach. According to David Pritchard, this format is:

the most popular 3‑D board amongst inventors, and at the same time the most mentally indigestible for the players ... Less demanding on spatial vision, and hence more practical, are those games confined to three 8×8 boards and games with boards smaller than 8×8. [5]

Raumschach

Ferdinand Maack (1861–1930) developed Raumschach (German for Space Chess) in 1907. He contended that for chess to be more like modern warfare, attack should be possible not only from a two-dimensional plane but also from above (aerial) and below (underwater). Maack's original formulation was for an 8×8×8 board, but after experimenting with smaller boards eventually settled on 5×5×5 as best. Other obvious differences from standard chess include two additional pawns per player, and a special piece (two per player) named unicorn.

Board

The Raumschach 3‑D board can be thought of as a cube sliced into five equal spaces across each of its three major coordinal planes. This sectioning yields a 5×5×5 (125 cube) gamespace. The cubes (usually represented by squares and often called cells) alternate in color in all three dimensions.

Raumschach 5x5x5 gamespace Raumschach gameboard.png
Raumschach 5×5×5 gamespace

The horizontal levels are denoted by capital letters A through E. Ranks and files of a level are denoted using algebraic notation. White starts on the A and B levels and Black starts on E and D.

Rules

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E
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D
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C
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B
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A
Raumschach starting position. [6] White's pawn on Bd2 can move to cells with a white dot or capture on cells marked "×". Black's unicorn on Dd5 can move to cells with a black dot or capture the white pawn on Aa2.

White moves first. The game objective, as in standard chess, is checkmate. Rooks, bishops, and knights move as they do in chess in any given plane.

  • A rook moves through the six faces of a cube in any rank, file, or column.
  • A bishop moves through the twelve edges of a cube.
  • A knight makes a (0,1,2) leap (the same effect as one step as a rook followed by one step as a bishop in the same outward direction) enabling it to control 24 different cells from the board's center.
  • A unicorn moves in a manner special to a 3D space (i.e. triagonal movement) through the corners of a cube, any number of steps in a straight line. Thus, each unicorn can reach a total of 30 cells of the 125-cell gamespace; each player's pair can reach 60.
  • The queen combines the moves of a rook, bishop, and unicorn. The queen has a total of 26 different directions to move: 6 faces plus 12 edges plus 8 corners.
  • The king moves the same as the queen but one step at a time.
  • A pawn, as in chess, moves and captures always forward toward the promotion rank (rank E5 for White, rank A1 for Black). This includes moving one step directly upward (for White) or downward (for Black), and capturing one step diagonally upward (White) or diagonally downward (Black), through a front or side cube edge. In Raumschach there is no pawn initial two-step move (and consequently no capturing en passant ), and no castling.

Star Trek Tri-Dimensional Chess

3D chess on Star Trek (from the episode "Court Martial") StarTrekChess.jpg
3D chess on Star Trek (from the episode "Court Martial")

Tri-Dimensional Chess, Tri-D Chess, or Three-Dimensional Chess [lower-alpha 1] is a chess variant which can be seen in many Star Trek TV episodes and movies, starting with the original series (TOS) and proceeding in updated forms throughout the subsequent movies and spinoff series. [9]

The original Star Trek prop was crafted using boards from 3D Checkers and 3D Tic-Tac-Toe sets available in stores at the time (games also seen in TOS episodes) and adding chess pieces from the futuristic-looking Classic chess set designed by Peter Ganine in 1961. [10] The design retained the 64 squares of a traditional chessboard, but distributed them onto separate platforms in a hierarchy of spatial levels, suggesting to audiences how chess adapted to a future predominated by space travel. Rules for the game were never invented within the series [11] – in fact, the boards are sometimes not even aligned consistently from one scene to the next within a single episode.

The Tri-D chessboard was further realized by its inclusion in the Star Trek Star Fleet Technical Manual by Franz Joseph, who created starting positions for the pieces and short, additional rules.

Rules development

The complete Standard Rules for the game were originally developed in 1976 by Andrew Bartmess (with encouragement from Joseph) and were subsequently expanded by him into a commercially available booklet. [12] A free summary in English of the Standard Rules is contained on Charles Roth's website, including omissions and ambiguities regarding piece moves across the four Tri‑D gameboard 2×2 attack boards.

A complete set of tournament rules for Tri-Dimensional Chess written by Jens Meder is available on his website. Meder's rules are based on FIDE's rules more than Andrew Bartmess' Standard Rules, with some deviations too. A repository of Tournament Rules games can be found on the website of Michael Klein.

Board details

Star trek chessboard.JPG
The Tri‑D chessboard
Parmen graphic.jpg
Playing Parmen

Plans for constructing a Tri‑D chessboard can be found on The Chess Variant Pages , as well as in Bartmess' Tri‑D Chess Rules. Details for building a travel-size board are included on Meder's website.

Software

There is software for playing Tri‑D Chess. Parmen (potentially named after a lead character in the episode "Plato's Stepchildren") is a Windows application written by Doug Keenan and available free on his website. A free Android version of Tri‑D Chess is offered by AwfSoft.

Other three-dimensional chess variants

Parallel Worlds Chess Parallel Worlds Chess init config.png
Parallel Worlds Chess

In fiction

As well as in Star Trek, multi-dimensional chess games are featured in various fictional works, usually in a futuristic or science fiction setting. Examples include Nova, Blake's 7 , UFO, Starman Jones , Unreal 2 , the Legion of Super-Heroes franchise, Doctor Who , The Big Bang Theory , and The Lego Movie . The concept is parodied in Futurama as "tridimensional Scrabble ". [16]

Notes

  1. There is some discussion whether this game should be called "Tri-Dimensional Chess" as in the Star Trek Star Fleet Technical Manual [7] or "Three-Dimensional Chess" as in The Star Trek Encyclopedia [8] and as on Memory Alpha.
  2. "Alice Chess, a well-considered variant, may also be classified as a 3‑D game." [13] "In a sense, it is a three-dimensional game, since the board can be thought of as measuring 8×8×2 (in squares)." [14]

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References

  1. Pritchard (2007), p. 229.
  2. Pritchard (2007), p. 93.
  3. e.g.
    • "Obama is playing three-dimensional chess". Daily Kos . Kos Media, LLC. Retrieved 24 July 2017.
    • "The enduring appeal of seeing Trump as chess-master in chief". The New York Times Magazine . The New York Times Company. 2017-05-31. Retrieved 25 July 2017.
    • "How the Ukrainian crisis is like three-dimensional chess". Monkey Cage. Washington Post. 2015-03-15. Retrieved 2018-08-15.
  4. Dickins (1971), p. 16.
  5. Pritchard (1994), p. 305.
  6. Dickins (1971), p. 17.
  7. Schnaubelt (1975), p. T0:03:98:3x.
  8. Okuda, Okuda & Mirek (1997), p. 342.
  9. Pritchard (2007), p. 226.
  10. "Vintage Chessmen by Peter Ganine". Dansk the Night Away. 12 October 2011. Retrieved 2 June 2014.
  11. Okuda, Okuda & Mirek (1997), p. 509.
  12. Bartmess, Andrew (2005). The Federation Standard Tri‑D Chess Rules (Revision 5.0 ed.).
  13. (Pritchard 1994:305)
  14. (Schmittberger 1992:197)
  15. Pritchard (2007), p. 227.
  16. "3‑D Scrabble - The Infosphere, the Futurama Wiki". theinfosphere.org. Retrieved 2019-10-11.

Bibliography

Further reading

Raumschach
Star Trek Tri‑D