Astronomical chess

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Astronomical chess in Libro de los Juegos F96V.jpg
Astronomical chess in Libro de los Juegos

Astronomical chess or Astrological chess [1] is a game for seven players from the book Libro de los Juegos [2] (Book of Games), written under king Alfonso X the Wise in 1283. The game was played on a round board with concentric circles. The sky, zodiac signs and planets are the elements of this chess. The book described the games and problems of playing situations in chess, dice and other board games that formed the basis of modern backgammon.

Contents

In some sources astronomical chess is called the "Zodiac". Despite the name, the game is a dice game that has nothing to do with chess. [3]

Description

The board has seven sides for seven players; within, there are 12 concentric circles representing the geocentric model of the universe. Starting from the outside and moving inward, these represent: [4] :628–630

Diagram of Escaques (Astronomical Chess) board Astronomical Chess board.svg
Diagram of Escaques (Astronomical Chess) board
  1. The stars, given by the 12 symbols of the zodiac
  2. Saturn, with 84 (12×7) spaces of alternating color
  3. Jupiter, with 72 (12×6) spaces
  4. Mars, with 60 (12×5) spaces
  5. The Sun, with 48 (12×4) spaces
  6. Venus, with 36 (12×3) spaces
  7. Mercury, with 24 (12×2) spaces
  8. The Moon, with 12 (12×1) spaces
  9. Earth: fire element as a single red ring
  10. Earth: air element as a single purple ring
  11. Earth: water element as a single white ring
  12. Earth: earth element as a brown circle

The symbols of the zodiac are arranged according to a clock face, starting with Aries in the sector between the 11 o'clock and 12 o'clock positions, proceeding anti-clockwise to Pisces in the 12–1 o'clock sector. [4] :628,629 Each zodiac sector contains 28 spaces (1+2+3+4+5+6+7), making the board equivalent to a lunar calendar. [4] :630

Each player is assigned a piece by rolling a seven-sided die; the piece personifies a different heavenly body, starting at a specific constellation within that orbit, as marked on the board: [4] :630–633

  1. The Moon, starting in Cancer (8–9 o'clock)
  2. Mercury, starting in Virgo (6–7 o'clock)
  3. Venus, starting in Taurus (10–11 o'clock)
  4. The Sun, starting in Leo (7–8 o'clock)
  5. Mars, starting in Scorpio (4–5 o'clock)
  6. Jupiter, starting in Sagittarius (3–4 o'clock)
  7. Saturn, starting in Aquarius (1–2 o'clock)

Gameplay

According to the source, players roll the seven-sided die to determine who moves first, then each rolls the seven-sided die again to determine the number of spaces they move, anti-clockwise, within their orbit. If the number of spaces moved results in the player staying within a zodiac sector, they do not win or lose any money. When they change sectors, depending on how closely they approach other sectors occupied by other players, the player may be required to pay or receive money from other player(s): [4] :633,634,655

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References

  1. Moll (ArnieChipmunk), Arne (October 2009). "Valencia lectures part 1: King Alfonso's Book of Games". Chess.com.
  2. Zischkin, Theresa (2 May 2018). "Alfonso X's Libro de los Juegos". Thinking 3D.
  3. Parlett, David (1999). The Oxford History of Board Games. Oxford University Press. ISBN   9780192129987.
  4. 1 2 3 4 5 Musser Golladay, Sonja (2007). Los Libros de Acedrex Dados e Tablas: Historical, artistic and metaphysical dimensions of Alfonso X's Book of Games (Doctor of Philosophy thesis). University of Arizona. Archived from the original on 17 July 2011.