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Amazon (chess)

From Wikipedia, the free encyclopedia
An icon for the amazon used in diagrams

The amazon, also known as the queen+knight compound or the dragon, is a fairy chess piece that can move like a queen or a knight. It may thus be considered the sum of all orthodox chess pieces other than the king (because it cannot castle and does not know when it is under threat via the check rule) and the pawn (because it cannot practice en passant). The amazon can force checkmate on an enemy king without the help of any other friendly piece.

Chess moves in this article use A as notation for the amazon.

This article uses algebraic notation to describe chess moves.

Movement

[edit]
abcdefgh
8a8 black crossb8c8d8e8 black crossf8g8h88
7a7b7 black crossc7d7e7 black crossf7g7h7 black cross7
6a6b6c6 black crossd6 black circlee6 black crossf6 black circleg6 black crossh66
5a5b5c5 black circled5 black crosse5 black crossf5 black crossg5 black circleh55
4a4 black crossb4 black crossc4 black crossd4 black crosse4 A lf4 black crossg4 black crossh4 black cross4
3a3b3c3 black circled3 black crosse3 black crossf3 black crossg3 black circleh33
2a2b2c2 black crossd2 black circlee2 black crossf2 black circleg2 black crossh22
1a1b1 black crossc1d1e1 black crossf1g1h1 black cross1
abcdefgh
Moves of the amazon. It may jump to any square with a circle, or move as a rider to any square with a cross.

The amazon's movement combines those of the queen and the knight. Thus, it may move to any square on the same rank, file, or diagonal without jumping, or it may move to any of the nearest squares not on the same rank, file, or diagonal.

History

[edit]

The amazon is one of the most simply described fairy chess pieces and as such has a long history and has gone by many names.[1][a] It was first used in Turkish Great Chess, a large medieval variant of chess, where it was called the giraffe. Later, it was widely experimented with in the Middle Ages to replace the slow ferz, and it competed with the modern queen for this role; the modern queen eventually won out, as the amazon's power was deemed excessive. In Russia, the amazon persisted into the 18th century; some players disapproved of this ability to "gallop like the horse" (knight).[4][5] The book A History of Chess by H. J. R. Murray, page 384, says that one Mr. Coxe, who was in Russia in 1772, saw chess being played with the amazon.

The amazon is best known for its appearance in the chess variant Maharajah and the Sepoys, where it is the maharajah. It is royal and White's only piece.

Value

[edit]
abcdefgh
8a8b8c8d8e8f8g8h88
7a7b7c7d7e7f7g7h7 black king7
6a6b6c6d6e6f6g6h66
5a5b5c5d5 A le5f5g5h55
4a4b4c4d4e4f4g4h44
3a3b3c3d3e3f3g3h33
2a2b2c2d2e2f2g2h22
1a1 white kingb1c1d1e1f1g1h11
abcdefgh
White to move mates in one with 1.Af6# or 1.Af7#.

The amazon's value is estimated to be 12 or 13 points in the chess piece relative value system.[6] It is extremely mobile, can control every square surrounding itself in a 5×5 area, and can force checkmate by itself. In contrast, although the gryphon (or griffin) from Grande Acedrex (which moves one step diagonally before continuing outwards as a rook) would seem to have the value of two rooks (10–11 points), the squares it attacks are more dispersed, and it is more easily defended against than the amazon.

In the endgame of king and amazon versus king and empress (rook+knight compound), the amazon usually wins; however, in a few positions, the weaker side may force a draw by setting up a fortress. Such a fortress forces the side with the amazon to give perpetual check; otherwise, the side with the empress can force a simplification or give their own perpetual check. King and amazon versus king is a forced win for the side with the amazon; checkmate can be forced within four moves. In comparison, the queen requires 10 moves and the rook requires 16. In fact, the amazon does not even require its king's help to force checkmate (as an example of a checkmate position, the king is in the corner and the attacking amazon is a knight's move away from it), and this great power is the reason why it is not seen as often in chess variants as the princess or empress.

Symbol

[edit]

Both white and black symbols for the amazon were added to version 12 of the Unicode standard in March 2019, in the Chess Symbols block:

  • U+1FA4E 🩎 WHITE CHESS KNIGHT-QUEEN
  • U+1FA51 🩑 BLACK CHESS KNIGHT-QUEEN

See also

[edit]
  • Empress – the rook+knight compound
  • Princess – the bishop+knight compound
  • Queen – the rook+bishop compound

Notes

[edit]
  1. ^ Other names the piece has acquired include angel, ayanu, commander, crown prince, elephant, empress, general, giraffe, grand chancellor, maharajah, rettah, royal guard, superqueen, tetra queen, and wyvern.[2] Also omnipotent queen, and terror.[3]

References

[edit]
  1. ^ "The Piececlopedia: Amazon". www.chessvariants.com. Retrieved 2021-10-12.
  2. ^ Pritchard, D. B. (1994), "Pieces", The Encyclopedia of Chess Variants, Games & Puzzles Publications, p. 227, ISBN 0-9524142-0-1
  3. ^ Dickins, Anthony (1971) [Corrected repub. of 1969 2nd ed., The Q Press, Richmond, Surrey, England]. A Guide to Fairy Chess. New York: Dover Publications Inc. p. 13. ISBN 0-486-22687-5.
  4. ^ [1] Archived 2012-01-11 at the Wayback Machine (in Russian)
  5. ^ [2] Archived 2013-09-20 at the Wayback Machine (in Russian)
  6. ^ "Superqueen – Green Chess".

Bibliography

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