Zebra (chess)
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The zebra is a
fairy chess piece A fairy chess piece, variant chess piece, unorthodox chess piece, or heterodox chess piece is a chess piece not used in conventional chess but incorporated into certain chess variants and some chess problems. Compared to conventional pieces, fair ...
that moves like a stretched
knight A knight is a person granted an honorary title of knighthood by a head of state (including the Pope) or representative for service to the monarch, the church or the country, especially in a military capacity. Knighthood finds origins in the Gr ...
. It jumps three squares horizontally and two squares vertically or three squares vertically and two squares horizontally, regardless of intervening pieces; thus, it is a (2,3)-leaper. A lame zebra, which moves one step orthogonally and then two steps diagonally outwards and can be blocked by intervening pieces, appears as the elephant in janggi.


Movement


Value

The zebra by itself is worth just below two
pawn Pawn most often refers to: * Pawn (chess), the weakest and most numerous piece in the game * Pawnbroker or pawnshop, a business that provides loans by taking personal property as collateral Pawn may also refer to: Places * Pawn, Oregon, an his ...
s (appreciably less than a knight) due to its restricted freedom of movement on an 8×8 board. Its larger move is the main reason why it is weaker than a
camel A camel (from: la, camelus and grc-gre, κάμηλος (''kamēlos'') from Hebrew or Phoenician: גָמָל ''gāmāl''.) is an even-toed ungulate in the genus ''Camelus'' that bears distinctive fatty deposits known as "humps" on its back. C ...
on an 8×8 board, even though the camel is
colorbound This glossary of chess explains commonly used terms in chess, in alphabetical order. Some of these terms have their own pages, like ''fork'' and ''pin''. For a list of unorthodox chess pieces, see Fairy chess piece; for a list of terms specific t ...
and the zebra is not. A
king King is the title given to a male monarch in a variety of contexts. The female equivalent is queen, which title is also given to the consort of a king. *In the context of prehistory, antiquity and contemporary indigenous peoples, the tit ...
, a
bishop A bishop is an ordained clergy member who is entrusted with a position of authority and oversight in a religious institution. In Christianity, bishops are normally responsible for the governance of dioceses. The role or office of bishop is ca ...
, and a zebra can force
checkmate Checkmate (often shortened to mate) is any game position in chess and other chess-like games in which a player's king is in check (threatened with ) and there is no possible escape. Checkmating the opponent wins the game. In chess, the king is ...
on a
bare king In chess and chess variants, a bare king (or lone king) is a game position where one player has only the king remaining (i.e. all the player's other pieces have been ). Effect on the game Historical In some old versions of chess, such as "baring ...
; a king, a knight, and a zebra cannot; and a king, a camel, and a zebra cannot. The
rook Rook (''Corvus frugilegus'') is a bird of the corvid family. Rook or rooks may also refer to: Games *Rook (chess), a piece in chess *Rook (card game), a trick-taking card game Military * Sukhoi Su-25 or Rook, a close air support aircraft * USS ...
versus zebra endgame is a win for the rook. (All endgame statistics mentioned are for the 8×8 board.) As a component of other pieces, the zebra has about the same value as the knight (both pieces can move to eight squares). Its long move carries the danger of causing unstoppable attacks in the
opening Opening may refer to: * Al-Fatiha, "The Opening", the first chapter of the Qur'an * The Opening (album), live album by Mal Waldron * Backgammon opening * Chess opening * A title sequence or opening credits * , a term from contract bridge * , ...
and winning large amounts of
material Material is a substance or mixture of substances that constitutes an object. Materials can be pure or impure, living or non-living matter. Materials can be classified on the basis of their physical and chemical properties, or on their geologi ...
.
Ralph Betza Ralph Betza (born 1945) is a FIDE Master and inventor of chess variants such as Chess with different armies, Avalanche chess, and Way of the Knight. Invented chess variants * Multiplayer Chess (date unknown) * High-Low Chess (1968) * Strang ...
opined that the zebra's move was too large to be functional on an 8×8 board and that only on a 10×10 board or larger would it be worth its ideal value of about a knight.


See also

*
Camel (chess) The camel or long knight is a fairy chess piece with an elongated knight move.Piececlop ...
*
Giraffe (chess) The giraffe is a fairy chess piece with an elongated knight move.Piececlopedia: Gira ...


References


Piececlopedia: Zebra
by
Hans Bodlaender Hans Leo Bodlaender (born April 21, 1960) is a Dutch computer scientist, a professor of computer science at Utrecht University. Bodlaender is known for his work on graph algorithms and parameterized complexity and in particular for algorithms rela ...
, ''
The Chess Variant Pages ''The Chess Variant Pages'' is a non-commercial website devoted to chess variants. It was created by Hans Bodlaender in 1995. The site is "run by hobbyists for hobbyists" and is "the most wide-ranging and authoritative web site on chess variants" ...
''
Endgame statistics with fantasy pieces
by Dave McCooey, ''
The Chess Variant Pages ''The Chess Variant Pages'' is a non-commercial website devoted to chess variants. It was created by Hans Bodlaender in 1995. The site is "run by hobbyists for hobbyists" and is "the most wide-ranging and authoritative web site on chess variants" ...
''
Ideal and Practical Values (part 4): Odds and Ends
by
Ralph Betza Ralph Betza (born 1945) is a FIDE Master and inventor of chess variants such as Chess with different armies, Avalanche chess, and Way of the Knight. Invented chess variants * Multiplayer Chess (date unknown) * High-Low Chess (1968) * Strang ...
, ''
The Chess Variant Pages ''The Chess Variant Pages'' is a non-commercial website devoted to chess variants. It was created by Hans Bodlaender in 1995. The site is "run by hobbyists for hobbyists" and is "the most wide-ranging and authoritative web site on chess variants" ...
'' {{Chess piece Fairy chess pieces