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Rhombic chess is a
Circa 2000, Paletta created Parachess using the same board geometry but introducing additional ways to move:
These ways to move are highlighted on the board by same-colored cells.
Parachess
by Tony Paletta, ''
Rhombic chess is a chess variant
A chess variant is a game related to, derived from, or inspired by chess. Such variants can differ from chess in many different ways.
"International" or "Western" chess itself is one of a family of games which have related origins and could be co ...
for two players created by Tony Paletta in 1980.Pritchard (1994), p. 255 The gameboard
A game board (or gameboard; sometimes, playing board or game map) is the surface on which one plays a board game.
The oldest known game boards may date to Neolithic times; however, some scholars argue these may not have been game boards at all. ...
has an overall hexagon
In geometry, a hexagon (from Greek , , meaning "six", and , , meaning "corner, angle") is a six-sided polygon. The total of the internal angles of any simple (non-self-intersecting) hexagon is 720°.
Regular hexagon
A regular hexagon is de ...
al shape and comprises 72 rhombi
In plane Euclidean geometry, a rhombus (: rhombi or rhombuses) is a quadrilateral whose four sides all have the same length. Another name is equilateral quadrilateral, since equilateral means that all of its sides are equal in length. The rhom ...
in three alternating colors. Each player commands a full set of standard chess pieces.
The game was first published in ''Chess Spectrum Newsletter'' 2 by the inventor. It was included in ''World Game Review'' No. 10 edited by Michael Keller.
Game rules
The diagram shows the starting setup. As in standardchess
Chess is a board game for two players. It is an abstract strategy game that involves Perfect information, no hidden information and no elements of game of chance, chance. It is played on a square chessboard, board consisting of 64 squares arran ...
, White
White is the lightest color and is achromatic (having no chroma). It is the color of objects such as snow, chalk, and milk, and is the opposite of black. White objects fully (or almost fully) reflect and scatter all the visible wa ...
moves first and 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 ...
wins the game. Piece moves are described using two basic types of movement:
* ''Edgewise''—through the common side of adjoining cells. If an edgewise move is more than one step, it continues in a straight line from the side of a cell through its opposite side, the line being orthogonal to these sides.
* ''Pointwise''—through the sharpest corner of a cell, in a straight line to the next cell. (The paths are highlighted on the board by same-colored cells.)
Piece moves
* A rook moves edgewise only. * A bishop moves pointwise. It can also move one step edgewise. * The queen moves as a rook and bishop. * The king moves one step edgewise or pointwise. There is nocastling
Castling is a move in chess. It consists of moving the king (chess), king two squares toward a rook (chess), rook on the same and then moving the rook to the square that the king passed over. Castling is permitted only if neither the king ...
in rhombic chess.
* A knight moves in the pattern: one step edgewise followed by one step pointwise (or vice versa), away from its starting cell. Like a standard chess knight
A knight is a person granted an honorary title of a 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.
The concept of a knighthood ...
, it leaps any intervening men.
* A pawn moves forward one step edgewise, with the option of two steps on its first move. A pawn captures the as it moves. There is no ''en passant
In chess, ''en passant'' (, "in passing") describes the capture by a Pawn (chess), pawn of an enemy pawn on the same and an adjacent that has just made an initial two-square advance. This is a special case in the rules of chess. The capturi ...
'' in rhombic chess. A pawn promotes to any piece other than king when reaching (for White) and rank (for Black).
Parachess
Circa 2000, Paletta created Parachess using the same board geometry but introducing additional ways to move:
These ways to move are highlighted on the board by same-colored cells.
Piece moves
Notes
References
Bibliography * *External links
Parachess
by Tony Paletta, ''
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 variants, state=collapsed
Chess variants
1980 in chess
Board games introduced in 1980