Chesquerque is a chess variant invented by George R. Dekle Sr. in 1986. [1] [2] The game is played on a board composed of four Alquerque boards combined into a square. Like Alquerque, pieces are positioned on points of intersection and make their moves along marked lines (similarly to xiangqi); as such, the board comprises a 9×9 grid with 81 positions (points) that pieces can move to.
Chesquerque was included in World Game Review No. 10 edited by Michael Keller. [3]
The dimensions of the board are 9 rows by 9 columns. All the standard chess pieces are present, plus one additional pawn and one archbishop fairy piece per side. The pieces move in ways specially adapted to the Alquerque-gridded board; these moves differ slightly from those in regular chess. [4]
The starting setup is shown above. Like in standard chess, White moves first and the objective of the game is to checkmate the opponent's king. Other standard chess conventions also apply.
Each chesquerque piece has two different sets of possible valid moves, depending on whether said piece is standing on a point that has one or more diagonal connections ("with diagonals") or one that has no diagonal connections ("without diagonals"). In general pieces cannot move diagonally from points without diagonal markings.
| Piece type | On points without diagonals | On points with diagonals |
|---|---|---|
| King | W | KimsO3 |
| Queen | R | RB |
| Rook | R | RF |
| Bishop | W | BW |
| Knight | t[WF] | t[FW] |
| Archbishop | Wt[WF] | BWt[FW] |
| Pawn | fWimfnD | mfWcefFimfnD |
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, fairy pieces vary mostly in the way they move, but they may also follow special rules for capturing, promotions, etc. Because of the distributed and uncoordinated nature of unorthodox chess development, the same piece can have different names, and different pieces can have the same name in various contexts. Most are symbolised as inverted or rotated icons of the standard pieces in diagrams, and the meanings of these "wildcards" must be defined in each context separately. Pieces invented for use in chess variants rather than problems sometimes instead have special icons designed for them, but with some exceptions, many of these are not used beyond the individual games for which they were invented.
Janggi, sometimes called Korean chess, is a strategy board game popular on the Korean Peninsula. The game was derived from xiangqi, and is very similar to it, including the starting position of some of the pieces, and the 9×10 gameboard, but without the xiangqi "river" dividing the board horizontally in the middle.
Dragonchess is a three-dimensional fantasy chess variant created by Gary Gygax, co-creator of the famed role-playing game Dungeons & Dragons. The game was introduced in 1985 in issue No. 100 of Dragon Magazine.
Hasami shogi is a variant of shogi. The game has two main variants, and all Hasami variants, unlike other shogi variants, use only one type of piece, and the winning objective is not checkmate. One main variant involves capturing all but one of the opponent's men; the other involves building an unbroken vertical or horizontal chain of five-in-a-row.
Tenjiku shogi is a large-board variant of shogi. The game dates back to the 15th or 16th century and was based on the earlier chu shogi, which itself was based on dai shogi.
Maka dai dai shōgi is a large board variant of shogi. The game dates back to the 15th century and is based on dai dai shogi and the earlier dai shogi. The three Edo-era sources are not congruent in their descriptions of the pieces not found in smaller games. Apart from its size and number of pieces, the major difference from these smaller games is the "promotion by capture" rule. A more compact modern proposal for the game is called hishigata shogi.
Hexagonal chess is a group of chess variants played on boards composed of hexagon cells. The best known is Gliński's variant, played on a symmetric 91-cell hexagonal board.
Sannin shōgi, or in full kokusai sannin shōgi, is a three-person shogi variant invented circa 1930 by Tanigasaki Jisuke and recently revived. It is played on a hexagonal grid of border length 7 with 127 cells. Standard shogi pieces may be used, and the rules for capture, promotion, drops, etc. are mostly similar to standard shogi. While piece movement differs somewhat from standard shogi, especially in the case of the powerful promoted king, the main difference in play is due to the rules for voluntary and mandatory alliance between two of the three players.
Okisaki shogi is a modern variant of shogi. It was developed by Masayuki Nakayachi c. 1996 from suggestions by German chess player Ralph Blockhaus.
Rhombic chess is a chess variant for two players created by Tony Paletta in 1980. The gameboard has an overall hexagonal shape and comprises 72 rhombi in three alternating colors. Each player commands a full set of standard chess pieces.
Triangular chess is a chess variant for two players invented by George R. Dekle Sr. in 1986. The game is played on a hexagon-shaped gameboard comprising 96 triangular cells. Each player commands a full set of chess pieces in addition to three extra pawns and a unicorn.
EuroShogi is a shogi variant invented by Vladimír Pribylinec starting in 2000. The game developed from an early version of chess variant Echos in 1977, leading to Cubic Chess, then later to Cubic Shogi, and finally to EuroShogi. Instead of the classic figures, 18 black and 18 white cubes are used, which are on two opposing sides without symbols. The other two cubes on the opposite sides have one white and one black symbol. The other opposing sides are the same symbols of the opposite color - their promotion is indicated by a circle around symbol. Symbol on top of its mobility. The pieces are placed on the board so that they are oriented towards players without any symbolic surfaces. Plays on a board with 8x8 fields of the same color.
Hexshogi is a shogi variant for two players created by George R. Dekle Sr. in 1986. The gameboard comprises 85 hexagonal cells. The game is in all respects the same as shogi, except that piece moves have been transfigured for the hexagonal board-cell geometry.
Masonic chess is a chess variant invented by George R. Dekle Sr. in 1983. The game is played on a modified chessboard whereby even-numbered ranks are indented to the right—resembling masonry brickwork. The moves of the pieces are adapted to the new geometry; in other respects the game is the same as chess.
Tri-chess is the name of a chess variant for three players invented by George R. Dekle Sr. in 1986. The game is played on a board comprising 150 triangular cells. The standard chess pieces are present, minus the queens, and plus the chancellor and cardinal compound fairy pieces per side.
Three-man chess is a chess variant for three players invented by George R. Dekle Sr. in 1984. The game is played on a hexagonal board comprising 96 quadrilateral cells. Each player controls a standard army of chess pieces.
Cross chess is a chess variant invented by George R. Dekle Sr. in 1982. The game is played on a board comprising 61 cross-shaped cells, with players each having an extra rook, knight, and pawn in addition to the standard number of chess pieces. Pieces move in the context of a gameboard with hexagonal cells, but Cross chess has its own definition of ranks and diagonals.
Quatrochess is a chess variant for four players invented by George R. Dekle Sr. in 1986. It is played on a square 14×14 board that excludes the four central squares. Each player controls a standard set of sixteen chess pieces, and additionally nine fairy pieces. The game can be played in partnership or all-versus-all.
Congo is a chess variant invented by Demian Freeling in 1982 when he was nearly 8 years old. His father encouraged him to design a variant using a 7×7 gameboard. Demian was already familiar with chess and xiangqi, and the result blends some features from both. Congo became the second-most popular chess variant at the Fanaat games club in Enschede, the Netherlands.
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