ThreeChess

ThreeChess
Developer(s)	ThreeChess Team
Publisher(s)	ThreeChess Team
Director(s)
Producer(s)
Designer(s)
Programmer(s)
Artist(s)
Writer(s)
Composer(s)
Series
Engine
Platform(s)
Release	June 2010
Genre(s)	Browser game Chess variant
Mode(s)	multiplayer
Cabinet
Arcade system
CPU
Sound
Display

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ThreeChess is a three-player chess variant with an associated online-play website. The game features all the familiar chess moves and rules, except to win a player must capture an enemy king instead of giving checkmate.

History of ThreeChess

The game San Guo Qi (三國棋, "Game of the Three Kingdoms") is a xiangqi variant and the earliest available for three players. One millennium after, in 1971 Robert Zubrin invented Three-Player Chess and started selling the game in the U.S. The game is quite popular in Europe according to many blogs and websites, and is sold in several countries. In 2010 Rumen Rachkov, Stanislav Popov, and Georgi Semerdjiev created the first online version of chess for three players and named it ThreeChess. The project started in order to participate in the Junior Achievement's Bulgaria Best Graduate Company Competition 2010. The team took first place in Bulgaria, and as domestic champions became qualified for JA-YE Europe Enterprise Challenge 2010, winning the Intel Innovation Award with ThreeChess. The website started on July 1, 2010; play is free and open to everyone.

Description

ThreeChess initial setup; White moves first, play proceeds counterclockwise

ThreeChess is a game for three players, played on a hexagonal-shaped board containing 96 squares of alternating colors. Each player owns the same 16 pieces as in normal chess. The game is played online in Free for All mode, where players compete independently (not in teams).

As in normal chess, check is a direct attack by an enemy piece on a king, and checkmate is a condition of check that a king cannot escape. Unlike normal chess however, checkmate does not win or end the game. (When a player is in checkmate he loses his turn to move. If that player is later freed from the checkmate, he may move again.) The game ends by the capture of a king: the first player to capture an enemy king wins the game.

Starting a game

At the beginning of the game the chessboard is laid out so that each player has a white (or light) colored square at his lower, right-hand side. The pieces are arranged the same way for each game: the queen goes to the left of the player's king, next are the bishops, then knights, then rooks in the corners. The second row (rank) is filled with pawns.

Players choose colors by any agreed method. White moves first, followed by Green, then Black, then White again, in a counterclockwise direction. Play continues to alternate in this manner for the entire game.

Rules

Check, checkmate and capture

As in normal chess there are only three ways a king can get out of check:

1. move to a safe square (except castling out of check is not permitted);
2. block the check with another piece;
3. capture the checking piece.

If a player has no legal move to escape check, that player is checkmated and must pass his turn and wait. Meanwhile, another player may save the checkmated player with a move that removes the checkmate condition. (A likely try, since otherwise the opponent who gave checkmate may simply capture the king next move to end and win the game.)

Castling

Castling is performed the same, and with same conditions as, castling in normal chess. Castling to the right is called rightside castling in ThreeChess (kingside castling in normal chess); castling to the left is called leftside castling (queenside castling in normal chess).

En passant

En passant captures are performed the same as in normal chess.

Pawn promotion

Pawns promote when reaching the other side of the board the same as in normal chess.

Draws

Similar to normal chess, there are five ways a game may be drawn without producing a winner:

1. a player is stalemated (it is a player’s turn to move, but his king is not in check and he has no legal move);
2. a player may declare a draw if the same exact position repeats three times (not necessarily consecutively);
3. there is insufficient material on the board to force checkmate (for instance, a king and bishop vs. two kings);
4. fifty consecutive moves have been played without a player moving a pawn or capturing a piece;
5. the players may simply agree to a draw.

See also

• Three-player chess

External links

• Official website
• Yalta - A Three Player Chess Variant by Daniel Lindstrvm, The Chess Variant Pages
• Three Player Chess (rendition a) ... by Mark Davis
• Three Player Chess by Hans Bodlaender, The Chess Variant Pages
• Trichess Online a three-player chess variant

This article "ThreeChess" is from Wikipedia. The list of its authors can be seen in its historical and/or the page Edithistory:ThreeChess. Articles copied from Draft Namespace on Wikipedia could be seen on the Draft Namespace of Wikipedia and not main one.

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