The Thraex can move in two legs, the first is an orthogonal slide followed by a jump, and the second is a diagonal slide. Capturing occurs orthogonally on the first leg (red = capture).
Thraex Chess
invented and implemented by Mats Winther October 2006.
See also my homepage.
The Thraex captures like a rook, but makes non-capturing moves in two legs, by leaping orthogonally over an intervening piece and temporarily land on the empty square immediately behind the piece. From there it slides like a bishop on any of the two diagonals in the prolonged movement direction. The Thraex's value is 3, that is, the same as a Bishop or Knight. Other rules are the same as in standard chess, except for the possible promotion to Thraex. The Thraex is dependent on 'screens' for moving, but as it can capture directly on the orthogonals it can have a positional influence also when it's unable to make non-capturing moves. Thraex chess, and the new Thraex piece, were invented by undersigned, October 2006.
The Thraex was a gladiator type in ancient Rome, which was named after warriors from Thrace. The Thraex was equipped with a broad-rimmed helmet, a small round or square-shaped shield, and two thigh-length greaves. His weapon was the Thracian curved sword, or the sica.
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To play you must have installed "Zillions of Games". Either
double-click on ThraexChess.zrf or
1. Run "Zillions of Games"
2. Choose "Open Game Rules..." from the File menu
3. Select "ThraexChess.zrf" in the Open dialog and click "Open"
ThraexChess.zrf is a rules file used by the Windows program "Zillions of
Games". Zillions of Games allows you to play any number of games against
the computer or over the Internet. Zillions of Games can be purchased online.
For more information please visit the Zillions of Games website
www.zillions-of-games.com
The Thraex's movement principle. The screens, that are used for leaping, occur anywhere on the first leg. Should the screen be an enemy piece it can be captured.