External LinkSince the original link to Off Board Chess Pieces is broken, the link now goes to an archived copy at the Internet Archive:
Off Board Chess Pieces
Each side has off board two pieces called a ROOK EXTRA which can be used only once in a game.IT HAS NO MOVES. it can be played in the players turn at any time onto a vacant squared. no other piece can pass through this blocked square.
By Ronald Drinning.
Web page created: 2003-09-20. Web page last updated: 2003-09-20
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