"Ministers and Assassins" boardgame challenge

Win an O'Reilly book of your choice http://www.snellspace.com/blog/archives/000141.html by implementing <a href="http://www.snellspace.com/games/m_and_a/m_and_a.html">this game</a>: the game designer would have to verify that the implementation meets all of the specs for the game before he could send the book Ministers and Assassins is an abstract strategy board game somewhat reminiscent of traditional Chess. Played on a 10x10 square board, each player is given one Minister, one Assassin and eleven Guards. As in chess, each game piece must follow a few very simple rules when moving. Guards: must stay on the line intersections and may only move forward diagonally one intersection at a time and are not allowed to jump Ministers or Assassins. Guards may move to the outer edges of the game board. Ministers and Assassins: may move in any non-diagonal direction for as many open squares as possible. They are not allowed to bypass or jump any other piece, including guards. Playing the game There are three possible ways to win the game: Surround: completely surround your opponents Minister with four of your guards. Assassination: move your Assassin to a square adjacent to your opponents Minister with no intervening Guards. Invasion: move your Minister into your opponents ministers starting location. more on the site http://www.snellspace.com/games/m_and_a/m_and_a.html