64 numbered tiles (valued from -10 to +15) are randomly distributed face down on an 8X8 grid. One tile has the Orda logo and is removed at the start as a marker. Players (columns vs. rows) alternate turns moving the marker orthogonally to any other tile, removing the tile and scoring the tile's value. The next player must move the marker from it's current location. The game ends when the marker cannot make a legal move or the board is empty. The player with the highest total wins.