Fox Hunt

A game for 2 players, where players take it in turns to be the fox and the hound.  The winner is the player who gets the furthest round the board on their turn as the fox.  The fox goes first and starts on 20.  The player throws 3 darts and has to hit a double 20 then a single 20 in order to move on.  The fox moves counterclockwise around the board, hitting first the double and then the single of each number.  After 3 throws it's the hound's turn.  This player starts on 18 and has to hit a double 18 in order to advance.  The hound moves in a counterclockwise direction by hitting a double on each number.  After 3 throws it's the fox's turn again and so on.  The round is over if the fox manages to get all the way round the board back to 20 ie. back to its burrow, or if the hound captures the fox by hitting a double of the number the fox is on.