Object: Move all your pieces to your target positions.

Each player has 12 tokens which have to be moved to the far rank.
The large (lowest) tokens are 'moats', the intermediate ones or 'walls' and the top and smallest pieces are 'towers'.
(In the original board game they stack into each other.)
Here are the original game rules:

General Rules:
Movement is forwards, diagonally forwards or sideways.
Each 'main' board position (marked by a ring) consists if three 'minor' positions which can hold a moat, a wall and a tower.
Together such a triple (moat, wall, tower) of tokens is called a 'castle'.
A move consists of transporting a moat, wall or tower along a line to an empty minor position.
If the main position belonging to this minor position has one (two) token stored already, you earned another partial move (or 2 additional partial moves) with the same token.
The one or two additional partial moves will drag the additional one or two tokens with them. If you find another token at the target, you earn another partial move.
You have to execute all partial moves. If you earned an additional partial move and you cannot execute it, you lose.
The number of additional partial moves available will be indicated by one or two yellow markers at the left border.

Exceptions:

• You cannot carry an opponent's token - once it has left its starting zone - back to the opponent's starting zone.
  (However you are allowed to carry an opponent's token from one place in his start zone to another place in his start zone!)
• If you move to a place in your own starting zone which contains an opponent's token, then you cannot make an additional partial move from this target position.
• While your moving token is in your goal zone you can forfeit partial moves.
  (A 'pass partial' button will appear at the top left corner which you can click).
• You are not allowed to complete a castle in your goal zone if you still have a token in your start zone.

The only original rule NOT implemented here is the following:
No player may shuttle sideways between the same two points in the same or successive turns.

You win when you have occupied all your target positions.
Repetition is a loss.
To get a good game, give the computer at least five seconds per move.

Four-player version:
A zrf file has been included which plays the 4-player version; details see its game text.

Please note that there is an alternative piece set.