Pacru is a game of transformation, and an interaction between pieces and tiles. Tile accumulation and capture take place alongside the possibilities for attacking and defending pieces. This gives the game its unique flavour.

The board has 81 tiles, divided into nine borderlands. (There is no special significance in the grey and white shading of the tiles.) You begin with four pieces of your colour (three if 3 or 4 player game).

In your turn, you move any of your pieces --- straight ahead, or at a 45 degree angle to the direction it points. After a move, the piece remains pointing in the direction you've moved it.

When you cross a heavy border from one borderland to another, you can claim one of the tiles in the destination borderland for your colour (a borderland change). The board gradually becomes more coloured, and one way of winning the game is to reach the target number of coloured tiles first (for 2 players: 42 tiles, for 3: 28, for 4: 24).

You can move a piece by at least one tile in one go. If there are two or more tiles of your colour in the borderland, you can move anything up to that number of tiles.

You may not move onto another piece , nor onto a tile of another colour (unless in a pincer), and you cannot change a tile that is already occupied by a piece

There are some other special moves:

• Connection Jump. You can jump over another piece only by moving from one tile of your colour to another of your colour.
• Connection Change. If you move from one of your tiles to another without jumping over another piece, all the intervening tiles become your colour.
• Pincer. If two of your pieces are in such a position that they could each reach a tile occupied by an opponent, then you can remove the opposing piece and move your own onto it. You also automatically claim the tile that piece was on
• Meeting. If you move a piece so it faces directly another piece of your colour, and both are sitting on tiles of your colour, you may claim an additional tile anywhere on the board, including one of your opponent's.
• Reorientation. Instead of moving a piece, you can rotate it by 45 or 90 degrees. However, you must give up some tiles: 2 for 45 degrees, 4 for 90. (Click the purple buttons at bottom centre of board.)
• Borderland Transformation. If you end your move in a different borderland but there are no neutral tiles there, you change one of your opponents tiles, if there are any, to your own colour.

On your turn you must move or reorientate a piece. You are only allowed to reorientate if at least one of your pieces is in a position to make a legal move. If none of your pieces can make a legal move you are out the game and your pieces leave the board.

As well as winning the game by reaching the target number of tiles, you can win if you are the only player with pieces left on the board.

There is now a resign button however Pacru is a game of many changes and it is easy to make a mistake - it is often worth playing on even if you are two pieces down.

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