Hi,
ok, I see. I would propery something different actually.
Have this logic implemented in one place, and then distribute the result and not the actual seed. It will be easier.
Typically, one way to go about it is the following:
save the board result online. Have your master responsible for generating the board content, and upload that content on a server or simply store the board content in a string and fire a RPC event to "OTHERS" so they can all match the board content.
If you have some php skills, this is easy to save content on a server and get it. If you don't have any php skills, then simply fire an RPC event in your game and pass a string featuring the content of the board.
Does that make sense? Implementing a seed if I think going to give you more trouble to implement than the above solution.
bye,
Jean