Mrchris is pretty much accurate! The only thing that is missing is that if you can go out on either end of the chain, not only do you win, you also get what is called capicure (sp?). When this happens you slam the domino down repeatedly on both ends and scream capicure in a loud voice. As well as getting 25 extra points you also then have an extra large slurp of beer.
Matilda
Matilda