As several people asked for the reference to the guy who perfected a system for playing roulette in which one "neither wins or loses", he was Marcel Duchamp and it happened in 1924. This is on page 126 of the Eudaemonic Pie by Thomas Bass. Of course, as several people pointed out, there are a large number of ways to break even in roulette. So if you have bad money that needs laundered, why not bet evenly on red and black each time. Or even easier, buy 10,000 dollars worth of chips and then cash them in immediately. New and different money on demand. I get the impression though that I am missing something in the discussion since no one has mentioned something like this and that merely replacing the money isn't the objective here. --Dave