LOL. Chess? Probably solitaire. There's a small chance that should CME/Reuters joint collaboration next year - FX Marketspace - wildly succeed, it might cannabalize a portion of CME FX futures if no barriers to entry and/or competition are put in place like a minimum deal size higher than the Euro FX futures 125,000 contract size. Not sure if arbing between the two (futures and cash) will help keep the volume up either as both will list side by side on this new platform/para-exchange. My best guess is that minimum deal size will be 100,000 on FX marketspace. CME is all about domination and open access. That being the case, volume of FX Futures will slowly decay back to 2001 levels and stay there for a while. But, BBO on FX marketspace will be 1 pip because more players will be able to post bids and offers instead of just the big 10 banks and their sidekick lapdogs. That alone should compensate for the loss of futures and make migration from futures to cash a sensible choice. Only problem I see is how they're going to calculate overnight interest. The standard method or position value adjustment (sort of like a settlement) post 5pm EST? With futures, all that's built into the premium over cash.