[QUOTE=gengar;20190827]Actually, the reason why casinos don't allow the simultaneous red-black bet is to limit gambler access to a low-volatility way to wash promo chips and coupons. It's not a house advantage issue (I've been to casinos where they do allow it!). The only reason why the numbers in your "strategy" slant positive is that you're counting the match play if you win but not if you lose.

I've actually seen a casino allow the simultaneous red-black bet when someone was trying to clear some promo chips two different times. The second time I was smart enough to bet green - the poor sap was pissed but I tipped him a chip to make him feel better.