At my upcoming home game, Double Hold'em will be offered. The rules are just like Hold'em, except two boards are dealt simultaneously, and the high hand of each board wins.
Here are a few scenarios and percentages to keep in mind.
Starter - Two suited cards, including the ace:
If you magically flop the flush draw on both boards, there are now 6 flush cards accounted for, and 44 unknown cards in the deck. This means that you are 32.6% to hit your flush on board 1, and 34.6% to hit on board 2, about 10% to potentially scoop with a flush on both boards.
Starter - Any low pocket pair
You are 12% to hit your set on the first board flop, just like in holdem. Your odds go up slightly on the second board flop to 13%. That's a 25% chance, or 3 to 1, that you will hit a set on one board. If you hit your set on the first board, you have a 6% chance of hitting a set on the second flop, or about a 10% of hitting it by the river. (That's a 0.8% chance of hitting a set on both flops.)
