Question about Basic Strategy play in double deck.
Quote: WinoMy question relates to the Basic Strategy chart for double deck where it says to split 6s against dealer's 7 if double after split is allowed otherwise hit. And in the same way to split 7s against dealer's 8. Does card composition make so much of a difference in double deck and if so how/reasoning? Would the computer not worry about player getting two 16s and losing against dealer's 17 or two 17's and dealer getting 18 rather than hitting in both situations as in 6 deck basic strategy instead? I have been searching the internet without success. Thank you for your help.
Perhaps I'm wrong. But my intuition:
66v7: Because your hand is composed of two 6's...it is now that much harder to get another 6, thus making 18, which should be a winning hand against a 7. In multi-deck, you have a much better chance at getting another 6, for 18, for a winning hand.
77v8: Same thing, another 7 gets you to 21, which is an awesome hand.
You could get dealt a T on both of your splits, which would suck. But you could also get dealt a 3-5 (4,5 for 66v7, or 3v4 for 77v8) which would mean you'd double down, since you'd have 10 or 11 vs 7 or 8.
Ultimately, I've come conclude: Trust the math & The math is right.
If you're able to simulate the situation, go ahead.
I've always wondered about certain hands, but as of yet, I have never found a fault in a proper strategy (ie: their math was wrong) from a recognized source. Although, it can be useful and nice to know the math behind it.
Some plays are borderline and really don't make a difference, while others have a significant difference. The stupid rarities, like splitting 99v7 or 99vA (at a true 2 or maybe 3?) or doubling 10vT or 10vA (true 4?) occur so infrequently and have such little value.....it doesn't matter what you do! Other hands, like insurance.....those have a big impact on your expected win/loss.
Quote: WinoMy question relates to the Basic Strategy chart for double deck where it says to split 6s against dealer's 7 if double after split is allowed otherwise hit. And in the same way to split 7s against dealer's 8. Does card composition make so much of a difference in double deck and if so how/reasoning? Would the computer not worry about player getting two 16s and losing against dealer's 17 or two 17's and dealer getting 18 rather than hitting in both situations as in 6 deck basic strategy instead? I have been searching the internet without success. Thank you for your help.
To clarify, you would split in DD and SD. Rmemeber each 7 is .3 in count. This makes more difference in 2 or less decks than more decks. Same for 6,6. The TC is higher in SD & DD than 4-8 D; so when you split you're even more likely to double down.
Quote: RSmy intuition:
66v7: Because your hand is composed of two 6's...it is now that much harder to get another 6, thus making 18, which should be a winning hand against a 7. In multi-deck, you have a much better chance at getting another 6, for 18, for a winning hand.
My intuition says otherwise.
You're looking to draw a (A, 2), 3, 4, or 5 and double. (A & 2 in parenthesis, because that's not really BS, but ... well, I see quite a few gambler types do it.) None of these draws are particularly helpful to the 12. The ability to double on a (9 or) 10 or 11 vs 7 makes it worthwhile to split.
If you do draw a 6, you resplit. (At this point, you've used at least 3/8ths of the 6's, and the second resplit is increasingly unlikely.)
Since the dealer is showing a 7, you're somewhat less likely to draw a 7 for 19 up front.
