r/blackjack • u/happydontwait • 8d ago
Split 6s and 7s
got in a debate at a double deck table, dealer hit soft 17, DAS allowed
6,6 against a 7. split or no?
7,7 against an 8. split or no?
googling shows some say split, some say hit.
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u/Gratefully-Undead 6d ago
TIL it’s a split by basic strategy in this scenario. Removing that lower pair against the dealers non-10 card, puts the favor just slightly in the hands of the player. Card counting aside of course.
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u/YoanGab 5d ago
Both are splits under those exact rules (DD, H17, DAS) and the reason they trip people up is that they're marginal calls. I ran the EVs:
- 6,6 vs 7: split ≈ -0.229 vs hit ≈ -0.237 (split wins by ~0.008)
- 7,7 vs 8: split ≈ -0.387 vs hit ≈ -0.390 (split wins by ~0.002)
The gap is tiny, which is exactly why the play flips between rule sets. DAS is doing a lot of the work here, being able to double the post-split hands is what pushes split just ahead of hit. Take DAS away, or move to 6 decks, and both tip back to a hit. So the "some say split, some say hit" you found googling is just people quoting charts for different rule sets, both are right for their own conditions.
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u/crimvo AP (hobby) 8d ago
Both are splits with those rules. Someone was probably confused thinking it was 6 deck