Blackjack 15 Vs 7



OneAngryDwarf
Blackjack 15 vs 7 ultimateI notice quite a few 'ploppies' (as card counters like to call casual blackjack players, though I'm far more of a ploppy than a counter myself) like to stand on the worst stiff hands, 15 & 16, against a dealer's 7. I guess they think it's not worth it to risk busting against a relatively weak dealer upcard, which does have a certain logic to it, admittedly. Still, it does go against the common basic strategy, so what exactly is the cost of doing this? Is it significant, or is it as negligible as standing on 16 vs. 10?
'I believe I've passed the age/of consciousness and righteous rage/I've found that just surviving was a noble fight... I once believed in causes too/I had my pointless point of view/And life went on no matter who was wrong or right...' --Billy Joel
  1. Hit a hard 15 and hard 16 if the dealer is showing 7, 8, 9, T or A. Stand if the dealer is showing 2, 3, 4, 5 or 6.
  2. Here's the situation: You're playing in a multiple deck game and receive a six and a ten for a two card total of 16, which you play against the dealer's upcard of seven.
  3. On 15 (10,5) vs 7, the value of hitting is -0.368927, whereas the value of standing is -0.475708. The numbers for 16 are a bit closer together but similar. The reason of course is if you make a hand of 17-21 against a 7 you are very likely to win (or push).

Basic strategy says to HIT A-2 against a 4, but if the true count is 3 or higher, you should double.) A-2 vs. (Don’t get confused here. Basic strategy says DOUBLE A-2 against a 5, but if the count is at all negative, just hit it; double only when the count is 0 or higher.) A-2 vs.

Blackjack

Blackjack 16 Vs 7

pocketaces
Far more significant. On 15 (10,5) vs 7, the value of hitting is -0.368927, whereas the value of standing is -0.475708. The numbers for 16 are a bit closer together but similar.
The reason of course is if you make a hand of 17-21 against a 7 you are very likely to win (or push). Against a 10, you still lose a lot even if you make a hand of 17, 18, or 19, so hitting has less value.
A 7 is only a 'weak dealer card' if you have made a hand of 17-21. Then it's great. Otherwise, it busts only slightly more often than a 10. You should never stand on any stiff hand against it, it's not even near borderline.
BlackjackBlackjack
OneAngryDwarf
Makes sense. Thanks.

Blackjack 15 Vs 7 Inch

'I believe I've passed the age/of consciousness and righteous rage/I've found that just surviving was a noble fight... I once believed in causes too/I had my pointless point of view/And life went on no matter who was wrong or right...' --Billy Joel

Blackjack 15 Vs 7 Mm

pacomartin

Blackjack 15 Vs 7 Pro

It is a very common mistake. It just feels bad to bust when the dealer only has a 7. Wizard of Odds appendix 9 tells you all the expected values, so you can look up how much of a mistake it would be to go against strategy. However, the previous answer is correct. Standing on a dealer 7 is much worse than standing on a dealer 10 when you have a hard 16.