Side-Counting Sevens: ...

[ZenMaster_Flash]

I was recently attacked for having a "secret" side-count.
That is NOT true ~ especially since I teach my students
(who have ready access to playable pitch games) my
Side Count for Sevens to add to my Side Count for Aces:

This was the last mathematical exercise:

There are just nineteen (19) hands to adjust.

Note: If you are befuddled by me, please take a moment to
review P. Griffin's chapter on this topic, where heshowed us
how, beyond Aces, it is sevens (7's) that provide most of the
fineenhancement to the Playing Efficiency to be had.

Note that Don's "Illustrious 18" captures about 90% of what
is available for P.E.

Play	N/(N- k)*Ek*SSp/ Ip	Adjustme nt for 7counting 7 as 1	Ne adjustmen t factor	Result	Comment
14 V10	7.3774312	1	6.3774312	Reduce RC by 6 for each excess 7 remaining	7 is invaluable as it can change a low EV hand to a winning hand
13V10	7.0777778	1	6.0777778	Reduce RC by 6 for each excess 7 remaining	7 is invaluable as it can change a low EV hand to a winning hand
15 V9	-3.726168	1	-4.726168	Add RC by 5 for each excess 7 remaining	7 can only partially help here- you still have a stiff but it can change the dealer hand to a bustable 16
16V9	-3.873181	1	-4.873181	Add RC by 5 for each excess 7 remaining	7 can only partially help here- you still have a stiff but it can change the dealer hand to a bustable 16
A2V3	0.1278808	1	-0.872119	Add RC by 1 for each excess 7 remaining	7 is valuable to both you and the dealer, the already high EV hand becomes better
A4V3	3.7536232	1	2.7536232	Reduce RC by 3 for each excess 7remaining	Excess 7s can hurt you while it can help the dealer.Discourages doubling
A5V3	4.6610351	1	3.6610351	Reduce RC by 4 for each excess 7remaining	Excess 7s can hurt you while it can help the dealer.Discourages doubling
A6 V3	4.0894415	1	3.0894415	Reduce RC by 3 for each excess 7remaining	Excess 7s can hurt you while it can help the dealer.Discourages doubling
A7V3	3.0701241	1	2.0701241	Reduce RC by 2 for each excess 7remaining	Excess 7s can hurt you while it can help the dealer.Discourages doubling
A4V4	3.3544254	1	2.3544254	Reduce RC by 2 for each excess 7remaining	Excess 7s can hurt you while it can help the dealer.Discourages doubling
A5V4	4.0541467	1	3.0541467	Reduce RC by 3 for each excess 7remaining	Excess 7s can hurt you while it can help the dealer.Discourages doubling
A6V4	3.6288876	1	2.6288876	Reduce RC by 3 for each excess 7remaining	Excess 7s can hurt you while it can help the dealer.Discourages doubling
A7V4	3.1842277	1	2.1842277	Reduce RC by 2 for each excess 7remaining	Excess 7s can hurt you while it can help the dealer.Discourages doubling
A2V5	-2.262147	1	-3.262147	Add RC by 3 for each excess 7remaining	Excess 7s can help you and at the same time hurt the dealer. Favours doubling
A3V5	-3.711604	1	-4.711604	Add RC by 5 for each excess 7 remaining	Excess 7s can help you and at the same time hurt the dealer. Favours doubling

A2V6(S 17Game )	-2.446237	1	-3.446237	Add RC by 3 for each excess 7remaining	Excess 7s can help you and at the same time hurt the dealer. Favours doubling
A3V6(S 17Game )	-3.96653	1	-4.96653	Add RC by 5 for each excess 7remaining	Excess 7s can help you and at the same time hurt the dealer. Favours doubling
A2V6(H 17Game )	-2.371249	1	-3.371249	Add RC by 3 for each excess 7remaining	Excess 7s can help you and at the same time hurt the dealer. Favours doubling
A3V6(H 17Game )	-3.817001	1	-4.817001	Add RC by 5 for each excess 7 remaining	Excess 7s can help you and at the same time hurt the dealer. Favours doubling

[BakaFortuna]

I have read the chapter in theory. In terms of EV/hr what can a seven count provide us? Is it worth the hassle of learning?

[Jack Jackson]

Wouldnt 15,16 vs 7,8 be worth knowing too?

[Gronbog]

14 V10 ... Reduce RC by 6 for each excess 7 remaining

7 is invaluable as it can change a low EV hand to a winning hand

There are a few of these in the chart. Would you not want to increase the RC for excess 7's remaining?

Edit: I see now. Never mind. These are playing decisions not betting decisions.

[BJGenius007]

I was recently attacked for having a "secret" side-count.
That is NOT true ~ especially since I teach my students
(who have ready access to playable pitch games) my
Side Count for Sevens to add to my Side Count for Aces:

This was the last mathematical exercise:

There are just nineteen (19) hands to adjust.

Note: If you are befuddled by me, please take a moment to
review P. Griffin's chapter on this topic, where heshowed us
how, beyond Aces, it is sevens (7's) that provide most of the
fineenhancement to the Playing Efficiency to be had.

Note that Don's "Illustrious 18" captures about 90% of what
is available for P.E.

Play	N/(N- k)*Ek*SSp/ Ip	Adjustme nt for 7counting 7 as 1	Ne adjustmen t factor	Result	Comment
14 V10	7.3774312	1	6.3774312	Reduce RC by 6 for each excess 7 remaining	7 is invaluable as it can change a low EV hand to a winning hand
13V10	7.0777778	1	6.0777778	Reduce RC by 6 for each excess 7 remaining	7 is invaluable as it can change a low EV hand to a winning hand
15 V9	-3.726168	1	-4.726168	Add RC by 5 for each excess 7 remaining	7 can only partially help here- you still have a stiff but it can change the dealer hand to a bustable 16
16V9	-3.873181	1	-4.873181	Add RC by 5 for each excess 7 remaining	7 can only partially help here- you still have a stiff but it can change the dealer hand to a bustable 16
A2V3	0.1278808	1	-0.872119	Add RC by 1 for each excess 7 remaining	7 is valuable to both you and the dealer, the already high EV hand becomes better
A4V3	3.7536232	1	2.7536232	Reduce RC by 3 for each excess 7remaining	Excess 7s can hurt you while it can help the dealer.Discourages doubling
A5V3	4.6610351	1	3.6610351	Reduce RC by 4 for each excess 7remaining	Excess 7s can hurt you while it can help the dealer.Discourages doubling
A6 V3	4.0894415	1	3.0894415	Reduce RC by 3 for each excess 7remaining	Excess 7s can hurt you while it can help the dealer.Discourages doubling
A7V3	3.0701241	1	2.0701241	Reduce RC by 2 for each excess 7remaining	Excess 7s can hurt you while it can help the dealer.Discourages doubling
A4V4	3.3544254	1	2.3544254	Reduce RC by 2 for each excess 7remaining	Excess 7s can hurt you while it can help the dealer.Discourages doubling
A5V4	4.0541467	1	3.0541467	Reduce RC by 3 for each excess 7remaining	Excess 7s can hurt you while it can help the dealer.Discourages doubling
A6V4	3.6288876	1	2.6288876	Reduce RC by 3 for each excess 7remaining	Excess 7s can hurt you while it can help the dealer.Discourages doubling
A7V4	3.1842277	1	2.1842277	Reduce RC by 2 for each excess 7remaining	Excess 7s can hurt you while it can help the dealer.Discourages doubling
A2V5	-2.262147	1	-3.262147	Add RC by 3 for each excess 7remaining	Excess 7s can help you and at the same time hurt the dealer. Favours doubling
A3V5	-3.711604	1	-4.711604	Add RC by 5 for each excess 7 remaining	Excess 7s can help you and at the same time hurt the dealer. Favours doubling

A2V6(S 17Game )	-2.446237	1	-3.446237	Add RC by 3 for each excess 7remaining	Excess 7s can help you and at the same time hurt the dealer. Favours doubling
A3V6(S 17Game )	-3.96653	1	-4.96653	Add RC by 5 for each excess 7remaining	Excess 7s can help you and at the same time hurt the dealer. Favours doubling
A2V6(H 17Game )	-2.371249	1	-3.371249	Add RC by 3 for each excess 7remaining	Excess 7s can help you and at the same time hurt the dealer. Favours doubling
A3V6(H 17Game )	-3.817001	1	-4.817001	Add RC by 5 for each excess 7 remaining	Excess 7s can help you and at the same time hurt the dealer. Favours doubling

Is this for Zen or Hi-Lo?

[Meistro123]

Edit: I see now. Never mind. These are playing decisions not betting decisions.

7's have an EOR that is positive for the player, so you wouldn't want to bet more on the basis of more sevens left either.

[ZenMaster_Flash]

"Is it worth the hassle of learning?"

When I was crunching the digits it became evident to me that it is powerful
in SD and great in DD, but rapidly loses power in a shoe game, although I
would (perhaps) use it in a Four Decker, though I haven't seen same in 4ever.

Diminishingreturns is inversely proportional to the number of decks in play.
Highly correlated but not perfectly linear, I no longer have any of my original data. This is easy to illustrate by using a C.A. or a simulation to get valid reliable results. The data used in Griffin's 'Theory of Blackjack...' provides a bit of inaccuracy, (especially with pair-splits) because his data is for one
[and only one] single decision. This provides perfect data results for most Double/Hit decisions, as a 4th card is not possible. The inaccuracy is most significant for splits, where the inability to re-split (as found in some "pitch" games) is rather costly, especially for the re_splits of 8's.

In any case, knowledge of how to be a little more accurate had permitted me to profit nicely spreading 4-1 in the common DD H17 game (H.E. 0.40%) and 3-1 in high stakes DD S17 games (H.E. 0.19%). Admittedly my net profits were slight, but when I did go to 5-1 and 4-1 respectively, the difference in (cash) results, was stronger than expected.

[ZenMaster_Flash]

"Is this for Zen or Hi-Lo?"

Neither. It is for Hi-Opt II.

[SpikeBJ]

lol

[ZenMaster_Flash]

"7's have an EOR that is positive for the player"

These are adjustments for Playing Purposes only;
The E.O.R. of a seven is like that of a deuce ~ weak.

[BJGenius007]

Neither. It is for Hi-Opt II.

If it is for Hi Opt II, then Zen users can still use them, just not as effective. For Hi-Lo users, these parameters need to be cut in half in order to use them. (Because face card weighs two in Hi-Opt II and Zen but only one in Hi-Lo.) Also again, not as effective.

Thanks for the quick response.

[ZenMaster_Flash]

Correct, though the remaining hand-matchups are far more common.

[seriousplayer]

For Hi-Lo users, these parameters need to be cut in half in order to use them. (Because face card weighs two in Hi-Opt II and Zen but only one in Hi-Lo.) Also again, not as effective.

Thanks for the quick response.

For Hi-lo users side counting sevens the improvement for SCORE to over 5% in a six deck game. I would recommend for Hi-lo users who don't want to move to a level 2 count to side sevens to improve performance in BC and IC. Changing the insurance index would improve your PE performance. Side counting sevens would bring down the insurance index to +2 instead of +3 using Hi-lo.