BlackjackInfo Blog » Announcements http://www.blackjackinfo.com/blog Blackjack and Blackjack Tournaments Fri, 21 Aug 2009 00:48:34 +0000 http://wordpress.org/?v=2.8.2 en hourly 1 New Efficiency Calculator Added http://www.blackjackinfo.com/blog/2009/08/20/new-efficiency-calculator-added/ http://www.blackjackinfo.com/blog/2009/08/20/new-efficiency-calculator-added/#comments Fri, 21 Aug 2009 00:48:34 +0000 KenSmith http://www.blackjackinfo.com/blog/?p=56 Thanks to some Flash wizardry by ChemMeister ICountNTrack, the site now has a Card Counting System Efficiency Calculator.

You can plug in any set of card counting tag values, and calculate the Betting Correlation (BC), Playing Efficiency (PE)  and Insurance Correlation (IC).

Just what are these values?  They tell you

  • How effectively a card counting system predicts what you should bet (BC).
  • How effectively the system allows you to vary your strategy decisions (PE).
  • How effectively the system indicates when you should take insurance (IC).

The idea behind these calculations originated with Peter Griffin, and are detailed in his seminal work on the mathematics of blackjack, “The Theory of Blackjack”

As a point of reference, here are some values for popular counting systems:

Counting Tags Values
System A 2 3 4 5 6 7 8 9 T BC PE IC
Hi-Lo -1 +1 +1 +1 +1 +1 0 0 0 -1 0.97 0.51 0.76
Hi-Opt I 0 0 +1 +1 +1 +1 0 0 0 -1 0.88 0.61 0.85
Wong’s Halves -1 +0.5 +1 +1 +1.5 +1 +0.5 0 -0.5 -1 0.99 0.57 0.72
K-O -1 +1 +1 +1 +1 +1 +1 0 0 -1 0.98 0.55 0.78

Using the new Efficiency Calculator at BlackjackInfo, you can calculate these values for any card counting tag values that you want.

]]> http://www.blackjackinfo.com/blog/2009/08/20/new-efficiency-calculator-added/feed/ 1 New Site Search Now Live http://www.blackjackinfo.com/blog/2009/07/28/new-site-search-now-live/ http://www.blackjackinfo.com/blog/2009/07/28/new-site-search-now-live/#comments Tue, 28 Jul 2009 22:42:15 +0000 admin http://www.blackjackinfo.com/blog/?p=52 A new site-wide search feature is now live at BlackjackInfo.  The new search feature you see in the upper right corner allows you to search five great blackjack resources, including more than 180,000 documents at the moment.

Try it out!

]]> http://www.blackjackinfo.com/blog/2009/07/28/new-site-search-now-live/feed/ 1 Welcome to the new Blackjack Blog http://www.blackjackinfo.com/blog/2004/10/19/welcome-to-the-new-blackjack-blog/ http://www.blackjackinfo.com/blog/2004/10/19/welcome-to-the-new-blackjack-blog/#comments Wed, 20 Oct 2004 01:54:00 +0000 KenSmith http://www.blackjackinfo.com/blog/2004/10/welcome-to-the-new-blackjack-blog/ Blogging is definitely hot. Everyone has a blog these days it seems. So I figured, why not? I think this might actually be a good fit for my sites. I often see news items that would be of interest, but it takes a lot of effort to write up the articles for inclusion in the next email newsletter. It takes five or six good ideas to make a newsletter, so my readers don’t see anything until I reach my quota. By using a blog instead, I can post the ideas immediately. My plan is to post at least every other day, so check in regularly.

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