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Criss-Cross Count

Posted By: Nack Ballard
Date: Tuesday, 25 September 2018, at 12:38 p.m.

In Response To: Criss-Cross Count (Michael)

I'd like to know what's the statistical accuracy of this method in the range of 0-10, 10-20 and 20-30 net pip difference. Also if possible the same for the other similar methods.

If you don't make a mistake, you'll get the precisely correct count every time.

If you're referring to the probability of human error, I'm not aware if studies have been made for any pipcount system. I would venture, though, that an error is less likely, especially a large error, if one adopts a system that targets a relative count rather than two totals.

If I've misunderstood your question, please elaborate.

Many years ago, when I was practicing total counts with various systems, I double-checked my answers to those in books. One of the very few books at the time that had published pipcounts with the diagrams was New Ideas in Backgammon (Woolsey + Heinrich). Make of it what you will, but of 104 positions, the book had 3 errors in print:

#4: 151 should be 157
#31: 128 should be 127
#63: 97 should be 95

Nack

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