Years ago, I presented in that Arnold Snyder’s forum what I consider to be the best card-counting system for blackjack. The system offers the most comprehensive information regarding the remaining cards in the deck(s). Virtually all other countingsystems report only the ratio between the high cards (especially Ten-valued cards) and low cards (especially from 2 to 6). Usually, the 7s, 8s, and 9s are not counted.
That particular blackjack card-counting system divided the values into three groups: A, B, C. The first group, A, consists of the low cards: from 2 to 6 — a total of 5 x 4 = 20 cards in a 52-card deck. The second group, B, consists of the pretty-highcards: 7, 8, 9 — a total of 3 x 4 = 12 cards in a 52-card deck. The third group, C, consists of the high cards: Ten and Ace — a total of 5 x 4 = 20 cards in a 52-card deck.
Problem always is, the count per se cannot be a bet-determining factor. However, it can be applied to alter the decisions (i.e. basic strategy) during the current round.
To that end, I improved the initial system similarly to taking insurance as I presented on the page dedicated to blackjack insurance. Thus, I disregard the Ace and divide the cards in 3 groups of equal lengths.
• A = the low group: cards 2, 3, 4, 5 (delta = 3 between the lowest and the highest card in the group)
• B = the middle group: cards 6, 7, 8, 9 (delta = 3 between the lowest and the highest card in the group)
• C = the high group: 10-valued cards (10, J, Q, K)
The norm (theoretical appearance) is the same for each group. You calculate it by dividing 12 by 3 groups: 4 cards per 12 total cards. It is very close to a quarter of a virtual deck (13). The Ace doesn't alter the norm significantly.
The quarter of a deck is strongly correlated to the ‘FFG deviation’ as calculated by the Fundamental Formula of Gambling (degree of certainty DC = 25%).
Axiomatics, you can study the system freely. The special resource is located at this address:
• https://forums.saliu.com/card-counting-blackjack.html#abc-system
• “ABC: The Best Blackjack Card-Counting System”.
Ion Saliu
Founder of Blackjack Mathematics
The Best Blackjack Player of All Time
The so-called “traditional card-counting systems” are really dangerous. They wipe out the bankrolls of the vast majority of blackjack players who count cards. Even notorious card-counting gurus admit the severe danger of such systems:
• https://groups.google.com/forum/#!topic/rec.gambling.blackjack/pcDm82yV56A
• “The Candor of Famous Blackjack Card Counters”
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