To count cards you add ‘+1’ for any cards valued at 2–6, zero for 7–9, and ‘-1′ for any 10, J, Q, K, A. It’s as simple as that. So if you see a 4, A, 6, 3, 9, 2, J, 6 on the table, the count would be ‘2’ and you are more likely to get dealt 10s or a BJ. Thus, you bet more. Anything below 0, you bet the table minimum.
A true story of 6 MIT students intensely training to count cards by their teacher with a team strategy and taking weekend trips to Las Vegas and other gambling destinations to win millions of dollars. Counting cards is not illegal.