Shuffle tracking is an advanced technique used with card counting.
The selected sections may or may not be predetermined by observing and mapping the shuffle.
[4] Another technique related to shuffle tracking is called ace sequencing.
First, the player should know what segments the discards are likely to appear relatively intact after a shuffle.
Although critically acclaimed on its release in 2004, it was later discovered by Arnold Snyder that some of the mathematical theory in the book was faulty.