Often people wish to vary strategy based on the count. The following section lists the Illustrious 18 plays and 4 Deck S17 Index numbers per Don Schlesinger's "Attacking the Shoe" article that was published in the September 1986 issue of "Blackjack Forum".If you wish to practice, I have included a very simple Java Flashcard Practice program to get you going.
| Four Deck, S17 Illustrious 18 Indices (for High-Low Count) |
|
|---|---|
| I18 Play | High-Low Index Number |
| Insurance | +3 |
| 16 vs 10 | 0 |
| 15 vs 10 | 4 |
| 10,10 vs 5 | 5 |
| 10,10 vs 6 | 4 |
| 10 vs 10 | 4 |
| 12 vs 3 | 2 |
| 12 vs 2 | 3 |
| 11 vs Ace | 1 |
| 9 vs 2 | 1 |
| 10 vs Ace | 4 |
| 9 vs 7 | 3 |
| 16 vs 9 | 5 |
| 13 vs 2 | -1 |
| 12 vs 4 | 0 |
| 12 vs 5 | -2 |
| 12 vs 6 | -1 |
| 13 vs 3 | -2 |