Learn
Master the theory before hitting the tables
How Card Counting Works
Why different systems exist, how to choose one, and what makes them tick
Counting Systems
Hi-Lo
beginnerThe most popular and widely taught card counting system. Great balance of simplicity and effectiveness.
Balanced
Knock-Out (KO)
beginnerAn unbalanced system that eliminates the need to convert to a true count, making it simpler to use.
Unbalanced
Hi-Opt I
intermediateA balanced system that ignores Aces and 2s for a more focused count. Requires a separate Ace side count.
Balanced
Hi-Opt II
intermediateA more advanced multi-level system with higher betting correlation than Hi-Opt I.
Balanced
Omega II
advancedA powerful multi-level balanced system with high playing and betting correlation.
Balanced
Zen Count
advancedA balanced multi-level system with excellent overall correlation for both betting and playing decisions.
Balanced
Wong Halves
advancedThe most accurate level-3 system using fractional values. Extremely powerful but difficult to master.
Balanced
Basic Strategy
Learn the mathematically optimal play for every hand
Blackjack Variants
Vegas Strip
The classic Las Vegas Strip rules with 4 decks and favorable player conditions.
4 decks
Atlantic City
Standard Atlantic City rules with 8 decks and late surrender.
8 decks
European
European no-hole-card rules with 6 decks. No surrender and no peek for blackjack.
6 decks
Spanish 21
A variant using a Spanish deck (no 10-pip cards) with many bonus payouts and liberal rules.
6 decks