Knowledge check · Hi-Lo
A good quiz teaches, too
Pick a focus and difficulty. After every answer you'll see the math, not just whether you got it right.
Topic
Mixed
Intermediate · 10 questions
How this tool works
A card counting quiz that explains every answer
Topics
Choose card values, running count sequences, true count conversion (for balanced systems), betting with a 1–8 unit spread, or a mixed session. Pick beginner, intermediate or advanced, and 5, 10 or 20 questions.
How answers are checked
After each answer you see the working: the card values that were added, the decks remaining used for the division, or the count that set the bet. True counts are rounded down (floored), the same convention the rest of the site uses.
About the betting questions
The betting questions use a simple teaching ramp — 1 unit up to a true count of +1, then 2, 4, 6 and 8 units. It is a practice model to learn the idea of betting with the count, not a recommendation for any real game.
Reading your score
The results screen breaks your score down by category, so you can see whether values, conversion or betting needs work. Your best score is saved for each system.