Skip to content
H17Sign in

Hi-Lo · Strategy · Bankroll

Build the skills.
Understand the numbers.

Practice card counting and blackjack decisions until they are automatic, then see how your game and bet spread shape expected results and bankroll risk.

Free, no sign-up. Guest progress stays on this device; an account adds backup and sync.

Count along · Hi-Lo

4 / 52 cards
  1. 6♣♣6♣
    +1
  2. 3♣♣3♣
    +1
  3. A♥♥A♥
    -1
  4. 10♣♣10♣
    -1

Running count

0

Dealt 10 of clubs.

Low cards (2–6) add one, high cards (10–A) subtract one, 7–9 are neutral. A full deck always counts back to zero.

116.5B

simulated rounds behind every EV and risk figure

9

audited deck and penetration profiles

10

focused drills, from first card to timed exam

3

casino table games with their own analyzers

A path, not a pile of tools

From the first card to a full shoe.

Each skill builds on the last. Start where you are; every drill keeps its own history so you can see what needs work.

  1. 01

    Learn the count

    Keep the running count through realistic card groups, then convert it to a true count.

  2. 02

    Make the right play

    Turn basic strategy into reflex, then learn when the count changes the decision.

  3. 03

    Put it together

    Count, bet, and play a whole shoe with coaching, then prove it in a timed exam.

  4. 04

    Size your bets

    Build a bet ramp for a real game and see its edge, variance, and risk of ruin.

Reference

Strategy charts for your exact rules.

Change decks, soft 17, doubling, and surrender, and every cell updates. Index plays sit right on the grid. Free to read and print.

Basic strategy preview for hard totals, six decks, dealer hits soft 17
Hand2345678910A
16SSSSSHHHHH
15SSSSSHHHHH
13SSSSSHHHHH
12HHSSSHHHHH
11DDDDDDDDDD
10DDDDDDDDHH

Hard totals · 6 decks · H17 · DAS

Open the full charts

Analysis

Know what your spread is worth, and what it risks.

Every figure comes from audited per-true-count simulation data, labelled with the exact rules it covers. Nothing is extrapolated to games the data does not describe.

  • Edge and hourly EVFor any ramp, wong-in point, and penetration.
  • Risk of ruinLifetime and trip-length, with the bankroll it implies.
  • Session simulationCard-by-card shoes or a fast approximation.
  • Session journalCompare real results with the EV you actually played.
See the analysis tools

Beyond blackjack

Study the carnival games too.

All games →

Twenty cards, about two minutes.

The starter drill walks you through your first running count with a checkpoint every five cards. No account, no setup.

Start the starter drill

CountLab · Blackjack training and analysis. For education; no real-money play.