A free, no-nonsense tool for learning blackjack basic strategy and Hi-Lo card counting, without risking real money.
Blackjack GTO simulates a standard 6-deck blackjack game with Las Vegas rules (dealer stands on soft 17, late surrender allowed). Every decision you make is checked against mathematically correct basic strategy, and mistakes are explained in plain English so you understand why the correct play is correct.
The trainer uses the Hi-Lo counting system, the most widely taught method. Cards 2–6 count as +1, 7–9 as 0, and 10–Ace as −1. The true count adjusts for decks remaining, and tells you when to raise or lower your bet.
Use the Show / Hide toggle on the count panel to practice calling the count yourself before checking your answer.
No. There is no real money involved. The bankroll is fictional and resets whenever you want. This is a pure strategy training tool, the same kind used by professional players to drill decision-making until it becomes instinct.
GTO stands for Game Theory Optimal, the mathematically perfect strategy for every hand given the dealer's upcard. In blackjack, this is called basic strategy. Playing GTO minimizes the house edge to as low as 0.5% in a 6-deck game with good rules.
Most people can memorize the core decisions in a few hours of focused practice. Blackjack GTO gives you instant feedback on every mistake, so you can drill the exceptions, like when to surrender, when to double soft hands, and when to split, until they're automatic.
Yes, card counting is legal everywhere. It's a mental skill, not cheating. Casinos can ask counters to leave or restrict their play, but it's not a crime. Blackjack GTO teaches the Hi-Lo system, the most widely used and easiest to learn counting method.
No, blackjack always has variance. Basic strategy minimizes losses over thousands of hands, but you'll still have losing sessions. The goal is to reduce the house edge as much as possible so your money lasts longer and counting has more impact.
The running count is the raw Hi-Lo tally as cards are dealt. The true count normalizes it by dividing by the number of decks remaining in the shoe. True count is what actually tells you when to raise your bet. A running count of +8 with 4 decks left is only a true count of +2.