Read the hand
Identify hard totals, soft totals, and pairs before comparing your hand with the dealer’s upcard.
Free educational practice
Blackjack Basic Strategy & Hi-Lo Card Counting Trainer
Build accurate decisions one hand at a time. Third Base grades every hit, stand, double, and split against the selected table rules while a real multi-deck shoe keeps the running and true counts moving.
No account, deposit, prizes, or real-money wagering.
Start trainingClick here for settings
Running
0
True
0
Decks
4.0
BankrollBank$200.00
This handHand—
Bet$0.00
StrategyStrat0 / 0
StreakStrk0
Welcome to our Blackjack trainer.
Sharpen your strategy skills and try to compete on the top 10 world ranking.
Longest streaks — no hints
High score streak!
0 correct moves in a row, no hints. Enter your initials:
Rules and shortcuts
Blackjack pays 3:2. Doubling after a split is allowed. Split aces receive one card each. The dealer peeks for blackjack. Keyboard shortcuts: H to hit, S to stand, D to double, P to split, and Space to deal.
Learn by deciding
How the blackjack trainer works
Choose the number of decks and whether the dealer hits or stands on soft 17, then deal a hand. Make the play you would make at the table. The trainer compares your decision with multi-deck basic strategy and explains the result immediately, so every round becomes a short, repeatable lesson.
Make the decision
Choose hit, stand, double, or split without looking at the optional strategy hint.
Use the feedback
Review the recommended move, keep an accuracy streak, and repeat the situations that cause mistakes.
Two skills, one shoe
Practice strategy and card counting together
Basic strategy answers what to do with the current hand. The Hi-Lo count describes how the remaining shoe is changing. Third Base tracks exposed cards, the running count, decks remaining, and the true count while you play. Hide the count when you want to test yourself, or display it while learning the system.
Hi-Lo values
+1 for 2–6, 0 for 7–9, and −1 for tens, face cards, and aces.
True count = running count ÷ estimated decks remaining.
Know the assumptions
Rules used by this trainer
Decks: Four, six, or eight
Dealer: S17 or H17
Blackjack: Pays 3:2
Hole card: Dealer peeks
Doubling: Allowed after split
Splits: Up to four hands
Third Base is an educational simulation. It does not accept wagers, connect to casinos, or promise that strategy or card counting will produce gambling profits. Casino rules and strategy can differ, so always confirm the rules of the game you are studying.