What “basic” means
Basic strategy does not mean vague beginner advice. It is the baseline decision policy for a defined game, calculated without using information from previously played cards. It answers whether to hit, stand, double, or split from the information visible in the current hand.
A correct choice can still lose. Strategy improves the quality of a decision; it does not predict the next card or guarantee the result of one hand.
Match the chart to the rules
A strategy chart is only as accurate as its assumptions. Third Base models 4, 6, or 8 decks, dealer peek, 3:2 blackjack, doubling after split, up to four split hands, one card to split aces, and no surrender or insurance. The S17/H17 selector changes whether the dealer stands or hits on soft 17.
Do not mix charts. A single-deck, 6:5, no-DAS, European-no-hole-card, or surrender game can require different decisions.
Classify the player hand first
Hard total
An ace is absent or can count only as 1 without busting. Examples: 10+6 is hard 16; A+6+10 is also hard 17.
Soft total
An ace currently counts as 11. A+6 is soft 17 because the hand can draw one card without immediately busting.
Pair
Two equal-value opening cards may be split. Pair strategy is checked before the hand is treated as a hard or soft total.
Dealer up-card
Cards 2–6 are commonly called weak or “bust” cards; 7 through ace are stronger. That label does not replace the exact table.
Understand the action labels
- Hit: take another card and keep the hand active unless it busts.
- Stand: stop drawing and let the dealer complete the hand.
- Double: add one equal wager, receive exactly one card, then stand.
- Split: turn an eligible pair into two separately wagered hands.
When double or split is unavailable, the correct fallback may differ. The trainer checks which actions are currently legal before grading a decision.
A practical learning order
- Memorise hard 17+, hard 8 or less, and the dealer 2–6 versus 7–ace boundary.
- Add hard 9–12 exceptions, especially hard 12 versus 2/3.
- Learn pair decisions as patterns rather than treating every pair alike.
- Learn soft doubles, then the S17/H17 exceptions.
- Practise mixed hands without hints and review only the categories you miss.
Use the complete Third Base chart as a reference, then return to the interactive trainer for recall practice.
Basic strategy comes before counting
The Hi-Lo count describes how the remaining shoe differs from a fresh shoe. It does not replace basic strategy. Count-based deviations require a separate index table, and the current trainer grades its documented total-dependent basic-strategy table rather than a full set of index plays.
Continue with Card Counting Fundamentals only after ordinary decisions are consistent.
Method and sources
This guide describes the implemented Third Base decision table and is checked against the project tests. See How the Trainer Works and the strategy source. For independent comparison, Wizard of Odds publishes rule-specific blackjack strategy resources.