Games · Blackjack · Strategy trainer
Blackjack strategy trainer
Basic strategy is the single biggest lever on the blackjack house edge — and it's just a set of correct decisions you can drill until they're automatic. Pick a category, call the play, and get instant feedback. The “correct” answer comes straight from our analytic basic-strategy solver for the rules you set, so when you change the table, the right play changes with it.
Table rules
Accuracy — Streak 0 0 / 0
Dealer shows
Your hand
What's the correct basic-strategy move?
Show the basic-strategy chart
entertainment only
New to the game or want the “why” behind the chart? Read
How to play blackjack & the real odds →
Want to see what perfect play actually returns over thousands of hands?
Head to the Blackjack simulator & play table →
How this simulation works
- Rules modeled
- Configurable: 1–8 decks or unlimited; dealer stands/hits soft 17; double after split; blackjack pays 3:2 or 6:5; late surrender; double-down restrictions (any two / 9–11 / 10–11). Drill situations cover hard totals, soft totals, and pairs.
- Assumptions
- Each drilled hand is the player's first two cards (three for hard 20) versus the dealer's upcard. The correct move is basic strategy for the exact rules selected; double/surrender are only offered (and only correct) when the rules allow them.
- Mathematical basis
- The correct play for every situation is read from a basic-strategy chart generated by our analytic EV solver (dealer outcome distribution → player expected value). The chart follows the standard deck-count-independent convention — derived on the unlimited-deck model, where the solver (including combinatorial splits) is exact — the same solver behind the simulator.
- Engine version
- blackjack 0.4 · rules artifact 2026-06-21
- Validation
- 137 fast regression tests, 4 high-sample validation tests, and a regenerated 240-rule finite-edge table; last independently reviewed 2026-06-21 (5 review passes).
- Last reviewed
- 2026-06-21