Blackjack basic strategy trainer
Drill every decision against a strategy chart. Track accuracy. Cut your mistakes to under 1%.
Drill every decision against a strategy chart. Track accuracy. Cut your mistakes to under 1%.
Basic strategy is the computer-solved optimal decision for every player hand against every dealer up-card, assuming you can see only your own cards and the dealer's first card. Solved means: for each cell in the matrix, someone has run every possible continuation of the hand and picked the action with the highest expected value. The chart you're drilling against is the output of that solver.
Rules toggles matter because they shift which action is optimal in a handful of cells. The headline figures:
0.40% with perfect basic strategy and standard 6 to 8 deck shoes.0.61%. The dealer makes more 17-to-21 hands, so you double on A-7 vs 2, you double 11 vs A, and you surrender 15 vs A.The drill tab deals random shoes and grades each decision against the chart. Score is correct decisions divided by total decisions. Streak is your current run of correct calls. The trainer remembers which cells you keep missing and surfaces them so you can drill the painful ones.
Set the rules to match the table you'll actually play. Most London 6-deck shoes are S17, DAS, no surrender. Most Vegas Strip 6-deck shoes are H17, DAS, surrender allowed. If you're not sure, ask the pit boss before you sit down. Then drill until your accuracy stays above 99% across at least 200 hands. That's the threshold at which you're playing basic strategy, not approximating it.
It's a chart trainer, not a card counter. The trainer assumes a fresh shoe at every decision, so it gives you the chart answer, not the count-adjusted answer. For the count, you want the card counter trainer. Basic strategy isn't enough to produce a long-run edge. It just keeps the house edge as low as the rules allow.