How the blackjack trainer deals and scores a hand
Each round the blackjack trainer deals from a freshly shuffled shoe with as many decks as the chosen rules use: two cards for you and the dealer’s upcard. Every hit, stand, double, split or surrender is checked against the chart computed for those rules, then the hand plays out against the dealer.
Pick your play. Every decision is checked against the chart for these rules, then the hand plays out against the dealer.
- Decisions
- 0
- Chart plays
- 0 %
- Streak
- 0
- Net
- C$0
Review mistakes (0)
No mistakes yet. The last ten land here.
The scoreboard keeps four numbers. Decisions counts every play you make, chart plays gives the share that matched the chart, streak counts matching plays in a row, and net shows what those hands would have won or lost at C$25 a hand. Changing the rule set keeps the counters running across a session.
Every wrong choice lands in the mistake review below the table, which holds the last ten. Each line names the hand, the dealer’s card and the chart play with its fallback, such as surrender if the table offers it, otherwise hit. Reading those ten lines after a session shows the pattern far better than a single percentage.
The chart answers come from the same engine that prices the tables in our register, worked out for every rule set when the page is built. Your browser deals cards and looks the answer up. It never runs the maths, which is why the trainer loads quickly on a phone. It also matches the blackjack strategy chart cell for cell.
The eight rule sets in the blackjack trainer
Each option in the rule menu is a full rule set with its own chart and its own house edge, assuming a 3:2 blackjack payout unless the label says otherwise. The figures below are the engine’s results with every hand played by the chart, rounded to two decimals, and the third column lists what that rule set changes.
| Rule set in the trainer | House edge | What changes on the chart |
|---|---|---|
| 6 decks, S17, double after split, late surrender | 0.33% | Surrender 15 v 10 and 16 v 9, 10, A |
| 6 decks, S17, double after split | 0.41% | No surrender cells |
| 6 decks, H17, double after split | 0.62% | Double 11 v A, soft 18 v 2, soft 19 v 6 |
| 8 decks, S17, no double after split, one split | 0.61% | 2,2 and 3,3 v 2–3, 4,4 v 5–6, 6,6 v 2 become hits |
| 8 decks, S17, double after split | 0.43% | Same chart as six decks |
| 6 decks, European no hole card, S17 | 0.52% | Hit 11 v 10, hit 8,8 v 10 and A, hit A,A v A |
| Single deck, H17, blackjack pays 6:5 | 1.59% | Single-deck chart, payout cost on top |
| Land casino table: 6 decks, H17, no hole card, late surrender, one split | 0.58% | Surrender 15 v 10, A; 16 v 9, 10, A; 17 v A; 8,8 v A |
Surrender appears only in the two late-surrender rule sets, and the trainer hides its surrender button everywhere else. With the dealer standing on soft 17 there are four surrender cells. The land-casino rules add three, because a dealer who hits soft 17 turns hard 15, hard 17 and 8,8 against an ace into surrender plays.
The European no-hole-card table needs care. The dealer takes the second card only after the players act, and on that rule set a dealer blackjack also takes your doubles and splits. That is why the chart hits 11 against a 10 and stops splitting eights and aces against a ten or an ace, and why the edge climbs to 0.52%.
The land-casino table looks the same but plays differently. Its rules say a dealer blackjack takes only the original bet, so a double or split against an ace or a 10 risks nothing extra. We checked the engine’s chart against the same rules with a peeking dealer: every cell is identical, including doubling 11 against a 10.
A practice plan for basic strategy: pairs, soft hands, then hard 12 to 16
Five minutes a day on one drill does more than an hour on all hands, because the all-hands mode spends most of its deals on totals you already play well. The order below follows the chart, from the rows that come in neat blocks to the rows where the right play and the tempting play sit closest together.
Start with pairs. Pairs make up about 14.5% of two-card starting hands on a six-deck shoe, and most of that is ten-value pairs, which you always stand on. The rest of the pairs table learns in blocks: always split aces and eights, never split fives or tens, split nines except against a 7, 10 or ace.
The pairs table is also where rules move cells. Take away double after split and seven cells turn from split to hit. Move to a no-hole-card table where a dealer blackjack takes everything and eights and aces against an ace stop splitting. Drill pairs once on the rule set you will meet, then once more on the alternative.
Soft hands come second. They are about 9.5% of starting hands, rare enough that the answers feel wrong. Hitting soft 18 against a 9 looks odd until you see the numbers. Doubling soft 13 against a 5 looks reckless. On our engine, 19 of the 80 soft cells sit within five cents per dollar of the second-best play.
Hard 12 to 16 is the main work. These five rows are about 36.8% of all two-card starting hands, more than a third of every deal, and 16 of their 50 cells are within five cents per dollar of the second-best play. Hard 17 to 20 has one such cell in 40. That is where departures from the chart cluster.
The chart explains why. Each row of hard 12 to 16 flips from stand against a 2 to 6 to hit against a 7 to ace, but hard 12 breaks the pattern by hitting against a 2 and a 3. Hard 15 and 16 add surrender on some tables. Drill this group until the flip at 7 needs no thought.
After a week, switch the drill to all hands and watch the mistake review over the percentage. A score in the high nineties with the same two cells in the review means those two cells need another session. A score that drops when you change rule sets means you learned one chart, fine if you play only one table.
What a basic strategy mistake costs at the table
A wrong play does not lose every time. It gives up a little on average, and how much depends on the cell. The figures below come from our engine’s values for each play on six decks, S17, double after split and late surrender, given as the average cost per C$100 bet each time that hand is dealt.
| Hand v dealer | Chart play | Common mistake | Cost per C$100 bet | Dealt about once in |
|---|---|---|---|---|
| Hard 16 v 10 | Surrender | Stand | C$3.70 | 55 hands |
| Hard 11 v 10 | Double | Hit | C$5.45 | 68 hands |
| Hard 12 v 2 | Hit | Stand | C$4.04 | 159 hands |
| Hard 12 v 3 | Hit | Stand | C$1.97 | 156 hands |
| 10,10 v 6 | Stand | Split | C$24.80 | 137 hands |
| 8,8 v 10 | Split | Stand | C$5.70 | 568 hands |
| Soft 18 v 9 | Hit | Stand | C$8.41 | 1,088 hands |
| A,A v A | Split | Hit | C$10.30 | 2,477 hands |
The table shows two kinds of leak. Hard 16 against a 10 costs little each time but comes up often, so a habit of standing there adds up quickly. Splitting tens against a 6 is rarer and far dearer, because it breaks a 20 that wins most of the time into two hands that each start from a single ten.
Whole habits can be priced too. A player who never surrenders on this rule set pays 0.41% instead of 0.33%, an extra 0.07 percentage points. Doubling only on hard 10 and 11 adds 0.19 points. Never splitting anything adds 0.56 points, which more than doubles the 0.33% the chart leaves. The blackjack house edge calculator shows each rule’s cost.
None of this turns blackjack into a game the player is expected to come out ahead in. At 0.33% the house still keeps about 33 cents for every C$100 of starting bets over a long run, and short sessions swing far more than that. Practice only removes the part of the cost that comes from your own decisions.
From the blackjack trainer to a live Ontario table
The trainer has no clock. A live round does, and it moves on whether you are ready or not. Before you take a seat, read the table’s rules in its game help or on the placard: number of decks, whether the dealer hits soft 17, surrender, and whether a dealer blackjack takes doubles and splits.
Then set the trainer to the closest rule set and run fifty hands. Live tables differ in decks, soft 17 and surrender from one studio to the next, even inside one lobby. Our guide to live blackjack in Ontario shows which rule records each site’s Evolution and other studio tables match, and the table register gives every record’s edge.
Ontario sites registered with the AGCO and run under an agreement with iGaming Ontario need you to be 19 or older and physically in the province. If the rules on a table do not match any rule set here, open the chart page, set those rules and keep it open beside an online game.
Accessibility notes and what the trainer leaves out
The cards are drawn for sighted players, but each deal is also written out as text for screen readers: the dealer’s upcard, both of your cards and whether you hold a pair, a soft total or a hard total. The result of each choice is announced through a polite live region, so it does not interrupt the next announcement.
Every play is an ordinary button, reachable with the Tab key, and the five letter keys work while the trainer is on screen and focus is not inside the rule menu. Split is disabled unless you hold a pair. The card animation switches off when your device asks for reduced motion, and without JavaScript the page links to the chart.
The trainer leaves out insurance, which the chart never takes, and it does not drill later decisions, such as hitting a three-card 14 or playing split hands. Those follow the same total-based rows, so a hard 14 made of three cards plays like a two-card 14. One caveat remains: the chart assumes a fresh shuffle every round.