Blackjack — The Return Labelled by Strategy, Not Stated Flat
Dealer stands on all seventeens, blackjack pays 3:2, doubling is allowed on any two cards, and there are no splits. Measured over sixty thousand hands played by a simplified basic strategy — a figure that means nothing without those five rules attached, which is why they are attached.
Format: Blackjack · S17 · 3:2 · double any two · no splits · Demonstrates: Rule-set disclosure as a precondition of any published return
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The machine
| Dealer | Stands on all seventeens, soft included |
|---|---|
| Blackjack pays | 3:2 |
| Doubling | Permitted on any two cards |
| Splitting | Not available in this build |
| Basis of the figure | Measured over 60,000 hands at load, under a simplified basic strategy |
The rule that costs the most, and the one everyone quotes
Blackjack’s headline return is quoted constantly and is nearly always detached from the rules producing it. Two examples from the table above. Splitting is unavailable here, which costs the player roughly half a point against a game that allows it. And blackjack pays 3:2 — the payout now widely replaced on casino floors by 6:5, which removes about 1.4 points and is the single most expensive rule change in the game.
A 6:5 table advertising “99% RTP” from a 3:2 calculation is not lying about the arithmetic. It is quoting a different game.
What the simplified strategy means for the figure
The measurement plays a reduced basic-strategy table, not a full one, and there are no split decisions to model because splits do not exist here. The result is close to but below what a complete strategy would return on the same rules.
An earlier version of this page claimed a basic-strategy hint shown on every decision and on by default, and also claimed double-after-split — a rule that cannot exist in a game without splits. Neither shipped. Both have been removed, and the impossible rule is in the error ledger as a lesson about writing a page before checking the build.
The mathematics
Basis: measured. Sampled in your browser at page load and published with the interval that sample earned.
Dealer stands on all 17s, blackjack pays 3:2, doubling is allowed on any two cards, and this
build does not offer splits. The return is measured over 60,000 hands
played by a simplified basic strategy: 99.44%, ±0.81 at 95%
confidence.
Blackjack cannot publish an exact figure the way roulette can, because the return depends on how
the hand is played. A paytable is a fact; a strategy is a choice. So this figure is measured, it
carries its interval, and the strategy that produced it is named.
The rules that move the number
| Rule | Effect on return |
|---|---|
| Blackjack pays 3:2 (this build) | baseline |
| Blackjack pays 6:5 | about −1.4 points |
| Splits allowed | about +0.5 points |
| Dealer hits soft 17 | about −0.2 points |
The 6:5 line is the one worth carrying out of here. It is now common on real
casino floors, it is advertised as a table feature rather than a price change, and it costs more
than a full point — several times what any playing decision in this game is worth. A player
agonising over a soft 18 at a 6:5 table has already given away more than the decision can recover.
The simplified strategy used here is not optimal play, and the gap between them is real. Optimal
basic strategy on these rules reaches slightly higher than the figure above.
What the gate does before the game loads
Nine states have enacted statutory bans on the sweepstakes casino model, and six more closed their markets by enforcement without passing anything. Every one of those instruments turns on redeemable value. This platform has none, so it stays lawful in all fifty — but the geo-gate still names the statute, because a compliance claim that cannot be checked against a citation is a marketing claim.
Select New Jersey and the gate blocks the lobby citing A5447/S4282. Select Oklahoma and it plays, with an amber banner recording that SB 1589 takes effect on 1 November 2026. The distinction between an enacted ban and a ban in force is the sort of thing operators discover late; here it is in the interface, fed by the same weekly-verified database as the state tracker.