Basic strategy and the house edge: what the numbers say
Verdict as of 13 November 2026: not verifiable on this page yet. The claim says basic strategy cuts the house edge; the primary source, a provider's published RTP with the strategy it assumes, is not yet recorded here. The claim fails when the table's rules differ from those the strategy chart was built for.
The claim we checked
The question readers ask: "Does basic blackjack strategy really reduce the house edge or is it only theory?"
Two ideas sit inside it. One is the arithmetic of expected loss. The other is a promise about results. Strategy can affect the first. It cannot promise the second.
Verdict: not verifiable yet
The comparison needs a provider's published RTP with basic strategy, a source for the strategy chart, and a date. None has been recorded.
| Source | What it should give | Date |
|---|---|---|
| Provider's rules for one variant | Published RTP and the play it assumes | Not checked |
| A strategy chart for the same rules | Moves by hand and dealer card; source to be named | Not checked |
| Derived: difference in expected loss | Edge without strategy minus edge with it | Not calculated |
We could not confirm the size of any difference, so we have not published one.
The arithmetic, with assumed edges
Expected loss = hands × stake × house edge. The edges below are assumed for illustration. They are not provider figures.
| Assumed house edge | Expected loss |
|---|---|
| 0.5% | £5 |
| 1% | £10 |
| 2% | £20 |
If strategy moved the edge from 2% to 1%, the expected loss over those hands would fall by £10. Real results scatter widely around such averages. The calculator runs the same formula.
When the claim does not hold
- The table pays 6:5 for a blackjack, so a chart built for 3:2 no longer fits; see 3:2 or 6:5.
- A side bet is added, which has its own edge.
- The published RTP assumes a different rule set from the one on your table.
- You change stake after losses; see the Martingale.
How we checked and what is missing
We defined the terms and set out the formula. Definitions are on house edge, basic strategy and RTP in blackjack.
We need three things: the provider's published RTP with the strategy it assumes and its date, a named source for the chart, and the derived difference with its formula. Until then the verdict is open.
Quick answers
- Does basic strategy guarantee a result?
No. It lowers the expected loss per hand when the table's rules match the chart. A session's result still varies, and you can lose.
- What is the house edge in simple terms?
It is the share of each stake the casino expects to keep over many hands. The house edge is one minus the RTP when RTP is stated for the same rules and play.
- Why do the rules of a table matter for strategy?
A strategy chart is built for one set of rules. If payout, dealer rule or decks differ, the chart and the published figure may not match.
- Where do I find the published RTP for a table?
In the provider's rules for that variant. This page records no figure yet, so read the provider's page and note the date.