Single-Deck Blackjack Rules
Single-deck games are marketed as the "best odds" table on the floor, but the deck-count advantage is almost always offset by worse rules elsewhere — this preset models the common real-world pairing: one deck, dealer hits soft 17, no double after split, no surrender.
Why this rule set matters
This is the clearest example of a rule-shopping trap: a single deck is worth roughly a third of a percentage point to the player versus 6 decks, but H17 alone costs about 0.22 points back, and losing DAS costs another 0.14 — the "single-deck edge" mostly evaporates once the rest of the table's rules are counted.
How the 0.49% is calculated
Starts from a 6-deck, S17, DAS, no-surrender, 3:2 baseline (≈0.46%) and adds the published effect of every rule above that differs from it — deck count, dealer soft-17 behavior, double after split, surrender, payout ratio. Same engine as the house edge calculator, so toggling any of these rules there reproduces this number exactly.