How sources are used
Important figures are checked against the complete rules and denominator stated on the page. When a guide uses a simplified strategy, we label it as simplified. Commercial relationships do not determine which source or conclusion is used.
Wizard of Odds — game mathematics
Independent combinatorial analyses, calculators, strategy thresholds and pay-table comparisons used for cross-checking casino-game mathematics.
Wizard of Odds — Spanish 21
Rule-specific S17, H17, redoubling, Super Bonus and Match the Dealer calculations used for the Spanish 21 cornerstone model.
Wizard of Odds — Free Bet Blackjack
Standard six-deck rules, base-game house edge, rule effects and optional-wager calculations used for the Free Bet model.
Wizard of Odds — Mississippi Stud
Published pay table, optimal strategy thresholds, house edge and element-of-risk calculations used for the Mississippi Stud model.
Wizard of Odds — blackjack strategy calculator
Rule-selectable reference used to check basic-strategy decisions against deck count, soft-17, doubling, surrender and dealer-hole-card rules.
Wizard of Odds — single-deck blackjack strategy
Deck-specific reference used to cross-check the site’s single-deck total-dependent chart.
Wizard of Odds — double-deck blackjack strategy
Deck-specific reference used to cross-check the site’s double-deck S17 and H17 charts.
Wizard of Odds — 4–8 deck blackjack strategy
Multi-deck reference used to cross-check the site’s six-deck S17 and H17 charts and surrender variations.
Nevada Gaming Control Board
Official Nevada regulatory information, gaming rules and problem-gambling resources.
Washington State Gambling Commission — approved games
Regulatory directory used to locate approved rules and equipment for proprietary table games.
Light & Wonder — table games
Manufacturer material used to identify branded table-game families and distinguish proprietary variants.
Galaxy Gaming — High Card Flush
Manufacturer overview used to identify the core High Card Flush wager structure; the posted casino pay table still controls the calculation.
Galaxy Gaming — game licensing catalog
Manufacturer catalog used to cross-check proprietary poker titles and variant names.
National Council on Problem Gambling
U.S. problem-gambling information and access to help resources.
GamCare
Free information and support for people affected by gambling harm in Great Britain.
Google Search Central
Technical search documentation used for the site’s crawling, canonical, metadata and structured-data practices.
Corrections
If a cited rule, figure or link is outdated, email [email protected] with the page and the supporting material.
September 21, 2026. External pages can change after review.