Mathematics

The Mathematics of Deuces Wild

Comprehensive analysis of the four-wild-card variant, including the famous 100.76% full-pay version and the complex strategy required for optimal play.

The Mathematics of Deuces Wild

Deuces Wild represents one of the most fascinating variants in video poker, offering the only widely-available game with a theoretical return exceeding 100% when played with perfect strategy. The four wild cards fundamentally change both the mathematics and the strategy.

Full-Pay Deuces Wild (100.76%)

The legendary "Full-Pay" Deuces Wild offers a theoretical return of 100.76% with perfect play—meaning the player has a mathematical edge over the house.

The Full-Pay Paytable

HandPayout (per coin)Natural Royal Flush800Four Deuces200Wild Royal Flush25Five of a Kind15Straight Flush9Four of a Kind5Full House3Flush2Straight2Three of a Kind1

What Makes It Special

The 100.76% return depends on several factors:

  • Natural Royal pays 800:1 (same as Jacks or Better)
  • Four Deuces at 200:1 provides significant return
  • Wild Royal at 25:1 hits more often than natural
  • Low-tier hands (Flush, Straight) pay minimally
  • The Impact of Wild Cards

    Having four deuces as wild fundamentally changes game mathematics:

    Frequency Shifts

    Hands occur at dramatically different rates:

    HandJoB FrequencyDeuces Wild FrequencyThree of a Kind7.44%28.45%Four of a Kind0.24%4.91%Straight1.12%5.78%Flush1.10%2.48%Full House1.15%2.13%

    Strategic Implications

    The wild cards create counterintuitive plays:

  • Never hold a single deuce alone—always look for other combinations
  • Pairs become less valuable—deuces create three-of-a-kind opportunities
  • Drawing for wilds changes expected values
  • Natural hands sometimes trump wild ones
  • Strategy Complexity

    Deuces Wild requires significantly more complex strategy than Jacks or Better:

    Hands by Number of Deuces

    The optimal strategy depends heavily on how many deuces you're dealt:

    Four Deuces: Hold all—guaranteed 200:1 payout

    Three Deuces:

  • Hold with any Wild Royal
  • Otherwise, hold three deuces alone
  • Two Deuces:

  • Complex hierarchy of possible draws
  • Four of a Kind or better—hold
  • Four to Royal—draw one
  • Otherwise—hold deuces alone
  • One Deuce:

  • Most complex decision tree
  • Multiple penalty card situations
  • Dozens of exception cases
  • No Deuces:

  • Similar to JoB but with different priorities
  • Four to Royal beats all pairs
  • Low pairs much less valuable
  • Strategy Card Complexity

    While JoB strategy fits on a simple card, Deuces Wild requires:

  • Five separate strategy hierarchies (0-4 deuces)
  • Dozens of exception cases
  • Penalty card awareness
  • Practice for reliable execution
  • Variance Characteristics

    Deuces Wild has distinctive variance properties:

    Lower Overall Variance

    Despite high jackpot pays, the frequent Three of a Kind (28.45%) creates stability.

    Jackpot Distribution

    The Royal Flush contributes less to RTP because:

  • Natural Royal hits ~1 in 45,000 hands
  • Wild Royal hits ~1 in 555 hands
  • More return comes from frequent hands
  • Bankroll Requirements

    For recreational play, Deuces Wild is friendlier than high-variance games like Double Double Bonus, requiring smaller bankrolls for equivalent risk of ruin.

    Short-Pay Degradation

    Casinos modify Deuces Wild paytables to create house edge:

    VersionKey ReductionRTPFull PayNone100.76%15/9/4Four of a Kind to 499.73%15/9/4 (NSUD)Not-So-Ugly Ducks99.73%15/8/4Straight Flush to 898.91%13/4Various reductions97.58%10/4Common casino version94.82%

    Finding Full-Pay

    True full-pay Deuces Wild has become rare:

  • Once common in Las Vegas
  • Now typically found only in select casinos
  • Higher denominations more likely to offer full pay
  • Some online casinos still offer it
  • Advantage Play Implications

    The 100.76% RTP makes Deuces Wild attractive for advantage players, but with caveats:

    Practical Considerations

  • Strategy mastery required: Errors quickly eliminate the edge
  • Casino awareness: Casinos know these games favor players
  • Availability: Finding full-pay is increasingly difficult
  • Complementary play: Slot club benefits can enhance returns
  • Historical Context

    In the "golden age" of advantage play (1990s-2000s), full-pay Deuces Wild was a staple:

  • Professional players could expect hourly profit
  • Combined with slot club points for additional value
  • Casino comps added further return
  • Represented true professional gambling opportunity
  • Why Casinos Offered It

    The question arises: why offer a game with negative house edge?

  • Recreational player errors: Most players don't achieve 100.76%
  • Traffic generation: Attracts players who also play other games
  • Slot club offset: Points cost is factored into game economics
  • High-denomination focus: Better pays at quarters or dollars
  • Competition: Once standard, removing it risked losing customers
  • The gradual elimination of full-pay Deuces Wild marks the end of an era when advantage play was a viable profession using video poker alone.