5 Card Swap Stud

Game Mechanics & Rules

5 Card Swap Stud is a five-card stud poker variant derived from 5 Card Stud. Before the raise/fold decision, the player may exchange between one and five cards from their hand for a cost equal to the Ante per card replaced. The dealer qualifies with Ace-King or better. Raise is exactly 2x the Ante. If the dealer does not qualify, only the Ante pays (1:1) and the Raise pushes.

1. Millionaire Mode is a paid $1 Royal Spades side bet that runs alongside the round; it does not reduce your main 5 Card Swap Stud payouts.
2. You receive five face-up cards; the dealer receives five cards with one face up.
3. Optionally exchange 1-5 cards by paying one Ante per card replaced. New cards are dealt immediately.
4. Choose to Raise (2x Ante) to continue or Fold to forfeit the Ante.
5. The dealer reveals all five cards. The dealer must hold Ace-King or better to qualify.
6. If the dealer does not qualify: Ante pays 1:1, Raise pushes. If the dealer qualifies and you win: Ante pays 1:1, Raise pays according to the hand-strength pay table. Ties push both bets.

Optimal Strategy & Analysis

The strategic complexity is substantially higher than 5 Card Stud due to the card exchange option. Optimal exchange decisions are hand-specific and depend on both the player's current holding and the dealer's exposed card. The general hierarchy: exchange cards that break up straights or flushes only when the alternative hand is significantly inferior; prioritise completing existing four-card flush and straight draws over holding unpaired high cards.

The exchange cost (1 Ante per card) is a direct wager and must be assessed against the EV gain from the improved hand. Exchanging one card to complete a four-card flush costs 1 Ante and increases win probability significantly; this is generally EV-positive. Exchanging three or more cards to improve from a high-card hand is rarely EV-positive because the replacement hand is drawn from a reduced deck with no guaranteed improvement. Mathematical exchange tables published by casino game analysts define exact decision thresholds for each scenario.

The raise/fold threshold in 5 Card Swap Stud mirrors 5 Card Stud: always raise with a pair or better; always fold with less than Ace-King; raise with Ace-King only when the dealer's up card matches one of your cards or is lower than your fourth-highest card. The card exchange complicates this threshold because post-exchange hand evaluation must account for the additional Ante cost already committed to the exchange.

Bankroll requirements are elevated relative to 5 Card Stud due to the multi-Ante exposure from exchanges. A session where exchanges are used frequently can commit up to 6x Ante per hand (1 Ante + 5 exchange + 2x Raise = 8 Ante theoretical maximum). Session bankroll of 80-120x Ante is recommended for exchange-heavy play styles, with strict stop-loss discipline given the medium-high volatility profile.

Provably Fair Verification

5 Card Swap Stud hand generation uses SHA-256(server_seed + ':' + client_seed + ':' + nonce) to produce the initial deck shuffle. The hex output is mapped to card indices via modular reduction across a 52-card deck sequence. When the player elects to exchange cards, replacement cards are drawn from the same seeded deck in index continuation, ensuring the full card sequence for any hand is deterministically reconstructable from the seed triple. The server seed SHA-256 commitment is published before each session.

Post-session verification requires the player to input the revealed server seed, their client seed, and the nonce for any hand into a SHA-256 tool. The deck sequence is reconstructed by the same index mapping, and both initial deal and exchange draws can be confirmed. Because exchanges draw from index continuation rather than a re-seed, the entire hand - initial deal and replacements - is determined by the single seed triple at hand start.

Millionaire Mode is a paid $1 Royal Spades side bet that runs alongside the round; it does not reduce your main 5 Card Swap Stud payouts. Whatever the seeded deck sequence produces in those positions is exactly what the check sees. The Joker never counts; only natural target-suit cards score.

Millionaire Mode Technical Details

Millionaire Mode is a paid $1 Royal Spades side bet added to every round. Main-table payouts are NOT reduced. Main bets must total at least $1 USD for the side bet to attach.

Each round, the cards dealt for the side bet are checked. The Royal Spades are the six top spades - 9, 10, Jack, Queen, King and Ace of spades. Every distinct Royal Spade among the dealt cards counts as one hit; a repeated rank does not count twice and the Joker never counts.

Paytable per $1 side bet: 6 hits = $1,000,000; 5 hits = $5,000; 4 hits = $325; 3 hits = $20; 2 hits = $2; 0 or 1 hits pay nothing.

The $1,000,000 prize is pre-funded and paid in a single transaction on six hits. Lower tiers pay alongside the round settlement. The Royal Spades result is independent of the main-game outcome.