The hand: 7♠ 8♠ 9♠ 5♥ 6♥ [WILD] 10♠ 10♥ 10♦ K♣ 5♠ 2♦ 3♦ 4♦
The hand is a thirteen-card deal. The suit pattern is clear: spades, hearts, diamonds. The joker is the wild joker for the hand. The hand's working reads are: a pure sequence in spades (7♠ 8♠ 9♠), an impure sequence in hearts (5♥ 6♥ [WILD]), a set in tens (10♠ 10♥ 10♦), a possible pure sequence in diamonds (2♦ 3♦ 4♦), and a trail in clubs (K♣). The hand is a valid declaration on first read.
The hand's working reads assume the player draws a card from the closed stock on the first draw. The discard pile is the top card of the discard pile at the start of the hand. The closed stock has 49 cards left after the deal.
Worked example: the same hand, played three ways.
Hand 1: hold and declare
The player draws a card from the closed stock. The card is a 5♦. The player discards the 5♠ trail. The hand reads: pure sequence (7♠ 8♠ 9♠), impure sequence (5♥ 6♥ [WILD]), set (10♠ 10♥ 10♦), pure sequence (2♦ 3♦ 4♦), trail (5♦). The hand is a valid declaration. The player declares at the start of the next turn. The deadwood is 5 (the 5♦ trail).
The verdict: a valid declaration. The player wins the hand. The deadwood is 5. The player earns the deadwood of every losing seat. The cost of the hand is the time spent, not the deadwood.
Source: worked example, Royal Pro Rummy desk play-log.
Hand 2: hold and drop late
The player draws a card from the closed stock. The card is a 2♠. The player discards the 2♠ trail. The hand reads: pure sequence (7♠ 8♠ 9♠), impure sequence (5♥ 6♥ [WILD]), set (10♠ 10♥ 10♦), pure sequence (2♦ 3♦ 4♦), trail (5♠). The hand is still a valid declaration. The player holds on for one more draw. The next draw is a Q♣. The player discards the K♣. The hand is still a valid declaration. The player holds on for one more draw. The next draw is an A♠. The player discards the 5♠. The hand is still a valid declaration. The player finally declares on the third draw. The hand is still a valid declaration. The deadwood is 0 (no trails).
The verdict: a valid declaration, but the player took three extra draws to reach the same hand. The cost of the hand is the time spent, not the deadwood. The drop decision would have been a first-drop at 20 points, not the full-show at 0 points.
Source: worked example, Royal Pro Rummy desk play-log.
Hand 3: drop first
The player draws a card from the closed stock. The card is a 2♣. The player discards the 2♣. The hand reads: pure sequence (7♠ 8♠ 9♠), impure sequence (5♥ 6♥ [WILD]), set (10♠ 10♥ 10♦), pure sequence (2♦ 3♦ 4♦), trail (K♣). The hand is still a valid declaration. The player considers the drop decision. The probability of holding a pure sequence by mid-game is 35%; the player has a pure sequence. The probability of holding a second sequence is 55%; the player has a second sequence. The probability of holding a set is 65%; the player has a set. The hand is a strong declaration.
The player chooses to declare on the second draw. The verdict: a valid declaration. The deadwood is 0 (no trails). The player's drop decision was to hold, not to drop. The cost of the hand is the time spent, not the deadwood.
Source: worked example, Royal Pro Rummy desk play-log.