INTRODUCTION

 

DocFish is a game for two players and requires two decks of cards. Players must know how to factor numbers up to 14 (for example, 14 into 2 and 7).

 

During play, cards have their numeric face values except the following:

 

Aces (identified as A) have the value 14;

Kings,  (K), 13;

Queens, (Q), 12;

Jacks,  (J), 11.

 

Players must also be able to identify the prime numbered cards:

2, 3, 5, 7, 9, J, and K.

 

THE FIRST DECK IS THE BANK

 

The first deck is arranged into 13 stacks of like-numbered cards face up:

 

2, 3, 4, ..., Q, K, A.

 

The bank will be used during the game to “make change” which means to exchange cards with the bank for their factors, for example

 

a Q for a 3 and a 4,

    for a 2 and 6,

    or for a 2, 2 and 3.

 

The 2, 3, 4 and 6 are considered “embedded” in the Q.

 

The bank will also be used to exchange factors for their product, for example,

 

2 ,2 ,3 for their product Q.

 

Each player cuts the Playing Deck. The one who cuts to a prime goes first. If both cut to a prime, the lowest prime wins. Repeat until the starting player is chosen.

 

In these rules of play, the following language convention is used.

 

She” designates the active player (the person whose turn it is).

 

He” designates the other player.

 

THE SECOND DECK IS THE PLAYING DECK

 

He mixes the cards and deals. Cards are dealt face down, alternately to each player, until each player has a hand of five cards which is concealed.

 

The balance of the playing deck is placed face down where both players can reach it.

 

ANNOUNCEMENTS

 

An announcement is made before each action is performed.

 

When she makes an announcement, he listens and watches to make sure she performs the transaction correctly; and vice versa.

 

Other card values may be substituted, in the following list of announcements, for those used. The announcements are:

 

“Do you have any sevens?”

DocFish;”

“Making Change for fourteen: fourteen into the bank, two times seven out;”

“Seven down, seven into bank;”

“Two times seven into bank; fourteen out;”

“Two into bank;”

“Two out;”

“Fished My Wish;”

“Fished a Pair;”

“Consolidation;”

“No Consolidation;”

“Shortage in the Bank;”

“Frozen;”

“Change present;”

“Last card.”

 

The meaning of these will become clear as you read the rules. Quotation marks identify announcements.

 

Announcements help the players prevent mistakes. 

 

She makes the announcement “Making Change for fourteen: fourteen into the bank, two times seven out”.

 

He watches and makes sure an A is put into the bank, and a 2 and a 7 are withdrawn.

 

(At the end of these rules, a method will be described to help determine whether the game was played without errors.)

 

LAYING DOWN PAIRS

 

The object of the game is to lay down pairs of prime numbered cards. One card is laid face up before the player, becoming part of her pot. The other is placed face up in the bank.

 

Example during Preparation: If she has two 3's in her hand:

"Three down, three into bank."

She places one 3 into her pot and the other 3, face up into the bank.

 

Only pairs of primes are laid down. For example, if she has two A’s,

 

each A is exchanged with the bank for a 2 and a 7.

A pair of 2s is laid down.

And a pair of 7s is laid down.

 

The laying down of pairs may not be deferred. No pair of primes may be held in the hand from one turn to the next, whether primes are embedded or not.

THE BANK MAKES CHANGE

 

Embedded primes are considered present in the hand. For example, twos are embedded in even-numbered cards 4, 6, 8, 10, Q, A; and threes are embedded in 6, 9, and Q.

 

If she has a 9 in her hand, the 9 must be exchanged with the bank for two 3s, and a pair of 3s laid down.

 

CONSOLIDATION

 

Consolidation is a set of exchanges between pot and bank. In each exchange, groups of two or three cards in the pot are exchanged for one card in the bank which has the value of their product.

 

For example, before Consolidation, the pot may contain a 2 and a 3; after Consolidation it contains a 6.

 

Consolidation must result in a pot for which further Consolidation is impossible. It is performed in two steps.

 

First, she arranges cards in her pot into “Consolidation Groups”.

 

This must follow the “Sequence Rule”: all the lowest valued cards must be used in forming Groups.

 

If the Sequence Rule is followed correctly, no card in the pot is excluded from the Consolidation Groups if its value is lower than the highest valued card in any group.

 

Second, after Groups have been segregated, He gives her one card from the bank for each group. The bank card represents the product of the group. 

 

Example One:

Pot before Consolidation:    2,3,6,7.

“Consolidation.”

One group is segregated:          2,3     

She: “Two times three” putting them into the bank.

He: “Six out”, giving her a 6 from the bank in exchange.

Pot after Consolidation:          6,6,7.

 

In Example One, a 2 and 6 or a 2 and 7 could not be included in a Group, because this would have violated the Sequence Rule. It would have excluded the lower-valued 3.

 

Example Two:

Pot before Consolidation:     2,2,6,7,8.

“Consolidation.”

Two groups are segregated:    2,6   2,7  

She: “Two times six into bank.”

He: “Twelve out.”

She: “Two times seven into bank.”

He:  “Fourteen out.”

Pot after exchanges:          8,Q,A.

 

During Preparation (see below), a turn may include more than one Consolidation. After Preparation, Consolidation ends the turn. If she has no Group to Consolidate, she announces “No Consolidation”.


 

PREPARATION

 

Preparation is one special turn for each player at the start of the game. She goes first. She lays down all pairs from her hand, making change when necessary; and Consolidates. 

 

Sometimes during Preparation a card required to make change is not present in the bank. This pair should be avoided there are no alternate pairs of primes in her hand which can be laid down, making change when necessary.

 

She announces “Shortage in the bank,” and displays to her opponent the card for which change cannot be made.

 

She Consolidates, hoping to provide change for the bank.

 

If change has been provided for the bank through Consolidation, she continues to be the active player and to lay down additional prime pairs ending in another Consolidation; or announces “No Consolidation”.

 

He then follows the same procedure.

 

See EXAMPLE OF PREPARATION WITH MULTIPLE CONSOLIDATIONS at the end of the game instructions.

 

“FROZEN” DURING PREPARATION

 

Sometimes she discovers that a card required to make change is not present in the bank after she performs Consolidation. She announces “Shortage in the bank” and displays one of the cards needing change.

 

She then announces “Frozen” and places cards on the table which could not be laid down as pairs, because of the shortage in the bank.

 

One or more pairs of cards with embedded pairs are laid down, on her side of the table.

 

While they are frozen, they are not part of her pot and not part of her hand.

 

 

FROZEN CARDS ON THE TABLE

 

After any subsequent Consolidation, if change for the frozen cards is present in the bank, either person makes the announcement “Change Present”. The game is temporarily interrupted for the following action.

 

This example uses a frozen 7 and A. The person on whose side the cards are frozen makes the change.

 

“Fourteen into bank, two times seven out.”

 

If the frozen A came originally from her hand, the 2 goes into her hand.

If the frozen A came originally from his hand, the 2 goes into his hand.

 

The 7 goes into the hand of the person making the change. This person announces “Seven down, seven into bank” and performs the action.

 

Play continues.

 

PLAY AFTER PREPARATION

 

She chooses a prime number present in her hand and requests it. The prime may be embedded in another card.

 

For example:

 

She: “Do you have any twos?”

 

If he has a 2, he places it into the bank, announcing “Two into bank”.

 

She announces “Two down”, putting a 2 into her pot. 

 

If he does not have a 2 but has an A, he announces:

 

“Changing fourteen: fourteen into bank, seven times two out.”

 

He announces “Two into bank” while putting the 7 into his hand.

 

She announces “Two down”, while putting a 2 into her pot.

 

She remains the active player and continues with another question.

 

If she has run out of cards in her hand, she picks a card from the playing deck and continues with the picked card as her hand.

 

If the picked card has an embedded pair of primes (4 for example), she announces “Fished a Pair”. She makes change and lays down the pair. She picks another card.

 

When he does not have the card requested, he replies      DocFish”.

 

PLAY AFTER HE ANNOUNCES “DocFish”

 

She picks a card from the playing deck. If she picks the prime previously requested (or if the prime is embedded in the picked card), she announces “Fished My Wish”.

 

A pair is laid down (making change if necessary).

 

She continues as the active player and picks another card.

 

However, if she does not fish her wish, she looks for a pair of primes in her hand.

 

If there is a pair in her hand, she announces “Fished a Pair” and lays it down.

 

She announces “Consolidation” and performs it; or announces “No Consolidation”. This ends her turn.

 

He becomes the active player.

 

SHORTAGE IN THE BANK DURING AFTER PREPARATION

 

A shortage in the bank will result in a “premature Consolidation”. Consolidation ends her turn. In this situation, the turn ends without the statement “DocFish”.

 

This will be explained through an example, using the cards 7 and A.

 

She asks “Do you have any sevens?”

 

One possibility is that he gives her an A.

He gives her an A.

 

She discovers there is no 2 in the bank to make change.

 

“Consolidation.”

 

Consolidation provides a 2 to the bank.

Or, Consolidation does not provide a 2 to the bank.

“Changing fourteen: fourteen into bank, two times 7 out.”

She shows him the A. “Frozen fourteen and seven.”

She changes the A and gives him a 2.

She lays down the A and 7. They are on her side of the table but are not part of her pot or hand, while frozen.

“Seven down, Seven into Bank.”

Her turn is now over because a Consolidation took place. (The pair of 7s was not part of her Consolidation.)

Her turn is now over.

 


 

Another possibility is that she has the A.

He gives her a 7.

 

She has an A in her hand and discovers there is no 2 in the bank to make change.

 

“Consolidation.”

 

Consolidation provides a 2 to the bank.

Or, Consolidation does not provide a 2 to the bank.

“Changing fourteen: fourteen into bank, two times seven out.”

“Seven down.”

She shows him the A, “Frozen fourteen and seven”

A into bank, 2 into her hand. 7 into her pot.

She lays down an A and a 7 on her side of the table. They are not part of her pot or hand, while frozen.

Her turn is now over because a Consolidation took place. (The pair of 7s was not part of the Consolidation.)

Her turn is now over because a Consolidation took place.

 

LAST CARD IN PLAYING DECK

 

At some point in the game she draws the last card in the playing deck and announces “Last Card”.

 

He now has the opportunity to guess the value of that card.

 

If his guess is correct.

If his guess is incorrect.

The last card is given to him.

Her turn continues.

Her turn ends with “Consolidation.” She performs Consolidation.

If the game was played without mistakes, she will lay down pairs and win the remaining cards ending with her “Consolidation”.

He becomes the active player.

 

If the game was played without mistakes, he will lay down pairs and win the remaining cards ending with his “Consolidation”.

 

 

 

COUNTING SCORE

 

Each player totals the value of cards in his or her pot. The player with the higher sum is the winner.

 

FIND OUT WHETHER THE GAME PLAYED CORRECTLY

 

If no errors were made, at end of play neither hand has an unpaired prime.

 

Another indication of correct play is that the sum of primes in both pots equals equal 44. To determine this, each person counts the total number of primes in her or his pot.

Example of counting a pot:

Pot:              3,  6,  8   J,  J,  Q,  Q,  A.

Number of primes: 1 + 2 + 3 + 1 + 1 + 3 + 3 + 2.

Total primes in

        this pot: 16 .

 

The total of primes in the other pot should be 28. 16 + 28 = 44.

 

If the game was invalid (and you are a purist), it should be replayed.


 

EXAMPLE OF PREPARATION WITH MULTIPLE CONSOLIDATIONS

 

This example is unusual in the length of the procedure because of the four 8s in the first hand.

 

She does Preparation first. Her hand is:

 

7, 8, 8, 8, 8.

 

In the table below, her hand, part of the bank, and her pot are shown after each Action. Only twos, fours, and eights are shown in the bank (because the other cards are not relevant to the Actions).

 

       Action

  Her hand

2s, 4s, 8s in    Bank

  Her pot

 

7

8 8 8 8

2 2 2 2

4 4 4 4

 

“Changing eight: eight into bank, two times two times two out.”

2 2 2

7      

8 8 8

 

2

4 4 4 4

8

 

Two down, Two into bank.”

2  

7

8 8 8

2 2

4 4 4 4

8

2

“Changing eight: eight into bank, two times four out.”

 

2 2 

4

7

8 8

2

4 4 4

8 8

2

“Two down, two into bank.”

 

4

7

8 8

2 2

4 4 4

8 8

2 2

“Changing four: four into bank, two times two out.” 

2 2

7

8 8

4 4 4 4

8 8

2 2

“Two down, two into bank.”

7

8 8

2

4 4 4 4

8 8

2 2 2

“Changing eight: eight into bank, two times four out.”

2

4

7

8

4 4 4

8 8 8

2 2 2

She shows him an 8 from her hand and announces “Shortage in the bank.”

 

 

 

“Consolidation.” She segregates the group 2 2 2 in her pot and exchanges it for an 8 in the bank.

2

4

7

8

2 2 2

4 4 4

8 8

8

 


 

Preparation continues because change has been provided in the bank.

“Changing eight: eight into bank: two times two times two out.”

She exchanges an 8 for three 2s.

2 2 2 2

4

7

 

4 4 4

8 8 8

8

“Two down, two into bank.

2 2

4

7

2  

4 4 4

8 8 8

2

8

“Two down, two into bank.

She puts a 2 into the bank and a 2 into her pot.

 

4

7

 

2 2 

4 4 4

8 8 8

2 2

8

“Changing four: four into bank, two times two out.”

2 2

7

 

4 4 4 4

8 8 8

2 2

8

“Two down, two into bank."

 

7

 

2  

4 4 4 4

8 8 8

2 2 2

8

“Consolidation.

She segregates the group two, two, two in her pot and exchanges it for an 8.

7

 

2 2 2 2 

4 4 4 4

8 8 

8 8

Her Preparation turn has ended. His now begins.