US 7,243,919 B2Granted

Card game

AssigneeBrian Ringuette

InventorBrian Ringuette

Life of this patent

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Abstract

The invention features a method of playing a card game using a deck of numbered cards. Each player is dealt a predetermined number of cards, so that each player possesses a card set, or “hand” of cards. The remaining cards form a draw pile, and one card from the draw pile is turned face up to start a separate discard pile. The object of the game is for each player to remove cards from its card set by discarding a card that is either a multiple or a divisor of a card shown on the top of a common discard pile.

Claims17

Dependent claims

A method for a plurality of players to play a mathematical card game based on multiplication and division of numbers and having a predetermined termination criteria, said method comprising the steps of:

a) providing a deck of cards wherein each of said cards has a numerical value (v) depicted on a face-up side of said card, and wherein a card of value v is present in said deck of cards n times, and nv is a function of possibilities (Pv), where Pv=Pmv+Pdv, mv is a multiple of v, dv is a divisor of v, Pmv is the number of possibilities for mv, and Pdv is the number of possibilities for dv;
b) dealing a predetermined number of cards from a deck of numbered cards to each of said players to form a card set for each player, and forming a discard pile by placing at least one of said remaining cards in face up position;
c) allowing one of said plurality of players to place a play card in face up position on said discard pile, each said play card having a numerical value that is a multiple or a divisor of a numerical value shown on the face of the discard pile;
and
d) repeating step (c) until said termination criteria is attained.

2 more elements

a) providing a deck of cards wherein each of said cards has a numerical value (v) depicted on a face-up side of said card, and wherein said deck of cards comprises a plurality of cards, each said card having a numerical value appearing on one side of each card, the distribution of ranks in said deck determined by a formula shown in Table 2 as follows:
No. of
Possible
Card
Combina-
/4 rounded
/3 rounded
Value
nations
/4 rounded
/3 rounded
no
no
(v)
(Pv)
all primes
all primes
primes > 25
primes > 25
1
50
13
17
13
17
2
26
7
9
7
9
3
17
4
6
4
6
4
14
4
5
4
5
5
11
3
4
3
4
6
11
3
4
3
4
7
8
2
3
2
3
8
9
2
3
2
3
9
7
2
2
2
2
10
8
2
3
2
3
11
5
1
2
1
2
12
9
2
3
2
3
13
4
1
1
1
1
14
6
2
2
2
2
15
6
2
2
2
2
16
7
2
2
2
2
17
3
1
1
1
1
18
7
2
2
2
2
19
3
1
1
1
1
20
7
2
2
2
2
21
5
1
2
1
2
22
5
1
2
1
2
23
3
1
1
1
1
24
9
2
3
2
3
25
4
1
1
1
1
26
4
1
1
1
1
27
4
1
1
1
1
28
6
2
2
2
2
29
2
1
1
0
0
30
8
2
3
2
3
31
2
1
1
0
0
32
6
2
2
2
2
33
4
1
1
1
1
34
4
1
1
1
1
35
4
1
1
1
1
36
9
2
3
2
3
37
2
1
1
0
0
38
4
1
1
1
1
39
4
1
1
1
1
40
8
2
3
2
3
41
2
1
1
0
0
42
8
2
3
2
3
43
2
1
1
0
0
44
6
2
2
2
2
45
6
2
2
2
2
46
4
1
1
1
1
47
2
1
1
0
0
48
10
3
3
3
3
49
3
1
1
1
1
50
6
2
2
2
2
b) dealing a predetermined number of cards from a deck of numbered cards to each of said players to form a card set for each player, and forming a discard pile by placing at least one of said remaining cards in face up position;
c) allowing one of said plurality of players to place a play card in face up position on said discard pile, each said play card having a numerical value that is a multiple or a divisor of a numerical value shown on the face of the discard pile;
and
d) repeating step (c) until said termination criteria is attained.

320 more elements

Dependencies are inferred from the claim text.

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Abstract